Strong Node.js experience (modern JavaScript/TypeScript, async patterns, event-driven architecture, scalable services) Postgres expertise (schema design, query optimization, indexing strategies, performance tuning) DevOps proficiency (Docker, CI/CD pipelines, cloud infrastructure - AWS/GCP/Azure, infrastructure-as-code - Terraform, CloudFormation) API integration experience (REST APIs, webhooks, authentication flows) Full stack capability Prototype mindset AWS experience (EC2, Fargate, ECS, Lambda, Bedrock, Sagemaker) Frontend skills (Angular, React, or similar) .NET Core development experience