senior-backend - Senior Backend Engineer: API Design, Database Optimization & Security
Designs and implements backend systems including REST APIs, microservices, database architectures, authentication flows, and security hardening.
Tags
Updated: 2026-06-30Capabilities
Typical Inputs
Typical Outputs
What this skill does
- Generate API route handlers
- Generate validation middleware
- Generate OpenAPI specifications
- Generate TypeScript type definitions
- Analyze database schemas
- Generate database migration files
- Suggest database index optimizations
- Perform API load testing
- Compare API endpoint performance
Inputs
- OpenAPI spec (YAML/JSON)
- Database connection string
- Database schema files
- API endpoint URL
- Load test configuration
Outputs
- Route handler files
- Validation middleware files
- TypeScript type definitions
- OpenAPI specification files
- Database migration files
- Schema diff reports
- API performance reports
Requirements
- Python runtime
- Node.js with Express/Fastify/Koa
- PostgreSQL database access
- Network access to API endpoints