Lovepreet Singh.

Full-stack engineer from India. Frontend by craft, backend by instinct.
I build things that are fast, ship things that scale, and keep them online.

Currently: SDE at Snapdeal, building micro-frontends for 10M+ users.

Software Development Engineer
Jul 2025 — Present
Snapdeal | AceVector Group · Gurugram, India
  • Built a Next.js micro-frontend homepage migrating legacy JSP/Java pages — improved Lighthouse performance from 65 to 90 (+35%), with better SEO and long-term maintainability.
  • Implemented end-to-end homepage purchase flow (Add-to-Cart, Cart/Login modals, Razorpay checkout) on a single page to reduce friction and improve user experience.
  • Refactored monolithic post-order flow (70K LOC, 700KB bundle) into dynamic route-level code-split modules (7K LOC, 200KB/page) with lazy loading, reducing load times by 30%.
Next.jsTypeScriptReactNode.jsRazorpay

Software Developer Intern
Jan 2025 — Jun 2025
Snapdeal | AceVector Group · Gurugram, India
  • Achieved 10% page load improvement by eliminating redundant API calls, implementing lazy loading and resource prefetching, and refactoring legacy JSP codebase.
  • Developed reusable auto-suggestion search component with debouncing optimization and seamless REST API integration, reducing server load and improving search response times.
  • Diagnosed and resolved critical production bugs across applications, maintaining platform stability and positive user experience.
Next.jsJavaScriptJSP

Software Development Engineer Intern
Aug 2024 — Sep 2024
AiLabs10X · Jaipur, India
  • Architected and deployed end-to-end full-stack application from concept to production with low-level design documentation and scalable system architecture.
  • Developed responsive frontend with React, Redux, and Tailwind CSS; engineered backend with Python, FastAPI, PostgreSQL, and SQLAlchemy ORM.
  • Implemented microservices with Docker deployed on AWS (EC2, S3, SQS) for scalable distributed system design.
ReactReduxPythonFastAPIPostgreSQLDockerAWS

Photo coming soon


Experience

Where I've worked

S
Snapdeal | AceVector GroupCurrent
Software Development Engineer
Jul 2025 — Present · Gurugram, India

  • Built a Next.js micro-frontend homepage migrating legacy JSP/Java pages — improved Lighthouse performance from 65 to 90 (+35%), with better SEO and long-term maintainability.
  • Implemented end-to-end homepage purchase flow (Add-to-Cart, Cart/Login modals, Razorpay checkout) on a single page to reduce friction and improve user experience.
  • Refactored monolithic post-order flow (70K LOC, 700KB bundle) into dynamic route-level code-split modules (7K LOC, 200KB/page) with lazy loading, reducing load times by 30%.
  • Engineered production Next.js/TypeScript chatbot with Voice-to-Text (Web Speech API), multimedia support, and SDBridge for WebView-Native synchronization with robust session management.

Stack

Next.jsTypeScriptReactNode.jsRazorpay
S
Snapdeal | AceVector Group
Software Developer Intern
Jan 2025 — Jun 2025 · Gurugram, India

  • Achieved 10% page load improvement by eliminating redundant API calls, implementing lazy loading and resource prefetching, and refactoring legacy JSP codebase.
  • Developed reusable auto-suggestion search component with debouncing optimization and seamless REST API integration, reducing server load and improving search response times.
  • Diagnosed and resolved critical production bugs across applications, maintaining platform stability and positive user experience.

Stack

Next.jsJavaScriptJSP
A
AiLabs10X
Software Development Engineer Intern
Aug 2024 — Sep 2024 · Jaipur, India

  • Architected and deployed end-to-end full-stack application from concept to production with low-level design documentation and scalable system architecture.
  • Developed responsive frontend with React, Redux, and Tailwind CSS; engineered backend with Python, FastAPI, PostgreSQL, and SQLAlchemy ORM.
  • Implemented microservices with Docker deployed on AWS (EC2, S3, SQS) for scalable distributed system design.
  • Integrated RAG architecture and vector databases for intelligent document processing and semantic search.

Stack

ReactReduxPythonFastAPIPostgreSQLDockerAWS

Tech Stack

Tools I reach for

Frontend

ReactNext.jsTypeScriptJavaScriptReduxTailwind CSSWebpack

Backend

Node.jsExpressPythonFastAPIJavaSpring Boot

Infrastructure & DB

PostgreSQLMongoDBDockerAWSGit

Projects

Things I've built

EVENTIFY

Full-Stack Event Management Platform

Active

Comprehensive event platform with complete CRUD operations, Clerk authentication, and Stripe payment processing with webhook integration for real-time order confirmation and automated transaction management.

Next.js 14Node.jsTypeScriptClerkStripeTailwind CSS
2024

Let's Talk

Open to full-time SDE roles and interesting collaborations.

Currently: at Snapdeal — always happy to connect about new opportunities.

Built with Next.js 15 · Tailwind CSS v4 · Deployed on Vercel.