Senior Custom Backend Development Firm for Scalable SystemsCustom Backend
We build production-ready backends for high-load applications. Get a fixed-price quote in 2 weeks, delivery in 8-12 weeks.
IRPR builds senior-level custom backends using Node.js, Python (Django/FastAPI), Go, and Rust. We design APIs, microservices, event-driven architectures, and data pipelines.
Every project ships with a dedicated senior engineer, CI/CD pipeline on GitHub Actions, auto-scaling AWS infrastructure, and Sentry error tracking. Delivery in 8-12 weeks, fixed price from $80K to $250K.
We work with CTOs at funded startups scaling their product, VP Engineering at SaaS companies needing a PCI-DSS compliant backend, founders building MVP for Series A, and enterprise teams migrating legacy systems to cloud-native.
Types of software we ship.
API Gateway Development
Centralized authentication, rate limiting, and routing for your microservices using Kong or AWS API Gateway.
Microservices Architecture
Decoupled services with RabbitMQ, Docker, and Kubernetes for independent scaling and deployment.
Real-Time Data Processing
Event-driven systems using Apache Kafka or Redis Streams. Process millions of events per minute.
Custom CRM Backend
RESTful and WebSocket APIs for CRM features with PostgreSQL, Elasticsearch, and Stripe billing.
Ecommerce Backend
Cart, inventory, and payment processing with Shopify API integrations, Stripe, and PCI-DSS compliance.
SaaS Backend (Multi-Tenant)
Single codebase, isolated data per tenant using PostgreSQL schemas, Redis caching, and Okta SSO.
Data Ingestion Pipeline
Batch and streaming pipelines with Apache Spark, Snowflake, and S3 for analytics and ML.
Authentication and Authorization System
OAuth 2.0 / OpenID Connect with Auth0 or custom JWT, RBAC, and session management.
We build for every business type.
SaaS Companies
Fintech Firms
Healthcare Organizations
Ecommerce Businesses
Media and Content Platforms
Why senior-level backend development matters
Your backend is the foundation of your product. A junior team will cost you in uptime, security, and scalability.
Our senior engineers have built backends for apps handling 10 million daily active users. They use battle-tested patterns and tools like PostgreSQL, Redis, and AWS Lambda. Every line of code is reviewed by a peer.
We ship with CI/CD, automated tests, and Sentry error tracking from day one. This means zero unexpected downtime and faster feature delivery. Our 98% on-time record proves it.
The difference between generic shops and IRPR
Most agencies staff juniors and bill by the hour. We do the opposite.
When you hire a generic dev shop, you often get mid-level developers who learn on your dime. They ship buggy code, skip testing, and leave you with technical debt.
IRPR staffs only senior engineers with 8+ years of experience. We write automated tests, maintain CI/CD, and enforce security best practices. No handoffs, no surprises.
- Junior or mid-level developers
- No CI/CD from the start
- Hourly billing with scope creep
- Ignored compliance (HIPAA, PCI)
- Manual testing only
- No post-launch support
- Senior engineers only (8+ years)
- CI/CD from day one (GitHub Actions)
- Fixed price, no surprises
- HIPAA/PCI/SOC 2 built in
- Automated tests + Sentry error tracking
- 30 days post-launch support included
Our process: from idea to production backend
We follow a structured four-phase approach to deliver your custom backend on time and on budget.
Every project starts with a Roadmap phase (week 1-2) where we define the scope, tech stack, and fixed price. No ambiguity, no hidden costs.
We then move to Architecture, Development, and Deployment. Each phase includes a review milestone with you. By week 8, your backend is live and monitored.
What ships with your custom backend
Every project delivers a production-ready backend with everything you need to scale.
- Source code in your private GitHub repo
- CI/CD pipeline in GitHub Actions
- Sentry error monitoring and alerting
- AWS infrastructure as code (Terraform)
- API documentation (OpenAPI / Swagger)
- Unit and integration tests (Pytest / Jest)
- Database migrations with version control
- 30-day post-launch support and bug fixes
What we ship in this practice.
Real-time fraud detection backend
Built with Apache Kafka and Python FastAPI. Processed 10,000 transactions per second, reduced false positives by 40%. Industry: Fintech.
HIPAA-compliant patient management backend
Node.js + PostgreSQL with encrypted data at rest and in transit. Cut patient intake time by 70% using Twilio SMS integration. Industry: Healthcare.
Multi-tenant SaaS backend for marketing platform
Ruby on Rails with PostgreSQL schemas and Redis caching. Reduced infrastructure costs by 35% through auto-scaling. Industry: SaaS.
Ecommerce backend with Stripe checkout
Go microservices handling 100,000 daily orders. PCI-DSS Level 1 compliant. Increased checkout success rate by 25%. Industry: Ecommerce.
Real estate MLS data ingestion pipeline
Python + Amazon S3 + Snowflake. Ingested 2 million property records per day from 50+ MLS feeds. Industry: Real Estate.
Video streaming backend for education platform
Node.js + AWS MediaConvert + DynamoDB. Served 500,000 concurrent viewers during peak hours. Industry: EdTech.
Why teams hire us.
Senior engineers only
Every project is staffed with developers who have 8+ years of experience. No junior engineers, no training period, no handoffs. You get the architect and coder in one person.
Fixed price, not hourly
We quote a fixed price in the Roadmap phase (week 2). No hourly billing, no surprise invoices, no scope creep charges. The price you see is the price you pay.
Built-in compliance
HIPAA, PCI-DSS, SOC 2, and FERPA are not afterthoughts. Our engineers build compliance into the architecture from day one. We have delivered 50+ compliant backends.
CI/CD from day one
We set up GitHub Actions with automated tests, linting, and deployment on the first commit. Every change is deployable in minutes. Your team gets a production-ready pipeline.
98% on-time delivery
Out of 200+ projects, 98% shipped on the original timeline. We use precise estimation in the Roadmap phase and stick to it. No missed deadlines.
30-day post-launch support
After go-live, we stay on for 30 days to fix bugs, optimize performance, and help your team take over. We also provide documentation and runbooks.
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.