Founding Engineer

Clera

San Francisco Posted November 5, 2026

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On-site Full-time Mid level
Job Description

About the Role

Join a pre-seed AI startup as Engineer #4 on the founding team, working directly with the CTO and fellow founding engineers. This is a high-ownership, fast-paced role where you'll ship features to production daily and own entire product areas from concept to deployment. The company is building fully agentic systems that automate complex workflows — technically challenging, high-impact work at the earliest stage.

What You'll Do

  • Ship features to production on a daily cadence

  • Own end-to-end product areas from initial concept through deployment

  • Design, build, and consume REST APIs on the backend

  • Build scalable frontend interfaces with React

  • Integrate AI/ML capabilities using providers such as OpenAI or Claude

  • Collaborate closely with the CTO and founding team to define technical direction

  • Model and manage data using PostgreSQL and Supabase

What We're Looking For

Required:

  • Proficiency in full-stack development with TypeScript/JavaScript and Python

  • Backend experience with Node.js and REST API design/consumption

  • Frontend experience with React for building scalable UIs

  • Experience with PostgreSQL and Supabase for data modeling and storage

  • Hands-on experience integrating AI/ML features via providers like OpenAI or Claude

  • Ability to thrive in a founding-stage startup environment — owning features and shipping rapidly

  • Strong communication and cross-functional collaboration skills

  • Willingness to work on-site in San Francisco (hackerhouse environment) or commute as needed

Location & Work Arrangement

This role is based on-site in San Francisco, CA. The team works out of a shared hackerhouse/office environment. Visa sponsorship is available.

Required Skills
agents REST API React artificial intelligence collaboration PostgreSQL TypeScript JavaScript Python Node.js data architecture communication cross-functional collaboration
How to apply

You apply on Clera’s own careers site. No account needed.

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