engineering
Posted Dec 17, 2025Founding Engineer
at Terac
San Francisco, United StatesOn-site
Responsibilities
- - Build marketplace systems: opportunity routing, pricing optimization, expert LTV modeling, and feasibility estimation.
- - Design the expert network experience, including onboarding flows, opportunity matching, payouts, and trust systems that make experts want to stay on the platform.
Requirements
- - Build and extend the Terac API that research tooling companies and AI data companies integrate against.
- - Ship the AI moderator, our voice agent that screens candidates, evaluates long-horizon tasks, detects cheating, and handles multi-language conversations.
- - Work directly with the CTO to shape technical direction across Next.js, TypeScript, tRPC, Drizzle, Neon Postgres, LiveKit, and the Vercel AI SDK.
- YOU ARE: - A high-agency builder with 3+ years of fullstack experience. - Fluent in modern web stacks (TypeScript, React, Postgres). - Experienced with LLMs, voice AI, or AI SDKs (Vercel AI SDK, Gemini, LiveKit). - Excited by marketplace dynamics like matching, routing, pricing, and network effects. - Maybe a former founder or lead who is hungry to build again.
- WHY NOW: - We are at the inflection point, shifting from a research tool into a platform company with 10+ API integrations launching in the next quarter. - The human data market for AI training is exploding and we have the recruitment infrastructure already built. - You would be joining a 10-person team with 9M in funding and a growing base of happy customers.
Benefits
- MISC - We operate in-person six days per week in our downtown SF office - Compensation: Competitive salary, menaingful equity vested over four years, $10K relocation bonus (for moving to the Bay Area), and an additional $5k housing bonus (if you move within 0.5 miles of our office), Health, Dental, Vision insurance, 401(k) with company match - Terac culture: Between weekly presentations, company hackathons, and an AI-first mindset, you will be working with one of the most innovative teams on the planet.