Senior Website Development Agency ServicesDevelopment Agency
We build production-grade websites with senior engineers only. Get a custom site in 8 to 12 weeks at a fixed price.
IRPR builds senior-grade websites using React, Next.js, and Node.js with headless CMS options like Strapi or Contentful. Every site is optimized for Core Web Vitals and passes WCAG 2.1 AA accessibility standards.
A typical senior website ships in 8 to 12 weeks with a fixed price between $80K and $250K. We include performance audits, responsive design, CI/CD pipelines, and a shared staging environment from day one.
Our clients include founders who need a market-ready site before a Series A round, CTOs who want scalable frontends without framework bloat, marketing teams that require a high-traffic blog with a custom CMS, and agencies that white-label our work for their own clients.
Types of software we ship.
Corporate Website
Built with Next.js + Sanity CMS for global brands that need multi-language content and fast iteration.
Ecommerce Storefront
Custom Shopify or BigCommerce frontend with Algolia search and Klaviyo integration for conversions.
SaaS Landing Page
High-converting static site with A/B testing, form capture via HubSpot, and Vercel deployment.
Marketing Site with CMS
Strapi or Contentful backend with a flexible component-based frontend for agile content teams.
High-Traffic Blog / Publication
Next.js with incremental static regeneration and Cloudflare CDN to handle millions of monthly visits.
Membership Site
Stripe subscription flows, NextAuth authentication, and protected pages with SSR caching.
Portfolio / Agency Site
Minimal, animated frontend built with Remix or Astro and integrated CMS for case studies.
Custom Web Application
React / Vue frontend with PostgreSQL or Firebase backend, ready for user dashboards and admin panels.
We build for every business type.
Startups
Enterprise
Agencies
Nonprofits & Education
Ecommerce & Retail
Senior website development agency results
Our clients see measurable improvements in load times, conversions, and developer productivity.
IRPR has shipped over 200 websites and web applications across more than 50 countries. Our average project delivers in just 12 weeks, and 98% of projects finish on or ahead of schedule.
Every site we build meets a 99.9% uptime SLA and passes Core Web Vitals with a performance score above 90 on mobile and desktop. We use Lighthouse CI to catch regressions before they reach production.
What sets senior website development apart
Most dev shops promise senior talent but deliver junior work. We don't.
Generic agencies often assign one senior architect and a team of juniors to save costs. That leads to inconsistent code quality, missed deadlines, and tech debt you pay for later.
IRPR only hires engineers with 10+ years of experience. Every team member is senior-level. We write all code in-house, review every PR, and ship a fully documented codebase with automated tests.
- One senior, several juniors
- Weekly billing with scope creep
- No end-to-end ownership
- Code delivered without tests
- No CI/CD pipeline
- No performance guarantee
- All senior engineers (10+ yr avg)
- Fixed price after roadmap
- Full ownership from concept to launch
- 100% test coverage on critical paths
- GitHub Actions CI/CD built in
- 99.9% uptime SLA
How we deliver your senior website
A four-phase process built for speed and quality.
We start with a two-week Roadmap phase where we define scope, architecture, and a fixed price. Then we move to Design & Prototype, where we create high-fidelity mockups in Figma and validate with real users if needed.
Development & QA runs in two-week sprints with automated tests and continuous deployment. Launch & Support includes a staged rollout, load testing, and a 30-day warranty on all code.
What ships with your senior website
Every project includes production-grade deliverables that many agencies charge extra for.
You get the full source code in your private GitHub repository, a CI/CD pipeline using GitHub Actions, and real-time error tracking with Sentry. All deployments go through a staging environment before production.
We also deliver a style guide, component library in Storybook, SEO meta data structure, and a performance report with Lighthouse scores. No black box, no hidden tooling costs.
- Source code in your private GitHub repo
- CI/CD pipeline with GitHub Actions
- Sentry error tracking
- Responsive, mobile-first CSS architecture
- WCAG 2.1 AA accessibility compliance
- Automated unit and integration tests (80%+ coverage)
- Lighthouse performance score >= 90
- SEO meta data template and sitemap
- Storybook component library
- Post-launch 30-day warranty
What we ship in this practice.
High-performance landing page for a B2B SaaS startup
Built a Next.js landing page with dynamic A/B testing and personalized content. Reduced bounce rate by 35% and increased trial sign-ups by 50% in 3 months. Tech stack: Next.js, Vercel, HubSpot CMS.
Multi-language corporate site for a global fintech
Delivered a React site with i18n and Stripe integration for 12 regions. Load times improved by 60% using static generation and edge caching. Tech stack: React, Next.js, Contentful, AWS CloudFront.
Ecommerce storefront for a DTC clothing brand
Replaced a slow Shopify theme with a custom Next.js frontend and Algolia search. Page load dropped from 6s to 1.2s, conversion rate increased by 22%. Tech stack: Next.js, Shopify Storefront API, Klaviyo.
Membership site for an online education platform
Built a membership site with Stripe subscriptions and a custom dashboard for students. Reduced churn by 15% with automated email sequences via SendGrid. Tech stack: Next.js, Node.js, PostgreSQL, Stripe.
Marketing site with CMS for a healthtech startup
Created a Strapi-powered site with reusable components for blog posts, case studies, and team pages. Content editors publish in hours instead of days. Tech stack: React, Strapi, Cloudflare Workers.
High-traffic blog for a media company
Migrated a WordPress site to a Next.js static site with incremental regeneration. Handles 5 million monthly visits with zero downtime and sub-100ms TTFB. Tech stack: Next.js, Cloudflare CDN, Contentlayer.
Why teams hire us.
Fixed price, not hourly
Every project receives a fixed quote after the Roadmap phase (week 2). No hourly billing, no surprise invoices, and no scope creep charges.
Senior engineers only
Our team averages 12 years of experience. No juniors, no offshore ratio tricks. Every engineer contributes directly to your codebase.
Full code ownership
You get 100% ownership of all source code, designs, and assets from day one. We never use proprietary frameworks or lock you into a platform.
Proven delivery record
We have shipped over 200 websites across 50+ countries. 98% of projects finish on time or early, with an average delivery of 12 weeks.
Built for performance and compliance
Every site targets Lighthouse scores above 90, supports WCAG 2.1 AA, and includes automated CI/CD. We also handle SOC 2, HIPAA, or PCI-DSS if needed.
Quick start, no friction
You can kick off a discovery call today and start the Roadmap phase within 1 week. We handle all contracts, NDAs, and onboarding paperwork in parallel.
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.