5+ years of software development experience in distributed systems, with operational responsibility for mission-critical services Experience with NoSQL databases (e.g., DynamoDB) and serverless cloud architectures (AWS Lambda, API Gateway, Cognito, or equivalents on Azure/GCP) Expert in Python or Rust Deep knowledge of AWS, including serverless architectures Proven experience with CI/CD pipelines, testing frameworks, and operational excellence Strong project planning, communication, and delivery skills