About the Role
We are looking for a Senior Fullstack Engineer to build and own the media format services behind a programmatic advertising platform that serves billions of impressions a year. You will work across the full path of a creative: from video and image ingestion and processing, through APIs, to delivery and rendering inside web players, news sites and e-commerce stores.
Responsibilities
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Design, build and operate media services end to end: ingestion, processing, APIs and production delivery.
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Build low-latency, high-throughput backend services that turn large, noisy, real-world data into value.
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Work hands-on with video and image pipelines, web players and content embedded into third-party interfaces.
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Own production quality: security, monitoring, observability and continuous improvement.
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Collaborate with engineers, product owners and data scientists, and raise the bar for how backend systems are built and run.
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Iterate fast: changes are safely tested against real traffic, and an idea often reaches validation in days rather than weeks.
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Contribute to the next generation of ad products and formats.
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Use modern AI development tooling as a normal part of your daily workflow.
Requirements
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4+ years of professional software engineering experience, including running production systems.
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Strong Node.js/TypeScript (or a comparable language) with a backend focus.
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Strong React experience. You will build and maintain the customer-facing interfaces around these services, so this is a fullstack role rather than a backend-only one.
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Solid, hands-on AWS experience: ECS/EKS, RDS, SQS, CDK, MediaConvert, CloudFront. You should be able to name the services you have used, explain what you built with them, and be comfortable helping out on the infrastructure side at scale.
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Practical experience with media: video and image processing, media delivery, and embedding web content or players into different interfaces (apps, news websites, e-commerce).
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Experience taking a product from idea to production ownership, including monitoring, iteration and long-term maintenance.
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Strong computer science fundamentals and software engineering best practices.
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Experience building systems that handle structured but skewed and noisy data.
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Experience with AI-enabled development as part of your everyday workflow.
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Based in Europe and comfortable working in an English-speaking, distributed team.
Nice to have
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Experience in ad tech or programmatic advertising (real-time bidding experience is not required).
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Real-time or low-latency backend systems.
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Media delivery and format optimization at scale.
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Rust.
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Python.
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Background in a publisher, media or ad-serving company.
What we offer
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Multisport card.
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Private healthcare.
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Stock options, so you benefit from the success you help build.
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Ownership of media formats end to end, from concept to production.
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Fast feedback loops: services and changes can be tested against real traffic with a low barrier to experimentation.
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Direct impact on advertiser outcomes and company revenue.
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Modern AI tooling as part of your daily engineering workflow.
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