Wonderschool
New

Senior Software Engineer, Payments

United StatesUnited States·San Franciscosenior
Software EngineerSoftware Engineering
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Quick Summary

Key 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,

Technical Tools
Software EngineerSoftware Engineering

Location: San Francisco (Rincon Hill)


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.


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.


Responsibilities

~1 min read
  • 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

  • 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

What We Offer

~1 min read
Base salary: Competitive market rate
Equity: Significant, meaningful ownership
Full health coverage
Wellness stipend (gym and office)
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.

Location & Eligibility

Where is the job
San Francisco, United States
On-site at the office
Who can apply
US

Listing Details

Posted
July 12, 2026
First seen
July 12, 2026
Last seen
July 12, 2026

Posting Health

Days active
0
Repost count
0
Trust Level
67%
Scored at
July 12, 2026

Signal breakdown

freshnesssource trustcontent trustemployer trust
Wonderschool
Wonderschool
greenhouse
Employees
125
Founded
2016
View company profile
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WonderschoolSenior Software Engineer, Payments