MD Khalilul Rahman

Jamshedpur, IN.

About

I am a passionate and driven Computer Science B.Tech graduate from the Indian Institute of Information Technology Vadodara, with a strong foundation in backend development and system design. With hands-on experience as a Junior Backend Developer at Alcinius and a Backend Intern at DigitalXcode, I have honed my skills in building scalable microservices, optimizing RESTful APIs, and implementing CI/CD pipelines using modern tools like Docker, AWS, and GitHub Actions. My projects, such as BookNest and an Online Food Delivery Backend, demonstrate my ability to deliver efficient, secure, and user-focused solutions, achieving significant performance improvements and seamless team collaboration. Proficient in JavaScript, TypeScript, C++, and SQL, I am committed to solving complex problems and contributing to innovative, high-impact software solutions.

Work

Alcinius

|

Junior Backend Developer

Summary

Designed and deployed containerized microservices architecture using Docker optimizing infrastructure for a large-scale esports platform, Achieved 60% reduction in deployment time Maintained RESTful APIs for Authentication, Game Management, and Admin Dashboard Implemented CI/CD pipelines using custom shell scripts and GitHub Actions,and deployed production builds on AWS EC2 instance and created comprehensive API documentation using Swagger Ul Collaborated with cross-functional frontend teams, increasing development efficiency by30% and reducing integration issues

DigitalXcode

|

Backend Intern

Summary

Developed Express.js and MongoDB backend processing 1000+ daily emails via AWS EC2 and S3 Implemented JWT authentication system for 500+ active users, boosting security and access control Configured DNS domain records (MX/SPF/DKIM/DMARC), ensuring 99% email security compliance

Education

Indian Institute of Information Technology Vadodara ICD

B.Tech Computer Science and Engineering Grade: 7.2/10.0

Awards

GeeksforGeeks

Solved 350+ problems on GeeksforGeeks with a total score of more 1200

LeetCode

Solved around 350 problems on LeetCode, earning 3 badges: 100 Days Badge and two 50 Days Badges

Skills

Languages

JavaScript, TypeScript, C++, Go, SQL, HTML/CSS.

Frameworks & Tools

Node.js, Express.js, React.js, Next.js, MongoDB, PostgreSQL, MySQL, Redis.

DevOps & Cloud Platforms

Docker, GitHub Actions (CI/CD), AWS EC2, S3, Swagger Ul.

Projects

BookNest - Online Book Hub

Summary

Developed a complete online book hub backend using Node.js, TypeScript, Express.js, and integrated fea- tures like book issue/return, fine payments, and user/admin workflows. Implemented JWT authentication, OTP verification, and Redis caching, improving performance and re- sponse speed by 40%. Coordinated with the frontend (Next.js) to reduce integration bugs by 30% and enhance UX performance Used Docker to containerize the application, improving deployment reliability and consistency by 50%.

Online Food Delivery Backend

Summary

Designed backend for handling 5+ distinct modules (Vendor, Admin, Shopping, Customer, Delivery). Implemented secure user management and order updates using Node.js, Express.js, JWT, and MongoDB. Integrated Twilio for OTP-based communication, improving user verification speed by 50%. Enhanced image loading efficiency with Cloudinary for optimized storage and Multer for streamlined file uploads, reducing load times by 30%.