MNTN builds advertising software for brands to drive measurable conversions, revenue, site visits and more through the power of television. 

MNTN Performance TV is the world’s first and only Connected TV advertising platform optimized for direct-response marketing goals. It redefines what advertisers can do with television, giving them the power to tie performance directly to their TV campaigns.

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At MNTN, we put our people first, full stop. This allows our company culture to be defined by our team members and their shared values, like trust, ambition, quality, radical honesty, and compassionate leadership. It’s why we all really&nbsp;love working for the Hardest Working Software in Television™ (and also why we were named one of Ad Age’s Best Places To Work in 2024.) We pride ourselves on bringing unrivaled performance and simplicity to Connected TV advertising. Our self-serve technology makes running TV ads as easy as search and social, helping brands drive measurable conversions, revenue, site visits, and more. It’s what led MNTN to being named one of Fast Company's Most Innovative Companies in 2023. You can learn more about us and everything we do by visiting https://mountain.com/. We’re committed to innovation that empowers, not replaces. At MNTN, AI is a tool for growth, enhancing efficiency while keeping a people-first approach. Our goal is to streamline workflows and drive new solutions—without compromising the human element that makes our company great. So if wanting to do more, own more, and make a bigger impact comes naturally to you, then you may be the person we're looking for to join us in our next stage of growth.The MNTN API Squad owns the APIs to serve both external partners and internal teams, acting as the core contract behind all MNTN UIs and integrations. The squad builds and operates scalable, reliable APIs—allowing customers to operationalize advertising directly through code. If you enjoy building platform APIs that enable scale, automation, and deep product integration, this role may be a great fit. What you’ll do: Be part of a team that focuses on our next-generation API platform. Architect and evolve large-scale backend systems, foundational platform services, and API ecosystems that enable backend and frontend teams to move faster with consistency and reliability. Familiar with API-first design, concepts such as Atomic API design. Define and refine domain models, service boundaries, and system interactions using domain-driven design (DDD) principles. Participate in technical discussions across engineering teams, driving alignment on architecture, standards, documentation, and long-term platform strategy. Design and drive implementation of scalable, observable, and fault-tolerant services—including caching, messaging, data pipelines, and service orchestration. Expert in Observability-first development. Partner with backend and frontend teams to ensure APIs and platform capabilities strongly support user experience and frontend architecture patterns (including MFE). Conduct deep-dive technical investigations, performance tuning, and root-cause analysis for complex systems in production. Establish best practices for testing, release engineering, and operational excellence across the engineering organization. Champion platform security, reliability, scalability, and long-term maintainability in every stage of the development lifecycle. What you’ll bring: 5+ years building and scaling backend systems, distributed architectures, and API-driven platforms, with a strong record of delivering reliable, adaptable services. Apply strict enforcement of best practices and ensure adherence to public API standards, such as OpenAPI. Deep expertise in API strategy and design (REST, GraphQL, event-driven), including versioning, governance, and lifecycle management across domains. Hands-on experience with modern backend languages (Node.js, TypeScript) and the ability to guide teams on best practices and technology choices. Strong proficiency with relational databases—especially PostgreSQL—covering schema design, indexing, performance tuning, and data modeling. Solid understanding of cloud-native architectures (GCP preferred), IaC tools, security principles, identity/auth, and production observability. Comfort with development environments, scripting, debugging, and performance tuning, with a focus on automation and improving developer workflows. Strong knowledge of CI/CD, automated testing, Git workflows, and release processes to ensure reliable, high-quality deployments. Experience collaborating with UI/UX and frontend teams, with awareness of how API and domain design shape client architecture (including MFEs). Excellent communication skills, able to translate complex architectural concepts into clear guidance for both technical and non-technical stakeholders. MNTN Perks: 100% remote within the US Flexible vacation policy Annual vacation allowance for travel related expenses Three-day weekend every month of the year Competitive compensation 100% healthcare coverage 401k plan Flexible Spending Account (FSA) for dependent, medical, and dental care Access to coaching, therapy, and professional development About MNTN: Our recruiters will always reach out using an email address ending with @mountain.com OR @mntn.com. If you’re contacted by someone without that address and they mention a Reference Code (which we never use), then&nbsp;that ain’t us folks.&nbsp;Tell those trolls to take a hike–you’re waiting to climb a MNTN. MNTN provides advertising software for brands to reach their audience across Connected TV, web, and mobile. MNTN Performance TV has redefined what it means to advertise on television, transforming Connected TV into a direct-response, performance marketing channel. Our web retargeting has been leveraged by thousands of top brands for over a decade, driving billions of dollars in revenue. Our solutions give advertisers total transparency and complete control over their campaigns all with the fastest go-live in the industry. As a result, thousands of top brands have partnered with MNTN, including Tarte, Decked, and National University. #LI-Remote

Senior Software Engineer, API Platform

At MNTN, we put our people first, full stop. This allows our company culture to be defined by our team members and their shared values, like trust, ambition, quality, radical honesty, and compassionate leadership. It’s why we all really love working for the Hardest Working Software in Television™ (and also why we were named one of Ad Age’s Best Places To Work in 2025.) We pride ourselves on bringing unrivaled performance and simplicity to Connected TV advertising. Our self-serve technology makes running TV ads as easy as search and social, helping brands drive measurable conversions, revenue, site visits, and more. It’s what led MNTN to being named one of Fast Company's Most Innovative Companies in 2023. You can learn more about us and everything we do by visiting https://mountain.com/. We’re committed to innovation that empowers, not replaces. At MNTN, AI is a tool for growth, enhancing efficiency while keeping a people-first approach. Our goal is to streamline workflows and drive new solutions—without compromising the human element that makes our company great. So if wanting to do more, own more, and make a bigger impact comes naturally to you, then you may be the person we're looking for to join us in our next stage of growth.The MNTN Creative Delivery Services team manages ad delivery from backend to front end. As part of this team, you’ll contribute to the core infrastructure that drives creative processing, delivery, and optimization across our entire platform. You'll be joining the group that owns our high-volume ad server and the pipelines that manage how creative assets are ingested, transformed, and served. As a Backend Engineer, you'll play a key role in developing scalable systems, improving performance, and building new integrations that expand creative capabilities for some of the world’s most recognizable brands. Your work will directly impact the flexibility, speed, and reliability of our ad experiences—at scale. What you’ll do Design, build, and operate high-throughput Java/Kotlin services that power our ad server and creative delivery pipelines Own systems end-to-end — from API design and ingestion flows to transformation, caching, and global delivery Work across the stack when needed (Rust services, Kafka streams, Terraform, relational databases) to solve the right problem with the right tool Improve performance, observability, and resiliency of critical production systems running at scale Partner closely with Product and Project leads to translate business needs into scalable technical solutions Contribute to architectural decisions that shape the future of our creative platform Raise the engineering bar through thoughtful code reviews, design discussions, and pragmatic best practices What success looks like You own and evolve high-scale services within our ad serving and creative delivery platform, ensuring low-latency, high-availability performance under sustained traffic. You design and ship scalable solutions that measurably improve system reliability, throughput, or cost efficiency. You proactively identify architectural risks and technical debt, driving improvements before they impact customers or operations. What you’ll bring 5+ years building production-grade backend systems in Java, Kotlin, or Scala A product mindset — you care about why you’re building something, not just what you’re building Experience designing and operating high-scale, distributed systems Strong SQL fundamentals — schema design, indexing strategies, query optimization, and performance tuning Comfort working across multiple technologies and services, even outside your primary language Solid understanding of RESTful APIs and microservices architecture Familiarity with messaging systems (e.g., Kafka) and asynchronous processing patterns Practical use of AI-assisted development tools (Cursor, ChatGPT, LLM copilots) to improve speed and quality MNTN Perks 100% remote within the US Flexible vacation policy Annual vacation allowance for travel related expenses Three-day weekend every month of the year Competitive compensation 100% healthcare coverage 401k plan Flexible Spending Account (FSA) for dependent, medical, and dental care Access to coaching, therapy, and professional development About MNTN Our recruiters will always reach out using an email address ending with @mountain.com OR @mntn.com. If you’re contacted by someone without that address and they mention a Reference Code (which we never use), then&nbsp;that ain’t us folks.&nbsp;Tell those trolls to take a hike–you’re waiting to climb a MNTN. MNTN provides advertising software for brands to reach their audience across Connected TV, web, and mobile. MNTN Performance TV has redefined what it means to advertise on television, transforming Connected TV into a direct-response, performance marketing channel. Our web retargeting has been leveraged by thousands of top brands for over a decade, driving billions of dollars in revenue. Our solutions give advertisers total transparency and complete control over their campaigns all with the fastest go-live in the industry. As a result, thousands of top brands have partnered with MNTN, including Tarte, Decked, and National University. #LI-Remote

Senior Software Engineer

At MNTN, we put our people first, full stop. This allows our company culture to be defined by our team members and their shared values, like trust, ambition, quality, radical honesty, and compassionate leadership. It’s why we all really love working for the Hardest Working Software in Television™ (and also why we were named one of Ad Age’s Best Places To Work in 2025.) We pride ourselves on bringing unrivaled performance and simplicity to Connected TV advertising. Our self-serve technology makes running TV ads as easy as search and social, helping brands drive measurable conversions, revenue, site visits, and more. It’s what led MNTN to being named one of Fast Company's Most Innovative Companies in 2023. You can learn more about us and everything we do by visiting https://mountain.com/. We’re committed to innovation that empowers, not replaces. At MNTN, AI is a tool for growth, enhancing efficiency while keeping a people-first approach. Our goal is to streamline workflows and drive new solutions—without compromising the human element that makes our company great. So if wanting to do more, own more, and make a bigger impact comes naturally to you, then you may be the person we're looking for to join us in our next stage of growth.This position is on the DevOps team, supporting the MNTN platform and Engineers. The right person will not only have a deep knowledge of system administration and GCP, but will also be able to work with a variety of Developers. You will work closely with our Engineering team and help meet the service's requirements. What you’ll do Design, provision, and manage infrastructure primarily on Google Cloud (GKE) and other cloud environments, with Kubernetes as the core platform abstraction. Work directly with engineering counterparts on the design and implementation of cloud-based infrastructure solutions. Build platform capabilities, internal developer portal (IDP) components, and self-service tooling that reduces friction for engineers and standardizes how services run in production. Design and build automations and infrastructure tooling with GitOps as a fundamental principle, integrating with APIs, cloud SDKs, and Kubernetes components. Create and manage CI/CD pipelines (e.g., ArgoCD, Argo Rollouts, Argo Workflows, GitHub Actions), ensuring safe, observable, and repeatable deployments across environments. Partner with engineering teams to define scalable infrastructure patterns, reusable modules, and cost-efficient solutions based on usage and growth requirements. Monitor infrastructure spend and contribute to cost analysis, optimization, and FinOps practices to improve cloud efficiency. Improve observability, alerting, SLOs, and runbooks to strengthen reliability and incident response. Implement cloud security and compliance best practices, including IAM design, workload identity, secrets management, and container security standards. What success looks like Ensures our Kubernetes platform runs predictably and resiliently in production, with fewer incidents, faster recovery, and strong operational discipline across environments. Delivers meaningful improvements to developer experience by increasing automation, expanding self-service capabilities, reducing friction, and earning high trust and satisfaction from engineering teams. Continuously enhances platform standards, automation, and cost governance - improving infrastructure safety, consistency, security, and efficiency. What you’ll bring 5+ years in DevOps, SRE, or Platform Engineering, with strong production experience in GCP and Kubernetes (GKE). Experience with additional cloud providers is a plus. Strong automation skills, programming and scripting in Python, including working with APIs, SDKs, and CLIs. Proven experience operating Kubernetes in production, including Helm, ArgoCD, operators, Kustomize, networking, autoscaling, and RBAC. Deep expertise in Terraform / OpenTofu and infrastructure-as-code best practices; experience designing reusable modules and managing multi-environment deployments. Terragrunt is a plus. Hands-on experience supporting hybrid or multi-cloud deployments where appropriate. Solid understanding of cost modeling, tagging strategies, and cloud cost optimization techniques (FinOps awareness a plus). Familiarity with microservices architectures, service discovery, and containerization workflows. A platform mindset: you’ve built tools, abstractions, or paved roads that improve developer velocity and system reliability. Strong communication skills and a habit of clear, useful documentation. MNTN Perks 100% remote within the US Flexible vacation policy Annual vacation allowance for travel related expenses Three-day weekend every month of the year Competitive compensation 100% healthcare coverage 401k plan Flexible Spending Account (FSA) for dependent, medical, and dental care Access to coaching, therapy, and professional development About MNTN Our recruiters will always reach out using an email address ending with @mountain.com OR @mntn.com. If you’re contacted by someone without that address and they mention a Reference Code (which we never use), then&nbsp;that ain’t us folks.&nbsp;Tell those trolls to take a hike–you’re waiting to climb a MNTN. MNTN provides advertising software for brands to reach their audience across Connected TV, web, and mobile. MNTN Performance TV has redefined what it means to advertise on television, transforming Connected TV into a direct-response, performance marketing channel. Our web retargeting has been leveraged by thousands of top brands for over a decade, driving billions of dollars in revenue. Our solutions give advertisers total transparency and complete control over their campaigns all with the fastest go-live in the industry. As a result, thousands of top brands have partnered with MNTN, including Tarte, Decked, and National University. #LI-Remote

Software Engineer, DevOps

At MNTN, we put our people first, full stop. This allows our company culture to be defined by our team members and their shared values, like trust, ambition, quality, radical honesty, and compassionate leadership. It’s why we all really love working for the Hardest Working Software in Television™ (and also why we were named one of Ad Age’s Best Places To Work in 2025.) We pride ourselves on bringing unrivaled performance and simplicity to Connected TV advertising. Our self-serve technology makes running TV ads as easy as search and social, helping brands drive measurable conversions, revenue, site visits, and more. It’s what led MNTN to being named one of Fast Company's Most Innovative Companies in 2023. You can learn more about us and everything we do by visiting https://mountain.com/. We’re committed to innovation that empowers, not replaces. At MNTN, AI is a tool for growth, enhancing efficiency while keeping a people-first approach. Our goal is to streamline workflows and drive new solutions—without compromising the human element that makes our company great. So if wanting to do more, own more, and make a bigger impact comes naturally to you, then you may be the person we're looking for to join us in our next stage of growth.The Backend Reporting squad builds and operates the data foundation that powers customer-facing reporting and decision-making at MNTN. We own the full lifecycle of reporting data, from raw log-level ingestion to trusted, production-grade analytics systems that serve as the single source of truth for enterprise reporting. This includes core performance metrics, incrementality, invoicing data, medallion-layer transformations in BigQuery, SQLMesh models, Airflow orchestration, ClickHouse serving, and the systems that enforce data quality, freshness, performance, cost efficiency, and reporting SLAs. The team is accountable for reporting correctness end to end. We are hiring a Staff Software Engineer in Data Engineering to act as a senior technical leader on this platform. This is a hands-on role focused on architecting and evolving production-grade data systems with real SLAs and cost constraints. You will set technical standards, drive architectural decisions, and partner with Engineering and Product to ensure the reporting foundation scales without becoming brittle or inconsistent. What you’ll do Own the technical architecture of the reporting data platform across ingestion, transformation, serving, and observability layers. Design and evolve metric computation systems, including versioning strategies, backfills, schema evolution, and change management that preserve correctness and stakeholder trust. Lead the design of transformations across the medallion architecture in BigQuery, ensuring performance, cost efficiency, and clarity of ownership. Define and enforce engineering standards for SQLMesh models, orchestration patterns, testing coverage, and code review quality. Build and mature automated data quality frameworks, reconciliation systems, and data contracts that prevent regressions and detect anomalies early. Act as the technical lead during reporting incidents, driving root cause analysis and implementing durable systemic fixes rather than one-off patches. Partner with UI, API, and Program teams to shape reporting requirements early and translate ambiguous business asks into clear, durable system design. Continuously improve query performance, storage patterns, and workload optimization in BigQuery and ClickHouse to maintain predictable cost and latency. Identify architectural risks and technical debt early and create pragmatic, staged plans to remediate them without stalling product velocity. Mentor and level up Data Engineers and Analytics Engineers through design reviews, pairing, and by setting a high bar for production readiness. What success looks like Faster, safer iteration on metrics and KPIs Reporting metrics are consistent, versioned, and trusted across all downstream consumers. Data incidents are rare, and when they occur, the systems in place make detection and remediation fast and methodical. Schema changes and new metric launches happen with minimal regression risk. Analytics workloads have predictable cost and performance characteristics. Clear technical standards exist for modeling, orchestration, and testing, and the team consistently adheres to them. The reporting platform evolves without accruing brittle logic or unowned complexity. What you’ll bring 8+ years of experience in software or data engineering, including significant ownership of production analytics platforms. Deep experience designing and operating large-scale data platforms in production environments with explicit SLAs for freshness, correctness, and performance. Strong expertise in SQL-based analytics systems, including complex transformations, backfills, schema evolution, and metric governance. Hands-on experience with modern analytics tooling such as SQLMesh or dbt-class frameworks, Airflow-class orchestration, and columnar data warehouses like BigQuery. Demonstrated ability to design for operability, including observability, alerting, testing strategies, and incident management. Strong systems thinking. You understand how upstream event design, transformation logic, serving layers, and cost models interact. A track record of reducing operational toil through automation, standardization, and clear architectural patterns. Ability to influence technical direction across teams without formal authority, using clear reasoning and strong design artifacts. Comfort operating in ambiguous product spaces where requirements evolve and tradeoffs between speed, accuracy, and complexity must be made explicit. A pragmatic mindset. You care about long-term durability, but you also know how to sequence work so the platform improves without blocking the business. MNTN Perks 100% remote within the US Flexible vacation policy Annual vacation allowance for travel related expenses Three-day weekend every month of the year Competitive compensation 100% healthcare coverage 401k plan Flexible Spending Account (FSA) for dependent, medical, and dental care Access to coaching, therapy, and professional development About MNTN Our recruiters will always reach out using an email address ending with @mountain.com OR @mntn.com. If you’re contacted by someone without that address and they mention a Reference Code (which we never use), then&nbsp;that ain’t us folks.&nbsp;Tell those trolls to take a hike–you’re waiting to climb a MNTN. MNTN provides advertising software for brands to reach their audience across Connected TV, web, and mobile. MNTN Performance TV has redefined what it means to advertise on television, transforming Connected TV into a direct-response, performance marketing channel. Our web retargeting has been leveraged by thousands of top brands for over a decade, driving billions of dollars in revenue. Our solutions give advertisers total transparency and complete control over their campaigns all with the fastest go-live in the industry. As a result, thousands of top brands have partnered with MNTN, including Tarte, Decked, and National University. #LI-Remote

Staff Software Engineer

At MNTN, we put our people first, full stop. This allows our company culture to be defined by our team members and their shared values, like trust, ambition, quality, radical honesty, and compassionate leadership. It’s why we all really love working for the Hardest Working Software in Television™ (and also why we were named one of Ad Age’s Best Places To Work in 2025.) We pride ourselves on bringing unrivaled performance and simplicity to Connected TV advertising. Our self-serve technology makes running TV ads as easy as search and social, helping brands drive measurable conversions, revenue, site visits, and more. It’s what led MNTN to being named one of Fast Company's Most Innovative Companies in 2023. You can learn more about us and everything we do by visiting https://mountain.com/. We’re committed to innovation that empowers, not replaces. At MNTN, AI is a tool for growth, enhancing efficiency while keeping a people-first approach. Our goal is to streamline workflows and drive new solutions—without compromising the human element that makes our company great. So if wanting to do more, own more, and make a bigger impact comes naturally to you, then you may be the person we're looking for to join us in our next stage of growth.The MNTN API Squad owns the APIs to serve both external partners and internal teams, acting as the core contract behind all MNTN UIs and integrations. The squad builds and operates scalable, reliable APIs—allowing customers to operationalize advertising directly through code. If you enjoy building platform APIs that enable scale, automation, and deep product integration, this role may be a great fit. What you’ll do Be part of a team that focuses on our next-generation API platform. Architect and evolve large-scale backend systems, foundational platform services, and API ecosystems that enable backend and frontend teams to move faster with consistency and reliability. Familiar with API-first design, concepts such as Atomic API design. Define and refine domain models, service boundaries, and system interactions using domain-driven design (DDD) principles. Participate in technical discussions across engineering teams, driving alignment on architecture, standards, documentation, and long-term platform strategy. Design and drive implementation of scalable, observable, and fault-tolerant services—including caching, messaging, data pipelines, and service orchestration. Expert in Observability-first development. Partner with backend and frontend teams to ensure APIs and platform capabilities strongly support user experience and frontend architecture patterns (including MFE). Conduct deep-dive technical investigations, performance tuning, and root-cause analysis for complex systems in production. Establish best practices for testing, release engineering, and operational excellence across the engineering organization. Champion platform security, reliability, scalability, and long-term maintainability in every stage of the development lifecycle. What success looks like Your code is observable, fault-tolerant, secure, well-documented, and production-ready by default. You consistently apply and enforce API standards (OpenAPI, versioning, governance). You proactively identify and resolve performance issues and production risks through deep technical investigation and root-cause analysis. You collaborate closely with backend and frontend engineers to ensure APIs support strong integration. You influence architectural decisions through clear communication and strong technical judgment, without needing formal authority. You demonstrate strong ownership by independently pushing work across the finish line. What you’ll bring 5+ years building and scaling backend systems, distributed architectures, and API-driven platforms, with a strong record of delivering reliable, adaptable services. Apply strict enforcement of best practices and ensure adherence to public API standards, such as OpenAPI. Deep expertise in API strategy and design (REST, GraphQL, event-driven), including versioning, governance, and lifecycle management across domains. Hands-on experience with modern backend languages (Node.js, TypeScript) and the ability to guide teams on best practices and technology choices. Strong proficiency with relational databases—especially PostgreSQL—covering schema design, indexing, performance tuning, and data modeling. Solid understanding of cloud-native architectures (GCP preferred), IaC tools, security principles, identity/auth, and production observability. Comfort with development environments, scripting, debugging, and performance tuning, with a focus on automation and improving developer workflows. Strong knowledge of CI/CD, automated testing, Git workflows, and release processes to ensure reliable, high-quality deployments. Experience collaborating with UI/UX and frontend teams, with awareness of how API and domain design shape client architecture (including MFEs). Excellent communication skills, able to translate complex architectural concepts into clear guidance for both technical and non-technical stakeholders. MNTN Perks 100% remote within the US Flexible vacation policy Annual vacation allowance for travel related expenses Three-day weekend every month of the year Competitive compensation 100% healthcare coverage 401k plan Flexible Spending Account (FSA) for dependent, medical, and dental care Access to coaching, therapy, and professional development About MNTN Our recruiters will always reach out using an email address ending with @mountain.com OR @mntn.com. If you’re contacted by someone without that address and they mention a Reference Code (which we never use), then&nbsp;that ain’t us folks.&nbsp;Tell those trolls to take a hike–you’re waiting to climb a MNTN. MNTN provides advertising software for brands to reach their audience across Connected TV, web, and mobile. MNTN Performance TV has redefined what it means to advertise on television, transforming Connected TV into a direct-response, performance marketing channel. Our web retargeting has been leveraged by thousands of top brands for over a decade, driving billions of dollars in revenue. Our solutions give advertisers total transparency and complete control over their campaigns all with the fastest go-live in the industry. As a result, thousands of top brands have partnered with MNTN, including Tarte, Decked, and National University. #LI-Remote

At MNTN, we put our people first, full stop. This allows our company culture to be defined by our team members and their shared values, like trust, ambition, quality, radical honesty, and compassionate leadership. It’s why we all really love working for the Hardest Working Software in Television™ (and also why we were named one of Ad Age’s Best Places To Work in 2025.) We pride ourselves on bringing unrivaled performance and simplicity to Connected TV advertising. Our self-serve technology makes running TV ads as easy as search and social, helping brands drive measurable conversions, revenue, site visits, and more. It’s what led MNTN to being named one of Fast Company's Most Innovative Companies in 2023. You can learn more about us and everything we do by visiting https://mountain.com/. We’re committed to innovation that empowers, not replaces. At MNTN, AI is a tool for growth, enhancing efficiency while keeping a people-first approach. Our goal is to streamline workflows and drive new solutions—without compromising the human element that makes our company great. So if wanting to do more, own more, and make a bigger impact comes naturally to you, then you may be the person we're looking for to join us in our next stage of growth.We're looking for a Senior Software Engineer to join our Billing Squad. The Billing Squad owns every user-facing UI—serving both customers and internal teams—as well as every backend touch‑point for billing and invoicing. We build microservices and micro‑frontends that keep revenues flowing and finance joyful. If designing resilient payment flows and partnering with Finance to ship features that literally keep the lights on excites you, read on. What you'll do Spend ~70 % of your time building and scaling backend services in Bun + TypeScript that power billing &amp; invoicing workflows. Craft the remaining ~30 % in the UI, building micro‑frontends with React and Webpack Module Federation. Design and evolve REST/tRPC APIs that fit a micro‑service, event‑driven architecture. Leverage modern job/queue systems (e.g. BullMQ, AWS SQS, Google Cloud Tasks or similar) to orchestrate long‑running and scheduled workloads. Use AI development tools (Cursor, GitHub Copilot, ChatGPT, etc.) every day to enhance productivity and code quality. Write clean, well‑tested, and observable code; automate everything via CI/CD. Collaborate with Finance, Product, and fellow engineers to ship reliable billing features and continuously improve platform resilience. Champion security and data‑protection best practices across services that handle payment data. What success looks like You will ramp quickly on our billing domain—understanding invoicing workflows, credit systems, and how services integrate across our platforms. You take ownership of revenue-impacting features (invoicing, payments, tax, credits) and deliver high-quality solutions with strong attention to detail. You contribute across the stack—building reliable backend services and APIs while delivering clean, intuitive UI in our billing micro-frontends. You proactively identify edge cases, partner closely with Finance to ensure accuracy, and help prevent production issues. You are hands-on in production support, debug effectively, and improve system reliability over time. You participate actively in refinement, ask thoughtful questions, and help increase clarity and velocity. You build strong cross-functional relationships and are a dependable, proactive contributor to the team. What you'll bring 5+ years of JavaScript/TypeScript experience, with a backend focus; strong skills in building RESTful APIs (or tRPC) in microservice architectures. Proficient with modern cloud platforms (GCP preferred), service-oriented architectures, and scalable system design. Hands-on with job/queue systems (e.g., BullMQ, SQS, Redis), CI/CD pipelines, Git workflows, testing frameworks, and observability tools. Strong React expertise, including micro-frontends and Module Federation; solid HTML/CSS knowledge with accessibility and cross-browser awareness. Experienced with relational databases (PostgreSQL preferred) and writing performant SQL. Regularly use AI coding tools (e.g., Cursor, Copilot, ChatGPT) to enhance productivity. Skilled in authentication/authorization across systems and translating business needs into technical solutions MNTN Perks 100% remote within the US Flexible vacation policy Annual vacation allowance for travel related expenses Three-day weekend every month of the year Competitive compensation 100% healthcare coverage 401k plan Flexible Spending Account (FSA) for dependent, medical, and dental care Access to coaching, therapy, and professional development About MNTN Our recruiters will always reach out using an email address ending with @mountain.com OR @mntn.com. If you’re contacted by someone without that address and they mention a Reference Code (which we never use), then&nbsp;that ain’t us folks.&nbsp;Tell those trolls to take a hike–you’re waiting to climb a MNTN. MNTN provides advertising software for brands to reach their audience across Connected TV, web, and mobile. MNTN Performance TV has redefined what it means to advertise on television, transforming Connected TV into a direct-response, performance marketing channel. Our web retargeting has been leveraged by thousands of top brands for over a decade, driving billions of dollars in revenue. Our solutions give advertisers total transparency and complete control over their campaigns all with the fastest go-live in the industry. As a result, thousands of top brands have partnered with MNTN, including Tarte, Decked, and National University. #LI-Remote

At MNTN, we put our people first, full stop. This allows our company culture to be defined by our team members and their shared values, like trust, ambition, quality, radical honesty, and compassionate leadership. It’s why we all really love working for the Hardest Working Software in Television™ (and also why we were named one of Ad Age’s Best Places To Work in 2025.) We pride ourselves on bringing unrivaled performance and simplicity to Connected TV advertising. Our self-serve technology makes running TV ads as easy as search and social, helping brands drive measurable conversions, revenue, site visits, and more. It’s what led MNTN to being named one of Fast Company's Most Innovative Companies in 2023. You can learn more about us and everything we do by visiting https://mountain.com/. We’re committed to innovation that empowers, not replaces. At MNTN, AI is a tool for growth, enhancing efficiency while keeping a people-first approach. Our goal is to streamline workflows and drive new solutions—without compromising the human element that makes our company great. So if wanting to do more, own more, and make a bigger impact comes naturally to you, then you may be the person we're looking for to join us in our next stage of growth.As a Software Engineer on the AI Efficiency team, you will bridge the gap between emerging AI capabilities and real-world business needs. You’ll design and build AI-powered tools and agents that automate workflows, support business teams, and unlock new opportunities for efficiency across the organization. Your work will directly influence how AI drives impact throughout MNTN. What you’ll do Design and build internal AI-powered tools and integrations — including generative AI applications and autonomous AI agents — that help business teams work smarter and faster. Architect, develop, and maintain AI agents that automate complex multi-step workflows, make decisions, and interact with internal systems on behalf of users. Evaluate, prototype, and recommend generative AI solutions (LLM APIs, agent frameworks, code generation tools) tailored to specific business problems. Act as an AI evangelist within engineering — running workshops, writing internal guides, and mentoring teammates on generative AI development patterns and agent design. Define and maintain best practices for prompt engineering, agent orchestration, model selection, responsible AI usage, and cost management. Partner with product and business stakeholders to identify high-impact opportunities for generative AI and agent-driven automation. Stay on the cutting edge of the generative AI and agentic AI landscape and translate new developments into actionable opportunities for the company. What success looks like Delivery of AI tools and agents that measurably improve efficiency across business teams. Successful deployment of generative AI solutions with high adoption and usability within internal teams. Clear documentation, guides, and workshops that enable other engineers and business stakeholders to leverage AI tools effectively. Adoption of best practices for responsible AI usage, cost management, and agent orchestration across the organization. Influence on business outcomes through AI-driven automation and insights. What you’ll bring 3+ years of software engineering experience, with at least 1 year focused on generative AI or LLM application development. Experience with Model Context Protocol (MCP) — building MCP servers, integrating MCP clients, or connecting AI agents to external tools and data sources via MCP. Hands-on experience building with LLM APIs (e.g., OpenAI, Anthropic, Gemini, open-source models), vector databases, and orchestration/agent frameworks (e.g., LangChain, LangGraph, CrewAI, LlamaIndex, ADK). Experience designing or building AI agents — including tool-using agents, multi-agent systems, or agentic workflows. Cloud-native development experience — comfortable deploying and operating services in AWS, GCP, or Azure using containers, serverless functions, or managed AI/ML services. Strong communication skills — able to explain complex generative AI concepts to non-technical stakeholders and get engineers excited about new tools. A product-minded approach: you think about user problems first, not just the technology. Self-directed and comfortable operating with ambiguity in a fast-moving space. MNTN Perks 100% remote within the US Flexible vacation policy Annual vacation allowance for travel related expenses Three-day weekend every month of the year Competitive compensation 100% healthcare coverage 401k plan Flexible Spending Account (FSA) for dependent, medical, and dental care Access to coaching, therapy, and professional development About MNTN Our recruiters will always reach out using an email address ending with @mountain.com OR @mntn.com. If you’re contacted by someone without that address and they mention a Reference Code (which we never use), then&nbsp;that ain’t us folks.&nbsp;Tell those trolls to take a hike–you’re waiting to climb a MNTN. MNTN provides advertising software for brands to reach their audience across Connected TV, web, and mobile. MNTN Performance TV has redefined what it means to advertise on television, transforming Connected TV into a direct-response, performance marketing channel. Our web retargeting has been leveraged by thousands of top brands for over a decade, driving billions of dollars in revenue. Our solutions give advertisers total transparency and complete control over their campaigns all with the fastest go-live in the industry. As a result, thousands of top brands have partnered with MNTN, including Tarte, Decked, and National University. #LI-Remote

Software Engineer, AI Solutions

At MNTN, we put our people first, full stop. This allows our company culture to be defined by our team members and their shared values, like trust, ambition, quality, radical honesty, and compassionate leadership. It’s why we all really love working for the Hardest Working Software in Television™ (and also why we were named one of Ad Age’s Best Places To Work in 2025.) We pride ourselves on bringing unrivaled performance and simplicity to Connected TV advertising. Our self-serve technology makes running TV ads as easy as search and social, helping brands drive measurable conversions, revenue, site visits, and more. It’s what led MNTN to being named one of Fast Company's Most Innovative Companies in 2023. You can learn more about us and everything we do by visiting https://mountain.com/. We’re committed to innovation that empowers, not replaces. At MNTN, AI is a tool for growth, enhancing efficiency while keeping a people-first approach. Our goal is to streamline workflows and drive new solutions—without compromising the human element that makes our company great. So if wanting to do more, own more, and make a bigger impact comes naturally to you, then you may be the person we're looking for to join us in our next stage of growth.At MNTN, we're looking for a Senior Software Engineer for our Attribution squad, the team behind Verified Visits™, our proprietary attribution system that helps brands finally answer the age-old marketing question: "Did this actually work?" Spoiler: it did, and you'll be a part of the team making it happen. Our microservices handle hundreds of millions of requests per day, powering a real-time behavioral marketing platform that drives performance in cross-device advertising. We heavily utilize open source technology alongside in-house solutions to meet the low-latency demands of rapid-response advertising. What You'll Do Design and build a robust attribution platform that reaches the right audience, anywhere, anytime Build high-volume Kotlin services that are reliable at scale on GCP/GKE Design and own data pipelines using SQLMesh, Airflow, and BigQuery to power attribution analytics and downstream products Write and optimize SQL against large datasets for both production services and analytical workloads Collaborate with and explain complex technical issues to product teams and partner engineering squads Mentor engineers across the team and raise the bar on design, testing, and operational quality Optimize and enhance existing services and pipelines What Success Looks Like Within 90 days, you've ramped on the Attribution stack, shipped meaningful changes to production, and are comfortable navigating our service topology and data model You own new data pipelines end-to-end from requirements through SQLMesh/Airflow design, deployment, and on-call. You partner with data analysts to make attribution data trustworthy and easy to consume You're a trusted technical voice in cross-squad discussions, helping shape attribution-adjacent work and mentoring engineers through design and code review What You'll Bring 5+ years of backend development experience, ideally in Kotlin (Java or Scala also welcome) 3+ years writing production SQL: query optimization, window functions, and schema design against large datasets Experience designing and operating data pipelines with tools like SQLMesh, Airflow, dbt, or similar Experience with cloud data warehouses (BigQuery preferred; Snowflake, Redshift, etc. also relevant) Experience with microservice architectures running on Kubernetes (GKE preferred) Experience with event streaming (Kafka or similar) Python experience for scripting and pipeline work Strong knowledge of modern design patterns and distributed systems fundamentals Comfortable writing effective unit and integration tests with frameworks Proficient with Git and a Linux/UNIX environment Knowledge of NoSQL databases such as Cassandra (preferred) Experience mentoring engineers and influencing technical direction across a team MNTN Perks 100% remote within the US Flexible vacation policy Annual vacation allowance for travel related expenses Three-day weekend every month of the year Competitive compensation 100% healthcare coverage 401k plan Flexible Spending Account (FSA) for dependent, medical, and dental care Access to coaching, therapy, and professional development About MNTN Our recruiters will always reach out using an email address ending with @mountain.com OR @mntn.com. If you’re contacted by someone without that address and they mention a Reference Code (which we never use), then&nbsp;that ain’t us folks.&nbsp;Tell those trolls to take a hike–you’re waiting to climb a MNTN. MNTN provides advertising software for brands to reach their audience across Connected TV, web, and mobile. MNTN Performance TV has redefined what it means to advertise on television, transforming Connected TV into a direct-response, performance marketing channel. Our web retargeting has been leveraged by thousands of top brands for over a decade, driving billions of dollars in revenue. Our solutions give advertisers total transparency and complete control over their campaigns all with the fastest go-live in the industry. As a result, thousands of top brands have partnered with MNTN, including Tarte, Decked, and National University. #LI-Remote

At MNTN, we put our people first, full stop. This allows our company culture to be defined by our team members and their shared values, like trust, ambition, quality, radical honesty, and compassionate leadership. It’s why we all really love working for the Hardest Working Software in Television™ (and also why we were named one of Ad Age’s Best Places To Work in 2025.) We pride ourselves on bringing unrivaled performance and simplicity to Connected TV advertising. Our self-serve technology makes running TV ads as easy as search and social, helping brands drive measurable conversions, revenue, site visits, and more. It’s what led MNTN to being named one of Fast Company's Most Innovative Companies in 2023. You can learn more about us and everything we do by visiting https://mountain.com/. We’re committed to innovation that empowers, not replaces. At MNTN, AI is a tool for growth, enhancing efficiency while keeping a people-first approach. Our goal is to streamline workflows and drive new solutions—without compromising the human element that makes our company great. So if wanting to do more, own more, and make a bigger impact comes naturally to you, then you may be the person we're looking for to join us in our next stage of growth.We're looking for a Senior Backend Engineer to join our Integrations team! Our team powers the systems that move massive amounts of data in and out of the MNTN platform. We are a small but fierce tiger team that moves fast, but has done things right since day one, and we aim to keep it that way. If you enjoy learning and growing your skillset in sophisticated distributed systems, always think before you code, love using the latest and greatest tools and instrumentation, and cringe at the word “tech debt”, then please apply! Our core stack: Golang, Postgres, Kubernetes, GCP (PubSub, Bigtable, BigQuery, and more). What you’ll do: Work closely with the rest of the team to evolve the Integrations platform to handle trillions of tuples across hundreds of different integrations. Own the design, implementation, testing, monitoring, and optimization of integration connectors. Work closely with both technical and non-technical cross-team stakeholders to get our data streams where they’ll have the biggest impact on the entire business. Find creative, scalable, and durable solutions to tough data synchronization challenges spanning across our systems and our partners'. Join our on-call and other rotations that share the load equally among the team. It takes a village.. Bring energy and creativity to our use of AI, our knowledge shares, retros, and other regular team growth activities. About you: 5+ years of experience as a full-time backend engineer working on a SaaS product with a large data component. I.e. not just building APIs for UIs. Experience with distributed microservice architectures: reliable service design for autoscaling (containers appear and disappear all the time), RESTful service-to-service communication (even if its an RPC protocol). Experience with at least one compiled language. Golang is preferred, but Rust, Kotlin, Java, C++ are welcome. Experience with at least one messaging system (Kafka, SQS, PubSub, RabbitMQ, etc) at scale (message volumes of 1K/s+). A foundation in CS fundamentals: data types, algorithms, CPU/memory management, networking, how the internet works. Experience with observability systems for microservice architectures: structured logging, tracing, custom metrics. Are a design-driven professional. You form a plan of attack and articulate it on paper to make sure its sound. You don’t document for-its-own-sake, but you don’t just start shoveling code and pray for the best either. Are comfortable with Postgres-flavor databases. You’re not necessarily a SQL expert, but you know about relational database concerns (indices, foreign/unique constraints, why you should never use stored procedures). Are more comfortable on the command-line than in UIs. Can communicate clearly and concisely with both technical and non-technical peers. An idealistic but practical mindset: aim for the stars, but focus on what will make the biggest difference right now. MNTN Perks 100% remote within the US Flexible vacation policy Annual vacation allowance for travel related expenses Three-day weekend every month of the year Competitive compensation 100% healthcare coverage 401k plan Flexible Spending Account (FSA) for dependent, medical, and dental care Access to coaching, therapy, and professional development About MNTN Our recruiters will always reach out using an email address ending with @mountain.com OR @mntn.com. If you’re contacted by someone without that address and they mention a Reference Code (which we never use), then&nbsp;that ain’t us folks.&nbsp;Tell those trolls to take a hike–you’re waiting to climb a MNTN. MNTN provides advertising software for brands to reach their audience across Connected TV, web, and mobile. MNTN Performance TV has redefined what it means to advertise on television, transforming Connected TV into a direct-response, performance marketing channel. Our web retargeting has been leveraged by thousands of top brands for over a decade, driving billions of dollars in revenue. Our solutions give advertisers total transparency and complete control over their campaigns all with the fastest go-live in the industry. As a result, thousands of top brands have partnered with MNTN, including Tarte, Decked, and National University. #LI-Remote

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