Experienced Backend API Development ServicesAPI Development
We build REST, GraphQL, and microservice APIs that ship in 8-12 weeks. Fixed pricing starts at $80,000.
IRPR builds backend APIs for web and mobile applications. We use Node.js, Python, Go, PostgreSQL, Redis, and cloud services on AWS and GCP.
A typical API project ships in 8-12 weeks with a fixed price range of $80,000-$250,000. Every API meets compliance standards like HIPAA, SOC 2, or PCI-DSS.
We work with CTOs scaling a SaaS product, fintech founders needing PCI-compliant APIs, healthcare CIOs building HIPAA-safe backends, and ecommerce directors integrating third-party services.
Types of software we ship.
RESTful API Development
Build stateless APIs following REST constraints with tools like Express.js, Django REST Framework, or FastAPI.
GraphQL API Development
Create flexible query APIs using Apollo Server, Hasura, or GraphQL Yoga with real-time subscriptions.
Microservices API Gateway
Deploy a central gateway using Kong or API Gateway to route, authenticate, and rate-limit internal services.
Webhook Server Development
Build reliable webhook endpoints to receive and dispatch real-time events from Stripe, GitHub, or custom systems.
Real-Time API (WebSocket)
Implement WebSocket or SSE APIs for live data feeds using Socket.io, Redis Pub/Sub, or AWS API Gateway WebSockets.
B2B API Integration
Connect your platform to partners' APIs with OAuth 2.0, data sync, and error handling using Celery or Sidekiq.
Third-Party API Wrapper
Abstract complex external APIs (Salesforce, Twilio, Stripe) into a clean, documented internal SDK with retry logic.
Internal API & Backend Service
Design private APIs for internal microservices using gRPC, RabbitMQ, and message queues for high throughput.
We build for every business type.
SaaS Platforms
Fintech
Healthcare
Ecommerce
Logistics
What Experienced Backend API Development Delivers
Every API we build includes measurable performance, security, and compliance outcomes.
IRPR has shipped over 200 backend APIs across 50 countries. Our APIs handle millions of requests per day with 99.9% uptime. We enforce consistent code standards and automated testing from day one.
Each project includes load testing with k6, unit tests above 80%, and a full CI/CD pipeline. You get a Postman collection, OpenAPI docs, and a monitoring dashboard on Grafana.
How IRPR Compares to Generic Development Shops
Most agencies bill hourly and hand you incomplete code. IRPR works differently.
Generic dev shops often start coding without a fixed scope. You get weekly invoices that grow as requirements change. Code is delivered without tests, without docs, and without a clear ownership transfer.
IRPR locks the scope in a 2-week Roadmap phase. You get a fixed price, full code ownership, and built-in compliance from day one. Our senior engineers average 10+ years of experience and stay throughout the project.
- Hourly billing with unpredictable total cost
- Scope changes billed as change orders
- Code ownership often unclear or shared
- No built-in compliance (HIPAA, PCI, SOC 2)
- Team changes mid-project due to resource shuffling
- Delivery delayed by poor project management
- Fixed price from $80,000 after 2-week Roadmap
- Scope locked in Roadmap, no surprise charges
- Full code ownership in your private repo
- Compliance architected from day one
- Same senior team from kickoff to launch
- 8-12 week delivery with 98% on-time rate
Our Process for Backend API Development
We follow a 4-phase process that de-risks your project and guarantees predictable delivery.
The Discovery phase maps your requirements and existing infrastructure. We identify integration points, data flows, and compliance needs. You get a clear technical foundation before any code is written.
During the Roadmap phase we produce a fixed-scope specification with milestones, API endpoints, and a delivery timeline. The Build phase executes in 2-week sprints with continuous demos. Release includes documentation, testing, and 30-day support.
Everything You Get with Every Backend API Project
We deliver a complete package, not just code. You get everything needed to run and maintain your API.
Each project includes source code, infrastructure-as-code, automated tests, documentation, and monitoring. No hidden extras, no missing pieces.
- Source code in your private GitHub repo with full ownership
- CI/CD pipeline using GitHub Actions or GitLab CI
- Postman collection with request examples
- API documentation generated from OpenAPI / Swagger
- Load test results and k6 scripts
- Sentry error tracking with alert rules
- Terraform or CloudFormation scripts for AWS/GCP
- Security audit report (OWASP top 10 check)
- Unit test coverage report (80%+ threshold)
- Grafana monitoring dashboard with key metrics
What we ship in this practice.
Payment Processing API for Fintech Startup
Built a PCI-DSS compliant payment API using Node.js and Stripe Connect. Reduced failed transactions by 30% and enabled multi-currency support. Stack: Node.js, PostgreSQL, Stripe, AWS ECS.
Patient Data API for Healthcare Platform
Developed a FHIR-compliant API for patient record exchange. Cut integration time for new EHR partners from 8 weeks to 4 weeks. Stack: Python, FHIR, AWS HealthLake, Docker.
Real-Time Inventory API for Ecommerce Brand
Created a WebSocket-based inventory sync API connecting 3 warehouses. Reduced oversold items by 90% and improved checkout success rate. Stack: Go, Redis, WebSocket, PostgreSQL.
SaaS Admin API for B2B Platform
Built a GraphQL admin API serving 200+ partner integrations. Automated user provisioning cut support tickets by 40%. Stack: Node.js, GraphQL, Apollo, JWT, Docker.
Shipment Tracking API for Logistics Firm
Integrated 5 carrier APIs into a unified tracking endpoint. Automated status updates saving 12 hours of manual tracking per week. Stack: Python, Django, Celery, PostgreSQL, Redis.
Content Delivery API for Media Company
Designed a serverless API using AWS Lambda and API Gateway. Handles 10 million requests daily with sub-50ms average latency. Stack: Go, AWS Lambda, DynamoDB, CloudFront.
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.
Senior engineers only
Our team averages 10+ years of experience. No junior developers, no offshore turnover. The same engineers stay from kickoff to launch.
Compliance built in, not bolted on
HIPAA, SOC 2, and PCI-DSS are architected from day one. We include audit logs, encryption, and access controls without retrofitting.
Ship in 8-12 weeks
Our 2-week Roadmap locks scope and schedule. Build phase runs 6-10 weeks. 98% of projects deliver on time.
Full code ownership
Source code, test files, infrastructure scripts — all in your private repository. You own everything with no licensing restrictions.
Post-launch support included
Every project includes 30 days of post-launch support. SLA guarantees a 4-hour response time for production incidents.
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.