One.App
From One.App's careers page
Status: listed on the employer's own careers page when we last checked (daily). Confirm on their site before applying.
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 Software Engineer on the Banking team at OnePay, your work will have a direct impact on how people access, move, and manage their money, driving everything from the design of scalable banking services to the reliability of real-time money movement that help our customers trust us with their finances. You will:
Lead technical design and delivery of banking features that scale with our growing customer base and support a seamless mobile experience
Set architectural standards and best practices for code quality, performance, security, and reliability across our banking services
Own the technical approach to complex challenges at scale, including sensitive financial data and real-time money movement
Mentor and grow engineers through design reviews, code reviews, and hands-on collaboration on tough problems
Partner closely with product, design, risk, and compliance to shape the roadmap and turn it into high-quality, shipped software
Create and maintain clear documentation, a must-have for a growing, remote organization
YOU BRING
7+ years of professional experience in backend or full-stack software engineering, including technical leadership of projects or teams
Proven success designing, building, and scaling production-grade APIs and distributed systems, ideally in banking, payments, or other regulated financial services
Experience with sensitive financial data and money movement systems, such as ledgers, account management, ACH, or card processing
Proficiency in Node.js and TypeScript or similar modern backend frameworks, and familiarity with microservices, Kubernetes, and AWS
Experience with mobile or user-facing applications, ideally React Native, is a plus
Strong communication and collaboration skills, with a track record of mentoring engineers and driving technical decisions across teams
Drive and proactivity - everyone here is a builder and executor
TOOLS WE USE
We use Typescript front to back, with node and NestJS frameworks for server code and React Native for our iOS, Android, and Web clients. We run on a highly distributed cloud-native stack with Kubernetes and AWS, and scale and resiliency are at the heart of everything we build. We also embrace agentic development, so engineers have their choice of a variety of models and agent harnesses, including Claude Code, Cursor, Codex, and more 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.
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
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.
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