Mehtab is an experienced backend developer specializing in Node.js and Hapi.js framework development. With extensive expertise in building secure, scalable APIs and real-time systems, Mehtab has successfully delivered numerous projects for clients across various industries. The portfolio showcases expertise in PostgreSQL and RethinkDB database management, implementing robust security measures including JWT authentication and CSRF protection, and optimizing system performance for high-traffic applications.
As a backend engineer, Mehtab focuses on creating robust server-side applications using Node.js ecosystem technologies. The development approach emphasizes security, scalability, and clean architecture principles. Expertise includes RESTful API design, GraphQL implementation, WebSocket development for real-time features, and microservices architecture. Mehtab has extensive experience with Hapi.js framework, known for its configuration-centric approach and built-in security features, making it ideal for enterprise-grade applications.
Database design and optimization form a core part of Mehtab's skill set. With expert-level proficiency in PostgreSQL, Mehtab designs normalized schemas that efficiently handle complex relationships while maintaining query performance. Experience with RethinkDB provides expertise in NoSQL database solutions for real-time applications. Database optimization includes query tuning, index strategy implementation, connection pooling, and caching mechanisms using Redis. These skills ensure applications can handle high traffic loads while maintaining fast response times.
Security is fundamental to every system Mehtab builds. Implementation includes comprehensive authentication and authorization systems using JWT tokens with refresh token rotation. CSRF protection is implemented using token-based validation and SameSite cookie attributes. Input validation and sanitization prevent SQL injection and XSS attacks. Rate limiting and DDoS protection strategies protect API endpoints from abuse. Security audits identify and eliminate vulnerabilities, ensuring robust protection against common threats.
Real-time system development represents another area of expertise. Mehtab has built game servers using Godot Engine with WebSocket connections, implementing client-side prediction, server reconciliation, and lag compensation techniques. These systems maintain smooth gameplay even with network latency, supporting multiple concurrent players. Real-time features extend beyond gaming to include live collaboration tools, instant messaging systems, and live data dashboards that push updates to connected clients.
Performance optimization is a continuous focus throughout development. Mehtab implements database query optimization strategies, reducing response times significantly. Caching implementations using Redis improve application performance by reducing database load. Code profiling identifies bottlenecks, and architectural improvements ensure systems scale efficiently. These optimizations have resulted in measurable improvements, with some projects achieving 70% reduction in API response times.
Legacy system modernization is another specialty. Mehtab has successfully migrated multiple legacy applications to modern frameworks while maintaining zero downtime. These migrations improve maintainability, performance, and security while preserving existing functionality. The modernization process includes code refactoring, architecture improvements, security hardening, and performance optimization. Clients benefit from modern development practices without disrupting business operations.
With professional experience spanning multiple years, Mehtab has worked as a Senior Backend Developer on freelance and contract basis, architecting secure API gateways and designing database schemas for high-throughput applications. Previous experience includes Full Stack Developer role at Tech Solutions Inc., leading migration of legacy e-commerce platforms and implementing centralized authentication systems. This diverse experience provides comprehensive understanding of backend development challenges and solutions.
Technical expertise encompasses Node.js ecosystem including Express and Hapi.js frameworks. Database technologies include PostgreSQL for relational data, RethinkDB for real-time applications, and Redis for caching and session management. Security implementation includes JWT authentication, OAuth2 flows, CSRF protection, and input sanitization. Additional skills include Git version control, Linux server administration, Docker containerization, and game development with Godot Engine. Continuous learning ensures staying current with latest technologies and best practices.
The portfolio includes diverse projects showcasing backend development expertise. Xera project involved modernizing legacy PHP application, resulting in 40% faster load times and elimination of security vulnerabilities. AuthHive centralized authentication microservice handles 10,000+ concurrent users with seamless SSO capabilities. Slither Clone multiplayer game demonstrates real-time networking expertise with smooth gameplay at 150ms latency. Bangopure Market e-commerce platform supports 50+ vendors with automated payment processing. These projects demonstrate ability to deliver scalable, secure, and performant backend systems.
Development philosophy emphasizes problem-solving first, understanding challenges deeply before proposing solutions. Quality over speed ensures well-structured, tested, and documented code that saves time long-term. Security by design integrates security considerations into architecture from day one. Continuous learning keeps skills current with latest technologies and best practices. This approach ensures delivery of solutions that truly address business challenges while maintaining high standards for security, performance, and maintainability.
Services offered include backend architecture design, API development and optimization, database schema design and optimization, security implementation and audits, real-time system development, legacy application modernization, performance optimization, and system scalability planning. Mehtab works with clients ranging from startups to established companies, adapting approach to meet specific needs while maintaining high standards for code quality, security, and performance.
For backend development projects, API architecture needs, database optimization requirements, security implementation, or system modernization, Mehtab is available for consultation and project work. The portfolio website provides comprehensive information about expertise, projects, and services. Contact through the website form or email for detailed project discussions and estimates. Response time is typically within 24 hours, ensuring timely communication for project inquiries.
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