ABOUT CREDIT KEY

As the leading provider of flexible, buy now pay later payments for B2B transactions, hundreds of organizations rely on Credit Key to offer their business customers greater access to capital, faster approvals, and extended payment terms using embedded financing. Our mission is to deliver a superior payment experience at B2B point-of-purchase — and we can’t do it without top tier talent.

WHO WE ARE

We’re a small, experienced, and collaborative team of developers who value learning, experimentation, and developer happiness. No death marches. No endless crunch. No after-hours firefighting (unless it’s genuinely fun). We plan thoughtfully, prioritize ruthlessly, and iterate quickly to find what works.

REQUIRED SKILLS

• 5+ years building complex backend systems
• Experience in Ruby, Rails, JavaScript, Node.js, NestJS, TypeScript, or similar
• Strong programming skills in more than one language
• Solid Git fundamentals
• Expertise in SQL and/or NoSQL schema design and complex queries
• Experience designing RESTful APIs
• Ops experience: deploying and maintaining services, monitoring, cloud infrastructure (AWS preferred), Terraform, CI/CD pipelines

As a Backend Engineer at Credit Key, you’ll:

• Design and implement backend systems, APIs, and features
• Own services end-to-end, including deployment, monitoring, and scaling
• Contribute to architecture discussions and design documentation
• Collaborate with product, engineering, and operations teams to define realistic MVPs and iteratively build solutions
• Share knowledge and help raise the quality bar across the team

You’ll bring your experience to guide best practices while flexing your expertise in specific areas of the platform. We value engineers who combine technical rigor with practical judgment: knowing when to innovate, when to iterate, and when to optimize for maintainability.