About OnePay

OnePay is the consumer fintech trusted by millions of Americans to make money better.

Our financial system is broken. High fees, low rates, and too few ways to actually grow your money. We’re fixing it. And we’re moving fast.

We’re an all-in-one financial services platform that brings together banking, high-yield savings, credit cards, point-of-sale lending, investing, and crypto in one place. We also partner with employers, HCM providers, gig platforms, and others to deliver embedded financial services to millions of employees and frontline workers.

We’re backed by Walmart, the world’s largest retailer, and Ribbit Capital, one of fintech’s most respected investors, giving us rare scale, distribution, and the opportunity to build something truly category-defining.

But what really sets OnePay apart is how we move. Our customers don’t have time to wait… and neither do we. This place moves fast, and we’re looking for people who are:

• Ready to run

• Hungry and driven by urgency

• Exceptional at what they do, with low ego

• Comfortable operating in motion

The Role

As a Quality Platform Engineer at OnePay, your work will directly shape how confidently every engineering team ships to production, building the internal tooling that catches problems before they reach customers of a financial platform millions of people trust. You will:

• Design and own shared automation frameworks used by engineering teams across web, mobile, and backend services

• Build and maintain infrastructure that runs automated suites reliably at scale, including flaky-test detection and triage tooling

• Partner with engineering teams to raise coverage and testing maturity, embedding quality practices into the development workflow rather than bolting them on afterward

• Develop platform for test environment provisioning, data management, and parallelized execution to keep feedback loops fast

• Define quality standards, provide observability (coverage, pass rates, run times), and maintain documentation and best practices to help engineers write and maintain effective automated tests

You Bring

• 5+ years of professional experience in frontend/backend/platform engineering with a strong testing focus

• Proficiency in TypeScript/Node.js or similar languages, with experience architecting test frameworks rather than just writing test cases

• Experience with cloud-native infrastructure (Kubernetes, AWS) and containerized test environments

• Familiarity with testing across the stack: API/integration testing, end-to-end testing for web and mobile (e.g., React Native)

• Strong communication and collaboration skills, able to influence testing practices across multiple engineering teams

• Drive and proactivity - everyone here is a builder and executor

Tools We Use

We use Node and TypeScript on the server, leveraging the NestJS framework within a microservice-oriented architecture running on Kubernetes and AWS. On the client side, we build and ship product features for iOS, Android, and web platforms using React Native. We also embrace AI-assisted development, so engineers have their choice of Claude Code or Cursor to fit their workflow. While you don't need experience with our exact stack, familiarity with modern software engineering practices will help you ramp up quickly.

What We Offer

• Competitive base salary, stock options, and health benefits from Day 1

• 401(k) plan with company match

• Remote-friendly (US), flexible time off (FTO), and opportunities for growth

• A high-growth, mission-driven, inclusive culture where your work has real impact

Standard Interview Process

Our process varies by role. Most candidates go through:

• AI-assisted initial screen

• Interview with Talent Partner

• Technical or Hiring Manager Interview

• Team Interview

• Executive Interview

• Offer!

Equal Employment Opportunity

To build technology and products that are used and loved by people and solve real-world problems, we need to build a team with many different perspectives and experiences. We are an equal opportunity employer. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. We encourage candidates from all backgrounds to apply. Applicants in need of special assistance or accommodation during the interview process or in accessing our website may contact us at talent@onepay.com.