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
As a Full Stack Engineer on our Lending team, you’ll help deliver impactful projects at scale and support the technical direction of lending products that reach millions of customers.
Lead technical design and implementation for projects powering our lending platform
Set architectural standards and ensure best practices in code quality, performance, and scalability
Partner closely with product, design, and operations to shape and deliver lending product strategy
Oversee optimization of systems for reliability, security, and scalability
Own technical decision-making, balancing rapid delivery and sustainable solutions
8+ years of experience building and scaling distributed systems, high-throughput APIs, or data-intensive services
Solid hands-on full-stack engineering skills, with proficiency in backend architecture and modern frontend frameworks
Experience designing or working on reliable, secure, and high-performance systems—ideally in payments, lending, or other regulated consumer finance domains
Clear communication skills and a collaborative working style
Initiative and growth mindset—eager to learn and contribute as a team player
We use Node and TypeScript on the server, leveraging the NestJS framework in a microservice-oriented architecture running on Kubernetes and AWS. On the client side, we build and ship 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. Experience with our exact stack isn’t required—familiarity with modern software engineering practices will help you ramp up quickly.
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
Initial Interview with Talent Partner
Technical or Hiring Manager Interview
Team Interview
Executive Interview
Offer!
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.
We believe the future of financial services is meeting consumers where they already are — in their daily lives, workplaces, and communities nationwide. OnePay is an all-in-one financial platform already helping millions of consumers save, spend, borrow, and grow money. With fee-free banking, high-yield savings, overdraft protection, instant money transfers, cashback rewards, credit-building tools, and flexible borrowing options, OnePay gives consumers the tools they need to make real financial progress — all in one place.
In addition to its fast-growing consumer business, OnePay also serves employers, HCM providers, and gig platforms. Through its B2B financial wellness suite, OnePay consolidates savings, spending, and credit tools into one platform, complementing or unifying existing benefits to improve employee stability, engagement, and productivity.
Backed by Ribbit Capital and Walmart, OnePay has a 4.8★ app rating, is growing quickly, and is always looking for talented people to join our team. Learn more at www.onepay.com.
OnePay is a financial technology company, not a bank. Banking services provided by Coastal Community Bank or Lead Bank, Members FDIC.
