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Wonderschool

Senior Software Engineer, Payments

🇺🇸 San Francisco, CA 🕑 Full-Time 💰 TBD 💻 Software Engineering 🗓️ July 14th, 2026
SaaS

Edtech.com's Summary

Wonderschool is hiring a Senior Software Engineer, Payments to lead the engineering of a payments platform managing over $3 billion in transactions. The role involves consolidating and refactoring legacy payment integrations, building and maintaining fintech connections, and working directly with customers to ensure system reliability and compliance.

Highlights
  • Own and refactor a complex payments system integrating banking, debit cards, Stripe, SAP, partner advances, payroll, and billing platforms.
  • Design for accuracy and compliance in money movement and financial services regulations.
  • Collaborate closely with customers to address real-world payment failures and edge cases.
  • Partner daily with product teams to build, ship, and iterate payment solutions.
  • Senior engineer role requiring strong payments and fintech integration experience.
  • Comfortable navigating the regulatory landscape surrounding payments, banking, and cards.
  • Uses AI tools for problem-solving and works independently.
  • Competitive base salary with significant equity ownership.
  • Offers full health coverage, wellness and travel stipends.
  • Position involves working closely with the CEO in a San Francisco office environment.

Senior Software Engineer, Payments Full 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.