Legacy Website Modernization DevelopersModernization
We replace outdated websites with modern, fast platforms. Fixed price, 12-week delivery, full code ownership.
IRPR builds modern replacements for legacy websites. We use Next.js, headless CMS like Contentful or Strapi, and microservices on AWS to deliver fast, secure, and scalable platforms.
Every project ships in 12-14 weeks. Fixed pricing ranges from $80,000 to $250,000. We handle HIPAA, PCI-DSS, and SOC 2 compliance from day one.
Our clients include CTOs at insurance companies stuck on old ASP.NET, founders of ecommerce brands running Magento 1, healthcare providers needing HIPAA-compliant patient portals, and media publishers replacing outdated WordPress sites.
Types of software we ship.
Headless CMS migration
Move from WordPress or Drupal to Contentful or Strapi with a decoupled frontend. Faster content publishing and better performance.
React re-platforming
Rewrite legacy jQuery or AngularJS apps in React with TypeScript. Component-based architecture for maintainability.
PWA upgrade
Turn a legacy website into a progressive web app. Offline support, push notifications, and install prompts on mobile.
Ecommerce replatforming
Migrate from Magento 1 or custom PHP carts to Shopify Plus or BigCommerce. Improve checkout flow and reduce cart abandonment.
Portal modernization
Replace legacy customer portals (Java Server Faces, SharePoint) with modern React or Vue SPAs. Faster load times and better UX.
Micro-frontend migration
Break a monolith into independently deployable frontend modules using Module Federation. Scale teams and ship faster.
API re-architecture
Replace outdated REST APIs with GraphQL or gRPC. Reduce payload size and improve developer experience for modern frontends.
Design system implementation
Create a reusable component library in Storybook with React or Vue. Consistent UI across all modernized properties.
We build for every business type.
Enterprise
Ecommerce
Media
SaaS
Education
Why hire legacy website modernization developers
We ship every project with a clear scope, fixed timeline, and full ownership.
IRPR has shipped 200+ modernized web properties. We use a repeatable four-phase process: Audit, Plan, Build, Deploy. Each phase has defined deliverables and milestones.
Our senior engineers average 10+ years of experience. We work async-first with daily overlap hours so you stay informed without endless meetings.
How we compare to generic dev shops
Most agencies overpromise and underdeliver. IRPR is different.
Generic dev shops often give vague timelines, no compliance guarantees, and hourly billing that balloons costs. We do the opposite.
IRPR provides a fixed price after a 2-week Roadmap phase. We build with HIPAA, PCI-DSS, and SOC 2 in mind from day one. Source code is yours at the end.
- Vague project timeline (6-18 months)
- Hourly billing with no cap
- No compliance expertise
- Code stays with agency
- Junior developers on your project
- No performance guarantees
- Fixed 12-14 week delivery
- Fixed price after 2-week Roadmap
- Built-in HIPAA, PCI-DSS, SOC 2
- Full source code ownership
- Senior engineers only (10+ years)
- 99.9% uptime SLA
Our 4-phase legacy modernization process
We follow a proven framework: Idea, Roadmap, Product, Release.
Every project starts with a 1-week Audit where we analyze your legacy codebase, tech debt, and compliance gaps. We deliver a written assessment.
In the Roadmap phase (week 2), we produce a fixed-price proposal with wireframes, architecture, and a 12-week build plan. Approval means we start building immediately.
What ships with every modernization project
Every deliverable is production-ready and fully owned by you.
We do not hand over a zip file. You get a complete modern platform with all infrastructure, documentation, and training materials.
Our checklist ensures nothing is missed. Every item is verified before the final handoff.
- Source code in your private GitHub repository
- CI/CD pipeline on GitHub Actions or GitLab CI
- Automated end-to-end tests (Playwright or Cypress)
- Design system in Storybook with React components
- Migration script for existing content and data
- Performance report (Lighthouse score 90+)
- Security audit and penetration test report
- Deployment runbook and developer documentation
- 30 days of post-launch support and monitoring
What we ship in this practice.
Legacy insurance portal modernization
A Fortune 500 insurance company replaced a 15-year-old Java Server Faces portal with a Next.js PWA. Load time dropped from 8 seconds to under 1 second. Customer satisfaction scores rose by 34%. Tech stack: Next.js, AWS Lambda, PostgreSQL, Auth0.
Magento 1 to Shopify Plus replatform
A DTC brand with 500 SKUs moved from end-of-life Magento 1 to Shopify Plus. The new site increased conversion rate by 15% and reduced maintenance costs by 40%. Tech stack: Shopify, React, Stripe, Klaviyo.
HIPAA-compliant patient portal upgrade
A regional hospital chain migrated a legacy ASP.NET patient portal to a modern React SPA. Achieved HIPAA compliance with automated logging and encryption. Reduced data entry time for nurses by 8 hours per week. Tech stack: React, Node.js, AWS, Twilio.
Media website re-platform to headless CMS
A news publisher with 2 million monthly visitors migrated from WordPress to Contentful with a Next.js frontend. Article publish time dropped from 4 hours to 30 minutes. Page speed improved 72%. Tech stack: Contentful, Next.js, Vercel, Algolia.
SaaS platform migration from AngularJS to React
A B2B SaaS company rewrote its AngularJS application in React and TypeScript. Bug reports decreased by 40% and feature delivery speed doubled. Tech stack: React, TypeScript, GraphQL, AWS ECS.
Legacy CRM to modern SPA for real estate
A real estate brokerage replaced a 10-year-old PHP CRM with a React single-page app. Agents adopted the new system rapidly, increasing lead follow-up by 25%. Tech stack: React, Firebase, SendGrid, Google Maps API.
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. The price you see is the price you pay.
12-week delivery guarantee
We ship modernized websites in 12-14 weeks on average. Our process is designed to eliminate delays. If we miss the deadline, we discount the next phase.
Full source code ownership
You own everything we build: frontend, backend, infrastructure code, design system. No licensing fees, no locked-in vendor. Your data stays yours.
Senior engineers only
Every developer on your project has 10+ years of experience. No junior devs, no offshore sweatshops. You talk directly with the engineers building your product.
Compliance built in
We handle HIPAA, PCI-DSS, SOC 2, and GDPR from day one. Our audit phase identifies gaps, and we remediate them during the build. No last-minute compliance scrambles.
Design system included
We create a reusable component library in Storybook as part of every project. This gives your team a consistent UI and speeds up future feature development.
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.