Md.Khairozzaman

Go Backend Developer

Self Employed • Autônomo

Jun 2026 - Present • 2 mos

As a Go (Golang) Backend Developer, I have gained hands-on experience by designing and developing scalable backend systems through real-world portfolio projects. My focus is on building secure, maintainable, and high-performance backend applications that follow modern software engineering principles and industry best practices. One of my key projects is a Job Portal Backend System, where I developed a complete RESTful backend using Go (Golang), PostgreSQL, SQLx, and Clean Architecture. The system includes secure JWT authentication, role-based access control (Admin, Employer, and Job Seeker), user management, job posting and application management, middleware, request validation, pagination, rate limiting, and optimized database queries. I also developed an E-commerce Backend API that provides secure user authentication, product management, CRUD operations, database integration, request validation, centralized error handling, pagination, and production-ready REST APIs. The project was designed with scalability, security, and maintainability in mind using a clean and modular architecture. Throughout my development journey, I have worked extensively with Go (Golang), PostgreSQL, SQLx, JWT Authentication, bcrypt, REST APIs, Git, Postman, and Clean Architecture. I prioritize writing clean, reusable, and well-documented code while ensuring backend performance, security, and reliability. I enjoy solving backend challenges, optimizing API performance, and building scalable backend solutions for SaaS platforms, e-commerce systems, job portals, business applications, and custom web services. My goal is to deliver robust backend systems that are easy to maintain, secure by design, and ready for real-world production use.