Staff Backend Developer, Unity Ads / Développeur Backend Principal, Unity Ads

The opportunity

Unity is looking for a Staff Backend Developer to join our Unity Ads team, where we build the real‑time systems that power Unity’s global advertising platform. This is a high‑scale, low‑latency environment — processing billions of requests daily to deliver fast, relevant ads to players around the world. Our backend infrastructure is designed for reliability and scalability, ensuring seamless ad delivery and optimal performance even under heavy traffic.

As part of the team, you will work on distributed systems that handle real‑time ad requests, impression tracking, and user data analytics with strict requirements for uptime and security. You'll play a critical role in optimizing performance, maintaining service availability, and supporting the development of new monetization features for game developers worldwide. Security, data privacy, and a positive user experience are central to everything we build.

You’ll help modernize the legacy tec...