React · Next.js · TypeScript
React is not the point. The wait is.
We build React and Next.js frontends for teams whose users are waiting too long: server-rendered where search matters, single-page where interaction does, and measured either way.
Nobody asks for React. They ask why the dashboard takes four seconds and the form loses their input.
Typical before and afterApp type
| What users feel | Before · what we inherit | After · React + Next.js |
|---|---|---|
| Time to interactiveHow long before a user can do anything | 4.2s | 1.1s74% faster |
| Page transitionMoving between screens once loaded | 1.8s | InstantNo reload |
| Form round-tripSubmitting and seeing the result | 2.4s | 0.3sOptimistic |
| Mobile bounce ratePeople who leave before it loads | 46% | 19%−27 pts |
Medians across React rebuilds we have delivered · measured with Lighthouse and real-user data, before and after
48h
To a written scope
Week 1
Working prototype
SSR
Where SEO matters
100%
Code and IP yours
What we build with React
React.js development for modern web and SaaS products.
We help founders and teams use React where it shines: dashboards, portals and web apps that need a fast UI, sensible state management and clean integration with your backend.
Dashboards & admin panels
Data-dense interfaces with tables, filters, charts and role-aware views that stay fast at scale.
Multi-tenant SaaS front ends
Tenant-aware routing, plan gating and per-account theming built into the component layer.
Customer portals
Self-service accounts, documents and billing surfaces that cut support volume.
Design systems in React
A typed component library your team can extend without breaking the product.
Migration from legacy front ends
jQuery, AngularJS or server-rendered UIs moved to React incrementally, without a freeze.
Performance rescue
Slow, re-render-heavy apps profiled and fixed: measured before and after.
How React projects run here
A practical React process, from audit to production.
We keep the React process structured but lightweight, so we can deliver a working build in real time without surprising you on quality, timeline or budget.
Audit & architecture
We read the existing code or the requirements, then propose component structure, state strategy and routing.
Week 1
Component & state design
A typed component library and predictable state: the decisions that stop a React codebase rotting.
Week 1–2
Implementation & integration
Build or refactor components, wire them to APIs, handle loading, error and empty states properly.
Sprint by sprint
Testing, hardening & rollout
Automated tests on critical paths, accessibility and performance passes, then a staged release.
Pre-launch
Ongoing support & features
A standing team continues to ship features and keeps dependencies current.
Post-launch
Where React earns its keep
React use cases we most often deliver.
Most of our React work is on product surfaces: SaaS dashboards, admin tools and portals, rather than brochure-ware landing pages.
Operations dashboards
Internal tools for finance, operations or support teams who need visibility and control in one place.
SaaS product UI
The logged-in surface of a subscription product: onboarding, workspace, settings and billing.
Customer self-service portals
Accounts, documents, invoices and requests, moved off email and spreadsheets.
Legacy UI replacement
Replacing an ageing jQuery or server-rendered interface with a modern front end, screen by screen.
The stack around React
The React stack we typically use at QalbIT.
We usually pair React with modern tooling: TypeScript, a typed component library and a tested data layer, so the front end stays maintainable and predictable as the team changes.
Core
- React 19
- TypeScript
- Next.js App Router
- Vite
State & data
- TanStack Query
- Zustand / Redux Toolkit
- REST & GraphQL
- Zod validation
Styling & design systems
- Tailwind CSS
- Radix UI primitives
- Storybook
- Design tokens
Quality & observability
- Vitest / Jest
- Playwright
- ESLint & Prettier
- Sentry
We adapt to what you already run. If your team is on a different state library or design system, we work inside it rather than rewriting for preference.
React in production
Where React is the surface.
Typed components, predictable state, and the client owning the code.
Start here
Hire React developers who will still be proud of the code in year three.
Share your current front end, goals and the problems you want to solve. We will review your requirements, look at any existing code and propose a practical React plan that matches your stage and budget.
- A written scope with the exclusions listed
- An architecture recommendation for state and components
- The name of the engineer who would lead it
- Free, and yours to keep either way
Get your free estimate
Three quick questions: scope, approach and a price range back within 48 hours. No sales call required first.
FAQs · React.js development
React.js development: frequently asked questions
Common questions about React development, migrations, performance and team setup, plus what happens after launch.
Ask us directly →Next step
Let’s plan your next React.js build.
Dashboard, portal or product UI: send it in two lines and get a written scope, timeline and price range within 48 hours.
