Senior Frontend App Development ConsultantsDevelopment Consultants
Hire senior frontend app development consultants who ship production-ready React apps in 8-12 weeks. Fixed price means no surprises, just clean code.
IRPR builds complex frontend apps with a senior-only team. We use React 18, TypeScript 5, Next.js 13, Tailwind CSS, and GraphQL to deliver fast, accessible user interfaces. Every project starts with an architecture review and ends with a production deployment.
Each engagement ships source code, a CI/CD pipeline on GitHub Actions, Playwright end-to-end tests, and Sentry error tracking. Timeline is 8 to 12 weeks with a fixed price between $80,000 and $250,000. We handle PCI-DSS and HIPAA compliance when needed.
Our typical buyers are early-stage CTOs who need a production frontend in 10 weeks, enterprise teams scaling their web app from 10k to 1M users, and startup founders who want a polished UI without hiring an in-house team. They all want senior engineers, not juniors.
Types of software we ship.
Single-page Application (SPA)
Client-side driven app with React Router and lazy loading. Integrates with REST or GraphQL APIs and uses Zustand for state management.
Progressive Web App (PWA)
Offline-first app with service workers and IndexedDB. Ships lighthouse scores above 90 and push notifications via Firebase Cloud Messaging.
Admin Dashboard
Data-heavy panels with tables, charts, and role-based access. Built with Material-UI, Recharts, and a headless CMS integration.
E-commerce Storefront
Next.js store with SSR, incremental static regeneration, and Algolia search. Connects to Shopify or Stripe for payments.
Real-time Collaboration App
Live user presence and document editing using WebSockets and Y.js. Runs on a Node.js backend with Redis pub/sub.
Mobile App (React Native)
Cross-platform iOS and Android app sharing 90%+ code across platforms. Uses Expo, React Navigation, and native modules.
Design System + Component Library
A shared library of 50+ components with Storybook, Chromatic visual testing, and versioned npm packages. Built with Radix UI primitives.
Interactive Landing Page
High-conversion page with animations (Framer Motion), segmented analytics, and A/B testing via Google Optimize. Ships in 4 weeks.
We build for every business type.
SaaS companies
E-commerce businesses
Fintech companies
Healthcare providers
Media & publishing
What senior frontend app development consultants deliver
You get a team of senior engineers who have built frontends for 200+ products across 50 countries.
IRPR's senior frontend app development consultants average 10+ years of experience. We do not staff juniors or mid-level developers. Every consultant has shipped a production React app to at least 100,000 users.
Our process starts with a two-week Roadmap phase where we define scope, tech stack, and a fixed price. After that, we build in two-week sprints with weekly demos. You see the code live on staging from week 3.
Senior frontend consultants vs. generic dev shops
Not all frontend development agencies are the same. Here is what sets IRPR apart.
Generic dev shops often assign junior developers, switch team members mid-project, and charge hourly without a fixed scope. The result is delayed delivery and bloated costs.
IRPR's senior frontend app development consultants work as a fixed team from day one. We agree on scope in the first 14 days and deliver on time 98% of the time.
- Staffs junior developers with no UI architecture experience
- Charges hourly, scope always changes
- Uses outdated libraries (e.g., AngularJS) to keep costs low
- No automated testing or CI/CD
- Delivers a bloated bundle > 2MB
- No post-launch support included
- Every consultant has 10+ years of frontend experience
- Fixed price locked in after 14-day Roadmap
- Start with React 18, Next.js 13, and TypeScript 5
- Playwright tests run on every pull request
- Bundle size < 200KB with code splitting
- Includes 30 days of production support after launch
How our frontend consultants build your app
Four phases from idea to production. Each phase has a clear output and a fixed timeline.
Phase one is a two-week Roadmap where we wireframe every screen, choose the tech stack, and give you a fixed quote. No payment is taken until you approve the Roadmap.
After approval, we build the MVP in 8-12 weeks. Every two weeks you see a working demo. The final week is security audit, performance tuning, and handover.
Everything that ships with your frontend project
Every IRPR engagement includes these deliverables by default. No hidden fees.
You own everything we build. Source code is in your GitHub repository from sprint one. The CI/CD pipeline is set up on GitHub Actions with automated tests and code quality checks.
We also provide a runbook, architectural diagrams, and a hand-over session for your internal team.
- Source code in your GitHub repo
- CI/CD pipeline on GitHub Actions
- Sentry error tracking and performance monitoring
- Playwright end-to-end tests (100+ test scenarios)
- Lighthouse score report (target >90)
- Component library with Storybook documentation
- Runbook with architecture diagrams
- Dockerized staging environment
- 30 days of production support
- Full ownership of all deliverables
What we ship in this practice.
Real-time trading dashboard
Built a streaming dashboard with 60+ candlestick charts using WebSockets and Recharts. Reduced page load time by 65% through virtual scrolling and lazy loading. Tech stack: React, D3.js, Node.js, Redis.
Telemedicine patient portal
Developed a HIPAA-compliant portal with video scheduling, chat, and medication tracking. Onboarded 12 clinics in the first month. Tech stack: Next.js, WebRTC, PostgreSQL, Twilio.
Subscription box storefront
Created a dynamic product configurator with upsell suggestions using Next.js ISR and Algolia search. Increased conversion rate by 22%. Tech stack: Next.js, Stripe, Tailwind CSS, Contentful.
Content management dashboard
Replaced a legacy jQuery UI with a React admin panel for a media company. Reduced time to publish articles from 4 hours to 30 minutes. Tech stack: React, Material-UI, GraphQL, Firebase.
Online learning platform
Built an interactive course player with quizzes and progress tracking for an edtech startup. Handled 10k concurrent users during launch. Tech stack: Next.js, HLS.js, MongoDB, AWS S3.
Real estate MLS interface
Engineered a property search interface with map integration and saved alerts. Processed 500k listings with sub-second search. Tech stack: React, Leaflet, Elasticsearch, Node.js.
Why teams hire us.
Senior-only team, no juniors
Every IRPR consultant has 10+ years of frontend experience. You never get a junior developer learning on your codebase. Average team seniority is 12 years.
Fixed price from week 2
After the two-week Roadmap we give you a fixed price for the entire project. No hourly billing, no surprise invoices, no scope creep charges. Price stays as agreed.
Two-week kickoff to production
We can start within 1-2 weeks of your first call. The Roadmap phase takes exactly 14 days. You approve every step before we commit.
Async-first with US overlap
Our consultants work from 8 US time zones. We use async communication on Slack and Notion, but schedule daily overlap hours for real-time pairing.
Dedicated project manager
Every engagement includes a senior PM who runs standups, tracks milestones, and updates you weekly. They are a single point of contact.
Full ownership of the code
Source code, CI/CD pipeline, documentation, and design files all go into your own repository. You own everything. No lock-in, no licensing fees.
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.