Unknown Company

Senior Software Engineer

new york, ny • Posted 6 days ago
Onsite Full Time Software Architecture & Engineering

We are hiring a Staff Backend Software Engineer to own the architecture and scaling of our core platform. This is a hands-on role: you will design and ship the systems that everything else is built on, set the technical bar for the backend team, and make the build-vs-buy and architecture calls that a company only gets to make once. You will report directly to (VP Engineering / CTO) and work with founders on technical direction.

What You Will Do

  • Design, build, and operate distributed backend systems that scale with the business: APIs, data pipelines, and core services with real reliability and latency requirements.
  • Own major architectural decisions end to end: technology choices, service boundaries, data modeling, and migration paths.
  • Set the engineering standard: raise code quality, drive design reviews, and mentor senior and mid-level engineers without becoming a full-time manager.
  • Work directly with product and founders to turn ambiguous business problems into shipped systems, fast.
  • Carry production ownership: instrumentation, on-call, incident response, and postmortems that actually change the system.

What We Look For

  • 8+ years building backend systems in production, with clear evidence of increasing scope and technical ownership.
  • A track record at companies known for a high engineering bar: top-tier technology companies, high-growth startups, or equivalently demanding environments where you shipped systems at scale.
  • Deep expertise in at least one modern backend language (Go, Java, Python, Rust, or similar) and strong distributed-systems fundamentals: consistency, queuing, caching, observability.
  • Experience owning architecture for systems serving significant scale (high throughput, large data volumes, or strict latency budgets) and living with the consequences of your decisions.
  • Strong computer science foundations. Many of our engineers come from top CS programs; what matters is that you reason from first principles, not that you memorized a syllabus.
  • Bias for shipping. You have operated in environments where speed mattered and quality was not negotiable, and you know how to hold both.

Nice to Have

  • Experience taking a system from single-service to distributed, or from thousands to millions of users.
  • Exposure to ML/AI infrastructure, data-intensive platforms, or event-driven architectures.
  • Prior startup experience at Series A-C stage, or founding-engineer scope at a larger company.
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