Top Custom Backend Development AgencyBackend Development
We build scalable backend systems for apps and SaaS. Move from idea to production in 8-12 weeks with a fixed price.
IRPR builds custom backends for web apps, mobile apps, and AI systems. We use Node.js, Python, Go, Ruby on Rails, PostgreSQL, MongoDB, and AWS with Docker and CI/CD pipelines.
Every project ships a complete backend with REST or GraphQL APIs, database schema, authentication, logging, and monitoring. Timeline is 8-12 weeks. Fixed price ranges from $80K to $250K. We support HIPAA, PCI-DSS, and SOC 2 compliance.
Who hires us: CTOs needing to scale a backend for growth, startup founders building an MVP, product managers replacing a legacy backend, and enterprise teams requiring a compliant custom API.
Types of software we ship.
REST API development
Build stateless REST APIs with Express.js or Django REST Framework. Includes rate limiting, caching, and Swagger docs.
GraphQL API development
Create flexible GraphQL APIs using Apollo Server or Hasura. Supports real-time subscriptions and single endpoint queries.
Microservices architecture
Decompose monoliths into microservices with Docker, Kubernetes, and message brokers like RabbitMQ or Kafka.
Event-driven systems
Build event-driven architectures using Apache Kafka or AWS EventBridge for decoupled, scalable data processing.
Authentication and authorization
Implement OAuth 2.0, JWT, and SSO with Auth0 or Okta. Supports role-based access control (RBAC) and MFA.
Real-time backend (WebSocket)
Add real-time features with Socket.io or WebSockets. Handles chat, live updates, and collaborative editing.
Database design and optimization
Design normalized schemas in PostgreSQL or MySQL. Includes indexing, query optimization, and data migration scripts.
Cloud backend (AWS/Azure)
Deploy on AWS Lambda, ECS, or Azure Functions with auto-scaling, load balancing, and CloudWatch monitoring.
We build for every business type.
E-commerce and retail
Healthcare and life sciences
Fintech and financial services
SaaS and platform companies
Enterprise and internal tools
Why custom backend development matters
Off-the-shelf backends limit your growth. A custom backend gives you full control over performance, security, and features.
IRPR has shipped 200+ custom backends across 50 countries. Our engineers use Node.js, Python, and Go to build systems that handle millions of requests per day. Every backend includes automated CI/CD, error tracking with Sentry, and 99.9% uptime on AWS.
We follow a 4-phase process: Idea, Roadmap, Product, Release. In weeks 1-2 we define the architecture and data model. By week 12 your backend is live with monitoring, logging, and documentation.
How IRPR differs from generic dev shops
Most backend agencies bill hourly, skip compliance, and ghost clients. IRPR does the opposite.
Generic dev shops often deliver incomplete APIs with no documentation or testing. They change requirements mid-project and surprise you with extra fees. Compliance is an afterthought.
IRPR gives you a fixed price from week 2. All engineers are senior-level with 7+ years experience. Compliance (HIPAA, PCI, SOC 2) is designed in from day one. You get full code ownership and a documented API.
- Hourly billing, no fixed price
- Junior-heavy team, high turnover
- No compliance planning
- Delivered code without tests
- Vague timelines, 6+ months
- No post-launch monitoring
- Fixed price from Roadmap phase
- Senior engineers only, average 10 years
- Built-in HIPAA, PCI, SOC 2 compliance
- Unit tests, integration tests, CI/CD pipeline
- 8-12 week delivery guarantee
- Sentry monitoring, PagerDuty alerts included
Our backend development process
We turn your idea into a production backend in 4 phases. No fluff, no scope creep.
Phase 1: Idea. You tell us what the system needs to do. We assess your requirements, constraints, and compliance needs. This phase takes 1 week and ends with a written brief.
Phase 2: Roadmap. We produce a detailed architecture diagram, API contract, database schema, and a fixed price quote. This is week 2 and costs $5,000, credited to the build.
What ships with every backend
Every deliverable includes these production-ready artifacts. No extra charges.
We write code as if you will maintain it yourself. Every commit is documented. Every API has endpoint descriptions. You get a repo that is deployable within an hour.
Beyond code, we include infrastructure as code (Terraform or CloudFormation) so you can replicate the environment. All secrets are managed via Vault or AWS Secrets Manager.
- Source code in your GitHub or GitLab repo
- CI/CD pipeline with GitHub Actions or CircleCI
- Sentry error tracking and performance monitoring
- Docker images for local development
- API documentation in Swagger or Postman
- Database schema migration scripts
- Unit and integration tests (coverage > 80%)
- Readme with setup and deploy instructions
- Environment variable templates (.env.example)
- Runbook for on-call engineers
What we ship in this practice.
E-commerce checkout backend
Built a scalable checkout API for an online retailer handling 5,000 orders/day. Integrated with Stripe, ShipStation, and Mailgun. Reduced cart abandonment by 20%. Stack: Node.js, PostgreSQL, Redis, AWS ECS.
HIPAA-compliant patient data API
Developed a patient data exchange API for a telemedicine startup. Handles PHI with AES-256 encryption, audit logs, and BAA. Enabled 10 clinics to go live in 2 months. Stack: Python (FastAPI), PostgreSQL, AWS Lambda, CloudHSM.
Payment processing microservices
Replaced a monolithic payment system with 12 microservices for a fintech firm. Supports 5 payment gateways, real-time fraud scoring with Sift, and 99.99% uptime. Reduced transaction latency from 3s to 200ms. Stack: Go, Kafka, CockroachDB, Kubernetes.
Real-time analytics backend for SaaS
Built an event ingestion pipeline for a B2B SaaS platform. Processes 10 million events/day using Kafka streams. Dashboards update in under 5 seconds. Stack: Node.js, Kafka, ClickHouse, Grafana.
Social media platform backend
Designed a backend to support 1 million users with real-time feeds, notifications, and media uploads. Handles 500 posts/second using WebSocket clusters. Stack: Ruby on Rails, PostgreSQL, Redis, AWS S3, CloudFront.
Inventory management system for logistics
Built a custom inventory backend for a 3PL warehouse. Integrates with 5 carrier APIs and barcode scanners. Reduced manual data entry by 8 hours per day. Stack: Django, PostgreSQL, Celery, AWS Fargate.
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 cost before we write a line of code.
Senior engineers only
Our team averages 10 years of backend experience. No juniors, no outsourced code. Every engineer has shipped production systems that handle millions of users.
8-12 week MVP guarantee
From kickoff to production is 8-12 weeks. We have delivered 200+ projects on this timeline. If we miss the deadline, we discount the final invoice.
Compliance by default
We build HIPAA, PCI-DSS, and SOC 2 compliant backends from day one. Includes encryption, audit logs, access controls, and BAA agreements.
100% code ownership
You own all source code, documentation, and infrastructure scripts. No licensing fees, no lock-in. You can take the code to any team.
US-based project management with global talent
Your project manager is based in the US and works your time zone. Engineers are senior-level across 3 time zones, ensuring overlap during your business hours.
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.