Backend Engineer - Credit Card Platform (Remote)

OnePay; United States; Remote; USD 140,000 - 190,000; Full time

Benefits offered by this job

Competitive base salary, stock options

Health benefits from Day 1

401(k) plan with company match

Remote-friendly (US), flexible time

Growth opportunities in a mission‑driv

Job summary

OnePay, a consumer fintech trusted by millions of Americans, is hiring a Backend Engineer on the Credit Card Team to shape the infrastructure behind our co-branded credit card product. You will design and build backend services, architect APIs and event-driven systems, and partner with risk, compliance, and platform teams to meet regulatory and security requirements.

You will own reliability for real-time credit transactions, mentor teammates, and drive scalable solutions in a cloud-native,

Qualifications

• 3+ years of backend or distributed systems development.
• Experience building production-grade APIs and microservices in fintech/payments/banking or similar.
• Proficiency with modern backend frameworks (Node.js/TypeScript, NestJS, Go, or Java).
• Familiarity with cloud-native architecture (Kubernetes, AWS).
• Strong understanding of data security and compliance (PCI, etc.).

Responsibilities

• Design and build backend services powering our co-branded credit card product and integrations.
• Architect APIs and event-driven systems handling sensitive financial data securely at scale.
• Collaborate with risk, compliance, and platform teams to 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 delivery speed.
• Mentor other engineers and raise code quality and operational practices across the team.

Skills

Backend development

Distributed systems

Communication

Proactivity

Tools

Node.js

TypeScript

NestJS

Go

Java

Kubernetes

AWS

React Native

Job description

OnePay, a consumer fintech trusted by millions of Americans, is hiring a Backend Engineer on the Credit Card Team to shape the infrastructure behind our co-branded credit card product. You will design and build backend services, architect APIs and event-driven systems, and partner with risk, compliance, and platform teams to meet regulatory and security requirements.

You will own reliability for real-time credit transactions, mentor teammates, and drive scalable solutions in a cloud-native,