React UI Development for Dashboards, Marketplaces & Web Apps

I build React interfaces that are fast, accessible, and easy to maintain, and that fit the API behind them. Because I also build the backend, screens and data contracts are designed together, which avoids rework between frontend and backend.

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What I deliver

  • React applications for dashboards, marketplaces, ticketing, and admin tools
  • Interactive data views and visualizations on top of REST APIs
  • Clean component structure with modern JavaScript, semantic HTML, and Sass
  • Performance work: Core Web Vitals, bundle size, and render efficiency
  • Accessible, responsive layouts that work across desktop and mobile

When to hire me

  • You have a working API and need a polished, reliable frontend for it.
  • Your existing React app is slow, inconsistent, or hard to extend.
  • You want one engineer who can design the UI and the API behind it together.

Relevant work

Customer Support & Messaging

TASS

Unified Support Ticket Aggregation Hub

Sub-200ms REST API response times across ticket queries and thread updates.

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eCommerce & Recommerce

Toredo

Consumer Device Trade-In & Valuation Engine

Sub-300ms quote generation workflow.

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Travel & Metasearch

TripYork

Multi-Source Travel Metasearch Engine

Sub-300ms API response times across multi-source travel search queries.

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Data Science & NLP

Interest Miner

Academic Research & Topic Correlation Analytics

Engineered full data pipeline from API extraction to interactive visualization.

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Enterprise eCommerce & Logistics

HS Sales GmbH

Multi-Marketplace ERP & Inventory Platform

Maintained continuous multi-year engineering collaboration spanning 3+ years of reliable deliveries.

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Frequently asked questions

Do you only build frontends, or full-stack?

Either. I can build just the React UI against your existing API, or own the full stack with Django and PostgreSQL behind it.

Can you improve an existing React codebase?

Yes. I start by measuring where it is slow or hard to change, then refactor incrementally instead of rewriting.

Do you care about performance and accessibility?

Yes. I use semantic HTML, test responsive behaviour, and optimize for Core Web Vitals as part of normal delivery.

Let's talk about your project

Email a few lines on your goals, stack, and timeline. I reply within 24 hours.

Email aakashjsr@gmail.com