About
Experience
Building and scaling AI-integrated web applications with React.js, Next.js, TypeScript, Node.js, and PostgreSQL. Delivered 40% faster APIs, Core Web Vitals in the 90th+ percentile, and 35–45% page-load improvements across production systems.
Impact
Real numbers from real production work — measurable outcomes delivered across full-stack projects.
Faster API Responses
via caching layers & query optimization
Page-Load Time Reduction
Core Web Vitals in the 90th+ percentile
Monthly Transactions Handled
on coaching & e-commerce platforms
AI Models Integrated
Gemini VTO, LangChain RAG, internal pipelines
Production Projects Shipped
across SaaS, e-commerce & edtech verticals
Professional Experience
building & scaling full-stack web apps
Skills
Proficient in leveraging modern web technologies to create responsive, scalable, and intuitive platforms, with expertise in full-stack engineering, cloud deployments, and AI model integrations.
JavaScript
TypeScript
C++
React.js
Next.js
Redux
Tailwind CSS
Node.js
Express.js
Prisma
PostgreSQL
MySQL
MongoDB
Redis
AWS
Docker
Git
Firebase
Postman
Figma
Resume
Summary
Keshav Sandhu
Full-Stack Engineer with 2+ years of experience building and scaling AI-integrated web applications using React.js, Next.js, TypeScript, Node.js, Express.js, and PostgreSQL.
- Noida, Uttar Pradesh
- +91 93061 96592
- keshavsandhu.me@gmail.com
Education
B.Tech – Computer Science & Engineering
2019 - 2023
UIET, Kurukshetra University, Kurukshetra
Certifications & Achievements
Certifications
IIT Bombay (IITX)
- Object-Oriented Programming (OOP)
- Data Structures and Algorithms (DSA)
Achievements
Cleared Round 1 among 15 teams by building a mental wellness screening platform with analytics-driven insights.
Work Experience
Software Engineer
11/2025 - Present
Scala Code Global Pvt. Ltd., Noida
- Architected a multi-tenant admin system with RBAC to onboard and manage multiple retailers.
- Integrated Gemini VTO and internal AI pipelines with configurable model switching for virtual try-on.
- Optimized backend APIs and database queries using caching and indexing, reducing response latency by ~35%.
- Developed Firebase-based authentication with social login and built analytics dashboards to track user behavior.
Full Stack Web Developer
02/2024 - 10/2025
VDoIT Technologies Ltd., Gurugram
- Developed Twin Protocol, an AI-powered platform with Next.js, Node.js, and LangChain for PDF-based RAG query responses.
- Improved API performance with caching layers, reducing response time by 40%, and integrated Stripe payments.
- Built Incantio, a scalable music collaboration platform using Next.js, supporting 50+ active users with real-time UI interactions.
- Optimized PostgreSQL queries, improving page load speed by 35% across the platforms.
Full Stack Web Developer
10/2023 - 12/2023
Own Technologies
- Led end-to-end development of a coaching platform supporting 20+ courses and handling 500+ monthly transactions.
- Integrated Razorpay payment gateway for secure transaction processing, contributing to a 25% increase in revenue.
- Built scalable frontend and backend workflows, improving user engagement by 30% through smooth CSS animations.
Projects
A selection of real-world projects built with modern full-stack technologies — from AI-powered platforms to scalable web apps.
- All
- React.js
- Next.js
- Tailwind
- Node.js
- Firebase
7 Projects
Services
End-to-end engineering — from pixel-perfect UIs to production-grade backends and AI integrations. Here's what I bring to your project.
Full-Stack Web Development
End-to-end product delivery — responsive React/Next.js frontends wired to Node.js + PostgreSQL backends, deployed and production-ready.
AI & LLM Integration
Embed intelligent features into your product — RAG pipelines, LangChain agents, Gemini/OpenAI APIs, and custom AI workflows.
Performance Optimisation
Audit and fix Core Web Vitals, implement caching strategies, query optimisation, and lazy-loading to hit 90th+ percentile scores.
SaaS & E-Commerce Platforms
Build scalable multi-tenant SaaS products or e-commerce sites with payment integration, role-based access, and analytics dashboards.
Cloud Deployment & DevOps
Set up CI/CD pipelines, containerise with Docker, and deploy to AWS or Vercel with environment configs, monitoring, and rollback strategies.
API Design & Integration
Design clean RESTful or GraphQL APIs, integrate third-party services, and write robust documentation — built for reliability and scale.
Testimonials
What clients and collaborators say about working with me — real feedback from real projects.
Lakshya Tyagi
Founder, Program Warehouse
“Working with Keshav has been a game-changer. Their technical expertise and dedication to delivering high-quality results set them apart. I highly recommend their services.”
Project: Program Warehouse PlatformPawan Yadav
Founder, OwnTechnologies
“I've had the pleasure of collaborating with Keshav on multiple projects. Their reliability, commitment, and results-driven approach make them an invaluable asset. Exceptional work, every time.”
Project: EduAct Coaching PlatformMr. Ajith
Freelancer & Startup Consultant
“Keshav brings a unique blend of innovation and collaboration to every project. Their ability to translate ideas into reality is impressive. A true professional who ensures success.”
Project: IELTS Guroo PlatformA. Chitranjan
Owner, Puppy-tails
“Keshav has a remarkable talent for elevating digital experiences. Their attention to detail and commitment to user-centric design make them a standout professional. A pleasure to work with.”
Project: Puppy-tails E-commerceContact
Have a project in mind or just want to talk tech? I'm always open to new opportunities and collaborations. Drop a message and I'll get back within 24 hours.
Location
Noida, Uttar Pradesh, India