Senior Custom Backend Development AgencyBackend Development
We build scalable backend systems for your product. Senior engineers, fixed price, 8-12 week delivery.
IRPR is a senior custom backend development agency. Our engineers build RESTful APIs, GraphQL endpoints, and microservices using Node.js, Python, Go, and .NET Core.
We deliver source code, CI/CD pipelines, and Docker containers in 8-12 weeks. Fixed pricing ranges from $80K to $250K per project. Our backend systems meet HIPAA, PCI-DSS, and SOC 2 compliance.
Founders building a SaaS MVP need a backend that scales. Enterprise teams migrating from monoliths to microservices. CTOs who need a reliable technical partner without hiring full-time staff.
Types of software we ship.
Custom API Development
Build REST or GraphQL APIs tailored to your business logic. Integrates with Stripe, Twilio, and Auth0.
Microservices Architecture
Decompose monolithic apps into independent services using Docker and Kubernetes. Improves scalability and deployment speed.
Database Design and Optimization
Design relational and NoSQL schemas. Use PostgreSQL, MongoDB, and Redis for high-performance queries.
Authentication and Authorization Systems
Implement OAuth 2.0, JWT, and RBAC with integration to Okta, Azure AD, or Auth0.
Real-Time Data Processing Backend
Use WebSockets, Kafka, or AWS Kinesis to handle streaming data for live dashboards or chat.
Cloud Backend Infrastructure
Provision AWS, GCP, or Azure infrastructure with Terraform. Includes auto-scaling, load balancing, and monitoring.
Legacy System Modernization
Refactor old .NET or Java monoliths into modern, maintainable backend services. Reduces technical debt.
Event-Driven Backend Systems
Build event buses with RabbitMQ, SQS, or Pub/Sub to decouple services and improve fault tolerance.
We build for every business type.
SaaS Companies
Fintech
Healthcare
Ecommerce
Enterprise
Why hire a senior custom backend development agency
A senior team builds backend systems that last, scale, and stay compliant.
Generic freelancers often cut corners on architecture and testing. IRPR's senior engineers design for scale from day one, using patterns like CQRS and event sourcing when appropriate. We also ensure every endpoint is documented in OpenAPI/Swagger.
Our backend handles 10x traffic spikes without rewrites because we stress-test with tools like k6 and Artillery before launch. We have shipped over 200 backends across 50 countries with 98% on-time delivery.
Generic dev shop vs senior custom backend development agency
The difference is experience, process, and outcomes.
Many agencies promise senior engineers but deliver juniors. IRPR staffs every project with engineers who have 10+ years of experience building production backends.
We also use a structured process: Idea -> Roadmap -> Product -> Release. This keeps projects on time and on budget.
- assigns junior devs to save costs
- no formal architecture review
- hourly billing with scope creep
- code delivered with minimal tests
- no CI/CD setup included
- unclear ownership of code
- senior engineers with 10+ years experience
- architecture review and API design doc
- fixed price after 1-week roadmap
- unit, integration, and load tests
- CI/CD with GitHub Actions and Docker
- full IP and code ownership
Our process for building your custom backend
From idea to production in 8-12 weeks with clear milestones.
Every project starts with a 1-week Roadmap phase where we define scope, tech stack, and a fixed price. Then we build your backend in 2-week sprints.
You get a staging environment after 4 weeks for early feedback. Final release includes documentation, monitoring, and a post-launch support period.
What ships with your custom backend
You get everything needed to run and maintain your system independently.
IRPR delivers more than just code. We provide the full operational toolkit so your team can deploy, monitor, and debug without relying on us.
- Source code in your GitHub repository
- CI/CD pipeline with GitHub Actions and Docker
- Sentry error tracking and New Relic monitoring
- Docker Compose setup for local development
- API documentation with Swagger/OpenAPI
- Postman collection for manual testing
- Load testing script with k6 or Artillery
- Architecture diagram in Draw.io or Miro
- Database migration scripts and seed data
- Deployment guide and runbook
What we ship in this practice.
Custom API for a fintech lending platform
Built a loan origination API handling $50M in monthly applications. Tech stack: Node.js, TypeScript, PostgreSQL, Redis, and Stripe API. Reduced manual underwriting time by 80%.
Real-time order processing for ecommerce
Developed an event-driven backend that processes 10,000 orders per minute. Used RabbitMQ, Python, and AWS ECS. Achieved 99.9% uptime during Black Friday traffic spikes.
Multi-tenant SaaS backend for analytics
Designed a shared-nothing multi-tenant architecture with PostgreSQL row-level security. Supports 500+ tenants with isolated data. Tech: Go, GraphQL, and Prometheus.
Healthcare EHR system backend
Built a HIPAA-compliant backend for a telehealth startup. Implemented FHIR APIs, encrypted storage, and audit logs. Stack: Python/Django, PostgreSQL, AWS KMS.
Cloud migration for a logistics company
Migrated a legacy monolith to microservices on AWS EKS. Reduced deployment time from 3 hours to 15 minutes. Used Terraform, Docker, and Kafka.
Microservices decomposition for an enterprise ERP
Decomposed a monolithic ERP into 12 microservices. Improved team velocity by 4x. Stack: .NET Core, SQL Server, Azure Service Bus.
Why teams hire us.
Senior engineers only
Every IRPR project is staffed by engineers with 10+ years of experience. No junior developers, no outsourcing. You work directly with the team building your backend.
Fixed price from week 2
We deliver a fixed quote after the 1-week Roadmap phase. No hourly billing, no surprises. 98% of our projects stay within budget.
8-12 week delivery
Our process is designed for speed. 98% of our projects ship within the quoted timeline. You get an MVP backend in 8 weeks, full system in 12.
Full code ownership
You keep all source code, documentation, and IP. We ship everything to your repository. No hidden licenses, no lock-in.
Built for scale and compliance
We design backend systems to handle 10x traffic and meet HIPAA, PCI-DSS, SOC 2 standards. Every project includes load testing and security hardening.
Post-launch support included
We include 4 weeks of production support after launch. Your system stays stable while your team ramps up. Extended support available on retainer.
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.