Professional REST API Development DevelopersREST API Development
We build production-ready REST APIs for your product. Ship in 8-12 weeks with a fixed price and full ownership.
IRPR builds professional REST APIs for products that handle real traffic. We use Node.js, Python FastAPI, Go, PostgreSQL, Redis, and deploy on AWS ECS or Kubernetes with CloudFront CDN. Every API follows OpenAPI 3.0 spec and includes automated load testing.
Your REST API ships in 8-12 weeks with a fixed price between $80K and $250K. We handle compliance: HIPAA for healthcare, PCI-DSS for payments, SOC 2 for SaaS. Our team of senior engineers has shipped 200+ APIs across 50 countries.
Who hires us: a CTO at a Series A SaaS startup needing a scalable API for 10K users; a VP Engineering at a mid-market firm integrating with Salesforce; a Product Manager launching a mobile app backend; a Technical Founder building an MVP to raise seed funding.
Types of software we ship.
SaaS Product REST API Development
Build the core API for your SaaS platform — user management, subscription billing, data sync. We use Stripe, Auth0, and PostgreSQL.
REST API Integration Services
Connect your product to third-party APIs like Shopify, HubSpot, or Twilio. We build reliable sync adapters with retry logic and webhooks.
REST API for Mobile Apps
Backend APIs for iOS and Android apps — push notifications, real-time chat, image uploads. We use Firebase Cloud Messaging and AWS S3.
REST API Microservices Development
Decompose monoliths into small, independent REST APIs. Each service has its own database and CI/CD pipeline. We use Docker and Kubernetes.
REST API for Ecommerce Platforms
APIs for product catalogs, shopping carts, payment gateways (Stripe, PayPal), and order fulfillment. PCI-DSS compliant by default.
REST API for Financial Services
Build secure APIs for payments, lending, and banking integrations. We implement encryption, audit logs, and PCI-DSS Level 1 compliance.
REST API for Healthcare Systems
HIPAA-compliant APIs for EHR, patient portals, and telemedicine. We use FHIR standards and BAA agreements with AWS.
REST API for IoT Devices
Backend APIs that ingest sensor data, manage device state, and trigger alerts. We use MQTT brokers and TimescaleDB for time-series data.
We build for every business type.
SaaS companies
Ecommerce businesses
Healthcare organizations
Fintech firms
Enterprise systems
Why you need professional REST API development developers
A well-architected REST API is the backbone of any modern product.
Many teams rush their API design and end up with tight coupling, slow endpoints, and security holes. IRPR designs your API with versioning, rate limiting, and pagination from day one. We use OpenAPI 3.0 to generate server and client code automatically, reducing bugs by 40%.
We also implement proper authentication with OAuth2 and JWT, plus API keys for machine-to-machine access. Every endpoint has automated tests that run on every commit. Our APIs handle 10K requests per second on standard AWS EC2 instances.
The difference between generic developers and professional REST API developers
Not all developers build APIs that scale and stay secure.
Generic freelance developers often skip API documentation, error handling, and monitoring. They build one-off endpoints that break under load and require months of refactoring. IRPR treats your API as a product, following the same rigor we use for 200+ projects.
We deliver a complete API platform: developer portal with interactive docs, CI/CD pipeline that deploys to staging and production, and Datadog monitoring with alerts. Your team gets a production-ready API that can serve 100K users from day one.
- No API design review
- No automated tests
- One endpoint at a time
- No versioning strategy
- No rate limiting
- No monitoring or alerts
- OpenAPI spec before coding
- Integration and unit tests on every endpoint
- Full CRUD with pagination and filtering
- API versioning (v1, v2) with deprecation policies
- Rate limiting per API key and user
- Datadog dashboards with 99.9% uptime alerts
Our process for building your professional REST API
We follow a four-phase process to deliver your API on time and on budget.
Every project starts with a 1-week Roadmap phase where we define the API contract, data model, and authentication strategy. You get a fixed quote and timeline before any code is written. This eliminates surprises.
During build, we work in 2-week sprints with demo sessions every Friday. You see progress on a staging environment and can adjust priorities. The final Release includes deployment to your AWS account and a 30-day warranty.
What ships with your REST API project
You get more than just endpoints – a complete API platform.
When you hire IRPR for professional REST API development, you receive everything needed to maintain and scale your API for years. No hidden dependencies or proprietary locks.
- Source code in your AWS account or GitHub repo
- CI/CD pipeline with GitHub Actions
- OpenAPI 3.0 documentation hosted on Swagger UI
- Postman collection for testing
- Dockerized local development environment
- Sentry error tracking and alerts
- Datadog or CloudWatch monitoring dashboard
- Rate limiting and authentication (OAuth2 + API keys)
- Load test report from k6
- 30-day post-release warranty
What we ship in this practice.
Backend API for a SaaS analytics platform
IRPR built a REST API for a B2B analytics startup that ingests 5 million events per day. We used FastAPI, PostgreSQL TimescaleDB, and Redis caching. The API reduced query latency by 60% and the client raised a Series A within 6 months.
REST API for a mobile social app
We created a RESTful backend for a social networking mobile app. Tech stack: Node.js, MongoDB, Firebase Cloud Messaging, and AWS S3 for media. The API supports 50K concurrent users and push notifications deliver in under 200ms.
Payment integration API for an ecommerce marketplace
IRPR developed a PCI-DSS compliant REST API connecting the marketplace to Stripe and PayPal. It handles split payments between 100+ sellers. The client saw a 30% reduction in payment failures and went live in 10 weeks.
HIPAA-compliant API for a telemedicine platform
We built a REST API for a telemedicine startup that connects patients with doctors. Used Python FastAPI, FHIR standards, and AWS HIPAA-eligible services. The API handles 10K video consultations per month and passed a security audit in week 8.
REST API for a loan origination fintech
IRPR developed a set of REST APIs for a lending platform. Stack: Java Spring Boot, PostgreSQL, Redis, and Okta for identity. The APIs automate underwriting decisions in under 2 seconds and reduced manual processing by 80%.
Integration API for a logistics dispatch system
We built REST APIs that connect a trucking company's dispatch system with external tracking APIs (FedEx, UPS). Used Go, AWS Lambda, and DynamoDB. The integration cut manual data entry by 12 hours per week and improved tracking accuracy to 99%.
Why teams hire us.
Fixed price, not hourly
Every REST API project gets a fixed quote after a 1-week Roadmap phase. No hourly billing means you know the exact cost before we write a single line of code. We have delivered 200+ projects on budget.
Senior engineers only
Our team averages 10 years of experience and includes AWS Solutions Architects and Kubernetes Certified Administrators. No junior developers touch your code.
OpenAPI-first design
We write the API contract as an OpenAPI 3.0 spec before backend code. This ensures all endpoints, request/response models, and authentication are agreed upon early. It reduces rework by 40%.
Full IP ownership
You own the source code, documentation, and deployment infrastructure from day one. We transfer everything to your AWS or GitHub account at the end of the project.
Compliance built in
We build HIPAA, PCI-DSS, and SOC 2 compliant APIs by default. Our engineers configure encryption at rest and in transit, audit logs, and access controls. No bolt-on security.
12-week delivery guarantee
85% of our APIs ship within 12 weeks. We maintain this pace by using proven architectures, reusable components, and automated testing. If we miss the deadline, you pay nothing for the overrun.
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.