Front-End Engineer

Hi, I'm Hariharan.

I build high-performance, scalable Front-end applications for e-commerce, SaaS, and enterprise platforms.

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Hariharan
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About Me

Front-end engineer with 4+ years of experience building fast, scalable React applications. I specialize in component-driven architecture, performance tuning, API integrations, and designing intuitive user experiences. I love solving complex UI problems and turning product ideas into polished interfaces.

# Highlights

  • 4+ years experience in React.js, JavaScript, TypeScript
  • Performance optimization for enterprise and e-commerce
  • Strong focus on reusable UI component systems
  • Experienced with GraphQL, REST, and modern tooling

Professional Experience

Altimetrik India Pvt Ltd

Jan 2025 – Present

Senior Engineer – React.js

Client: Samsung E-commerce Platform

Leading development of Samsung’s cart & checkout experiences, delivering global-scale performance and seamless UX.

  • Built responsive cart and checkout flows with optimized rendering.
  • Implemented promotion banners & Trade-In pop-ups improving engagement by 18–25%.
  • Improved checkout success rates by 15% through critical UI fixes.

Lumel Technologies Pvt Ltd

May 2021 – Dec 2024

Product Developer

Developed scalable UI components and performance-optimized modules for enterprise analytics products.

  • Created reusable React component libraries improving maintainability by 60%.
  • Reduced page load time by 30% via bundle optimization & caching.
  • Integrated GraphQL APIs for fast and scalable data loads.
  • Cut bug resolution time by 40% using advanced debugging tools.

Verzeo EduTech

Jan 2021 – Apr 2021

React Developer Intern

Built modular React components and contributed to internal UI systems.

  • Created custom UI libraries accelerating development by 35%.
  • Improved coding standards with linting, boosting productivity by 25%.

Projects

Samsung E-commerce Shopping Cart

Engineered a responsive, high-performance cart & checkout workflow for Samsung’s global e-commerce ecosystem.

Optimized rendering and state management
Reduced checkout drop-offs
Improved page load speed by 20%
Frontend Engineer

ValQ – InfoBridge Integration

Enabled scenario modeling, budgeting, and analytics for Power BI using ValQ and InfoBridge.

No-code data transformation workflows
Write-back capabilities
Enterprise-grade UI integration
Frontend Developer
React
Next.js
TypeScript
JavaScript
Angular
Tailwind CSS
HTML5
Node.js
GraphQL
Redux
PostgreSQL
Git
Figma
Prisma
React
Next.js
TypeScript
JavaScript
Angular
Tailwind CSS
HTML5
Node.js
GraphQL
Redux
PostgreSQL
Git
Figma
Prisma
React
Next.js
TypeScript
JavaScript
Angular
Tailwind CSS
HTML5
Node.js
GraphQL
Redux
PostgreSQL
Git
Figma
Prisma
React
Next.js
TypeScript
JavaScript
Angular
Tailwind CSS
HTML5
Node.js
GraphQL
Redux
PostgreSQL
Git
Figma
Prisma

Let's connect !

New projects, freelance enquiry, or even a coffee?

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