Senior Software Engineer, Payments

🇺🇸In-Person - San Francisco1mo ago

K-12 Engineering Software Engineering Payments Platform Fintech Integration Backend Development API Integration

Role Snapshot

Lead the engineering of Wonderschool's payments platform that processes $3+ billion annually, consolidating legacy integrations into a clean, reliable system. Work closely with a small dedicated team to build integrations across banking, cards, Stripe, payroll, and billing while ensuring regulatory compliance.

Key Responsibilities: Build and maintain integrations across multiple fintech partners (banking, debit cards, Stripe, SAP, payroll); own the orchestration and reconciliation layer; consolidate and refactor legacy payment systems; work directly with customers to understand failure modes and edge cases.

Skills & Tools: Strong payments and fintech background with demonstrated experience building payment systems and integrations; exceptional attention to detail with finance knowledge preferred; comfort with payments regulations, banking, and card compliance; ability to use AI tools independently and move fast on a small team.

Qualifications: Senior-level engineer with proven real-world experience building payment systems and fintech integrations; understanding of regulatory landscape governing payments and financial services; track record of working on complex integration and orchestration systems.

Location: In-Person - San Francisco

Compensation: Not provided by employer. Typical compensation for this role is $180,000 – $280,000/year based on title, seniority, and location.

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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.

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