Oneapp
Software Engineer, Credit Card
United States (Remote). Posted a month ago
The role
You will design and build backend services for a co-branded credit card product. You will architect APIs and event-driven systems to handle sensitive financial data.
What you will do
- Design and build backend services that power the co-branded credit card product and partner system integrations
- Architect APIs and event-driven systems that handle sensitive financial data securely at scale
- Partner with risk, compliance, and platform teams to ensure features meet regulatory and security requirements
- Own reliability and performance for systems processing real-time credit transactions
- Drive technical decisions on system design, balancing scalability, security, and speed of delivery
- Mentor other engineers and raise the bar on code quality, testing, and operational practices
Required qualifications
- 3+ years of professional experience in backend or distributed systems development
- Experience building and operating production-grade APIs and microservices in a regulated or high-compliance environment
- Proficiency in Node.js or similar modern backend frameworks (TypeScript, NestJS, Go, or Java)
- Familiarity with cloud-native architecture (Kubernetes, AWS) and event-driven or microservice-based systems
- Strong understanding of data security, PCI compliance, or similar standards protecting sensitive financial data
- Strong communication and collaboration skills across product, risk, and platform teams
- Drive and proactivity
Nice to have
- Familiarity with modern software engineering practices
Benefits
- Competitive base salary
- Stock options
- Health benefits from Day 1
- 401(k) plan with company match
- Flexible time off (FTO)
Before you apply
- AI-assisted initial screen
- Interview with Talent Partner
- Technical or Hiring Manager Interview
- Team Interview
- Executive Interview
About the company
OnePay is a consumer fintech platform that brings together banking, high-yield savings, credit cards, point-of-sale lending, investing, and crypto. It is backed by Walmart and Ribbit Capital.