Senior Custom SaaS Development FirmDevelopment Firm
We build custom SaaS platforms with senior engineers only. Fixed-price MVPs shipped in 8-12 weeks.
IRPR is a senior custom SaaS development firm. We build scalable SaaS platforms using Next.js, React, Node.js, PostgreSQL, AWS, and Stripe.
We ship production-ready SaaS MVPs in 8-12 weeks with a fixed price of $80K-$250K. Every platform meets compliance standards like SOC 2, HIPAA, or PCI-DSS.
Founders raising seed rounds hire us when they need a technical co-founder. CTOs at mid-market companies hire us to rebuild legacy SaaS. Product managers at enterprises hire us for new internal tools.
Types of software we ship.
Multi-Tenant SaaS Platform
Architected for multiple customers with isolated data. Uses PostgreSQL schemas per tenant or AWS RDS row-level security.
B2B SaaS Application
Built for business clients with role-based access, team management, and SSO via Okta or Auth0.
SaaS MVP
Minimum viable product for your subscription idea. Ships in 8-12 weeks with Stripe billing and a basic dashboard.
Enterprise SaaS
High-volume SaaS for large organizations. Includes audit logging, SLA monitoring, and custom integrations via REST APIs.
Vertical SaaS
Targets a specific industry like healthcare or real estate. Pre-built modules for EHR or MLS data.
SaaS with API
A platform with a public API for third-party integrations. Built on GraphQL with rate limiting and documentation.
Subscription Management Software
Handles pricing tiers, usage metering, invoicing, and dunning. Integrates with Stripe and Recurly.
SaaS Analytics Dashboard
Real-time metrics and reporting for your customers. Uses PostHog, Mixpanel, or custom ClickHouse pipelines.
We build for every business type.
B2B companies
Healthcare
Fintech
Ecommerce
Education
Why choose a senior custom SaaS development firm?
Our track record proves that senior engineers deliver faster and with fewer defects.
We have shipped over 200 SaaS products to clients in 50+ countries. Our senior-only team averages 12+ years of experience, which means we avoid common rookie mistakes and refactoring loops.
Every project uses modern tools like Next.js, TypeScript, and AWS. We enforce code reviews, automated testing, and CI/CD pipelines to keep quality high. Our on-time delivery rate is 98%.
Senior firm vs. generic agency
Not all SaaS development firms are built the same.
Generic agencies often staff with junior developers and sell you hourly. They lack the architecture experience needed for multi-tenant SaaS, compliance, and scaling.
IRPR assigns senior engineers from day one. We use fixed-price contracts based on a detailed Roadmap. No surprises, no handoff between juniors.
- Staffs junior developers
- Charges by the hour
- No compliance expertise
- Code ownership unclear
- Scope creep common
- Delays from handoffs
- Only senior engineers (12+ yrs avg)
- Fixed price after Roadmap
- Built for HIPAA, SOC 2, PCI-DSS
- You own all source code
- Scope locked in Roadmap
- Single senior team end-to-end
Our 4-phase process for SaaS development
We follow a transparent structure from idea to live product.
The Idea phase (week 1) clarifies your goals and market fit. We map out user flows and core features without writing code.
The Roadmap phase (week 2) produces a full spec with architecture decisions, tech stack, and a fixed price. You approve before we build.
What ships with your SaaS platform
Every project includes a standard set of production assets.
We don't just deliver code. You get the infrastructure, monitoring, and docs needed to run your business.
All deliverables are documented and transferred to your team. No black boxes.
- Source code in your GitHub repo
- CI/CD pipeline with GitHub Actions
- Infrastructure as code (Terraform/Docker)
- PostgreSQL database with migrations
- Stripe integration for billing/subscriptions
- Sentry error tracking and monitoring
- Unit and integration tests (80%+ coverage)
- API documentation (OpenAPI/Swagger)
- Admin dashboard with user management
- Deployment guide and runbook
What we ship in this practice.
Subscription billing platform for a SaaS startup
Built a multi-tenant billing system that handles 500k invoices/month. Reduced payment failures by 40% using Stripe Smart Retries. Tech stack: Next.js, Node.js, Stripe, PostgreSQL.
Telemedicine scheduling app for a healthcare provider
Created a HIPAA-compliant platform connecting patients with 200 doctors. Cut scheduling time from 15 minutes to 2 minutes. Tech stack: React, Twilio Video, AWS, EHR integration.
Real estate CRM for a brokerage with 300 agents
Developed a custom CRM synced with MLS and Zapier. Agents saved 8 hours/week on manual data entry. Tech stack: Next.js, PostgreSQL, MLS API, SendGrid.
Learning management system for a corporate training firm
Shipped an LMS that reduced onboarding time by 30% with automated assessments and SCORM support. Tech stack: React, Node.js, MongoDB, AWS S3.
B2B SaaS analytics dashboard for a manufacturing company
Built real-time dashboards connecting to 15 IoT sensors. Management reduced downtime by 25% using anomaly alerts. Tech stack: React, D3.js, WebSockets, InfluxDB.
Ecommerce subscription box management for a D2C brand
Launched a subscription manager handling 10k active subscribers with dynamic box customization. Churn dropped 15% with personalized emails. Tech stack: Next.js, Stripe, SendGrid, Shopify API.
Why teams hire us.
Only senior engineers
We hire engineers with 12+ years of average experience. You never get a junior or a contractor; your project lead has built SaaS before.
Fixed price, not hourly
You get a fixed quote after the 2-week Roadmap. No hourly billing means no surprises - we eat scope creep within the agreed spec.
You own the code
Every line of code goes into your repository. We don't license anything; IP is 100% yours from day one.
Built for compliance
We deliver SaaS ready for SOC 2, HIPAA, or PCI-DSS audits. Our architecture includes audit logs, encryption, and access controls out of the box.
8-12 week MVPs
Your first production release ships in 8-12 weeks. We've done over 200 MVPs - we know how to scope for speed without cutting corners.
Double your money back guarantee
If we miss the deadline by more than 2 weeks, you get a full refund on both the Roadmap and development fees. We are that 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.