About this opportunity
AtoB Inc. lists this Senior Software Engineer, Full Stack opportunity in san francisco, California. Review the employer’s description below for duties, qualifications and application requirements.
Job description
Responsibilities
Lead efforts for often ambiguous technical projects, laying the groundwork for early-stage products to iteratively evolve and scale.
Design, build, and maintain APIs, user-facing experiences, services, and systems.
Make effective tradeoffs between business priorities, user experience, and reliability.
Work with critical frontend, backend & platform projects end-to-end—from design to production ops.
Push architecture that scales to billions in annual payment volume and real-time risk controls.
Work closely with product and GTM leads to turn ambiguous problems into elegant code.
Qualifications
Have 5+ years of professional experience building B2B or B2C SaaS products (FinTech, payments, or marketplace a plus).
Thriving in zero-bureaucracy, high-ownership environments.
Balance speed with rigor—automated tests, clean abstractions, clear docs.
Can participate in architecture discussions and still dive deep into code (we use React, Ruby, Postgres but great engineers pick up tools fast).
Communicate crisply across time zones.
This role is required to be in office 4 days/week (Mon-Thurs) either in San Francisco Bay Area or New York .
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Worksite address
san francisco, CA, 94199, US
Who can apply
Review the original listing for work authorization, qualifications and employer requirements.