Senior Custom SaaS Development ServicesCustom SaaS
We build production-ready SaaS platforms using Next.js, Node.js, and AWS. 8-12 week MVPs with senior engineers only.
IRPR provides senior custom SaaS development services using Next.js, Node.js, PostgreSQL, AWS Lambda, and Stripe. Every senior engineer has 10+ years experience building multi-tenant SaaS platforms with complex billing, authentication, and real-time features.
We ship a fully functional SaaS MVP in 8-12 weeks. Pricing is fixed between $80K and $250K after the Roadmap phase. All projects meet compliance standards: SOC 2, HIPAA, and PCI-DSS as needed.
Our clients include startup founders needing an MVP to raise seed funding, enterprise product managers replacing legacy systems, VC-backed companies scaling from $1M to $10M ARR, and CTOs who want fixed-price development with no surprises.
Types of software we ship.
Multi-tenant SaaS platform
A single codebase serving hundreds of tenants with isolated data. Uses PostgreSQL row-level security and AWS ECS.
White-label SaaS solution
Rebrandable platform for agencies reselling under their own brand. Built with Next.js and a custom theme engine.
SaaS with recurring billing
Subscription management with Stripe Billing, dunning, and usage-based pricing. Integrates Stripe Connect for marketplaces.
API-first SaaS product
RESTful and GraphQL APIs with developer portals and rate limiting. Uses Fastify and Apollo Server.
Enterprise SaaS with SSO
SAML, OAuth 2.0, and SCIM support for enterprise identity. Integrates Okta, Azure AD, and Auth0.
SaaS with real-time collaboration
Live editing and presence using WebSockets and Yjs. Built with Socket.io and Redis pub-sub.
SaaS with AI/ML features
Integrates OpenAI, TensorFlow, or custom models for recommendations, classification, and automation. Uses AWS SageMaker.
SaaS marketplace
Two-sided platform connecting buyers and sellers with escrow payments. Uses Stripe Connect and custom commission logic.
We build for every business type.
Professional services
Healthcare
Local services
Commerce
Nonprofits and education
Why senior custom SaaS development matters
SaaS platforms require deep architecture decisions that impact scalability, security, and cost.
Junior developers often produce monoliths that fail under load or charge per-tenant. Senior engineers at IRPR design multi-tenant systems with row-level security, horizontal scaling, and CI/CD pipelines from day one.
We have shipped 200+ SaaS products across 50 countries. Our average MVP timeline is 12 weeks, with 98% on-time delivery. 99.9% uptime is standard for our production deployments.
The difference between generic shops and senior-level SaaS development
Not all development teams can build a compliant, scalable SaaS product that attracts investors.
Many generic shops assign junior developers who learn on your project. They use hourly billing, produce vague timelines, and miss compliance requirements. You end up with technical debt and security gaps.
IRPR assigns senior engineers only, delivers on a fixed price after the Roadmap phase, and bakes in SOC 2, HIPAA, or PCI-DSS from the start. You own the code, the infrastructure, and the roadmap.
- Junior devs learning on your project
- No dedicated security architect
- Hourly billing with scope creep
- No compliance planning
- Monolith architecture
- No CI/CD or error tracking
- Senior engineers with 10+ years each
- Security architect on every project
- Fixed price after Roadmap phase
- HIPAA, PCI-DSS, SOC 2 readiness
- Multi-tenant with row-level security
- CI/CD pipeline and Sentry monitoring
Our process for senior custom SaaS development services
We follow a structured 4-phase process that eliminates surprises and delivers a production-ready product.
Each project starts with a 2-week Discovery phase to define scope, user stories, and technical architecture. The Roadmap phase produces a fixed price and timeline, validated by senior engineers.
The Build phase executes in 2-week sprints with weekly demos. The Release phase handles deployment, monitoring, and handover of all source code and infrastructure.
What ships with every senior custom SaaS project
You get a complete production system, not just code. Every deliverable is tested, documented, and ready to scale.
All source code is placed in your private GitHub repo. CI/CD pipelines are configured on GitHub Actions with automated testing and deployment to staging and production.
We include Sentry error tracking, Datadog monitoring, and a Postman collection for your API. All infrastructure is defined as code using Terraform.
- Source code in your GitHub repo
- CI/CD pipeline with GitHub Actions
- Sentry error tracking
- Datadog performance monitoring
- Terraform infrastructure as code
- Postman API collection and documentation
- Row-level security for multi-tenant data
- Unit and integration tests (80%+ coverage)
- Stripe or custom payment integration
- 30 days of post-launch support
What we ship in this practice.
Property management SaaS
Built for a real estate firm managing 5,000 units. Reduced manual data entry by 8 hours per week. Tech stack: Next.js, PostgreSQL, Stripe, AWS Lambda.
Patient portal SaaS
HIPAA-compliant portal for a network of 50 clinics. Cut patient check-in time by 40%. Tech stack: React, Node.js, PostgreSQL, AWS with HIPAA-eligible services.
Subscription billing SaaS
PCI-DSS compliant billing engine for a fintech startup. Reduced churn by 30% with usage-based pricing. Tech stack: Node.js, PostgreSQL, Stripe, AWS.
Learning management SaaS
Built for an edtech company with 20,000 students. Increased course completion rates by 50%. Tech stack: Next.js, Firebase, Zoom API, Stripe.
Field service SaaS
Scheduling and dispatch platform for a manufacturing firm. Increased jobs per technician by 20%. Tech stack: React Native, Node.js, Twilio, AWS.
Analytics dashboard SaaS
Real-time logistics dashboard for a freight company. Achieved 99.9% uptime with 1-second data refresh. Tech stack: D3.js, Node.js, Kafka, AWS.
Why teams hire us.
Fixed price, not hourly
Every senior custom SaaS project gets a fixed quote after the Roadmap phase. No hourly billing, no surprise invoices, no scope creep charges.
Senior engineers only
We hire no juniors. Every engineer on your project has 10+ years of experience building SaaS platforms on AWS and modern stacks.
8-12 week MVPs
We ship production-ready SaaS MVPs in 8 to 12 weeks. Our record is 6 weeks for a simple subscription app.
Full code ownership
You own 100% of the source code, infrastructure, and intellectual property from day one. No licenses, no lock-in.
Compliance built-in
We build HIPAA, PCI-DSS, and SOC 2 compliance into the architecture from the start. No retrofitting, no rework.
200+ products shipped
We have shipped over 200 products across 50 countries. Our clients include Y Combinator startups, Fortune 500 companies, and nonprofits.
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.