Backend Engineer

Summary

Join Credit Key, a leading provider of flexible B2B payment solutions, as a Backend Engineer. You will design and implement backend systems, APIs, and features, owning services end-to-end. Collaborate with cross-functional teams to build solutions, share knowledge, and improve team quality. The ideal candidate thrives in building, running, and improving complex systems, balancing pragmatism with craft. You will translate business requirements into maintainable code, make architecture decisions, and review code. Credit Key offers competitive compensation, great healthcare, PTO, 401k match, and a fully remote, flexible work environment.

Requirements

• 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

Responsibilities

• 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

Preferred Qualifications

• Experience with e-commerce platforms: Shopify, Magento, BigCommerce, WooCommerce, NetSuite
• Experience scaling MongoDB or other NoSQL databases
• Docker and container orchestration experience
• Experience in security-conscious industries (e.g., FinTech)
• Familiarity with infrastructure-as-code and operational best practices

Benefits

• Competitive compensation + equity
• Great healthcare benefits
• PTO
• 401k Match
• 100% Remote. Flexible work schedule & location
• Supportive, low ego, highly collaborative team environment
• Work from home stipend