6+ years of experience in software architecture, cloud architecture, or senior engineering roles. Strong expertise in AWS core services (Lambda, ECS, EC2, VPC, ALB, IAM, API Gateway, S3, DynamoDB, OpenSearch, RDS). Experience designing serverless-first and event-driven architectures. Familiarity with identity federation and SSO (SAML, OAuth2, JWT). Experience with multi-region and high-availability designs. Strong understanding of cloud security best practices and zero-trust principles.