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Backend APIs | Node.js, Python, Database

$22/hr Starting at $600

I build fast, scalable, production-ready backend APIs. Whether you need a new REST/GraphQL API, database optimization, or scaling existing systems, I deliver clean code with comprehensive testing and documentation.

 

WHAT I DELIVER: RESTful APIs (OpenAPI/Swagger documented), GraphQL APIs with efficient data fetching, Database design and optimization, Real-time APIs (WebSocket, Server-Sent Events), Authentication & authorization systems, Rate limiting, caching, performance optimization, Comprehensive API documentation, Load testing and performance benchmarks.

 

TECH STACK: Languages: Node.js (TypeScript), Python. Frameworks: Express, Fastify, Django, FastAPI. Databases: PostgreSQL (advanced optimization), MongoDB, Redis. Testing: Jest, Mocha, Pytest, Supertest. Deployment: AWS, Docker, Kubernetes.

 

MY DIFFERENTIATORS: Expert in database optimization (complex queries, indexing, scaling). Built APIs handling 100k+ daily requests. Security-first approach (injection prevention, rate limiting, input validation). Performance obsessed (monitoring, optimization, benchmarks). Type-safe development (TypeScript everywhere). Comprehensive testing. Auto-generated API documentation.

 

IDEAL FOR: New API development from scratch, Scaling existing APIs, Database optimization, Microservices architecture, Mobile app backends, Marketplace/platform backends, Data-intensive applications.

About

$22/hr Ongoing

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I build fast, scalable, production-ready backend APIs. Whether you need a new REST/GraphQL API, database optimization, or scaling existing systems, I deliver clean code with comprehensive testing and documentation.

 

WHAT I DELIVER: RESTful APIs (OpenAPI/Swagger documented), GraphQL APIs with efficient data fetching, Database design and optimization, Real-time APIs (WebSocket, Server-Sent Events), Authentication & authorization systems, Rate limiting, caching, performance optimization, Comprehensive API documentation, Load testing and performance benchmarks.

 

TECH STACK: Languages: Node.js (TypeScript), Python. Frameworks: Express, Fastify, Django, FastAPI. Databases: PostgreSQL (advanced optimization), MongoDB, Redis. Testing: Jest, Mocha, Pytest, Supertest. Deployment: AWS, Docker, Kubernetes.

 

MY DIFFERENTIATORS: Expert in database optimization (complex queries, indexing, scaling). Built APIs handling 100k+ daily requests. Security-first approach (injection prevention, rate limiting, input validation). Performance obsessed (monitoring, optimization, benchmarks). Type-safe development (TypeScript everywhere). Comprehensive testing. Auto-generated API documentation.

 

IDEAL FOR: New API development from scratch, Scaling existing APIs, Database optimization, Microservices architecture, Mobile app backends, Marketplace/platform backends, Data-intensive applications.

Skills & Expertise

Amazon Web ServicesAPI DevelopmentApp DevelopmentArtificial IntelligenceBack End DevelopmentChatbotsJavaScriptJSONNext.jsNode.jsObject-Oriented ProgrammingPostgreSQLProgrammingPythonSoftware DevelopmentSoftware Testing

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