Senior Startup Web App Development ServicesWeb App Development
We build your web app with senior engineers only. Fixed price delivery in 8-12 weeks.
IRPR provides senior startup web app development services for founders who need production-ready applications fast. We use Next.js, React, Node.js, Python, and PostgreSQL to build scalable web apps.
Each project ships in 8-12 weeks with a fixed price between $80K and $250K. We handle HIPAA, PCI-DSS, and SOC 2 compliance from day one.
Founders raising seed rounds need a functional MVP to show investors. CTOs at funded startups need senior engineers to build core product without hiring delays. Product managers need a reliable team to ship features on schedule.
Types of software we ship.
SaaS Dashboard
Build a multi-tenant SaaS dashboard with user management, billing via Stripe, and real-time analytics. Next.js + PostgreSQL.
Marketplace Platform
Create a two-sided marketplace with vendor onboarding, payment splits, and search. Uses Elasticsearch for product discovery.
Customer Portal
Develop a white-labeled customer portal with SSO, support ticketing, and document management. Integrates with Salesforce.
Internal Tool
Build internal ops tools for inventory, order management, or CRM. React frontend with a Python backend and PostgreSQL.
Data Visualization App
Create interactive dashboards with D3.js and Chart.js. Handles real-time data streams from Kafka and stores in ClickHouse.
E-commerce Store
Launch a custom e-commerce store with headless CMS, Stripe payments, and inventory sync. Built on Next.js and Shopify Storefront API.
Booking System
Develop a booking platform with calendar integration, payment processing, and automated reminders. Uses Twilio for SMS alerts.
Social Platform
Build a social network with feeds, messaging, and content moderation. Uses Firebase for real-time chat and Algolia for search.
We build for every business type.
B2B SaaS startups
Healthcare startups
Fintech startups
E-commerce startups
EdTech startups
Why senior engineers matter for startup web app development
Startups cannot afford junior mistakes. Our senior engineers ship faster and with fewer bugs.
Every IRPR project is staffed with engineers who have 10+ years of experience. They have built production systems handling millions of users at companies like Google, Amazon, and Microsoft. This experience means your web app is architected correctly from the start.
Our track record: 200+ products shipped across 50+ countries. 98% of projects delivered on time. Average timeline 12 weeks from kickoff to launch. We maintain 99.9% uptime for all production apps.
Generic dev shop vs IRPR senior team
Most agencies assign junior developers to save costs. IRPR assigns only senior engineers.
Generic shops often bill hourly with no fixed scope. They use offshore teams with limited English and timezone overlap. Code quality suffers, deadlines slip, and you pay for their learning curve.
IRPR works differently. Every project gets a fixed price quote after a 2-week Roadmap phase. You work directly with senior engineers who write clean, testable code. We own the outcome, not the hours.
- Junior developers learning on your dime
- Hourly billing with no cap
- Scope creep without change orders
- No compliance expertise
- Code dumps with no documentation
- Slow response times
- Senior engineers with 10+ years experience
- Fixed price from the Roadmap phase
- Clear scope with change control included
- HIPAA, PCI-DSS, SOC 2 built-in
- Full documentation and CI/CD pipeline
- US timezone overlap, async-first
Our 4-phase process for startup web app development
From idea to launch in 12 weeks, no surprises.
We break every project into four phases. Each phase has a clear deliverable and a go/no-go decision point. This keeps your investment aligned with progress.
You know exactly what you get at each step. No hidden work, no ambiguous milestones.
What ships with your startup web app
Every deliverable includes these items by default.
No hidden extras. These items are included in your fixed price.
- Source code in your private GitHub repo
- CI/CD pipeline on GitHub Actions
- Staging and production environments on AWS
- Sentry error tracking with alerts
- Datadog monitoring dashboard
- PostgreSQL database with automated backups
- REST API with Swagger documentation
- React/Next.js frontend with responsive design
- Stripe integration for payments
- User authentication via Auth0
What we ship in this practice.
SaaS analytics dashboard for a fintech startup
Built a multi-tenant analytics dashboard with real-time data streaming. Reduced time-to-insight from 4 hours to 5 minutes. Tech stack: Next.js, Python, PostgreSQL, Kafka.
Telemedicine platform for a healthcare startup
Developed a HIPAA-compliant telemedicine app with video calls and EHR integration. Enabled 200+ consultations per day within 3 months of launch. Tech stack: React, Node.js, Twilio, AWS.
E-commerce marketplace for a retail startup
Created a multi-vendor marketplace with automated payout splits. Increased vendor onboarding speed by 60%. Tech stack: Next.js, Stripe, Elasticsearch, Shopify Storefront API.
Learning management system for an edtech startup
Built a FERPA-compliant LMS with interactive quizzes and progress tracking. Reduced content creation time for instructors by 40%. Tech stack: React, Python, PostgreSQL, AWS.
Customer portal for a real estate startup
Developed a white-labeled portal with property search and document signing. Cut client onboarding time from 2 weeks to 3 days. Tech stack: Next.js, Node.js, DocuSign API, MLS integration.
Internal inventory tool for a logistics startup
Built an inventory management system with barcode scanning and real-time stock updates. Reduced inventory discrepancies by 90%. Tech stack: React, Python, PostgreSQL, Zebra scanner SDK.
Why teams hire us.
Senior engineers only, no juniors
Every developer on your project has 10+ years of experience and has shipped production systems at scale. We do not staff juniors to reduce costs. Our engineers average 12 years of experience.
Fixed price from the start
You get a fixed price quote after the 2-week Roadmap phase. No hourly billing, no surprise invoices, no scope creep charges. 80% of our projects finish on budget.
8-12 week delivery
We ship your MVP in 8-12 weeks, not 6 months. Our senior team works efficiently with clear scope and daily standups. 98% of projects deliver on time.
Full code ownership
You own all source code, documentation, and IP. We hand over full repository access at launch. No vendor lock-in, no recurring license fees.
Built-in compliance
We build HIPAA, PCI-DSS, and SOC 2 compliance into your web app from day one. No costly retrofits. Our compliance checklist is part of every project.
Post-launch support included
We provide 30 days of post-launch support for bug fixes and minor tweaks. Extended maintenance plans available at $5K/month. Average response time under 2 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.