Experienced Startup Web App Development VendorWeb App
Ship your MVP in 8-12 weeks with a fixed price. IRPR builds web apps for startups using senior engineers and no fluff.
IRPR builds custom web applications for startups using React, Next.js, Node.js, and PostgreSQL. We focus on shipping production-ready MVPs that handle real users from day one.
Each project ships with a full CI/CD pipeline on GitHub Actions, Sentry error tracking, and cloud infrastructure on AWS. Timelines run 8-12 weeks with fixed pricing from $80K to $250K. We comply with SOC 2 for SaaS and can handle HIPAA for healthcare startups.
We work with founders raising their Series A who need a technical co-founder level build. CTOs at funded startups who need to scale engineering fast. Non-technical founders who need a reliable vendor to turn their idea into code. Product managers launching a new vertical within an enterprise.
Types of software we ship.
SaaS MVP
Launch a multi-tenant SaaS platform with subscription billing. Uses Stripe, Auth0, and PostgreSQL.
Marketplace platform
Two-sided marketplace with real-time chat and escrow payments. Integrates with Twilio and Stripe Connect.
Customer portal
Self-service portal with SSO, document uploads, and ticketing. Built with Clerk and AWS S3.
Internal dashboard
Real-time admin dashboard for monitoring KPIs and managing users. Uses D3.js and ClickHouse.
API-first backend
RESTful or GraphQL API with rate limiting and caching. Uses Node.js, Redis, and PostgreSQL.
Real-time collaboration app
Live editing and presence via WebSockets. Powered by Socket.IO and Redis Pub/Sub.
Data-intensive analytics app
Handle millions of records with dashboards and exports. Uses BigQuery, Python, and Metabase.
E-commerce platform
Headless commerce store with custom checkout. Integrates with Shopify API and Stripe.
We build for every business type.
fintech startups
healthtech startups
SaaS startups
marketplace startups
e-commerce startups
Why startups choose IRPR for web app development
We deliver working software fast, not slide decks.
We have shipped over 200 web apps for startups in 50+ countries. Every project is built by senior engineers with an average of 10 years of experience. No junior developers, no outsourced teams.
Our fixed price model means you know the cost from week two. 95% of our projects finish within budget. We use battle-tested tools like React, Node.js, and AWS so your app scales from day one.
The difference between generic dev shops and IRPR
Most agencies bill hourly and change scope. We don't.
Generic dev shops put junior developers on your project and bill by the hour. Scope creep eats your budget, and you have no idea when the app will ship.
IRPR assigns senior engineers who have built apps like yours before. We scope the work in a 1-week Roadmap phase and give you a fixed price. No surprises.
- Hourly billing that bleeds budget
- Junior developers learning on your dime
- No CI/CD pipeline
- Code stays on their servers
- Scope creep with every change request
- 6-12 month delivery timelines
- Fixed price from week two
- Senior engineers only (10+ years avg)
- CI/CD pipeline on GitHub Actions
- Full source code ownership
- Controlled scope with Roadmap phase
- 8-12 week delivery
Our process for building your web app
We go from idea to deployed product in 4 phases.
We start with a discovery week to understand your users, market, and technical needs.
Then we move into sequential sprints with clear milestones and weekly demos.
What ships with every web app project
No black boxes. Everything is yours from day one.
You own the code, the infrastructure config, and the deployment pipeline. No licensing fees, no monthly retainers.
- Source code in your GitHub repo
- CI/CD pipeline on GitHub Actions
- Sentry error and performance monitoring
- Cloud infrastructure on AWS (ECS/Lambda)
- Domain setup with Cloudflare DNS
- PostgreSQL database with automated backups
- Stripe or Braintree payment integration (if needed)
- Auth0 or Clerk user authentication
- Storybook component library (for React apps)
- API documentation with Swagger/OpenAPI
What we ship in this practice.
Subscription billing portal for a SaaS startup
Built a Stripe-powered billing portal that reduced churn by 15% by allowing customers to manage plans themselves. Tech stack: Next.js, Node.js, PostgreSQL, Stripe, Auth0.
Marketplace platform for freelance services
Developed a two-sided marketplace with real-time chat and escrow payments. Onboarded 500 sellers in the first month. Tech stack: React, GraphQL, Node.js, Twilio, Stripe Connect.
Real-time collaboration dashboard for a remote team startup
Built a live-updating dashboard with WebSockets that lets team members edit tasks simultaneously. Reduced meeting time by 20%. Tech stack: React, Socket.IO, Redis, PostgreSQL.
Mobile-first health tracking app for a digital health startup
Created a HIPAA-compliant web app for patients to log daily symptoms and share with providers. Integrated with Epic EHR via FHIR API. Tech stack: React Native (web view), Python, FastAPI, AWS HealthLake.
Data analytics dashboard for a fintech startup
Delivered a real-time analytics dashboard for a payment processing startup, showing transaction volumes and fraud alerts. Processed 1M+ transactions/month. Tech stack: React, D3.js, ClickHouse, Node.js.
Custom e-commerce platform for a DTC brand
Built a headless commerce platform with custom checkout flows and subscription management. Increased average order value by 25%. Tech stack: Next.js, Shopify API (headless), Node.js, PostgreSQL, Stripe.
Why teams hire us.
Fixed price from week two
After a 1-week paid discovery, we give you a fixed quote for the entire project. No hourly billing, no surprise invoices — 95% of our projects stay within budget.
Senior engineers only — no juniors
Every developer on your team has 10+ years of experience building web apps for startups. We don't train people on your dime.
Full code ownership
You own the source code, the CI/CD scripts, and the cloud infrastructure from day one. No proprietary frameworks, no lock-in.
8-12 week delivery, not months
We ship production-ready MVPs in 8-12 weeks. Our process is optimized for speed without sacrificing quality.
Built for scale from day one
We use AWS auto-scaling, database indexing, and caching layers so your app handles thousands of users without breaking.
Post-launch support included
Every project includes 30 days of post-launch support with bug fixes and minor adjustments. We stay until you are confident.
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.