Senior Full Stack App Development FirmFull Stack
We build production-grade apps with React, Node.js, Python, and AWS. 8-12 week MVPs with fixed pricing and no junior engineers.
IRPR is a senior full stack app development firm. We build web apps, mobile apps, and SaaS platforms using React, Next.js, Node.js, Python, PostgreSQL, and AWS. Every engineer has 10+ years of experience. No juniors, no offshore teams.
We deliver a production-ready MVP in 8-12 weeks. Pricing is fixed from the Roadmap phase (week 2). Typical projects range from $80K to $250K. We handle compliance for HIPAA, PCI-DSS, SOC 2, and FERPA.
Founders hire us when they need a technical co-founder team. CTOs hire us to extend their engineering capacity without hiring. Product managers hire us to ship a validated product before raising seed funding.
Types of software we ship.
SaaS application development
Multi-tenant apps with Stripe billing, Auth0, and AWS ECS. Built for scale from day one.
Custom CRM development
Salesforce or HubSpot alternatives with custom pipelines, automated workflows, and real-time sync.
Healthcare app development
HIPAA-compliant patient portals, telehealth platforms, and EHR integrations using FHIR APIs.
Fintech platform development
PCI-DSS compliant payment gateways, lending platforms, and financial dashboards with Plaid and Stripe.
Ecommerce platform development
Headless Shopify or custom storefronts with Algolia search, Stripe payments, and inventory management.
Mobile app development
React Native or Flutter apps with push notifications, offline sync, and native device features.
AI chatbot development
GPT-4 powered assistants with custom knowledge bases, Slack integration, and usage analytics.
Data analytics dashboard development
Real-time dashboards with Metabase, Redshift, and dbt. Custom charts and export to PDF/CSV.
We build for every business type.
Technology companies
Healthcare organizations
Financial services firms
Ecommerce and retail brands
Real estate and property tech
Why hire a senior full stack app development firm
A senior full stack app development firm brings experienced engineers who ship fast and build for production.
Junior developers make mistakes that cost time and money. A senior full stack engineer at IRPR has shipped 10+ production apps before working on yours. They know how to set up CI/CD pipelines, write automated tests, and deploy to AWS without downtime.
We use a fixed-price model. After the Roadmap phase (week 2), you get a fixed quote for the entire build. No hourly billing, no surprise invoices. Our average MVP ships in 10 weeks with 98% on-time delivery.
How we differ from other development firms
Most agencies sell you junior talent at senior rates. IRPR only hires senior engineers and charges fixed prices.
We interviewed 200+ developers in 2023. We hired 12. Every engineer has 10+ years of experience and has shipped at least 5 production apps. We do not use offshore teams or outsource to third parties.
Our process is transparent. You get a weekly demo, a shared Slack channel, and a project dashboard with real-time progress. We use GitHub for code, Linear for tasks, and Sentry for error tracking.
- Assigns junior or mid-level developers
- Charges by the hour with no budget cap
- Uses offshore teams with time zone lag
- Delivers code without tests or documentation
- No compliance experience (HIPAA, PCI, SOC 2)
- Takes 6+ months for a simple MVP
- Assigns only senior engineers with 10+ years experience
- Fixed price from the Roadmap phase (week 2)
- US-based senior engineers with 4+ hour overlap
- Ships with tests, CI/CD, and full documentation
- HIPAA, PCI-DSS, SOC 2, and FERPA compliant
- Delivers a production-ready MVP in 8-12 weeks
Our senior full stack app development process
We follow a 4-phase process: Idea, Roadmap, Product, Release. Each phase has clear deliverables and a fixed timeline.
Phase 1 (Idea): We validate your concept with user research and competitive analysis. You get a product brief in 1 week.
Phase 2 (Roadmap): We define the technical architecture, data model, and feature list. You get a fixed quote and a 12-week timeline. This phase costs $5,000 and is applied to the build.
What ships with your senior full stack app
Every project includes production-grade deliverables. You own everything from day one.
We do not build throwaway prototypes. Every app we build is designed for production use. You get a fully tested, deployed, and monitored application at the end of the engagement.
- Full source code in your private GitHub repo
- CI/CD pipeline on GitHub Actions or GitLab CI
- Automated test suite with 80%+ coverage
- Deployed to AWS (ECS, RDS, S3, CloudFront)
- Sentry error tracking and performance monitoring
- Datadog or CloudWatch for infrastructure monitoring
- API documentation (Swagger/OpenAPI)
- User documentation and admin guide
- Post-launch support for 30 days
What we ship in this practice.
SaaS analytics platform for B2B sales teams
Built a multi-tenant analytics dashboard that ingests data from Salesforce, HubSpot, and Stripe. Reduced manual reporting time by 15 hours per week. Tech stack: Next.js, Node.js, PostgreSQL, Metabase, AWS ECS.
HIPAA-compliant telehealth platform
Developed a video consultation app with Twilio Video, Stripe billing, and Epic EHR integration. Enabled 500+ consultations per week. Tech stack: React, Python, FastAPI, PostgreSQL, AWS, Twilio.
PCI-DSS compliant payment gateway
Built a white-label payment processing platform with Plaid, Stripe Connect, and custom fraud detection. Processed $2M in transactions in the first month. Tech stack: Node.js, React, PostgreSQL, Redis, AWS.
Headless ecommerce store for a DTC brand
Created a headless Shopify storefront with Algolia search, custom checkout, and Klaviyo email integration. Increased conversion rate by 22%. Tech stack: Next.js, Shopify Storefront API, Algolia, Stripe.
Property management platform for a real estate firm
Built a custom CRM with MLS integration, automated lease renewals, and tenant portal. Reduced vacancy rate by 18%. Tech stack: React, Node.js, PostgreSQL, AWS, Twilio SMS.
AI-powered customer support chatbot
Developed a GPT-4 chatbot with custom knowledge base, Slack integration, and usage analytics. Handled 70% of support tickets without human intervention. Tech stack: Python, LangChain, Pinecone, Next.js, AWS Lambda.
Why teams hire us.
Senior engineers only, no juniors
Every engineer has 10+ years of experience and has shipped at least 5 production apps. We do not have junior developers. You get a senior full stack engineer from day one.
Fixed price, not hourly
After the Roadmap phase (week 2), you get a fixed price for the entire build. No hourly billing, no surprise invoices. Typical projects range from $80K to $250K.
8-12 week MVPs
We ship a production-ready MVP in 8-12 weeks. Our record is 6 weeks for a fintech app. You see working software every Friday with weekly demos.
Compliance built in
We have built HIPAA-compliant apps for healthcare, PCI-DSS compliant apps for fintech, and SOC 2 compliant apps for SaaS. Compliance is not an afterthought.
Full code ownership
You own the source code, the IP, and the deployed infrastructure. We do not use proprietary frameworks. You can take the code to any team after launch.
Post-launch support
We provide 30 days of post-launch support for bug fixes and minor changes. We also offer ongoing maintenance packages starting at $5,000 per month.
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.