Harsh Gaur
Frontend / Full Stack Developer - React.js | Next.js | MERN Stack
Frontend Developer, Full Stack Developer, MERN Stack, React.js, Next.js, JavaScript Developer, SEO Optimization, Tailwind CSS, Zustand, TypeScript, Node.js, Express.js, Prisma, PostgreSQL, MongoDB, WebSockets, Razorpay, OpenAI, SSR, CSR, SaaS Development, UI Performance, AgileSummary
Frontend-focused Full Stack Developer with 2+ years of hands-on experience building scalable, high-performing SaaS and AI-powered platforms using Next.js, React.js, and the MERN stack. Skilled in UI development, performance optimization, and building accessible, maintainable interfaces. Also experienced in guiding and mentoring two frontend interns.
Experience
Frontend Developer - Prabhubhakti (Spiritual SaaS Platform)
Jun 2025 - Present | Gurugram
- Built Prabhubhakti's landing and SaaS website using Next.js, Tailwind CSS, and Framer Motion, achieving 95+ SEO scores and a 40% increase in organic traffic.
- Contributed to a multi-tenant SaaS platform with domain/subdomain routing, wallet system, and Razorpay integration.
- Launched 2 astrologer storefronts (astrodrpc.com, divinetwinsoul.com) within 2 months, reducing onboarding time by 70%.
Freelance Frontend Developer - Kalpi Capital
May 2025 - jun 2025 | Freelance
- Delivered a full-featured, SEO-first landing page from scratch using Next.js, ShadCN, Tailwind CSS, and @next/third-parties.
- Boosted Lighthouse SEO score from 68 to 97 and significantly improved Core Web Vitals.
Frontend Developer SDE - Metis Eduventures Pvt. Ltd (Adda247)
Aug 2024 - Feb 2025 | Gurugram
- Built and optimized 5+ AI chatbot features using React.js, Zustand, and OpenAI APIs, automating over 30% of repetitive customer support interactions.
- Improved initial page load speed by 25% by optimizing bundle size, implementing lazy loading, and tree-shaking.
- Participated in sprint planning, pull requests, and QA cycles in an Agile environment.
Frontend Developer - ItaxEasy
Oct 2023 - May 2024 | Remote
- Revamped UI of a legacy tax-filing platform using React.js and Tailwind CSS, reducing bounce rates by 22% and improving session time by 17%.
- Introduced route-based lazy loading, resulting in 18% faster time-to-interactive.
Projects
SupportDesk - AI-Powered Customer Support Tool
Tech Stack: React.js, Zustand, Flask, OpenAI API, WebSockets
- Built an internal AI-assisted dashboard that eliminated the need for a third-party support tool, saving ₹2L+/year.
- Integrated real-time chat fallback logic and multi-step scripted bot responses via WebSocket channels.
AiDoubtSolver - EdTech Voice Chatbot
Tech Stack: React.js, SSE, Whisper API, Markdown
- Developed a real-time AI chatbot that supports voice input/output via OpenAI Whisper and renders Markdown responses for clarity.
- Handled 150+ concurrent student sessions during internal testing with >99.9% uptime.
Technical Skills
- frontend: React.js, Next.js, TypeScript, JavaScript (ES6+), Zustand, Redux, Tailwind CSS, ShadCN, Framer Motion, HTML5, CSS3
- backend: Node.js, Express.js, Flask, REST APIs, GraphQL, WebSockets, JWT
- databases: MongoDB, PostgreSQL, Prisma, Redis
- tools: Git, GitHub, Vite, Webpack, Postman, Docker (basic)
- testing: vitest, Jest, React Testing Library
- integrations: Razorpay, OpenAI, Whisper, @next/third-parties
- architecture: Multi-Tenant SaaS, SSR, CSR, Domain Routing, Wallet Systems
Education
Master of Computer Applications, Indra Gandhi National Open University (IGNOU)
2025 - presentBachelor of Arts - English Honours, Prof. Rajendra Singh University
2020 - 2023
Certifications and Training
- Web Development Certification - MyCodeLearning (2023)