Find a jobRecruiters

Founding Engineer

Exclusive opportunity

Onsite

Founding Engineer

Crossing Hurdles

Founding Engineer

Skills

NextReactTypescriptPythonPostgreSQLAIAWS

7 days ago

Share this opportunity

Share this opportunity to other talents of your network:
✓ Offer them a visibility boost with clients.
✓ Help your contacts find their next job.

Important information


Contract type:

Permanent

Location:

San Francisco, CA, USA

Work mode:

Onsite

Published on:

15 October 2026

What they need


Crossing Hurdles is partnering with a AI startup connecting research and AI companies with domain experts. It has built a network of 160,000+ experts and is expanding into a platform, with 10+ API integrations launching next quarter.

Quick Snapshot

  • Role: Founding Engineer
  • Compensation: $140K to $210K + meaningful equity
  • Location: On-site, San Francisco
  • Experience: 3+ years of full-stack experience, strong TypeScript, React, and Postgres skills, and experience with LLMs, voice AI agents, or evaluation systems
  • Stack: TypeScript, Next.js, Python, Postgres, AWS

What you will do?

  • Own and scale the recruitment engine, the algorithm that finds any niche audience in the world through network traversal, targeted ads, referrals, automated outbound, and anything else you can come up with.
  • Build and extend the company's API that research tooling companies and AI data companies integrate against.
  • Build and improve agents that screen experts through voice and chat, assess their work, identify fraud, and help our team run projects. Evaluate how they perform with real users and make their actions reliable and reviewable.
  • Build marketplace systems for opportunity matching, pricing, feasibility estimation, and repeat engagement. Use what we learn from completed projects to improve who we recruit and how we match them.
  • Design and build the expert experience, including onboarding, project instructions, ongoing work, and payouts. Work with experts and our operations team to understand where people get stuck and fix it.
  • Own the behavior of what you ship in production. Investigate failures across the product, background jobs, and external services, and improve the systems that handle people s work, data, and money.
  • Work directly with the CTO to shape the architecture behind autonomous agents, real-time voice, and a global expert marketplace. Our core stack includes TypeScript, Next.js, Python, Postgres, and AWS.

Why Consider It

  • Work directly with the CTO and own projects from investigation through production.
  • Build voice and chat agents for expert screening, fraud detection, work assessment, and operations.
  • Develop recruitment, marketplace matching, onboarding, payment, API, and customer-integration systems.
  • Help shape the product and technical architecture at a key stage of growth.

Other offers great for you!

These companies are also looking for great profiles

Sander

Founding Engineer (Node.js / Python)

90 000€

Permanent contract

Paris, France

Onsite

Skills

ReactNodePython

7 months ago

Quick apply

Hexa

Founding Engineer @Verso (backed by Hexa)

90000

Permanent contract

Paris, France

Hybrid

Skills

Fullstack Development

7 months ago

Quick apply

Hexa

Founding Engineer @Plato (backed by Hexa)

Permanent contract

Paris, France

Onsite

5 months ago

Quick apply

The best place to find your next move

© 2026. All Rights Reserved.

Talents

Find a job

Create a profile

Solutions and tools