Senior Full Stack Engineer

Senior Full Stack Engineer - FinTech Start-Up

New York City Hybrid (2 days onsite / 3 days remote)

I'm looking for a Senior Full Stack Engineer to help design and scale the next generation of integration and data platforms used by leading financial institutions and fintechs. This is a senior, hands-on role where you'll take ownership of complex technical challenges, mentor others, and build features that have real impact in the market.

What you'll be working on

Building and scaling systems that connect to external data sources and APIs

Collaborating with product managers, designers, and engineers to shape the technical roadmap

Architecting, developing, testing, and deploying customer-facing features

Working with a modern stack: TypeScript, React, Python (Django), Node.js, PostgreSQL, Elasticsearch, AWS

Delivering clean, reliable, and well-tested code

Supporting and mentoring engineers in a collaborative, high-growth team

What you need

10+ years' experience building production-ready software

Strong background with external APIs and large-scale data integrations

Experience across both front-end and back-end projects

Proficiency in TypeScript/React, Python (Django), Node.js, PostgreSQL

Someone adaptable, collaborative, and comfortable leading technical discussions

Bonus points for:

Experience with SDKs or developer productivity tools

Background in fintech or financial services

If you want to join a lean, high-impact engineering team where your work directly shapes the future of financial technology, we'd love to hear from you.