Top Scalable Web App Development CompanyWeb App Development
We build apps that handle 100,000 users from day one. 200+ products shipped, 12-week MVPs.
IRPR builds scalable web applications using React, Node.js, PostgreSQL, and AWS auto-scaling architectures. We design each app to handle traffic spikes from 1,000 to 100,000 concurrent users without performance drops.
A typical project ships in 8-12 weeks with fixed pricing between $80,000 and $250,000. Every app is built with SOC 2 compliance in mind and includes load testing, horizontal scaling, and CDN caching.
We work with SaaS founders who need a platform ready for rapid growth, enterprise teams migrating legacy monoliths to microservices, startups launching MVPs that must work at launch, and ecommerce brands building marketplaces that handle millions of transactions.
Types of software we ship.
SaaS Platform
Multi-tenant architectures with billing, user management, and per-tenant scaling. Stripe integration included.
Ecommerce Marketplace
Handles thousands of product listings and concurrent checkouts using Elasticsearch and Redis caching.
Real-Time Dashboard
WebSockets and server-sent events for live metrics. Used by logistics and fintech teams.
API Backend
REST or GraphQL APIs with rate limiting and auto-scaling via AWS Lambda and API Gateway.
Social Network MVP
Multi-Tenant CRM
Data isolation per client with PostgreSQL row-level security. Ready for 500+ tenants.
Payment Processing App
PCI-DSS compliant, integrates with Stripe, Braintree, and Adyen for recurring billing.
IoT Data Pipeline
Ingests millions of sensor events per hour using Kafka, Spark, and Redshift for analytics.
We build for every business type.
Tech Startups
Ecommerce
Healthcare
Fintech
Enterprise SaaS
What Makes a Web App Scalable?
Scalability means your app works under any load without crashing or slowing down.
IRPR builds stateless backends that can spin up new servers in seconds. We use load balancers, database read replicas, and content delivery networks to handle traffic from 1 user to 1 million users without code changes.
Every app goes through a load test that simulates 10x your expected peak traffic. We set up auto-scaling rules on AWS or GCP so your infrastructure grows and shrinks with demand. Your first 100,000 users cost the same per transaction as your first 100.
IRPR vs. Generic Development Shops
Not all agencies know how to build apps that scale. Here is what separates IRPR.
Generic shops often build monolithic apps that work for 100 users but fail at 10,000. They skip load testing, use shared databases, and don't plan for traffic spikes. You end up rewriting the whole app within six months.
IRPR designs for scale from day one. We choose stateless microservices, database sharding, and async queues. Your app handles growth without rework.
- Monolithic architecture only
- No load testing done
- Single database without replication
- Manual server scaling
- No CDN or caching strategy
- Rewrites needed at 10K users
- Microservices or modular monolith
- 10x peak load test included
- Read replicas and sharding
- AWS/GCP auto-scaling setup
- CDN + Redis caching built in
- Scales to 1M users without rework
Our Process for Building Scalable Web Apps
We ship production-ready, scalable applications in 12 weeks or less.
Every project starts with a 2-week Roadmap phase where we define the architecture, database schema, and scaling strategy. We deliver a documented plan with fixed pricing before any code is written.
You get weekly builds with CI/CD pipelines, live staging environments, and automated tests. By week 10 you have a fully functional MVP ready for beta users.
What Ships With Every Scalable Web App
You get more than just code. Every project includes these deliverables by default.
Every app comes with a production-ready infrastructure, automated testing, and deployment pipelines. You do not need to hire a DevOps team separately.
IRPR ensures you can take over development immediately. All code is in your GitHub repo from day one.
- Source code in your private GitHub repo
- CI/CD pipeline with GitHub Actions and staging environment
- Auto-scaling AWS or GCP infrastructure defined in Terraform
- Load test results using k6 (10x target traffic)
- Sentry error tracking and New Relic performance monitoring
- PostgreSQL database with read replicas and automated backups
- React or Next.js frontend with responsive design
- API documentation using Swagger or Postman collections
- Docker containers for local development
- 1 hour of post-launch support included
What we ship in this practice.
SaaS analytics platform for a startup
Built a real-time dashboard that ingests 50 million events per month using Kafka and Node.js. Reduced query latency by 80% with Redis caching. Scaled from 100 to 10,000 users in the first quarter.
Ecommerce marketplace handling Black Friday traffic
Developed a multi-tenant marketplace with Stripe Connect, auto-scaling on AWS, and CloudFront CDN. Handled 500,000 concurrent users during peak sale without any downtime.
Telemedicine platform for a healthcare provider
Created a HIPAA-compliant video consultation app with WebRTC and end-to-end encryption. Supports 2,000 concurrent sessions with less than 200ms latency. Reduced patient wait times by 40%.
Payment gateway for a fintech company
Built a PCI-DSS compliant payment processor using Node.js, PostgreSQL, and Stripe. Processes 10,000 transactions per minute with 99.99% uptime. Reduced chargebacks by 25% with fraud detection models.
Social networking MVP for a media startup
Launched a real-time feed and messaging app with React, Firebase, and AWS Lambda. Onboarded 200,000 users in the first 30 days without any performance issues. Integrated with Stripe for premium subscriptions.
Travel booking platform for an OTA
Developed a multi-supplier booking engine that aggregates flight and hotel data via APIs. Handles 1 million searches per day with sub-second response times using Elasticsearch and Redis. Increased conversion rate by 15%.
Why teams hire us.
Fixed price, not hourly billing
Every project gets a fixed quote during the Roadmap phase. No time tracking, no surprise invoices. If we need more effort, we absorb it.
Senior engineers only
IRPR does not hire juniors. Every engineer has 7+ years of experience building distributed systems. You work directly with the person writing the code.
Async-first global team
Our team spans 12 time zones, so work continues around the clock. You get daily updates and can book overlapping hours for live calls.
Compliance built in
We deliver apps that pass SOC 2, HIPAA, PCI-DSS, and GDPR audits. Our architecture includes encryption at rest and in transit, access logs, and data isolation.
Full code ownership
From day one, all source code, documentation, and infrastructure scripts are in your repositories. You own every line. No licenses or lock-in.
12-week delivery guarantee
We ship a production-ready MVP in 12 weeks or less. 98% of our projects finish on time. If we are late, you pay nothing for the extra weeks.
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.