• Develop scalable backend service components using TypeScript, Node.js, Express, MongoDB, and PostgreSQL. • Build, maintain, and optimize RESTful APIs with clear roles, permissions, and audit logging aligned with HIPAA compliance requirements. • Refactor existing Node.js codebases to modern TypeScript standards, ensuring improved maintainability and reliability. • Write comprehensive unit and integration tests to ensure code reliability and robustness. • Collaborate closely with frontend engineers (React, NextJS) to deliver cohesive, responsive user experiences. • Engage with data engineers to allow for backend applications to mesh well with data-driven components and BI tools. • Optimize backend performance and troubleshoot production issues promptly, ensuring minimal downtime. • Leverage AWS services including S3, Route 53, App Runner, Fargate, Bedrock, and Transfer Family for secure deployment and scalability. • Participate actively in code reviews, knowledge sharing discussions, and development decisions to continuously enhance code quality and team practices. • Document backend architecture, API specifications, and technical decisions clearly and effectively.