Senior Full Stack Engineer
Indexed description
Senior Software Engineer (Full Stack)
Location: NYC (Hybrid)
We’re hiring a Senior Software Engineer to join a hypergrowth MIT spinout redefining commerce infrastructure.
This company operates the largest data-driven, three-sided marketplace. In 2025, the company surpassed $100M+ in revenue, raised $140M+ Series B, reached a $1.5B valuation, and now drives $1B+ in annual platform sales — while maintaining profitability and 200% YoY growth.
This is a rare opportunity to join a lean, high-caliber engineering team building systems that operate at massive scale and directly impact revenue.
What You’ll Do:
As a Senior Software Engineer, you’ll work directly with the CEO and senior/staff-level engineers on true 0→1 product launches and core backend infrastructure.
- Own projects end-to-end — from architecture through production deployment
- Build and scale APIs using Node.js
- Develop high-performance frontends with React and Redux
- Design data pipelines and internal tooling
- Deploy production systems using containers and modern cloud infrastructure
- Ship products used by a real, revenue-generating customer base
Bonus Points:
- Experience in fast-paced startups or product-driven environments
- Worked on consumer-facing applications
Requirements:
- Bachelor’s degree in Computer Science, Engineering, or related field
- 5+ years of professional software engineering experience
- Strong proficiency in JavaScript (Node.js + React)
- Experience building and shipping production systems at scale
- Ability to operate autonomously in fast-paced, high-growth environments
Must be based in the U.S.
U.S. Citizen or Green Card Holder (no visa sponsorship available)
Create a free Caio profile to unlock the full index and keep your job-search signal for future recommendations.
Unlock free search