Senior Software Engineer

Senior Software Engineer

New York, NY or San Francisco, CA · On-site (5 days/week) · Full-time
Compensation: $230K–$280K + equity

About the Company

Our client is an early-stage, still-in-stealth AI data-infrastructure company building the data-production pipelines that power the world’s leading AI labs, with particular depth in high-value domains like finance. The founding team comes out of a major AI-data company and a frontier AI lab, and the company already partners with top labs on some of the most important capability areas in AI. This is a rare chance to join a small, high-caliber team as an early builder.

Recently founded · ~30 people · Industry: AI, Data, Finance

The Role

As a Senior Software Engineer, you’ll join as one of a small cohort of early builders, owning the hardest and most ambiguous features end-to-end, making the architectural calls that keep the team shipping fast, and acting as a force multiplier for a lean engineering team.

What you’ll be doing

• Own end-to-end development of the platform that automates data-production pipelines for frontier AI labs
• Make architectural and design decisions independently, raising the bar for how the product looks, feels, and performs
• Act as a technical lead for a small pod of engineers, mentoring and unblocking teammates
• Partner directly with operations to turn high-leverage problems into product solutions
• Use AI coding tools daily to multiply your output while critically evaluating their results

Tech stack: TypeScript · Full-stack (frontend + backend) · AI coding tools (Cursor, Copilot)

Requirements

• 5–10 years building full-stack product engineering, with a track record of owning architecture decisions or mentoring other engineers
• Hands-on experience at a startup or small team shipping products from 01
• A product-minded builder who talks to users and makes design calls independently
• A CS or technical degree (Math, Physics, Engineering) from a strong program
• A full-stack generalist comfortable working across frontend, backend, and infrastructure
• Daily, critically-evaluated use of AI coding tools (e.g. Cursor, Copilot)
• Clear communicator who works well with non-technical operators and stakeholders

Nice to Haves

• DevOps / infrastructure experience
• Strong product and design taste — you care about how things look and feel

Why Join

• Join an early-stage AI company already working with top AI labs while still in stealth
• Real ownership and outsized impact as one of the first engineers on a lean, high-caliber team
• Competitive cash compensation plus meaningful equity

Details

• Location: New York, NY or San Francisco, CA
• Work policy: On-site, 5 days/week
• Compensation: $230K–$280K + equity
• Visa sponsorship: Available; open to transfers (e.g. OPT, H-1B)
• Employment type: Full-time