I specialize in building robust, scalable, and secure backend systems and APIs using NestJS and Node.js. With extensive experience architecting complex server-side systems for marketplaces, SaaS platforms, and enterprise applications, I help businesses build a solid technical foundation that can handle real-world scale, complex business logic, and high transaction volumes.
What I Offer:
🔹 RESTful API Development - Well-structured, documented, and versioned APIs built following industry best practices and standards.
🔹 Scalable Backend Architecture - Modular, maintainable backend systems designed using NestJS's architecture principles, supporting long-term scalability.
🔹 Database Design & Integration - Efficient schema design and integration with PostgreSQL, MySQL, and MongoDB using TypeORM and Mongoose.
🔹 Authentication & Authorization - Secure systems using JWT, Keycloak, OAuth, and role-based access control (RBAC) for multi-user, multi-role applications.
🔹 Payment System Integration - Backend logic for payment processing using Stripe, including subscriptions, multi-party payments, and flexible billing cycles.
🔹 Microservices Architecture - Distributed, message-driven systems using RabbitMQ for high-volume processing and inter-service communication.
🔹 Real-Time Backend Systems - WebSocket and Socket.io implementation for live data updates and real-time notifications.
🔹 Background Jobs & Task Scheduling - Automated workflows, scheduled tasks, and background processing for operational efficiency.
🔹 Third-Party Integrations - Seamless integration of external services such as Twilio, SendGrid, AWS S3, and OpenAI APIs.
My Process:
1. Requirement Gathering - Understanding your data flow, business logic, and system requirements in detail.
2. System Design - Planning database schema, API structure, and overall backend architecture before writing code.
3. Development - Building clean, modular, and well-tested backend code with proper documentation.
4. Testing - Unit and integration testing to ensure reliability and catch edge cases early.
5. Deployment & Handover - Deploying to your preferred cloud environment with clear documentation for your team.
Why Work With Me:
✅ Deep, hands-on experience architecting backend systems for real production platforms handling complex business logic
✅ Strong understanding of scalability, security, and performance best practices
✅ Experience building payment systems, multi-tenant architecture, and high-volume processing systems
✅ Clean, well-documented code that's easy for other developers to maintain
✅ Reliable communinestcation and realistic timelines
If you need a solid backend foundation for your application, help scaling an existing system, or a technical partner to design and build your APIs from scratch, I'm ready to help you build a backend that performs reliably as your business grows.