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Kaizen LabsKaizen LabsNew York, NY

Senior Software Engineer, Product

Senior full-stack engineer architects and ships AI-powered features for government services platform, sets technical direction, mentors juniors, and engages with agency stakeholders. Requires 5+ years experience with React/Next.js, Node.js/TypeScript/Postgres, and AI coding tools.

180k – 250k/yr
Hybrid5+ YOEFullstack Engineering

About the role

What You'll Do

  • Architect and ship full-stack features end-to-end — from scoping and technical design through build, iteration, and production
  • Lead the development of AI-powered product surfaces: intelligent intake flows, real-time constituent assistants, automated case routing, agency operator dashboards
  • Set technical direction and raise the bar on code quality — your decisions become the patterns the rest of the team builds on
  • Engage directly with federal agency stakeholders to translate messy real-world requirements into clean, shippable product
  • Own platform reliability and performance at government scale — real SLAs, real users, no abstraction layer between you and accountability
  • Mentor earlier-career engineers through code review, pairing, and direct technical feedback

What You'll Bring

  • 5+ years of professional engineering experience, with a track record of owning complex features and systems — not just executing on them
  • Deep fluency in React / Next.js and Node.js / TypeScript / Postgres — fast, not just functional
  • AI coding tools (Cursor, Copilot, Claude) are already baked into how you work — you've shipped with them, and you move measurably faster because of it
  • Something real you've built — a product, an open source project, a system you designed and stood behind
  • Proven ability to operate in ambiguity: you define the problem as often as you solve it, and you don't stall waiting for the answer to come to you
  • A genuine orientation toward the end user — the person on the other side of the screen isn't an abstraction to you

Strong Candidates May Also...

  • Have touched federal, state, or local government tech — or have built in other regulated, high-stakes environments where the constraints were real
  • Have cloud deployment depth: AWS, Vercel, GitHub Actions, ECS/Fargate
  • Have experience with design systems and component libraries — and a clear opinion on when a component is right vs. just functional
  • Have led technical work in an early-stage environment where the job was figuring it out, not following a playbook

Skills

ReactNext.jsNode.jsTypeScriptPostgresAWSVercelGitHub ActionsCursorCopilot
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