Custom SaaS Development AgencyDevelopment Agency
We build your SaaS product in 12 weeks with senior engineers. Fixed pricing, no hourly bills, full code ownership.
IRPR is a custom SaaS development agency that builds multi-tenant platforms, API-first backends, and subscription billing systems using Next.js, Node.js, PostgreSQL, and AWS. We ship production-ready SaaS products with Stripe integration, Auth0 authentication, and Datadog monitoring from day one.
Every project starts with a 2-week Roadmap phase for a fixed price of $15,000. Full builds range from $80,000 to $250,000 and complete in 8-12 weeks. We comply with SOC 2, HIPAA, and PCI-DSS standards depending on your industry.
We work with funded startups needing an MVP in 3 months, mid-market companies migrating legacy software to SaaS, and enterprise teams launching internal SaaS tools. Each client gets a dedicated product manager and a team of 3-5 senior engineers.
Types of software we ship.
B2B SaaS platform
Multi-tenant SaaS with role-based access, usage metering, and per-seat billing. Built on AWS ECS with Stripe Billing.
SaaS MVP
Minimum viable product with core features, Auth0, and a payment gateway. Ship in 8 weeks to validate your market.
Enterprise SaaS
Single-tenant or hybrid SaaS with SSO, audit logs, and SLA guarantees. Deployed on dedicated VPCs with SOC 2 controls.
API-first SaaS
Headless SaaS with REST and GraphQL APIs, webhook support, and developer documentation. Integrates with Zapier and HubSpot.
Vertical SaaS
Industry-specific SaaS for healthcare, fintech, or real estate. Includes compliance features like HIPAA audit trails or PCI tokenization.
White-label SaaS
Rebrandable SaaS platform with custom domains, tenant theming, and reseller management. Supports Stripe Connect for payments.
Subscription management SaaS
SaaS focused on recurring billing, dunning, and subscription analytics. Integrates with Recurly, Chargebee, and QuickBooks.
Internal SaaS tool
Custom SaaS for internal teams with Okta SSO, data dashboards, and Slack notifications. Deployed on your own AWS account.
We build for every business type.
Healthcare
Fintech
Real Estate
Ecommerce
Professional Services
Why choose a custom SaaS development agency
Building SaaS requires expertise in multi-tenancy, billing, and infrastructure that most generalist agencies lack.
IRPR has shipped 200+ SaaS products across 50 countries. We use Next.js for frontends, Node.js for APIs, PostgreSQL for data, and AWS ECS for deployment. Every SaaS includes Stripe Billing, Auth0, Sentry error tracking, and Datadog monitoring as standard.
Our fixed pricing model means you know the cost before we write code. The Roadmap phase costs $15,000 and produces a detailed specification with wireframes, data models, and a timeline. Full builds start at $80,000 and complete in 12 weeks.
Generic dev shop vs custom SaaS development agency
Most agencies build one-off apps. We build platforms that scale to thousands of users.
Generic developers often ignore multi-tenancy, subscription logic, and compliance until it is too late. That leads to rewrites, missed deadlines, and security gaps. IRPR builds SaaS right from the first sprint.
We design for scale: database sharding, read replicas, caching layers, and auto-scaling are part of the standard architecture. Every SaaS we deploy supports 10,000+ concurrent users out of the box.
- Single-tenant codebase that requires rewrites
- No subscription billing integration
- No monitoring or alerting set up
- Hourly billing with no cap
- Junior developers with no SaaS experience
- No compliance documentation
- Multi-tenant architecture from day one
- Stripe Billing with usage metering
- Datadog monitoring and PagerDuty alerts
- Fixed price, no surprises
- Senior engineers with 10+ years experience
- SOC 2 and HIPAA compliance built in
How we build your custom SaaS
Our 4-phase process moves from idea to deployment in 12 weeks.
We use the Idea - Roadmap - Product - Release framework. Each phase has clear deliverables and a fixed price. You see progress every week through a live demo environment.
No black boxes. You own the code, the repo, and the infrastructure from sprint one. We deploy to your AWS account so you have full control.
What ships with every custom SaaS
Every SaaS product comes with production-ready infrastructure and documentation.
We do not deliver half-finished code. Every project includes a CI/CD pipeline, automated tests, and a monitoring stack. Your SaaS is ready for customers on day one.
We also include a 30-page technical handbook covering architecture, deployment, and common troubleshooting steps.
- Source code in your GitHub or GitLab repo
- CI/CD pipeline on GitHub Actions or CircleCI
- Stripe Billing with subscription plans and invoicing
- Auth0 or Clerk authentication with SSO support
- Sentry error tracking and performance monitoring
- Datadog infrastructure monitoring and alerts
- PostgreSQL database with automated backups
- AWS ECS or Lambda deployment with auto-scaling
- REST and GraphQL API documentation in Swagger
- 30-page technical handbook and runbook
What we ship in this practice.
Telemedicine SaaS for a healthcare startup
Built a HIPAA-compliant telemedicine platform with video calls, patient scheduling, and EHR integration. Reduced patient wait times by 40%. Tech stack: Next.js, Twilio Video, PostgreSQL, AWS ECS.
Subscription billing SaaS for a fintech company
Developed a usage-based billing engine with Stripe Billing, dunning, and revenue analytics. Handles 500,000 invoices per month. Tech stack: Node.js, Stripe, Redis, AWS Lambda.
Property management SaaS for a real estate firm
Created a multi-tenant property management platform with MLS integration, tenant screening, and lease signing. Automated 80% of manual data entry. Tech stack: Next.js, PostgreSQL, DocuSign, AWS RDS.
Inventory management SaaS for an ecommerce brand
Built a real-time inventory management system with multichannel sync (Shopify, Amazon, WooCommerce). Reduced stockouts by 60%. Tech stack: Next.js, Node.js, MongoDB, AWS ECS.
Learning management SaaS for an edtech company
Developed a FERPA-compliant LMS with course authoring, quiz engines, and progress tracking. Onboarded 10,000 students in the first quarter. Tech stack: Next.js, PostgreSQL, AWS S3, CloudFront.
Field service SaaS for a logistics company
Created a dispatch and route optimization platform with GPS tracking, job scheduling, and driver mobile app. Reduced fuel costs by 15%. Tech stack: React Native, Node.js, Google Maps API, AWS IoT.
Why teams hire us.
Fixed price, not hourly
Every project gets a fixed quote in the Roadmap phase (week 2). No hourly billing, no surprise invoices, no scope creep charges. You know the total cost before we write code.
Senior engineers only
Our team averages 12 years of experience. No junior developers, no offshore rate padding. Every engineer has shipped at least 5 SaaS products before joining IRPR.
SOC 2 and HIPAA compliance built in
We design for compliance from sprint one. Our SaaS platforms include audit logs, encryption at rest and in transit, and access controls. We have passed SOC 2 Type II audits for 3 clients.
Full code ownership
You own the source code, the repository, and the infrastructure. We deploy to your AWS account. No lock-in, no licensing fees, no hidden dependencies.
12-week delivery guarantee
Our average build time is 12 weeks. We have delivered 98% of projects on time. If we miss the deadline, we cover the next sprint at no cost.
Post-launch support included
Every project includes 4 weeks of post-launch support with a dedicated engineer. We fix bugs, handle deployments, and train your team. Extended support is available 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.