Best Website Modernization DevelopersModernization Developers
We rebuild outdated web apps from legacy jQuery and PHP to React and Next.js. Ship a modern, scalable product in 8-12 weeks with fixed pricing.
IRPR builds modern, performant web applications by migrating legacy codebases to React, Next.js, and Node.js. We strip out jQuery, old ASP.NET, or PHP and rebuild with component-based architectures and REST/GraphQL APIs.
Every modernization project ships in 12-14 weeks with a fixed price of $80K-$250K. We handle database migration, UI redesign, and deployment on AWS or Vercel with CI/CD. Compliance covered: SOC 2, PCI-DSS, HIPAA, FERPA, GDPR.
Buyers hire us senior engineers who manage the full rewrite: CTOs at SaaS companies with a 10-year-old Angular app that is slow to maintain, VP Engineering at an ecommerce brand needing PCI-compliant replatforming, and product owners at health tech firms migrating HIPAA-bound portals from ColdFusion to React.
Types of software we ship.
Legacy web app migration
Move from AngularJS or jQuery to React or Vue. Includes database refactoring and API redesign.
UI/UX redesign and rebuild
Redesign the frontend with Figma prototypes and build with Tailwind CSS and Storybook.
Custom admin panel modernization
Replace flat-file or outdated backend UIs with React Admin or custom dashboards connected to REST APIs.
Ecommerce platform replatforming
Migrate from Magento, Shopify, or WooCommerce to a headless Next.js + Shopify Hydrogen or custom CMS.
API and backend modernization
Rewrite legacy Rails, Django, or .NET backends as FastAPI, Node.js, or Go services with containerization.
Progressive web app (PWA) upgrade
Add offline support, push notifications, and app-like UX to an existing website using Workbox and Lighthouse.
CMS migration and headless conversion
Move content from WordPress or Drupal to a headless CMS like Strapi or Contentful with a React frontend.
Cloud migration and DevOps setup
Lift and shift a monolith to AWS ECS or Kubernetes with Terraform, Sentry, and Datadog monitoring.
We build for every business type.
for SaaS and software companies
for ecommerce and retail
for healthcare and fintech
for media and publishing
for real estate and property tech
Why you need the best website modernization developers
Old codebases cost you time, money, and security.
A website built on jQuery 1.8 from 2015 has 12 known CVEs and runs 300ms slower per page than a React SPA. IRPR modernizes your web app to React or Next.js with Node.js backends, cutting load times by 40-60% and eliminating security debt.
Our team has migrated 60+ legacy apps to modern stacks. One client in insurance saw 50% fewer support tickets after rewriting their 200-page ASP.NET portal in React with server-side rendering. The project took 10 weeks and cost $120K.
The difference between IRPR and generic dev shops
Not all agencies deliver clean, maintainable modernizations.
Generic shops often rewrite into another monolithic framework with poor code quality. They skip testing, ignore CI/CD, and leave you with a new legacy app in 6 months.
IRPR ships code you own, with tests, containerization, and monitoring from day one. We use Next.js, TypeScript, Playwright for end-to-end tests, and Vercel or AWS for deployment.
- Rewrites into another monolithic structure
- No automated testing (manual QA only)
- No CI/CD pipeline setup
- Unpredictable hourly billing
- No performance benchmarks before/after
- You do not own the code until final payment
- Ships modular React or Next.js with API separation
- Includes Playwright E2E and Vitest unit tests
- Sets up GitHub Actions CI/CD with Vercel or AWS
- Fixed price from $80K, no hidden fees
- Runs Lighthouse and WebPageTest before and after
- You own full source code from day one
Our 4-step website modernization process
We follow a repeatable process to de-risk your migration.
Every project begins with a 2-week Roadmap phase where we audit your codebase, define the new architecture, and give a fixed quote. We then build the modern app in 2-week sprints and ship by week 12.
You get a production-ready app with zero downtime migration. We handle DNS cutover, SSL setup, and database migration so your users see no disruption.
What you get when you hire IRPR for website modernization
Every project includes these deliverables by default.
We do not cut corners. Every modernization project ships with a full set of production-grade artifacts.
- Source code in your private GitHub or GitLab repository
- CI/CD pipeline with GitHub Actions and Vercel or AWS deployment
- Sentry error tracking and crash reporting
- Datadog or New Relic performance monitoring
- Playwright end-to-end tests covering all critical user flows
- Lighthouse report showing 90+ performance and accessibility scores
- Docker containers for each microservice
- Architecture decision record (ADR) document for every major choice
- Post-migration load test results (k6 or Artillery)
- 1 month of post-launch support and bug fixes
What we ship in this practice.
SaaS customer portal migration from AngularJS to React
A B2B SaaS company with a 100k-user portal running on AngularJS 1.6. IRPR rebuilt the frontend in React with TypeScript and integrated with their existing Rails API. Load time dropped from 4.2s to 1.1s. The project shipped in 10 weeks for $150K.
Ecommerce site replatform from Magento to Next.js
An apparel brand with 500K monthly visitors had a Magento 1 site with slow page loads and PCI compliance gaps. IRPR moved them to headless Next.js with Shopify Hydrogen. Page speed improved 55%, conversion rate increased 12%. Fixed price $200K, completed in 14 weeks.
Healthcare patient portal HIPAA modernization
A hospital network needed to modernize their patient portal from ColdFusion to a HIPAA-compliant React app. IRPR migrated the frontend, implemented role-based access with Auth0, and deployed on AWS with encrypted data stores. Downtime was zero. Project: 12 weeks, $180K.
Fintech payment dashboard from jQuery to Next.js
A fintech startup handling $20M in monthly transactions had a PCI-DSS compliant dashboard built on jQuery. IRPR rewrote it in Next.js with server-side rendering, added real-time transaction updates via WebSockets, and integrated Stripe. Build time: 8 weeks, $100K.
Real estate MLS portal modernization
An MLS provider with 50,000 agents had a PHP-based property search site loading in 6 seconds. IRPR rebuilt with Next.js, integrated Elasticsearch for instant search, and deployed on Vercel. Search latency dropped to under 200ms. Project: 10 weeks, $130K.
EdTech learning management system rewrite
A university LMS built on legacy ASP.NET needed a modern FERPA-compliant interface. IRPR rebuilt the student and instructor dashboards in React with a Node.js backend and Postgres database. 30,000 users migrated with 99.9% uptime. Timeline: 12 weeks, $160K.
Why teams hire us.
Senior engineers only
IRPR hires only senior-level developers with 7+ years of experience. Every engineer on your team has migrated at least 5 legacy apps to modern stacks. No juniors, no learning on your project.
Fixed price, no surprises
After the 2-week Roadmap phase, you get a fixed price for the entire modernization. If we discover more work, we eat the cost. Our clients save an average of 30% compared to hourly billing agencies.
We own the migration risk
We use a phased cutover strategy with feature flags and canary deployments. If something breaks, we roll back in under 5 minutes. We have a 98% on-time record across 200+ projects.
You keep your code
You own the full source code from day one. We deliver everything in your GitHub repository with no licensing restrictions. You can take the code to any other team after the project ends.
We include compliance by default
Every modernization project ships with SOC 2, HIPAA, PCI-DSS, or FERPA compliance built in. We set up encrypted databases, audit logging, and role-based access controls without extra charge.
We are fast to start
Most projects begin within 1-2 weeks of signing. We work async-first with daily standups via Slack and weekly demos. You get progress screenshots every 48 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.