Looks like you have JavaScript disabled. For the full Twine experience, you will need to re-enable it.

I’m Mahmudur Rahman Bhuiyan, a full-stack engineer from Sylhet who enjoys building scalable web applications with modern JavaScript and TypeScript. I work across both frontend and backend, creating REST APIs, real-time features with Socket.IO, and reliable authentication flows using JWT and Firebase Auth. I also integrate AI/LLM capabilities into real products—using RAG, embeddings, and LLM APIs to support automation and smarter user experiences. From optimizing React/Next.js performance to deploying with Docker, CI/CD, and cloud tools, I aim to deliver secure, maintainable solutions while collaborating smoothly with remote teams.…I’m Mahmudur Rahman Bhuiyan, a full-stack engineer from Sylhet who enjoys building scalable web applications with modern JavaScript and TypeScript. I work across both frontend and backend, creating REST APIs, real-time features with Socket.IO, and reliable authentication flows using JWT and Firebase Auth. I also integrate AI/LLM capabilities into real products—using RAG, embeddings, and LLM APIs to support automation and smarter user experiences. From optimizing React/Next.js performance to deploying with Docker, CI/CD, and cloud tools, I aim to deliver secure, maintainable solutions while collaborating smoothly with remote teams.

Mahmudur Rahman Bhuiyan

Full Stack Developer, Software Engineer, Back-End Developer, +3





I’m Mahmudur Rahman Bhuiyan, a full-stack engineer from Sylhet who enjoys building scalable web applications with modern JavaScript and TypeScript. I work across both frontend and backend, creating REST APIs, real-time features with Socket.IO, and reliable authentication flows using JWT and Firebase Auth. I also integrate AI/LLM capabilities into real products—using RAG, embeddings, and LLM APIs to support automation and smarter user experiences. From optimizing React/Next.js performance to deploying with Docker, CI/CD, and cloud tools, I aim to deliver secure, maintainable solutions while collaborating smoothly with remote teams.…I’m Mahmudur Rahman Bhuiyan, a full-stack engineer from Sylhet who enjoys building scalable web applications with modern JavaScript and TypeScript. I work across both frontend and backend, creating REST APIs, real-time features with Socket.IO, and reliable authentication flows using JWT and Firebase Auth. I also integrate AI/LLM capabilities into real products—using RAG, embeddings, and LLM APIs to support automation and smarter user experiences. From optimizing React/Next.js performance to deploying with Docker, CI/CD, and cloud tools, I aim to deliver secure, maintainable solutions while collaborating smoothly with remote teams.

Available to hire

I’m Mahmudur Rahman Bhuiyan, a full-stack engineer from Sylhet who enjoys building scalable web applications with modern JavaScript and TypeScript. I work across both frontend and backend, creating REST APIs, real-time features with Socket.IO, and reliable authentication flows using JWT and Firebase Auth.

I also integrate AI/LLM capabilities into real products—using RAG, embeddings, and LLM APIs to support automation and smarter user experiences. From optimizing React/Next.js performance to deploying with Docker, CI/CD, and cloud tools, I aim to deliver secure, maintainable solutions while collaborating smoothly with remote teams.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Language

Work Experience

Software Engineer at SJ Innovation LLC

February 1, 2025 - Present

Developed scalable web applications using React.js, Node.js, and Tailwind CSS. Built and maintained secure REST APIs for healthcare platforms using Node.js and Express, integrating AI/ML services to improve patient workflows and clinic automation. Improved React performance using memoization and efficient component design. Participated in Agile development, code reviews, and CI/CD deployment processes.

Junior Software Engineer at SJ Innovation LLC

January 1, 2024 - January 31, 2025

Built responsive frontend features using React.js and Tailwind CSS. Implemented real-time communication features with Socket.IO. Created secure authentication systems using Firebase Auth and JWT. Integrated AI and LLM-based services into healthcare platforms for real-time assistance, collaborating to maintain clean, reusable code.

Intern Software Engineer at SJ Innovation LLC

September 1, 2023 - December 31, 2023

Assisted in developing reusable React components and frontend features. Collaborated with senior engineers to improve component reusability and maintainable code, gaining practical experience in production-oriented software development workflows.