Senior Software Engineer

W3 Global Sourcing
Syracuse, NY

Senior Software Engineer (Full-Stack, Backend-Leaning)

NYC (Hybrid) | Strong Base Salary + Competitive Equity
Seed-stage |Real-world systems

Our client is an early-stage, venture-backed startup rebuilding critical operational infrastructure in a large, overlooked industry. The problems are messy, workflow-heavy, and high-trust. The software matters.

The Stack

  • React + TypeScript
  • Node.js
  • Postgres
  • AWS (Lambda, Fargate, S3, Cognito)
  • Terraform
  • GitHub Actions
  • Datadog

We ship fast, but we care about system design.

The Role

Youll:

  • Build and own end-to-end features
  • Design APIs and data models that wont collapse in 18 months
  • Make architectural decisions alongside the founders
  • Integrate AI into real production workflows (not just demos)
  • Improve reliability and observability
  • Help define engineering culture early

Youll have meaningful input into:

  • How we structure services
  • How we deploy
  • How we use AI internally and in-product
  • What good looks like for engineering quality

What Were Looking For

  • 5–8 years experience shipping production software
  • Strong backend fundamentals
  • Experience owning systems, not just components
  • Good product instincts
  • Comfortable with ambiguity

Bonus:

  • Experience in regulated / operationally complex environments
  • Experience integrating LLMs into real workflows
  • Early-stage startup experience

What This Is

  • Small team (single-digit engineers)
  • High ownership
  • Direct founder collaboration
  • Product with real-world constraints
  • Infrastructure that must work

What This Isnt

  • A 50-engineer org with heavy process
  • Feature factory work
  • Pure ML research

Hybrid NYC (2–3 days in person)

If you like building durable systems in complex environments and want real ownership early — email us with a short intro and links to things youve built.

If you need a confidential discussion or further information DM me here

Posted 2026-02-28

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