4+ years of professional software engineering experience building production backend systems.
Direct experience designing and implementing MCP servers - you have shipped at least one MCP integration that is in production or active use.
Strong proficiency in Node.js or TypeScript; familiarity with Java is Mandatory.
Experience with AWS Lambda, API Gateway, VPC networking, Secrets Manager, and CloudWatch.
Solid understanding of REST API design, OpenAPI/Swagger specifications, and API versioning strategies.
Experience with OAuth 2.0 flows (client credentials, on-behalf-of) and API Key management.
Clear understanding of how LLMs consume tool definitions and how tool description quality affects agent behavior.
Strong security instincts: you know the difference between authentication and authorization, and you think about credential exposure before writing the first line.