Senior Full Stack Engineer

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)