BackEnd API Developer | Contract | Atlanta, GA

Job Summary • Seeking a Backend API Developer to design, develop, and maintain scalable, secure, and high‑performance backend services and APIs. • Focus on building cloud‑native applications using: • Node.js (NestJS) • Python • Applications deployed in Kubernetes‑based cloud environments. • Work with enterprise and NoSQL databases (DB2 and MongoDB). • Ensure strong security controls and high code quality through automated testing and best practices. Key Responsibilities • Design, develop, and maintain RESTful APIs and backend services using: • Node.js with NestJS • Python • Build and operate cloud‑native microservices for Kubernetes deployment. • Develop and optimize database integrations with: • DB2 • MongoDB • Implement secure authentication and authorization using: • OAuth 2.0 • JWT • Apply OWASP secure coding standards across applications. • Write clean, maintainable, and well‑documented code. • Create and maintain automated testing, including: • Unit tests • Integration tests • API tests • Collaborate with DevOps, frontend, and architecture teams. • Participate in: • System design reviews • Code reviews • Architectural discussions • Troubleshoot and debug services to improve: • Performance • Scalability • Reliability • Support CI/CD pipelines and production readiness activities. Project Delivery Responsibilities • Lead and participate in: • System planning • Technical design reviews • Project coordination with IT teams • Estimate development efforts and maintain technical documentation. • Ensure compliance with: • SDLC standards • Change Management policies • Communicate system changes and their impact on: • Business processes • Dependent systems • Manage multiple development assignments while ensuring: • Timely delivery • High‑quality output Education & Experience • Bachelor’s degree in Computer Science, Engineering, or equivalent professional experience. • 3–5 years of professional API development experience in enterprise environments. • Experience contributing to or leading major system projects. • Ability to work independently with minimal supervision. • Strong analytical, problem‑solving, and decision‑making skills. • Experience working in Agile or Scrum teams. Required Qualifications • Strong backend development experience with: • Node.js and NestJS • Python • Experience building and consuming RESTful APIs. • Solid understanding of Kubernetes concepts, including: • Pods • Services • Deployments • Secrets • ConfigMaps • Hands‑on experience with: • MongoDB • DB2 or other enterprise relational databases • Proficiency in: • TypeScript • JavaScript • Python • Experience with automated testing tools: • JUnit • Jest • Postman • Familiarity with Git‑based source control systems. • Understanding of microservices architecture and distributed systems. Security & Compliance Skills • Hands‑on experience implementing: • OAuth 2.0 • JWT‑based authentication and authorization • Strong understanding of OWASP Top 10 vulnerabilities. • Experience securing APIs and backend services in cloud environments. • Ability to identify and remediate common security vulnerabilities. Preferred / Nice‑to‑Have Qualifications • Experience with messaging systems, such as: • Kafka • RabbitMQ • Experience deploying applications on: • AWS • Azure • GCP • Experience with observability tools: • Centralized logging • Metrics • Tracing • Knowledge of CI/CD pipelines and DevOps best practices. • Experience working in enterprise or regulated environments.