Senior Backend Engineer

About the company Our client is a fast-growing technology company. The role Raydar is recruiting for this role on behalf of our client. Own and evolve server-side services that operate under heavy, continuous load, while bringing AI-assisted approaches into production engineering. You will take responsibility for key components from design through operation and collaborate closely with mobile, data and machine learning colleagues. What you'll do - Strengthen backend services that process high-volume streaming data, live media and push notifications. - Bring AI into backend workflows by shaping services that automated agents can use safely, building validation pipelines and recommending where agents can act on their own. - Take end-to-end ownership of core components, from data intake pipelines to external APIs and internal operator tooling. - Share an on-call rotation to keep a round-the-clock platform dependable. - Partner each day with mobile, machine learning and data colleagues to deliver measurable gains in latency, correctness and cost. Requirements What we're looking for - 6 to 10 years of backend engineering experience. - Personal ownership of event-driven or streaming systems used by a very large consumer base, with a clear understanding of how those services behaved when they failed. - Experience designing or restructuring systems so that verification and evaluation are built in, including LLMs in live production paths. - Daily use of AI coding assistants and a record of replacing parts of manual workflows with AI agents. - Strong distributed-systems fundamentals, including queues, relational and analytical data stores, observability and container orchestration. - Comfort with Go or Python, though sound judgment about scaling matters more than any single language. - Startup or founder experience, ideally at a company that reached meaningful scale. - Genuine engagement with the AI community, such as meetups, following model releases or side projects. Bonus points - Experience with live video, streaming or broadcast infrastructure. - A background that includes leading engineers and returning to an individual contributor role, or moving across disciplines. Benefits Compensation and benefits - Base salary: USD 200,000 to 260,000 per year - Equity Location and work model - New York, NY, United States - On-site, 5 days per week in office - Full-time