Senior Software Engineer, Payments

Wonderschool•San Francisco, CA

3h•Onsite

About The Position

Own the engineering behind a payments platform that processes at least $3 billion through our platform, working alongside a small, dedicated team. We move money across banking, debit cards, Stripe, SAP, partner advances, and payroll, we run our own billing platform, and we lean on third-party partners for most of our fintech capabilities, so much of this is integration, orchestration, and tracking work. There is a lot to build here. You will consolidate and refactor a system built across many legacy integrations into something clean, reliable, and fast, and you will spend a lot of time directly with customers.

Requirements

Senior engineer with a strong payments background and real experience building payment systems and integrations (fintech a plus).
Exceptionally high attention to detail.
Comfortable with the regulatory landscape around payments, banking, and cards.
Uses AI tools and figures things out independently.

Nice To Haves

Strong finance background is a plus.
Excited to be close to the build and close to customers.
Likes working on a small team and moving fast; bias toward action.

Responsibilities

Consolidate and refactor a payments system assembled from many legacy system integrations.
Build and maintain integrations across banking, debit cards, Stripe, SAP, partner advances, payroll, and our billing platform.
Own the orchestration and tracking/reconciliation layer across our third-party fintech partners.
Design for correctness first, because money movement demands it.
Work directly with customers to understand real-world failure modes and edge cases.
Partner daily with product to build, ship, measure, and iterate.
Build within the laws and regulations governing payments and financial services.