Senior React Frontend Development CompanySenior React
We build complex React interfaces for SaaS and enterprise products. Fixed price delivery in 12 weeks with senior engineers only.
IRPR is a senior React frontend development company. We build high-performance interfaces using React 18, TypeScript, Next.js, and modern state management like Redux Toolkit or Zustand.
We ship production-ready frontends in 12-14 weeks. Our fixed price projects range from $80K to $250K. We follow HIPAA, PCI-DSS, and SOC 2 compliance for regulated industries.
Our clients include CTOs at funded startups needing an MVP, engineering directors at mid-market companies refactoring legacy UIs, and product managers at enterprise teams launching new features.
Types of software we ship.
Single-page Application (SPA)
Built with React Router and lazy loading for sub-2 second initial load. Optimized for SEO with SSR when needed.
Dashboard / Admin Panel
Complex real-time dashboards with data visualizations. Uses Recharts, D3.js, and WebSockets for live updates.
E-commerce Storefront
Headless commerce frontends integrated with Shopify or BigCommerce. Custom checkout flows and product filtering.
Real-time Collaboration App
Multi-user editing with WebRTC and Conflict-Free Replicated Data Types (CRDTs). Supports cursor sync and live presence.
Data Visualization Platform
Interactive charts, maps, and tables with heavy data processing. Uses D3.js, Deck.gl, and Apache ECharts.
Mobile-Responsive Web App (PWA)
Offline-first applications using Service Workers and IndexedDB. Push notifications and app-like experience.
Component Library / Design System
Composable, reusable UI components with Storybook. Themed via CSS custom properties and tested with Playwright.
Landing Page / Marketing Site with SSR
SEO-optimized static sites using Next.js and ISR. A/B testing integration and sub-100ms TTFB on CDN.
We build for every business type.
SaaS startups
Ecommerce brands
Healthcare
Fintech
Enterprise
Why IRPR for Senior React Frontend Development
We deliver production React frontends faster and with higher quality than most agencies.
Every project is staffed with senior React engineers who have at least 8 years of experience. Our team has shipped over 200 products across 50 countries, averaging 12 weeks per project.
We use a proven process: a 2-week roadmap to define scope and price, followed by iterative development. We handle everything from component architecture to CI/CD and deployment.
The Difference Between IRPR and a Generic Dev Shop
Most agencies assign junior developers and bill by the hour. We do the opposite.
We work with senior engineers only — no juniors, no outsourced BAs. Every project gets a fixed price after a 2-week roadmap, so you know the budget upfront.
Our team maintains full code ownership in your repository from day one. We write tests, set up CI/CD, and provide a production-ready frontend that your team can maintain.
- hourly billing with no cap
- undefined scope that changes
- junior or mid-level developers
- no compliance knowledge
- 8+ months delivery
- unclear code ownership
- fixed price after 2-week roadmap
- clear scope with milestones
- senior engineers only (8+ yrs)
- HIPAA, PCI-DSS, SOC 2 ready
- 12-week average delivery
- full code ownership in your repo
Our Frontend Development Process
We follow a structured 4-phase approach to eliminate surprises and deliver on time.
Phase 1: Discovery Sprint (2 weeks) — we define user stories, architecture, and tech stack. You get a detailed roadmap and a fixed price.
Phase 2: UI Prototype (2 weeks) — high-fidelity prototype with all states and edge cases. You approve before any code is written.
What Ships With Every React Frontend
You don't just get code. You get a complete production setup.
Every delivery includes source code in your own Git repository, a CI/CD pipeline, and monitoring. We make sure your team can take over immediately.
All projects include accessibility testing (WCAG 2.1 AA), performance budgets, and a Lighthouse score of 90+.
- Source code in your GitHub/GitLab repo
- CI/CD pipeline with GitHub Actions
- Storybook component library with tests
- Unit tests (Jest + React Testing Library)
- E2E tests (Playwright or Cypress)
- Sentry error tracking
- Performance audit report (Lighthouse 90+)
- Accessibility audit (WCAG 2.1 AA)
- Deployment scripts for AWS/Netlify/Vercel
- Documentation (README, architecture diagram)
What we ship in this practice.
Real-time Analytics Dashboard
Built for a SaaS analytics platform. Replaced a 30-second manual refresh with live WebSocket updates. Tech stack: React 18, D3.js, Redux Toolkit, AWS AppSync. Reduced dashboard load from 10s to 1.2s.
Telemedicine Patient Portal
HIPAA compliant patient portal with video calls (WebRTC), appointment scheduling, and EHR integration. Tech stack: Next.js, Tailwind, Twilio Video, PostgreSQL. Cut patient onboarding time from 15 minutes to 3.
Custom Headless E-commerce Storefront
Migrated a Shopify theme to a custom React frontend with server-side rendering. Tech stack: Next.js, Shopify Storefront API, Stripe, Contentful. Increased conversion rate by 22% and reduced bounce rate by 15%.
Trading Dashboard for Quant Firm
Real-time data visualization with sub-second updates. Tech stack: React 18, D3.js, WebSocket, AWS Lambda. Handled 10,000+ trades per minute with no UI lag.
Enterprise Internal Tool Platform
Replaced a legacy Angular app with a modern React SPA. Tech stack: React 18, TypeScript, Apollo Client, GraphQL. Reduced page load times by 60% and increased developer productivity by 40%.
Collaborative Document Editor
Built a CRDT-based real-time editor for a legal tech startup. Tech stack: React 18, Yjs, WebRTC, Redis. Allowed 10 simultaneous editors with conflict resolution, reduced review cycle by 70%.
Why teams hire us.
Fixed Price, Not Hourly
Every project gets a fixed quote after our 2-week Roadmap phase. No hourly billing, no surprise invoices. You know the budget before we write a line of code.
Senior Engineers Only
Every developer on your project has 8+ years of React experience. We have no junior developers. Your code is built by people who have shipped 200+ products.
12-Week Delivery
We deliver production-ready frontends in 12 weeks on average. Our process is designed for speed without cutting corners — 98% of projects finish on time.
Full Code Ownership
Source code lives in your repository from day one. You own everything we build, trade secrets, libraries included. No lock-in, no license fees.
Compliance Built In
We build HIPAA, PCI-DSS, and SOC 2 compliant applications. Our team knows how to handle PII, audit logs, and security controls without slowing down.
Production-Ready from Day 1
Every project ships with CI/CD, monitoring, tests, and deployment scripts. Your team can merge changes and deploy within hours after handover.
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.
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