Nexxen

Senior Backend Engineer - Adtech / SSP

Nexxen
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2 months ago
Bellevue, WA, USASenior
H1B sponsor

Base Salary

$180k - $200k/yr

Responsibilities

  • Own complex software initiatives through design, implementation, integration, rollout, and operation.
  • Build high-throughput, low-latency SSP services and resolve performance bottlenecks in systems processing billions of transactions per day.
  • Integrate with DSPs, SSPs, third-party data providers, OpenRTB, and VAST.
  • Use Redis, Kafka, and Aerospike for caching, in-memory storage, and distributed data processing.
  • Apply observability, incident response, capacity planning, shared on-call support, monitoring, and automation practices.
  • Drive automated acceptance and load testing coverage.
  • Provide code reviews and mentorship and help shape technical processes, tooling, architecture, and roadmap decisions.
  • Partner with product, operations, and engineering teams on platform initiatives.

Requirements

  • 5+ years of expert-level JavaScript/Node.js backend experience at scale.
  • Strong grounding in distributed systems, including scaling, fault tolerance, caching, and load balancing.
  • Hands-on experience with Aerospike, Redis, Kafka, and Kinesis.
  • Strong SQL/RDBMS, Linux, networking, and Git skills.
  • Solid data structures, algorithms, and systems design fundamentals.
  • Experience with code review and mentorship.
  • Experience with automated acceptance and load testing.
  • Strong communication and teamwork skills.
  • AdTech industry experience is strongly preferred.
  • A BS or MS in Computer Science, Engineering, or a related field is preferred.

Benefits

  • Hybrid schedule based in Bellevue, Washington, with three days per week in the office and the remainder remote.
  • Medical, dental, vision, and disability insurance.
  • 401(k) and employee assistance program.
  • Parental leave, unlimited vacation, and company-paid holidays.
Nexxen

About Nexxen

501-1,000 employees

Nexxen builds programmatic advertising technology—a DSP, SSP, and data platform—used by brands, agencies, and publishers to plan, buy, and monetize TV/CTV and digital video. The public company earns media-buying and platform fees and operates across North America, Europe, and APAC. Headquartered in New York, it is listed in London and focuses on data-driven campaigns across converged media.

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