Full Stack Engineer, Lending

OnePay is a consumer fintech trusted by millions of Americans to make money better. As a Full Stack Engineer on the Lending team, you will deliver complex projects at scale and shape the technical direction of lending products that serve millions of customers.

Responsibilities:

• 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

Requirements:

• 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 executor
• Familiarity with modern software engineering practices