# Senior Software Engineer, Payments at Wonderschool

Senior Software Engineer, Payments at Wonderschool in San Francisco. On-site. Posted November 3, 2026.

- Company: Wonderschool
- Location: San Francisco
- Workplace: On-site
- Posted: 2026-11-03
- Apply: https://job-boards.greenhouse.io/wonderschool/jobs/7802186003
- Source: https://jobmagic.ai/jobs/senior-software-engineer-payments-wonderschool-dr6y4v

## 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.