React JS Development for Fast, Maintainable Web Apps
We build React frontends in TypeScript that load fast, pass Core Web Vitals and stay easy to change. Dashboards, customer portals, SaaS apps and storefronts, delivered in weekly demos.
- TypeScript-first React codebases
- Core Web Vitals and SEO built in
- Weekly demos, milestone payments
- Full code ownership under NDA
- React
- TypeScript
- Next.js
- Redux Toolkit
- TanStack Query
- React Hook Form
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React JS development that your team can keep building on
- SaaS product frontends
- Internal operations dashboards
- Customer and partner portals
- Booking and scheduling apps
- Headless ecommerce storefronts
- AI assistant interfaces
Most teams come to us for React JS development after hitting one of two walls: a new product that needs a solid frontend fast, or an existing React app that has become slow, fragile and hard to change. We handle both. Our developers write typed, component-based React that your in-house team can read, test and extend without calling us for every change.
We start with the screens that matter most to revenue or operations, agree a written fixed quote, then ship in milestones you can see every week. State management, data fetching, forms, routing, accessibility and performance are planned up front, not patched in later. When SEO matters, we pair React with Next.js for server rendering.
Ecomsolver has spent more than seven years building web and mobile software for clients in the USA, UK, Europe, Australia, the Middle East and India. You get direct access to the developers writing your code, overlap with your working hours and post-launch support once the app is live.
We fix it, fine-tune it, then add AI and automation.
Most clients come to us with something already running: a store that is slow, an app that crashes, code nobody wants to touch. We stabilise it first, then add the AI features that save time and earn money.
Fix
A code and infrastructure audit of your React / Next.js product, then the fixes that matter most.
- Bugs, crashes and broken integrations
- Security patches and outdated versions
- Code nobody can maintain
Fine-tune
Make it fast, stable and easy to change, without a risky rewrite.
- Speed, caching and database tuning
- Tests, CI/CD and monitoring
- UX fixes where users get stuck
Add AI & automation
Practical AI built into the React / Next.js product you already have.
- AI search and assistants over your own data
- Content, document and support automation
- AI agents that work with your tools
React JS development services
Every engagement starts with a free consultation and a written, fixed quote.
Custom React web applications
Single-page and multi-page apps built in TypeScript with clear component structure, typed API layers, form validation and routing that scale as you add features and team members.
Admin panels and dashboards
Data-heavy dashboards with tables, filters, charts, role-based access and exports, built for operations teams who live in the tool all day and need it to respond instantly.
SaaS and customer portal frontends
Signup, onboarding, billing screens, settings and account areas for SaaS products and client portals, connected to your backend through REST or GraphQL APIs.
React performance optimization
We profile slow apps, cut bundle size, fix unnecessary re-renders, add code splitting and caching, and improve Core Web Vitals so pages feel quick on real devices.
Legacy frontend to React migration
Move from jQuery, AngularJS or server-rendered templates to React in stages, screen by screen, so the business keeps running while the new frontend replaces the old one.
AI features in React apps
Chat assistants, smart search, streaming LLM responses and AI-generated content inside your React interface, with loading states, error handling and usage controls users can trust.
Plan your React app with a senior developer
Share your idea or existing codebase. We will reply with a scope outline and a written fixed quote within 24 hours.
- 100% free
- No obligation
- Reply within 24 hours
Why teams choose Ecomsolver for React
Code your team can own
Typed components, consistent patterns, tests on critical flows and written documentation mean your developers can take over or extend the codebase without a long ramp-up period.
Fixed scope, visible progress
You get a written fixed quote, milestone payments and a working demo every week, so you always know what is done, what is next and what it costs.
Speed users can feel
We budget for performance from the first sprint: lazy loading, image optimization, server rendering where needed and Core Web Vitals checks before every release.
Direct developer access
You talk to the engineers building your app, not a chain of account managers. Questions get answered during your working hours thanks to planned time-zone overlap.
- React
- TypeScript
- Next.js
- Redux Toolkit
- TanStack Query
- React Hook Form
- Tailwind CSS
- GraphQL
- Node.js
- Vite
- Jest
- Playwright
- Storybook
- AWS
From first call to launch, with no surprises.
Clear milestones, weekly demos and a fixed price agreed before any work starts.
Free consultation
We review your goals, users, existing code or designs and integrations, then flag risks and options before any commitment or paperwork is signed.
Scope and fixed quote
You receive a written scope with screens, features, milestones and a fixed quote. We sign an NDA and agree payment milestones tied to working software.
Architecture and UI setup
We set up the repository, TypeScript config, component library, state and data patterns, CI/CD pipeline and staging environment before feature work begins.
Build in weekly demos
Features ship in short cycles. Every week you see working screens on staging, give feedback and approve milestones before we move to the next set.
Launch and support
We run performance, accessibility and cross-browser checks, deploy to production, hand over code and documentation, and stay on for post-launch support.
What clients say about working with Ravindra and the team.
Verified reviews from Clutch, GoodFirms, LinkedIn and long-term clients in the USA, UK, Australia, Europe and India.
“I've been working with Ravindra and the Ecomsolver development team consistently for several years now and will continue to do so. During this time, the team has worked across the Magento, Shopify and WordPress platforms and on everything from small changes to full website builds. Throughout this period the team has continued to provide excellent service and inventive, skillful solutions…”
“We've increased sales by 20% thanks to their work.”
Clutch summary: Ecomsolver provides ongoing web development services and support for a Magento website, adding extensions and troubleshooting and fixing bugs as needed. Ecomsolver's ability to maintain an evolving, complex e-commerce site is critical to the…
Founder, Crown Bees · Woodinville, WashingtonMagento development & support
“I recently had the pleasure of working with Ravindra Saini on the redesign and refinement of my website, CulturalConfidence.com, and I couldn't be more pleased with the results. Ravindra brought both technical skill and a responsive, collaborative attitude to the process. He implemented a range of updates with care, from visual improvements to functional adjustments, and always remained receptive to…”
CEO & Cultural Expert, Cultural ConfidenceWebsite redesign“Ravindra is one of the absolute best Magento developers I've hired and worked with over the past 3 years and just a pleasure to work with! If you are in need of integrating the fastest Magento product import process available this is your guy! He's very professional and his English communication skills are perfect. If you are on Magento or…”
AVP, Web Marketing Manager, AXOS BankMagento development“We're impressed with their quality of work.”
Clutch summary: Ecomsolver Pvt. Ltd. has developed an e-commerce website for a custom uniforms company. The team has built and maintained the client-requested Magento features. Ecomsolver Pvt. Ltd. has helped the client see success in their…
President, WearForm · Houston, TexasMagento e-commerce development“5* What an amazing developer. I have been communicating with Ravindra over the last few days and his service he delivered has been exemplary brilliant. Outstanding service, amazing value, great product and he have made every effort to go above and beyond for my needs. Ravindra listened to my needs, explained everything and gave support all the way through. Ravindra…”
“I could always depend on them when something needed to be done quickly.”
Clutch summary: Ecomsolver Pvt. Ltd. fixed technical issues in a sophisticated e-commerce site. They also created custom navigation functionality and an online catalog. The enhanced site helped double sales, thanks to Ecomsolver's technical expertise. Their reliability,…
Technical Lead, AP OnderdelenCustom Magento development“Their breadth of knowledge exceeded our expectations.”
Clutch summary: Ecomsolver Pvt. Ltd. provided website support for an e-commerce platform. They upgraded the client's Magento website from version 4.4.2 to version 4.4.7-p3 and updated their existing and depreciated plug-ins. Ecomsolver Pvt. Ltd. delivered a…
Sales Manager, Streamaster Australia · SydneyMagento upgrade & support“We have worked with Ecomsolver for the past 3 years in a steady capacity. Our magento website (www.crownbees.com) has been maintained, upgraded, and modified by Ecomsolver. We're are in the middle of rebuilding our website for Magento 2, and rely upon their team to ensure all extensions function and work as developed. We are extremely pleased with their work. Ravindra,…”
Owner, Crown Bees · Woodinville, WashingtonMagento maintenance & Magento 2 rebuild“As someone without any experience in creating a webpage, it was important to me to be able to work with an expert. Ravindra is not only an expert at web design and creation, but also a very smart, patient and professional person. The project was completed faster than expected, and the site looks even better than I imagined. It was…”
Website design & development“They would give you exactly what you want and expect.”
Clutch summary: A GIS data service provider tapped Ecomsolver Pvt. Ltd. to update their e-commerce site from Magento 1 to Magento 2. They worked closely with the client to upgrade and refresh the web app. Ecomsolver…
CEO & Founder, USLandGrid · Denver, ColoradoMagento 1 to Magento 2 migration“Ravindra Saini is a very skilled professional. We have developed a few projects together and I really enjoyed working with him. He proved to have a deep knowledge of website design and building on multiple platforms, solved all the problems in a fast and effective way, and showed a big availability to accommodate client's demands and needs. I recommend Ravindra…”
Senior engineering, with the safeguards that make outsourcing safe.
9+ years as Ecomsolver Pvt. Ltd., building and maintaining software for clients in the USA, UK, Europe, Australia and India. Rated 5.0 on Clutch and 4.8 on GoodFirms.
Pay per milestone
You never pay for work you have not seen and approved.
You own everything
Full source code, designs and accounts are transferred to you. No lock-in.
NDA before you share
We sign your NDA before you tell us about your idea. Your IP stays yours.
Full transparency
Weekly demos, a shared task board and direct access to your developers.
Your time zone
Overlapping hours with the USA, UK, Europe, Middle East and Australia.
Senior engineers
Your project is built by experienced developers, not trainees.
React JS Development: frequently asked questions
Ask us on WhatsApp. A real person replies, usually within minutes during working hours.
Ask on WhatsAppHow do you price React JS development projects?
After a free consultation we write a scope document listing screens, features and integrations, then give a fixed quote for that scope. Payments are split into milestones tied to working software you can review on staging. If scope changes later, we quote the change in writing before starting it, so there are no surprise invoices.
Should we use React or Next.js?
Use plain React when the app sits behind a login and SEO does not matter, such as dashboards or internal tools. Choose Next.js when public pages need to rank in search, load fast on first visit or share links with rich previews. Many products use both: Next.js for marketing and public pages, React patterns everywhere else.
Can you take over and fix our existing React app?
Yes. We start with a code audit covering structure, dependencies, performance, security and test coverage. You get a written report with prioritized fixes. From there we can stabilize the app, upgrade outdated libraries, improve speed and continue feature work, or train your team on the improved patterns.
Who owns the code and designs?
You do. All source code, design files and documentation belong to you, and we sign an NDA before reviewing your project. Code lives in your repository or is transferred to it at each milestone, so you are never locked in to working with us.
Can our time zone work with your team?
We plan working-hour overlap with clients in the USA, UK, Europe, Australia and the Middle East. You get scheduled calls, a shared chat channel with the developers and weekly demos. Our US office is in Austin, Texas, and we have a UK phone line for easier contact.
Do you provide support after launch?
Yes. After launch we provide post-launch support to fix issues, monitor performance and handle small changes. Many clients then continue with ongoing feature development or a monthly maintenance arrangement that covers dependency updates, security patches and new React releases.