Senior Backend Engineer - Adtech / SSP

What You'll Do:

Nexxen's SSP Software Development team is building and running a high-throughput SSP that processes hundreds of billions of real-time ad requests a day. You'll own complex, ambiguous problems end-to-end, apply an AI-first mindset to solve hard AdTech problems, and raise the bar for the team through code review and mentorship — with performance, scalability, and operational excellence guiding every project.

This role will be based in the Bellevue, WA office. Our team follows a hybrid schedule working in-office three days a week and remotely for the rest. This is an exempt position.

Each day can be different here at Nexxen, but some of the things you can expect to be doing daily are:

• Own complex initiatives end-to-end: design, implementation, integration, rollout, and operation
• Apply an AI-first mindset to software development and data exploration
• Integrate with DSPs, SSPs, third-party data providers, and standards such as OpenRTB and
VAST
• Build high-throughput, low-latency services with efficient caching and in-memory stores (Redis, Kafka, Aerospike)
• Apply an SRE mindset: observability, incident response, capacity planning, and a shared on-call pager rotation
• Raise the technical bar through code r