Senior UI Frontend Development VendorVendor
We build production-grade user interfaces in 8-12 weeks. Fixed price, senior engineers, code you own.
IRPR is a senior UI frontend development vendor that builds user interfaces for web apps, mobile apps, and design systems. We use React, Next.js, TypeScript, and Tailwind CSS to ship fast, accessible UIs that match your brand guidelines.
Every project delivers a fully responsive UI, a reusable component library, and full documentation. Typical timeline is 8 to 12 weeks. Fixed pricing starts at $80,000 and goes up to $250,000 depending on scope. We support HIPAA, PCI-DSS, and SOC 2 compliance needs.
Our clients include CTOs who need to scale frontend without hiring overhead, product managers launching MVPs with polished UX, design agencies looking for a reliable development partner, and startups that require senior-level execution from day one.
Types of software we ship.
Design System Builder
Build a reusable component library with Storybook and Figma tokens. Includes accessibility and responsive variants.
Single-Page Application (SPA)
React or Vue SPA with client-side routing, lazy loading, and state management via Redux or Zustand.
Progressive Web App (PWA)
Offline-first PWA with service workers, push notifications, and Lighthouse scores above 90.
Dashboard UI
Data-rich dashboards with real-time charts (D3.js, Chart.js), filtering, and export to CSV.
Ecommerce Frontend
Product catalog, cart, checkout flow built with Next.js and Stripe. Optimized for Core Web Vitals.
Mobile App Frontend (React Native)
Cross-platform mobile UI with React Native, animations, and native module integration.
Admin Panel UI
Internal admin panels with role-based access, data tables, file uploads, and audit logs.
Multi-Tenant Frontend
SaaS frontend supporting multiple tenants with custom branding, feature flags, and isolated data.
We build for every business type.
SaaS Startups
Ecommerce Brands
Healthcare Platforms
Fintech Companies
Enterprise Portals
Why a senior UI frontend development vendor matters
The right vendor delivers code that ships fast and scales without rewrites.
A senior UI frontend development vendor brings engineers who have shipped 200+ products across 50 countries. They know how to structure React components, optimize bundle size, and write tests that catch regressions before they hit production.
IRPR assigns only senior engineers with an average of 8 years of experience. We dont use junior or mid-level developers. This means faster delivery, fewer bugs, and code that your internal team can pick up and extend after launch.
The difference between generic dev shops and IRPR
Not all frontend vendors are built the same. Heres what sets a senior team apart.
Most dev shops staff projects with a mix of junior and mid-level developers to keep costs low. This leads to inconsistent code quality, slow velocity, and technical debt that costs more to fix later.
IRPR is a senior-only vendor. Every developer on your project has at least 8 years of experience and has built production UIs for regulated industries like fintech and healthcare.
- Mixed junior and mid-level team
- Hourly billing with no cap
- No design system or documentation
- Slow communication (email only)
- Code ownership unclear
- No post-launch warranty
- Senior-only engineers (8+ years avg)
- Fixed price from the roadmap phase
- Component library with Storybook and Figma
- Daily standups and Slack channel
- Full code ownership transferred
- 12-week warranty on all deliverables
How we build your frontend in 4 phases
From idea to launch, every project follows a structured process that eliminates guesswork.
We start with a 1-week discovery sprint to understand your users, design system requirements, and technical constraints. Then we lock scope and price before any code is written.
Each sprint delivers a working increment of the UI that you can review and test. We ship code to your repository every 2 weeks, and you always know exactly what has been built.
What ships with every frontend project
You get more than just code. Every deliverable is designed to keep your team independent.
We hand over everything needed to maintain and extend the UI without relying on us. That includes source code, design files, and documentation.
We also configure monitoring, error tracking, and analytics so you can see how the frontend performs in production.
- Full source code in your Git repository
- Figma component library matching the code
- Storybook with all component states documented
- CI/CD pipeline (GitHub Actions or GitLab CI)
- Unit and integration tests (jest, React Testing Library)
- Lighthouse performance report (target: 90+)
- Sentry error tracking configured
- Deployment guide with environment variables
- 12-week warranty for bug fixes
What we ship in this practice.
Insurance quote calculator for a fintech startup
Built a multi-step form with real-time pricing API calls. Reduced page load time by 40% and increased quote completion rate by 25%. Tech stack: Next.js, TypeScript, Stripe, Tailwind CSS.
Patient portal for a telemedicine platform
Developed a secure patient dashboard with appointment scheduling and video call integration. Compliant with HIPAA. Tech stack: React, WebRTC, Auth0, PostgreSQL.
Subscription management dashboard for a SaaS company
Created a self-serve dashboard for customers to manage plans, billing, and usage. Reduced support tickets by 60%. Tech stack: React, Chart.js, Stripe, Node.js.
Product catalog and checkout for an ecommerce brand
Built a responsive storefront with filters, search, and one-click checkout. Increased conversion rate by 18%. Tech stack: Next.js, Shopify Storefront API, Tailwind CSS.
Admin panel for a real estate CRM
Developed an internal tool for agents to manage listings, leads, and commission reports. Automated data entry saving 8 hours per week per agent. Tech stack: React, Material-UI, GraphQL, MongoDB.
Student dashboard for an edtech platform
Created a personalized learning interface with progress tracking, quizzes, and notifications. FERPA compliant. Tech stack: Vue.js, Firebase, REST API, Tailwind CSS.
Why teams hire us.
Fixed price, not hourly
Every project gets a fixed quote in the Roadmap phase (week 2). No hourly billing, no surprise invoices, no scope creep charges.
Senior engineers only
We hire from the top 1% of frontend engineers. Average experience is 8 years. No juniors, no mid-level developers. You get a team that ships fast and clean.
12-week warranty included
After launch we fix any bugs or regressions for free for 12 weeks. Your team has time to ramp up without pressure.
Full code ownership
You own every line of code, every Figma file, every Storybook component. No vendor lock-in. No licensing fees.
Compliance-ready from day one
We build UIs that meet HIPAA, PCI-DSS, and SOC 2 requirements. We can generate audit logs, encrypt data in transit, and implement role-based access.
Design + dev integrated
We work from your Figma files or collaborate with your designers. Our engineers understand design tokens, responsive breakpoints, and accessibility standards.
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.