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OnePay

OnePay

via Ashby

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Staff Full Stack Engineer, Lending

Anywhere
full-time
Posted 9/13/2025
Direct Apply
Key Skills:
Full-stack development
React
NodeJS
Python
AWS
Distributed systems
API design
Technical leadership
Frontend frameworks
Backend architecture
Scalability
Security
Performance optimization

Compensation

Salary Range

$150K - 220K a year

Responsibilities

Lead design and delivery of complex lending platform projects, provide technical leadership, collaborate cross-functionally, and mentor engineers.

Requirements

Deep expertise in distributed systems, full-stack development, backend and frontend architecture, experience in regulated finance or payments, and strong leadership and communication skills.

Full Description

About OnePay OnePay is a consumer financial services app with an exceedingly simple mission: to help people achieve financial progress. Tens of millions of Americans today are unbanked or underbanked, meaning they don’t have enough money in savings to cover a minor emergency. They pay too much in fees, don’t have access to credit at affordable rates, and have little ability to grow their wealth. OnePay’s vision is to create a single app for consumers to save, spend, borrow, and grow their money, bringing our mission to life with simple and accessible banking, credit, and payments products that deliver a best-in-class experience to millions of customers. Our products include: Checking and high-yield savings accounts Domestic and international peer-to-peer payments Credit Builder and credit score monitoring Digital wallet / contactless payment solutions Buy-now-pay-later installment loans at Walmart Why do we have a right to win? We have the backing of Walmart (a Fortune 1) and Ribbit Capital (a preeminent fintech investor), are deeply embedded with the distribution of the world’s largest omnichannel retailer, and have an industry-leading multi-product value proposition — all in addition to having some of the best people and talent in the industry. There’s never been a better time to build a category-defining business and there has rarely been a team better positioned for the opportunity. Join us! The Role As a Staff Full Stack Engineer on our Lending team, you will deliver highly complex projects at scale and shape the technical direction of lending products that reach millions of customers. What You’ll Do Lead the design and delivery of high-impact, technically complex projects that power our lending platform at scale Provide technical leadership and clear, impactful communication to cross-functional stakeholders Drive hyper-optimization of lending systems to meet the needs of a large and growing addressable market Collaborate closely with product, design, and operations partners to build seamless, trustworthy lending experiences Mentor engineers across the team, fostering best practices in architecture, code quality, and scalability You Bring Deep expertise in building and scaling distributed systems, high-throughput APIs, and data-intensive services Strong full-stack skills, with fluency in backend architecture and modern frontend frameworks Experience designing systems with reliability, security, and performance in mind — ideally in payments, lending, or other regulated consumer finance domains Exceptional technical leadership and communication skills with a track record of influencing architecture and product direction Drive and proactivity – everyone here is a builder and executorr 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 Initial 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.

This job posting was last updated on 9/17/2025

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