Backend Engineer, Fintech Credit Card (Remote)

Openkrill; United States; Remote; USD 120,000 - 180,000; 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 off

growth opportunities

Job summary

OnePay is seeking a Backend Engineer for the Credit Card team to build and maintain backend services powering the co-branded credit card product. You will design APIs and event-driven systems, ensuring secure handling of sensitive financial data at scale.

You will partner with risk, compliance, and platform teams to meet regulatory requirements and own reliability for real-time transaction processing. This role emphasizes scalability, security, and delivering fast, dependable software.

Qualifications

• 3+ years of backend or distributed systems development.
• Experience building APIs and microservices in fintech or regulated environments.
• Proficiency in modern backend frameworks and cloud-native architecture.
• Strong understanding of data security and PCI compliance.

Responsibilities

• Design and build backend services powering the co-branded credit card product.
• Architect APIs and event-driven systems for secure data handling at scale.
• Collaborate with risk, compliance, and platform teams to meet security requirements.
• Own reliability and performance for real-time credit transaction processing.
• Drive system design decisions balancing scalability, security, and speed.

Skills

Backend development

Node.js/TypeScript

NestJS

Cloud: Kubernetes/AWS

Data security/PCI

Tools

Typescript

Node.js

NestJS

Kubernetes

AWS

React Native

Job description

OnePay is seeking a Backend Engineer for the Credit Card team to build and maintain backend services powering the co-branded credit card product. You will design APIs and event-driven systems, ensuring secure handling of sensitive financial data at scale.

You will partner with risk, compliance, and platform teams to meet regulatory requirements and own reliability for real-time transaction processing. This role emphasizes scalability, security, and delivering fast, dependable software.