Raafae Yousaf Rehman

Professional Bio

Raafae Yousaf Rehman is the co-founder & full-stack engineer at coWhile. He specializes in designing robust backend systems, scalable server architectures, high-performance database schemas, and RESTful APIs, combined with modern frontend interfaces. From backend API design and authentication pipelines to database optimization and frontend integration, Raafae leads end-to-end product engineering for startups and growing platforms.

Experience

• Technical Co-founder & Full-Stack / Backend Engineer at coWhile
• Architects scalable backend services, RESTful APIs, and database architecture (Node.js, Express, PostgreSQL, MongoDB)
• Engineers end-to-end full-stack web applications, authentication flows, and microservice integrations
• Partners with startups on backend performance tuning, API security, and seamless frontend-backend delivery

Skills

• Full-stack software engineering
• Backend system architecture & API design
• Database modeling (PostgreSQL, MongoDB, SQL)
• Server-side logic & Node.js/Express development
• Frontend & UI integration (React, TypeScript)
• AI API & microservices integration

Technologies

• Node.js
• Express.js
• TypeScript
• React
• PostgreSQL
• MongoDB
• REST APIs
• GraphQL
• Docker
• Vite
• GitHub Actions

Projects

• Scalable backend API services and database architectures for SaaS platforms
• End-to-end full-stack web applications with complex server-side workflows
• Secure authentication systems, webhooks, and third-party API integrations
• AI-enabled web applications with real-time backend data pipelines

Achievements

• Built and deployed high-concurrency backend services with robust data integrity and low latency
• Designed seamless full-stack architectures balancing server efficiency with exceptional UX