Senior React Frontend Development AgencySenior React
You need senior engineers who deliver fast. We ship production React frontends in 12 weeks.
IRPR is a senior react frontend development agency. Our engineers work full-time in React 18, TypeScript, Next.js 14, and Tailwind CSS. Every project starts with a clear architecture using React Server Components, state management with Zustand, and automated testing with Playwright.
We ship a production-ready React frontend in 8 to 12 weeks. Fixed pricing starts at $80,000 and ranges up to $250,000 for complex enterprise apps. Every project includes CI/CD, Sentry error tracking, and a fully owned codebase.
Who hires us: CTOs of Series A SaaS companies who need a frontend that handles 100,000+ users. Product managers at healthcare startups who require HIPAA-compliant UI. Engineering leads at fintech firms who demand PCI-DSS ready interfaces. And e-commerce directors who want a headless storefront on Next.js.
Types of software we ship.
Single-Page Application (SPA)
Full client-side React app with lazy loading and code splitting. Integrates with REST or GraphQL backends like Hasura or Apollo.
Enterprise Dashboard
Admin panels with complex data tables, real-time charts (Recharts), and multi-role access. Often paired with Auth0 or Clerk.
Real-Time Data Visualization
Live dashboards using WebSockets or Supabase Realtime. Renders thousands of data points with D3.js and React-window.
E-commerce Frontend
Headless storefront on Next.js with dynamic products, cart, and checkout. Integrates Stripe, Shopify Storefront API, or Commerce.js.
SaaS Admin Panel
Multi-tenant UI with subscription management, billing history, and user roles. Built with React Admin or custom MUI components.
Progressive Web App (PWA)
Offline-capable React app with service workers, push notifications, and app-like navigation. Uses Workbox or Next.js PWA plugin.
Mobile-Responsive Web App
Pixel-perfect mobile UI with bottom navigation, gestures, and touch interactions. Tested on real devices via BrowserStack.
Component Library / Design System
Reusable React components with Storybook, design tokens, and accessibility (WCAG 2.1 AA). Versioned and published to npm.
We build for every business type.
SaaS & Tech Companies
E-commerce & Retail
Health & Finance
Enterprise & Internal Tools
Media & Education
Why a Senior React Frontend Development Agency?
Hiring an agency of senior React engineers avoids the risk of junior developers and slow delivery.
IRPR only employs senior engineers with 6+ years of React experience. Our team averages 10 years of frontend work. We have shipped React frontends for 200+ products across 50 countries. Every engineer has contributed to production apps handling 1M+ monthly active users.
We use TypeScript by default, write unit tests with Vitest, and run end-to-end tests with Playwright. Our deployments use Vercel or AWS Amplify with automatic rollbacks. Code is reviewed by two senior peers before merge. No code reaches production without passing an automated test suite.
Generic Dev Shop vs. IRPR: The Real Difference
Most agencies mix junior and senior talent. IRPR assigns only senior React engineers from day one.
We have seen projects where a generic dev shop assigns a single mid-level developer to build the entire frontend. The result is inconsistent code, poor state management, and weeks of rework. Often they use outdated patterns like class components or Redux with too much boilerplate.
IRPR builds with React 18 functional components, custom hooks, and modern caching (React Query or SWR). Every project gets a dedicated senior engineer who architects the frontend before writing a single line of code. We deliver a production-grade app with 80% test coverage and a full CI/CD pipeline.
- Mixed team of junior and mid-level developers
- No dedicated architect role
- Uses outdated React patterns (class components, Redux boilerplate)
- No automated testing or low coverage
- No CI/CD pipeline included
- Hourly billing with scope creep
- 100% senior React engineers (6+ years experience)
- Frontend architecture review in Roadmap phase
- Modern React 18 with hooks, Suspense, Server Components
- 80%+ test coverage with Playwright and Vitest
- CI/CD with GitHub Actions and Vercel/AWS
- Fixed price, no hourly billing
Our Process: From Idea to React Frontend in 12 Weeks
We follow a phased approach that de-risks your project from week one.
Every engagement starts with a 1-week Roadmap phase. We define user flows, component tree, API contracts, and a detailed time estimate. You pay a fixed fee of $5,000 for the Roadmap. If you move to build, that fee is deducted from the total.
After the Roadmap, we build in 2-week sprints. You see a working React app after the first sprint. We deploy to a staging environment on Vercel with automatic previews for every pull request. You give feedback on a real app, not static mockups.
What Ships When You Hire Us
You get a production-ready React frontend with everything needed to run and maintain it.
Every project includes the full source code, a private npm registry for shared components, and a style guide in Storybook. We also ship a deployment pipeline that builds, tests, and deploys to your cloud account. No black boxes.
We also provide a handover document that explains the architecture, state management decisions, and how to add new features. Your developers can start contributing within a day. We offer 30 days of post-release support at no extra cost.
- Source code in your GitHub repo
- CI/CD pipeline with GitHub Actions, Vercel/AWS
- 80%+ test coverage (unit + e2e with Playwright)
- Sentry error tracking and performance monitoring
- Storybook component library with design tokens
- API documentation (Postman or Swagger)
- Deployment guide and runbook
- 30-day post-release support
- Complete code ownership
- No ongoing license fees
What we ship in this practice.
SaaS Dashboard for Analytics Platform
Built a real-time analytics dashboard with React, D3.js, and WebSockets. The client reduced page load time from 8 seconds to under 1 second using virtual scrolling and lazy loading. Stack: Next.js, TypeScript, Tailwind CSS, Redis.
Headless E-commerce Storefront
Developed a Next.js storefront connected to Shopify Storefront API. Conversion rate increased by 22% after implementing server-side rendering and dynamic product filtering. Stack: Next.js, TypeScript, Stripe, Algolia.
Fintech Payment Dashboard
Created a PCI-DSS compliant payment management interface for a lending startup. Automated reporting saved the compliance team 15 hours per week. Stack: React, TypeScript, Material UI, Plaid API.
Healthcare Patient Portal
Built a HIPAA-compliant patient portal with secure messaging and appointment scheduling. Reduced no-show rate by 30% through automated reminders. Stack: React, TypeScript, AWS Cognito, Twilio.
Real-Time Collaboration Tool
Engineered a React-based collaborative editing interface using Operational Transforms and WebSockets. Supported 50 concurrent users without lag. Stack: React, Yjs, WebRTC, NestJS.
EdTech Learning Management System
Delivered a FERPA-compliant LMS frontend with drag-and-drop course builder, video streaming, and quiz engine. Course creation time dropped from 3 days to 2 hours. Stack: Next.js, TypeScript, Mux, Tailwind CSS.
Why teams hire us.
Senior engineers only, no juniors
Every engineer on your project has 6+ years of React experience. We don't hire juniors. You get a senior frontend architect who writes code, not just a manager who delegates.
Fixed price, not hourly billing
We give you a fixed price after the Roadmap phase (week 2). No surprises. If we find new requirements, we adjust scope, not your budget.
Production-ready in 12 weeks
From kickoff to production deploy in 12 weeks on average. We ship after the first sprint and keep deploying every two weeks. You see progress in real time.
Full code ownership
You own every line of code we write. No proprietary frameworks, no lock-in. We push to your repository day one. You can fire us and keep everything.
Built-in compliance for regulated industries
We have built React frontends for HIPAA (healthcare), PCI-DSS (fintech), SOC 2 (SaaS), and FERPA (edtech). Our engineers know how to handle auth, audit logs, and data encryption.
200+ products shipped across 50 countries
Our portfolio proves we can deliver for any market. We have built for startups in New York, enterprises in London, and government agencies in Singapore. We work async-first with overlap hours.
Idea → Roadmap → Product → Release.
Every engagement runs through the same four-stage pipeline. Predictable by design.
Questions clients ask first.
Related services and industries.
Ready to build? Let's talk.
30-minute discovery call. No deck. We'll tell you honestly what it takes, how long, and how much.