ReactJS DevelopmentCOMPONENT-FIRST
React front ends for SaaS platforms
that stay easy to change
- Enterprise dashboards
- Design systems
- Customer portals
- Storefront UIs
React won the front end because the component model scales with teams, not just with code. We build with the ecosystem's breadth and against its churn — deliberate library choices, a rendering strategy you can defend, and upgrades that don't stall the roadmap.
- Server and client components
- TypeScript end to end
- Documented upgrade paths
- React 18
- Concurrent mode
- Performance
- 98 / 100Lighthouse score
- Framework
- React 18Concurrent mode
- React 18
- Next.js
- TypeScript
About React
A small library with an enormous ecosystem — the advantage and the tax
React is a small idea, and that is the strength of it: describe the interface as a function of state, compose it out of components, and let the reconciler work out what actually changed on screen. The idea has held up long enough that a React codebase written years ago is still legible today, even when none of its dependencies are.
Everything else — routing, data fetching, forms, styling, state — React deliberately leaves to you. That breadth means there is a well-maintained answer to almost any problem, and four competing answers to the common ones. Choosing badly is expensive later, because dependencies age faster than the product does. We choose with the upgrade in mind: fewer libraries, ones with a real maintenance record, and a boundary around anything we expect to replace.
Rendering is the other decision worth arguing about. Server components, streaming, static generation and plain client rendering each suit different pages, and getting it wrong shows up as a slow first paint or a server bill nobody budgeted for. We decide per route rather than per project and write down the reasoning, so the next engineer inherits an argument instead of folklore — and because React has the deepest front-end hiring pool, that engineer is one you can actually recruit.
- Server and client boundaries
- Rendering chosen per route
- TypeScript from props to API
- A dependency budget we defend
- Component library in Storybook
- Version upgrades planned, not deferred
React Services
The React work we actually take on
08 capabilities
UI and Design System Work
Turning a design file into components that survive contact with a second designer. Tokens for colour, spacing and type; a props API that discourages one-off variants; keyboard and screen-reader behaviour handled in the primitive rather than patched per screen.
- Tokens, not hard-coded values
- Keyboard and screen-reader paths
- Variants that stay finite
ReactTailwindRadixReact Web Application Development
Products where the front end carries real state — SaaS, marketplaces, internal platforms. We settle the rendering strategy and the data layer early, because retrofitting server components onto a client-only app is a rewrite, not a refactor.
- Server and client components
- Caching and revalidation rules
- Route-level code splitting
Next.jsTypeScriptPostgreSQLShared Code Across Web and Mobile
React and React Native share a mental model, not a rendering target. What travels well is types, validation, API clients and design tokens; what does not is layout and navigation. We draw that line explicitly so the shared package stays worth having.
- Shared types and API clients
- Design tokens across targets
- Platform code kept separate
React NativeExpoTurborepoCustom Application Development
Where an off-the-shelf pattern would fight the workflow — approval chains, pricing engines, scheduling grids. Custom hooks and context for the parts that genuinely need them, plain props everywhere else, and the source code and CI in your accounts from day one.
- Workflow-specific state design
- Custom hooks where warranted
- Your repos, your pipelines
TypeScriptViteZodComponent Libraries and Packages
Shared UI published as a versioned package rather than copied between repos. Semantic versioning, tree-shakeable exports, Storybook as the contract, and a deprecation path so consuming teams can upgrade on their own schedule.
- Storybook as the contract
- Tree-shakeable, typed exports
- Deprecations with a migration note
npmStorybookTypeScriptMigration and Modernisation
jQuery, AngularJS or an early React app that never left class components. We migrate route by route behind a shared shell so the old and new front ends run side by side, and each release is small enough to reverse if it misbehaves.
- Route-by-route, both apps live
- Classes and lifecycles to hooks
- Bundle budgets enforced in CI
MigrationStrangler patternCodemodsMaintenance and Version Upgrades
React's churn is real: a major version, a router rewrite, a build tool that changes its config format. We keep a dependency inventory, take upgrades in planned batches instead of emergencies, and watch the metrics that tell you a regression shipped.
- Planned upgrade batches
- Dependency and CVE inventory
- Real-user performance monitoring
RenovateCI gatesWeb VitalsDashboards and Internal Portals
Dense, permissioned screens where the hard parts are virtualised tables, live data that does not thrash the layout, and role logic that is enforced on the server as well as hidden in the UI. Charts are the easy half.
- Virtualised tables and lists
- Live updates without layout thrash
- Roles enforced server-side too
TanStackWebSocketsRecharts
Not sure which of these you actually need?
Send us the repo or the wireframes. We'll say what we would build, and what we would leave alone.
Why React
What React is good at — and what it charges you
React is the default for most new front ends, which makes it worth being precise about the trade you are making.
- Composition, Not ConfigurationA component is a function with props. That is nearly the whole API, and it means shared UI is assembled rather than configured — no template language to learn, no framework-specific escape hatch to reach for when the design gets unusual.
- State In, Interface OutYou describe what the screen should look like for a given state and React works out the DOM operations. Most interface bugs stop being about stale nodes and start being about state, which is a far easier place to reason and to test.
- It Scales With the TeamComponent boundaries double as ownership boundaries. Several squads can work on one product without coordinating every change, because the contract between them is a typed props interface rather than a shared global.
- Rendering You Choose Per PageWith Next.js the same components can be server-rendered, streamed, statically generated or left on the client. Marketing pages get crawlable HTML and an app shell stays interactive — one codebase, different strategies per route.
- One Mental Model, Two TargetsReact Native is not code reuse, but it is skill reuse. A web team ships mobile without relearning how to structure state, and types, validation and API clients can genuinely be shared between the two.
- It Plugs Into Whatever You HaveReact makes no assumptions about the backend, so headless CMSes, payment providers, auth services and existing REST or GraphQL APIs all attach without fighting the framework's conventions.
- The Cost: Churn and ChoiceNobody should sell React without this part. You will pick your own router, data layer, form and styling approach, and each of those ages on its own schedule. Budget for upgrades every year, keep the dependency list short, and put a boundary around anything you expect to replace.
Working With Us
How we handle the parts React leaves open
Engineers, Not React Users
The people on your project can explain why a re-render happened, when memoisation earns its keep and when it is noise, and what a server component may and may not do. That is the difference between fixing a symptom and fixing a cause.
Engagement Shaped to the Work
A dedicated team for a product that keeps evolving, time and materials when the scope is still moving, a fixed scope when it genuinely is not. We will say which one we think fits before you ask.
Support That Outlives the Launch
Bug fixes, security patches, dependency upgrades and performance work continue after handover. Response times and cover hours are agreed in writing per engagement rather than promised in the abstract.
Decisions Written Down
Router, state, data fetching, rendering per route — each choice ships with a short record of what we picked, what we rejected and what would make us revisit it. Future you inherits reasoning, not archaeology.
Review Is Not Optional
Every change is read by another engineer. TypeScript, lint and formatting are enforced in CI, tests run on pull requests, and preview environments mean reviewers look at the running screen, not just the diff.
Built for the Handover
React has the deepest front-end hiring pool, and we build so you can use it. Conventional structure, no in-house framework, documented setup — so bringing the work in-house is a decision you can make, not one we have foreclosed.
Want a second opinion on your React architecture?
Dedicated team, time and materials, or a fixed scope — whichever fits the work.
The React libraries we reach for, and when
Vite
A dev server that stays fast as the codebase grows, because it serves native ES modules instead of rebundling on every save. Our default for SPAs, dashboards and internal tools that do not need server rendering.
Next.js
The reference implementation of React's server story: server components, streaming, per-route caching, image and font handling. Worth its opinions when SEO, first paint or data locality matter — overkill when none of them do.
Material UI
A large component set with theming and accessibility already worked out. Sensible for admin and enterprise interfaces where consistency beats a bespoke look; less so when the interface is the brand.
Redux Toolkit
Still the clearest answer for genuinely shared, long-lived client state you need to inspect and replay. Most applications need far less of it than they reach for, so we use it where the state is actually global.
React Query
Server data is not application state, and treating it as such causes most caching bugs. TanStack Query owns fetching, caching, retries and background revalidation so components stop hand-rolling each one.
Tailwind CSS
Styling that lives beside the markup, so dead CSS stops accumulating and deleting a component deletes its styles. It works best over a token layer and inside a component library — on its own, across a large team, it drifts.
What We Reach For in React
Languages / Core
Front-End
Architecture
Libraries & Tools
Databases
Deployment / Cloud
Testing Tools
ORMs / Data Layer
Caching
Project Management
Development Process
How we build a React application
Five stages. The first one carries the most weight, because that is where the decisions you cannot cheaply undo get made.
We map the data, the roles and the screens that carry real state, then pick the framework, the rendering strategy and the data layer against that rather than against habit. Next.js or Vite, server components or client-only, a store or no store — each choice is recorded with what we rejected and why, because these are the ones that are expensive to reverse.
Key Deliverables
- Architecture decision record
- Framework and rendering choice
- Component and data model
- Delivery plan
Wireframes and prototypes settle the flows; the design system settles everything after them. Tokens and primitives get built in Figma and in code together, so a button has one definition instead of eleven. Keyboard paths, focus order and contrast are checked here, while they are still cheap to change.
Key Deliverables
- Design tokens and primitives
- Responsive prototypes
- Storybook component library
- Accessibility review
Work lands in short cycles as vertical slices — a whole feature, end to end, rather than one layer at a time. TypeScript is strict from the first commit, lint and formatting are enforced in CI rather than in review comments, and every pull request gets a preview URL so reviewers look at the running interface and not only the diff.
Key Deliverables
- Sprint releases you can use
- Strict TypeScript codebase
- Unit and component tests
- CI/CD with preview builds
Component tests cover behaviour, end-to-end tests cover the few journeys that must never break, and bundle and performance budgets fail the build rather than the launch. Where the risk warrants it, features go out behind flags, so backing a change out is a toggle instead of a redeploy at midnight.
Key Deliverables
- Component and integration tests
- End-to-end journeys
- Bundle and performance budgets
- Flagged production release
The first three months after launch are covered: bug fixes, browser quirks, small refinements. After that a retainer keeps React and its dependencies current, applies security patches, and picks up the performance work that only appears under real traffic. React keeps moving, so something in your plan has to move with it.
Key Deliverables
- 3 months of post-launch cover
- Planned dependency upgrades
- Real-user performance monitoring
- Feature sprints on request
Industries We Serve
Where we have put React to work
The component model is the same everywhere. What changes is which constraint dominates — latency, density, regulation or reach.
Online Retail
Catalogue and category pages are the case for server rendering: crawlable, cacheable, fast on a mid-range phone. Cart and checkout are the opposite — client state, optimistic updates, and a payment step that must not re-render underneath the user.
Gaming
Leaderboards, match dashboards and in-app purchase flows where the data changes faster than the user can read it. The work is in throttling updates and virtualising lists so a socket firing at speed does not turn into dropped frames.
Schools and Online Learning
Course players, cohort dashboards and assessment flows. Long sessions on modest hardware and patchy networks, so state has to survive a reload, and accessibility is a requirement of the sector rather than a nice-to-have.
Healthcare
Patient portals, telehealth interfaces and clinical dashboards, designed to support the privacy and audit obligations agreed for each engagement. In practice that means careful handling of identifiers in the client, session timeouts that behave, and screens legible under pressure.
Food & Restaurant
Ordering and delivery interfaces where the whole experience is a countdown: menu, cart, live order status. Optimistic UI hides latency, and the tracking screen has to stay correct when the connection drops in a lift.
Freight and Supply Chain
Fleet and shipment views that put thousands of moving rows on one screen. Virtualised tables, map layers that update without redrawing everything, and filters whose state lives in the URL so an operator can send a colleague exactly what they are looking at.
Banking & FinTech
Account dashboards, analytics and payment journeys. Every permission is enforced on the server as well as reflected in the interface, sensitive values stay out of client caches and logs, and each step of a transfer is idempotent.
HRMS & Enterprise
Employee self-service, payroll and recruitment screens with genuinely complicated role logic. Configuration differs per tenant, so the component library carries the variation instead of the codebase forking for every customer.
Frequently Asked Questions
React decisions, explained
without the hype
The questions product teams actually ask us before starting a React project. Have others? Speak to a React engineer.
Tell us what you're
trying to build
The problem, who it's for, and where you are now. That's enough for us to come back with something useful.
hello@aryavos.com
HQ
Noida, India & New York, USA
What happens after you send it
A developer reads it, not an auto-responder. Expect questions about scope and constraints first, then a suggested way to start.