Senior Software Engineer

About The Company

Our client is a seed-stage, venture-backed AI startup bringing modern software to a large, traditionally underserved industry — building a fully managed platform that ingests, organizes, and analyzes complex documents and data so its customers can make faster, better-informed decisions. They run a lean, AI-native engineering team where individual engineers carry real ownership over both product and architecture. Founded 2020

• :20 people

— New York, NY

• Hybrid


• Full-time


• $220K–$270K + equity

About The Company

Our client is a seed-stage, venture-backed AI startup bringing modern software to a large, traditionally underserved industry — building a fully managed platform that ingests, organizes, and analyzes complex documents and data so its customers can make faster, better-informed decisions. They run a lean, AI-native engineering team where individual engineers carry real ownership over both product and architecture. Founded 2020

• :20 people


• Industry: AI / Enterprise Software.

The Role

We're representing our client in a search for a senior backend engineer to join as a hands-on IC in an early-stage environment — shipping production services, driving key architectural decisions, and mentoring junior engineers, with a clear runway to a lead role in the near term.

What You'll Be Doing

• Design, build, and operate production-grade backend services and data pipelines on a Python + AWS serverless stack


• Make architectural and system-design decisions, using modern AI coding tools to move quickly


• Own features end-to-end across a primarily backend codebase, with occasional front-end work in React


• Work directly with customers to turn ambiguous requirements into shipped software


• Mentor junior engineers through code review, design discussions, and pairing

Tech stack:

Python, AWS (Lambda, Step Functions, serverless), REST APIs, microservices, event-driven architecture, React

Requirements

• 5+ years in backend software engineering


• Experience as a founding engineer or early hire at an early-stage B2B SaaS startup, with genuine end-to-end ownership


• A track record of owning production backend systems, not just contributing to them


• Advanced, production-level Python skills


• Strong hands-on AWS experience, particularly serverless (Lambda, Step Functions)


• A product mindset and comfort speaking directly with customers to clarify what needs building


• Based in or near New York City and able to work on-site three days a week (Midtown)


• A BS in Computer Science or a related STEM field, or an equivalently strong startup engineering track record in its place

Nice to Haves

• Prior tech-lead or mentorship experience guiding junior engineers


• Familiarity with AI coding tools and agentic development workflows

Why Join

• Build the core platform for a large industry that modern software has barely reached


• Small, well-backed, AI-native team where engineers own product and architecture outright


• Senior IC role with a clear near-term path to a lead position


• Competitive base plus meaningful early-stage equity

Details

• Location: New York, NY


• Work policy: Hybrid — 3 days/week in-office (Midtown)


• Compensation: $220K–$270K + equity


• Visa sponsorship: Not available for this role


• Employment type: Full-time