Unknown Company

Senior Full Stack Engineer (Team Lead)

new york, ny • Posted 6 days ago
Onsite Full Time IT & Technology

The Role

You’ll be an engineer who happens to be exceptionally good at working with AI. Not an ML researcher, not a prompt engineer — a builder. You’ll write production code across the full stack while leading a small team of engineers doing the same.

You’ll use AI coding tools as force multipliers to ship features, debug issues, and refactor at a pace that wouldn’t otherwise be possible. You’ll also shape how the team works with AI: workflows, guardrails, and standards that make AI‑assisted development reliable and repeatable, not lottery‑ticket development.

This is a player‑coach role. Most of your time is building. But you’re also accountable for the output, growth, and direction of the engineers around you.

What You’ll Do

  • Ship full vertical slices across a TypeScript monorepo — schema migration, backend service, frontend component — in a single PR
  • Drive the rebuild through its remaining phases, including the web dashboard, admin surface, mobile app, and a public API
  • Build for a multi‑region, data‑residency‑sensitive product from day one
  • Integrate with the messy real world: property management systems, smart locks, payments, and a high‑frequency telemetry pipeline
  • Lead and mentor through code review, architectural guidance, and pairing — and set the quality bar
  • Establish AI‑assisted development practices that scale with the team

What We’re Looking For

  • 5+ years writing production TypeScript / JavaScript
  • 2+ years leading engineers — tech lead, EM, or senior engineer who genuinely owned team output
  • True full‑stack range: you can write a schema migration, a backend service, and a typed frontend component in the same afternoon
  • Demonstrated fluency with AI coding tools — you can articulate where they accelerate you and where they quietly mislead you
  • Strong relational database instincts: schema design, migrations, indexes, query plans
  • Good architectural judgment — knowing when to build, buy, refactor, or ship as‑is
  • Clear written communication. We’re async‑first; decisions happen in writing

Nice to Have

  • Modern full‑stack TypeScript framework experience (Nest‑style backends, App‑Router‑style frontends)
  • Offline‑first mobile architectures
  • Schema‑first stacks with end‑to‑end type safety
  • High‑frequency event pipelines or IoT telemetry
  • Multi‑region or data‑residency‑sensitive systems
  • Vertical SaaS with deep integration surface area

Our Stack

TypeScript end to end, in a strict monorepo.

A modular backend, a modern App‑Router web app, an offline‑first mobile app, and an edge layer for public‑facing surfaces. Managed Postgres with row‑level security and an ORM that owns the schema. Background jobs on a managed queue. End‑to‑end type safety from database row to frontend form, validated by a single shared schema layer.

We deliberately favor managed platforms over primitives so the team spends its time on product, not infra.

How We Work

  • Small team, high ownership. You own features end to end, including their failure modes
  • AI‑first development, structurally. The codebase is deliberately built for AI comprehension: narrow module boundaries, strict types, schema‑first data flow. AI tooling is part of the dev loop, not a side project
  • Types over tests, but tests where it counts. End‑to‑end type safety catches most bugs at compile time. When we test, it’s integration tests against real infrastructure — no mocked databases
  • Real engineering hygiene. No any, no silenced warnings, no logic in controllers, no auto‑save forms. The rules exist because they keep the codebase legible to humans and agents
  • Async‑first. Decisions happen in writing so they survive past the meeting

Why Now

You’d be joining mid‑rebuild — the most interesting moment in the lifecycle. The clean‑room architecture is being laid down right now. You won’t inherit a legacy system; you’ll build the one that replaces it, and you’ll define the patterns every future engineer at the company inherits.

We are an equal‑opportunity employer.

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