Founding Product Engineer

San Francisco on site Until 8/22/2026 First posted June 8, 2026 Last posted June 8, 2026
Job description

About the Role

We are seeking an experienced fullstack product engineer to join our small, senior team at an early-stage fintech startup. You'll work in a fast-paced environment where you can contribute to both front-end and back-end development while building a new kind of financial product from the ground up.

What You'll Do

  • Design, develop, and deliver features, fixes, and improvements across our core product, marketing site, and internal tools

  • Take ownership of major product areas and drive them from concept to launch

  • Work closely with the founding team and contract designer to architect and implement high-quality, polished solutions for users

  • Build and wire up APIs for the features you develop, working across our full stack (React, TypeScript, Go, PostgreSQL)

  • Contribute to a culture of teamwork and high-quality engineering, leveraging AI tools to accelerate development

  • Help scale the product to meet growing user demand

What We're Looking For

  • Strong product sense and experience shipping and maintaining features for consumer-facing products

  • Willingness to own large surface areas of an application from end to end

  • Comfort working in an early-stage startup environment with ambiguity and rapid iteration

  • Proficiency in fullstack development across front-end and back-end technologies

About this role

Summary

Build and maintain features for a fintech startup's core product and tools

Job title

Founding Product Engineer

Experience level

Industry

fintech

Location requirements

San Francisco, no remote work allowed

Salary

Not specified

Management role

No

Skills & keywords

Required skills

reacttypescriptgopostgresql

Preferred skills

None specified

Specializations

fullstackfront-endback-endAPI
Locations

Structured locations inferred from the posting.

San Francisco, CA, USA

On-site City