Yaman Raj Singh yamanrajsingh

🚀 Software Development Engineer with hands-on experience designing scalable backend applications using Java, Spring Boot, Spring Security, REST APIs, Hibernate, SQL, Redis, Docker, and AWS. I build secure APIs, optimize database performance, implement authentication systems, and ship enterprise-grade applications in Agile environments.

I'm a social, curious person who loves taking on new challenges, meeting new people, exchanging ideas, and spreading positivity. Always looking to write clean, maintainable code and solve complex backend engineering problems.

🧑‍💻 About Me

🌍 I'm from Aligarh, India
💼 Currently working as SDE-I @ Diginique TechLabs, building REST APIs for LMS, training platforms & internal tools
☕ I specialize in Java, Spring Boot, Spring Security & Microservices
📈 Reduced average API response time by 35% through query optimization, pagination & indexing
🏗️ Achieved 99.9% application availability by monitoring & optimizing production services
🌱 Currently sharpening System Design, Apache Kafka, DSA & Cloud (AWS)
👯 Looking to collaborate on Open Source Backend Projects
🤔 Looking for help/collab on scalable backend systems
⚡ Fun fact: "Don't stop until you are proud."
💬 Ask me anything — happy to help!
📫 Reach me at yamanrajsingh07@gmail.com | 📱 +91 8445899130
👨‍💻 Portfolio: yamanrajsingh.github.io/Portfolio

💼 Professional Experience

🏢 Diginique TechLabs

Software Development Engineer-I
Aug 2025 – Present | Remote, India

Designed & built REST APIs for LMS, training platforms & internal tools
Optimized backend modules, reducing API response time by 35% via query optimization, pagination & indexing
Implemented Redis caching to cut DB load and speed up frequent API calls
Achieved 99.9% application availability through performance monitoring & issue resolution
Containerized apps with Docker and contributed to CI/CD workflows

🏢 Tata Consultancy Services

Systems Engineer
Jan 2025 – Aug 2025 | New Delhi, India

Developed & maintained enterprise Java apps using Spring Boot, SQL & REST APIs in Agile teams
Collaborated with senior engineers on backend enhancements & defect resolution
Handled debugging, testing, deployment validation & code reviews
Streamlined delivery using Git, Maven & CI/CD pipelines

🚀 Featured Projects

🔗 SnapLink — URL Shortener

Jul 2026

Scalable URL Shortener with Base62 encoding, JWT auth, and role-based authorization via Spring Security. RESTful APIs for shortening, redirection, custom aliases, click tracking & link expiration, backed by Redis caching for fast redirects.

Java Spring Boot Spring Security JWT Hibernate PostgreSQL Redis Docker

🏫 School Administration Portal

Oct 2025 – Nov 2025

Full-stack portal serving 1,000+ students & 100+ staff with 5+ academic/admin modules, secure role-based auth, and real-time fee & payroll dashboards. Optimized queries improved data retrieval by 25% and cut manual reporting effort by 60%.

Java Spring Boot Spring Security PostgreSQL Next.js Maven

🏆 Achievements & Certifications

🥉 3rd Rank — Computer Society of Software Engineers (CSSE) coding contest
🧩 700+ problems solved on LeetCode, GeeksforGeeks & HackerRank
⭐ HackerRank Badges: 6★ DSA · 5★ C++ · 4★ SQL
🎓 Master of Computer Applications — Madan Mohan Malaviya University of Technology, Gorakhpur (CGPA: 8.79/10)
📜 Certified: Software Engineer Intern (HackerRank) · Java for Beginners (Udemy) · JavaScript (Basic) · Golang · Problem Solving (HackerRank) · Career Essentials in Software Development (Microsoft & LinkedIn)

🌐 Connect with Me

🛠️ Technical Skills

Languages

Backend

Frontend

Databases

Cloud, DevOps & Messaging

Testing & Tools

📊 GitHub Stats

🧩 Coding Profiles

LeetCode

HackerRank

Navigation Menu