Senior Software Engineer, Payments at Wonderschool

Job description

Senior Software Engineer, Payments Location: San Francisco (Rincon Hill) Company Overview Mission: Make high-quality early childhood education accessible to all by empowering childcare providers with tools and support while helping parents find quality learning environments. What We're Building: A category-defining platform at the intersection of marketplace, SaaS, and public sector systems, increasingly powered by AI. Series B backed by a16z, Goldman Sachs, and First Round. The Role 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. What You'll Do Build alongside a dedicated payments team: 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 Who You Are Senior engineer with a strong payments background and real experience building payment systems and integrations (fintech a plus) Exceptionally high attention to detail; 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 Comfortable with the regulatory landscape around payments, banking, and cards Uses AI tools and figures things out independently Compensation & Benefits Base salary: Competitive market rate Equity: Significant, meaningful ownership Full health coverage Wellness stipend (gym and office) Travel stipend for certain circumstances Application Apply with your resume and a short note on the most complex payments or integration system you have built. This is a full-commitment, full-ownership role, based in our San Francisco office. You will work very closely with the CEO, in office five to six days a week.

Requirements

Must-haves

Senior Software Engineer, Payments
Location: San Francisco (Rincon Hill)
Company Overview
Mission: Make high-quality early childhood education accessible to all by empowering childcare providers with tools and support while helping parents find quality learning environments.
What We're Building: A category-defining platform at the intersection of marketplace, SaaS, and public sector systems, increasingly powered by AI. Series B backed by a16z, Goldman Sachs, and First Round.
Build alongside a dedicated payments team: 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
Excited to be close to the build and close to customers
Likes working on a small team and moving fast; bias toward action
Comfortable with the regulatory landscape around payments, banking, and cards
Uses AI tools and figures things out independently
Compensation & Benefits
Base salary: Competitive market rate
Equity: Significant, meaningful ownership
Travel stipend for certain circumstances
Apply with your resume and a short note on the most complex payments or integration system you have built.
This is a full-commitment, full-ownership role, based in our San Francisco office. You will work very closely with the CEO, in office five to six days a week.

Nice-to-haves

Senior engineer with a strong payments background and real experience building payment systems and integrations (fintech a plus)
Exceptionally high attention to detail; strong finance background is a plus

Application prep

Use the role’s language and application details while tailoring your materials.

Keywords to mirror

Platform: greenhouse
Effort: quick

Benefits

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Wellness