// Hello, world
Harsh Gaur
I'm a passionate Full-Stack Developer specializing in Java, JavaScript, and Next.js, building modern, scalable, high-performance applications with robust backend architecture and seamless frontend experiences. I ensure production-ready deployments through strong DevOps and cloud practices while integrating AI-powered solutions and intelligent automation to create smarter, future-ready products that drive real business impact.
// what I've built
Featured Projects
Cybergyan
⚡ Full StackE-Lab Portal CyberGyan, a flagship initiative of C-DAC, offers a cutting-edge virtual training facility for aspiring cybersecurity professionals with a simulated environment to defend against real-world threats.
Evovle360 AI Health Assessment
🤖 AI IntegrationAI-powered personalised health assessment platform for Evovle 360°. Users complete a risk questionnaire; a fine-tuned LLM analyses responses, generates a health score, flags priority concerns, and recommends supplement combos and diagnostic test packages — all delivered as a branded downloadable PDF report.
RSVP Application
⚡ Full StackDesigned for sending invitations and receiving real-time confirmations, ensuring seamless check-ins. Automates attendee tracking and responses for efficient event management.
Analytics Tool
⚙️ BackendREST APIs with authentication and authorization to fetch data per client requirements with optimized speed. Ensures secure and efficient data access while maintaining high performance.
AI Integration Platform
🤖 AI IntegrationBuilt an AI-powered platform integrating LLM APIs to automate content generation, smart search, and data summarization. Features real-time streaming responses and context-aware conversations.
Mobile Puzzle Game for Events
📱 Mobile Game ApplicationInteractive cross-platform mobile puzzle game designed for events and brand activations. Features real-time leaderboards, reward-based challenges, multiplayer participation, QR-based event entry, and live analytics for engagement tracking.
Web Entertainment Game
⚙️ BackendReal-time betting game where users can place and cancel bets instantly. Admins monitor live bets using WebSocket connectivity for real-time updates and analytics.
Websites
⚡ Full StackDesigned, developed, and maintained production websites for multiple businesses — ensuring performance, SEO, and seamless UX across all platforms. Projects include Harmony Creative, AdGlint, TFC Events, Kalanidhi Creations, Infruit Events, and Stone World Noida.
AI Chatbot SDK
🤖 AI IntegrationDeveloped a pluggable chatbot SDK with NLP capabilities for businesses to embed intelligent assistants into their platforms. Supports multi-turn conversations and custom training.
Portfolio Website
🎨 FrontendPersonal portfolio showcasing work, skills, and experience. Built with modern design principles, smooth animations, and optimized performance.
// what I know
Skills & Expertise
Languages & Databases
- Java
- Python
- JavaScript
- Node.js
- HTML5
- MySQL
- PostgreSQL
- MongoDB
Frameworks & Libraries
- Spring Boot
- Spring Security
- Spring MVC
- Spring JPA
- Hibernate
- WebSocket
- Microservices
- Apache Tomcat
- React.js
- Next.js
- MERN Stack
Developer Tools
- VS Code
- IntelliJ
- STS
- Postman
- BurpSuite
- PuTTY
- Jupyter
- Apache Kafka
- Git
- GitHub
CS Fundamentals
- OOP
- DSA
- Linux
- HLD
- LLD
- Agile
- REST APIs
- CI/CD
// production experience in
// where I've worked
Work Experience
Operations Developer
Full-timeELGUEST FINTECH PRIVATE LIMITED·Jul 2026 – Oct 2026
- Worked on a FinTech payment platform supporting payout and pay-in operations, transaction processing, reconciliation, and production workflows.
- Integrated and maintained payout/pay-in APIs including transaction initiation, status checks, webhooks, and third-party payment provider integrations.
- Built reconciliation and reporting solutions using Node.js, REST APIs, MySQL, and SQL.
- Optimized merchant payout queries and database indexing for high-volume transaction data.
- Handled production issues, pending transactions, settlement mismatches, and provider status reconciliation.
Project Engineer
Full-timeC-DAC·Sept 2024 – Jul 2026
- Building MIS using Next.js & Spring Boot for streamlined data management.
- Leading migration of FSP Prime from Spring Framework → Spring Boot.
- Spearheaded analytics dashboard with JWT-based auth & React frontend.
- MongoDB for efficient data storage; real-time frontend–backend communication.
- Cross-functional collaboration to design user-friendly, secure features.
Project Associate
Full-timeC-DAC·Sept 2022 – Sept 2024
- Built & maintained CyberGyan E-Lab Portal — C-DAC's flagship cybersecurity platform.
- Designed RESTful APIs for dynamic VM cloning, creation & secure access.
- End-to-end Apache Tomcat management: deployment, config & maintenance.
- Implemented industry-standard auth/authorization for VM environment security.
- Delivered high-quality projects independently and within cross-functional teams.
Project Associate – Internship
InternshipC-DAC·Feb 2022 – Sept 2022
- Built a basic cybersecurity lab using Spring Boot REST APIs.
- Developed dynamic UI components with React & Tailwind CSS.
- Implemented MongoDB for efficient data storage and retrieval.
- Created practical learning environments for cybersecurity exercises.
Software Developer
Full-timeTFC Events·2018 – 2022
- Built responsive websites with focus on UX and performance.
- Integrated third-party APIs to enhance business functionality.
- Contributed to open-source projects and scalable web applications.
- Delivered maintainable solutions in cross-functional team environments.
// get in touch
Let's Connect
// open to opportunities
Have a project
in mind?
Your ideas, my implementation. Let's build something amazing together and create the future.
Send me an email© 2026 Harsh Gaur · Built with Next.js & Tailwind CSS
Made with ♥ in India