Jobs · Engineering · California

Senior Full Stack Software Engineer

Cynch AI · California, United States · 1 mo ago
HybridEngineering$190k–$240k/yrFull-time

What You'll Do

  • Work with founders, product, AI, operations and domain experts as you fully own substantial product and platform work from problem definition through production rollout.
  • Build backend systems that can handle real production complexity: clear APIs, well-modeled data, reliable execution, useful observability, and maintainable code.
  • Turn messy operational workflows into clean software abstractions, internal tools, automations, and customer-facing features.
  • Continuously help the team discover where AI meaningfully improves software quality and velocity, and where it doesn't.
  • Improve the engineering system itself: better tools, better patterns, better deployment practices, better observability, fewer repeated mistakes, less accumulated technical debt.
  • Mentor other engineers by raising the quality of design discussions, implementation choices, reviews, and production ownership.

Who We're Looking For

  • 10+ years of professional software engineering experience with deep backend expertise.
  • Your default process integrates AI tools into your daily engineering workflows to continuously improve velocity and quality.
  • A track record of building and operating real production systems.
  • Excellent instincts around APIs, data modeling, databases, queues, reliability, performance, and operational simplicity.
  • Frontend ability to build and polish product experiences when needed.
  • Experience working in an early-stage environment where requirements are incomplete, priorities shift, and ownership is broad.
  • Strong product judgment: shipping code solving the problem.
  • A pragmatic approach to architecture: you know when to design carefully, when to ship the simple version, and when to delete complexity.
  • You can lead projects, take feedback, engage in thoughtful discussion, and get the work done.
  • Experience building AI-enabled products, internal platforms, workflow systems, or developer tools.
  • Experience with TypeScript, React, Python, Julia, Java, Go, or similar technologies.
  • Experience with Postgres, AWS, data pipelines, document processing, integrations, or compliance-sensitive systems.

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