ONE Finance
Software Engineer, Credit Card
$140K–$190K
United States (Remote) · Remote · Full-time · Posted Sep 30, 2026
- Experience
- 3+ years of professional experience in backend or distributed systems development.
About the job
Build and operate secure, reliable backend systems and integrations for OnePay’s co-branded credit card product.
What you'll do
- Design backend services, APIs, and event-driven systems for credit card products and partner integrations.
- Own reliability and performance of real-time credit transaction systems while meeting security and regulatory requirements.
- Drive system design decisions and mentor engineers on code quality, testing, and operations.
What they ask for
- 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.
- Familiarity with cloud-native architecture and event-driven or microservice-based systems.
- Understanding of data security, PCI compliance, or similar standards for sensitive financial data.
Pay
$140K – $190K USD base salary
Tools
Node.js, TypeScript, NestJS, Go, Java, Kubernetes, AWS, React Native
AI focus
The team embraces agentic development; engineers may use models and agent harnesses such as Claude Code, Cursor, and Codex.
Model-written summary · the original posting is authoritative