Founding Product Engineer
Automate your job search with Sonara.
Submit 10x as many applications with less effort than one manual application.1
Reclaim your time by letting our AI handle the grunt work of job searching.
We continuously scan millions of openings to find your top matches.

Overview
Job Description
About the Role
A well-funded, early-stage fintech startup is looking for a Founding Product Engineer to join a small, senior team building a new kind of collaborative financial product. You'll have broad ownership across the stack, working directly with the founding team to ship high-quality, polished features for a consumer-facing application with a 40,000+ person waitlist.
What You'll Do
Design, develop, and deliver features, fixes, and improvements across the core product, marketing site, and internal tools.
Take end-to-end ownership of major product areas — such as debit card functionality or internal risk assessment tooling — from concept through launch.
Work closely with the founder, lead engineer, and designer to architect and implement solutions that delight users.
Build and wire up APIs across a full stack of React, TypeScript, Go, and PostgreSQL.
Leverage AI tools to accelerate development and contribute to a culture of high-quality engineering.
Help scale the product to meet rapidly growing consumer demand.
What We're Looking For
Required:
Strong proficiency in TypeScript (React) on the front end and comfort with Go on the back end.
Prior experience shipping and maintaining features for B2C / consumer-facing products.
Solid experience with PostgreSQL and Redis.
Familiarity with AWS, Terraform, and Docker for infrastructure and deployment.
Experience building and integrating REST or GraphQL APIs.
Comfortable working in a fast-paced, early-stage startup environment with broad ownership.
Nice to Have:
Experience using AI coding assistants and prototyping tools to accelerate development.
Background in fintech, payments, or financial services.
Familiarity with tools like Slack, Linear, GitHub, and Figma.
Compensation & Benefits
Salary: $190,000 – $210,000 USD annually
Early-stage equity
Visa sponsorship is not available
Location
This is a hybrid role based in San Francisco, CA. Candidates in Los Angeles, CA or New York City, NY may also be considered. Remote-only candidates will not be considered at this time.
Automate your job search with Sonara.
Submit 10x as many applications with less effort than one manual application.
