• Design, build, and operate serverless services on AWS, including Lambda, API Gateway, DynamoDB, EventBridge, and Step Functions. • Develop secure, versioned APIs with rate limiting, pagination, and robust authentication/authorization controls. • Implement OAuth client credentials workflows, mutual TLS (mTLS), and JWT validation for external and internal integrations. • Create and maintain Infrastructure as Code (IaC) using AWS CDK or CloudFormation for multi-account, multi-region environments. • Build CI pipelines with automated unit and integration tests, environment deployments, and synthetic checks for early detection. • Configure and manage observability tooling including distributed tracing, structured logs, and operational metrics to ensure service reliability and performance. • Design and optimize DynamoDB table keys, TTL strategies, and stream processing for cost-efficient, high-throughput workloads. • Implement event-driven interfaces and data exchange patterns for utility partners, grid-edge devices, and internal teams. • Collaborate with data engineering, analytics, and program operations teams to ensure platform components meet performance, scalability, and compliance requirements. • Contribute to architecture reviews, code reviews, and engineering best practices. • Support production systems through monitoring, runbooks, and occasional after-hours response. • Perform other duties as assigned in a fast-moving, mission-focused environment.