July 2018 - June 2022
Bachelor of Technology — Information Technology
Abdul Kalam Technical University, Lucknow, Uttar Pradesh
constcoder={name:'Suraj Kumar Singh',skills:['Node.js', 'Express', 'Next.js', 'Python', 'FastAPI', 'Docker', 'Kafka', 'AWS', 'PostgreSQL'],hardWorker:true,quickLearner:true,problemSolver:true,};ABOUT ME
Who am I?
Hey there, I'm Suraj Kumar Singh! A Software Engineer with 4+ years of experience building scalable, production-grade web applications using Node.js, NestJS, Next.js, TypeScript, and React.js. I have a proven track record of architecting secure integrations — from QR-based anti-counterfeiting systems and payment gateways to government-compliant identity verification.
I'm experienced in distributed systems, event-driven architecture (Kafka), containerization (Docker/Kubernetes), and cloud deployments (AWS). Passionate about clean APIs, high-performance databases, and delivering measurable business outcomes. I've also solved 300+ problems on LeetCode, HackerRank, and GeeksforGeeks. Currently based in Noida, India and open to exciting opportunities!
EXPERIENCE
QRiousCodes (A Control Print Limited Company)
constjob={myRole:Software Engineer,duration:(July 2025 - Present),tools: ['Node.js', 'NestJS', 'Next.js', 'TypeScript', 'MSSQL', 'MongoDB', 'Docker', 'Kubernetes', 'Apache Kafka', 'AWS],Description: Architected an end-to-end pharmaceutical anti-counterfeiting platform for Sun Pharma with 99%+ AI accuracy. Built a GS1-compliant QR code tracking system processing 5,00,000+ scan events/month. Designed stateless NestJS microservices on Kubernetes achieving 3× traffic spike resilience. Implemented an Apache Kafka-driven pipeline for real-time QR scan events with sub-second latency.};
Think Exam
constjob={myRole:Software Engineer,duration:(April 2022 - July 2025),tools: ['Node.js', 'Express.js', 'React.js', 'TypeScript', 'MySQL', 'MongoDB', 'Redis', 'Docker', 'SendGrid', 'Razorpay],Description: Spearheaded full-stack development of an On-Screen Marking system enabling 3,00,000+ monthly evaluations with 98% accuracy, reducing turnaround by 40%. Integrated Razorpay with 99.5% transaction success rate. Implemented Aadhaar-based identity verification and architected a queue-backed SendGrid pipeline reducing email latency by 50%. Optimized MySQL queries cutting P95 API response from ~1.2s to under 400ms.};Skills
PROJECTS
Pitter — Full-Stack Social Media Platform
constproject={name:'Pitter — Full-Stack Social Media Platform',tools: ['Next.js', 'ShadCN UI', 'PostgreSQL', 'AWS S3', 'Vercel', 'Tailwind CSS],Description: Built a full-stack social media platform with Next.js, ShadCN, and PostgreSQL. Features photo posts stored on AWS S3, follow/like/comment system, real-time notifications, and a fully responsive light/dark mode UI. Deployed on Vercel for production-grade availability.};Real-Time Chat Application
constproject={name:'Real-Time Chat Application',tools: ['Node.js', 'Express.js', 'Socket.io', 'MongoDB', 'React.js', 'WebSockets],Description: Developed a real-time chat application using WebSocket (Socket.io) with user authentication, online presence tracking, and instant messaging. Backend built on Node.js/Express.js with MongoDB; frontend in React.js for a seamless live messaging experience.};Lecture Hall Booking System — IIT Kanpur
constproject={name:'Lecture Hall Booking System — IIT Kanpur',tools: ['Node.js', 'React.js', 'MySQL', 'RESTful APIs', 'Email Automation],Description: Designed and built a full-stack booking platform for IIT Kanpur's Civil Engineering Department. Includes role-based admin/user panels, hall management, booking approval workflows, and automated email confirmations — streamlining the entire room reservation process.};
Education