# Senior Software Engineer, Payments at Wonderschool > United States · Senior · Software engineering · open. Source: https://alderhq.app/jobs/greenhouse%3Awonderschool%3A7802186003 (read 2026-11-06). ## Facts (observed) - Company: [Wonderschool](https://alderhq.app/companies/wonderschool) - Location text: San Francisco; San Francisco - Where it can be done from (inferred): United States (evidence: "Location: San Francisco; San Francisco") - Posted: 2026-10-17 (19 days ago) - First seen by alder: 2026-11-02 · last verified: 2026-11-04 - Reposted: 0 times · edited: 0 times - Apply on the employer's site: https://job-boards.greenhouse.io/wonderschool/jobs/7802186003 ## Pay and sponsorship - Posted pay: not posted - Market band for similar posted roles (SF Bay Area, n 1027): p25 $182k, median $205k, p75 $229k - H-1B filings at this company for similar roles, FY26: 1 ([US DOL OFLC LCA disclosure data](https://www.dol.gov/agencies/eta/foreign-labor/performance)) ## Description (the employer's text) ### 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. --- Data: alder (https://alderhq.app). Cite https://alderhq.app/jobs/greenhouse%3Awonderschool%3A7802186003 and the date you read it. Observed facts come from the employer's own listing; location reach, level, family and skills are inferences.