Senior API Integration Development VendorIntegration Vendor
We build custom API integrations that connect your systems in 12 weeks. Fixed pricing, senior engineers, full code ownership.
IRPR builds custom API integrations for companies that need reliable, secure connections between their platforms and third-party systems. We use REST, GraphQL, SOAP, Webhooks, and middleware tools like Mulesoft and Apigee to handle any integration scenario.
Each project ships with a fixed price determined in the Roadmap phase (week 2). Timelines range from 8 to 12 weeks for an MVP, with budgets from $80K to $250K. All integrations comply with SOC 2, HIPAA, PCI-DSS, and other industry standards.
We work with CTOs of SaaS companies needing to connect to Salesforce or HubSpot, healthcare IT directors integrating EHRs like Epic and Cerner, fintech compliance officers building payment gateway connections, and logistics managers syncing ERP data with shipping APIs.
Types of software we ship.
Custom API Integration Platform
A centralized hub to manage all your third-party API connections. Includes authentication, rate limiting, and logging via Kong Gateway.
Third-Party API Connector
Pre-built connectors for popular services like Salesforce, HubSpot, and Stripe. Each connector handles OAuth, webhooks, and error retry logic.
Enterprise Service Bus (ESB) Implementation
Message routing and transformation between legacy and modern systems using Mulesoft Anypoint Platform or Apache Camel.
API Gateway Development
A single entry point for all your microservices with authentication, throttling, and analytics using AWS API Gateway or Kong.
Webhook Management System
Reliable delivery of events to external services with retries, logging, and dashboard monitoring using Svix or custom Node.js.
Data Synchronization Service
Bidirectional sync between databases and APIs (e.g., MySQL to Salesforce) using Apache Kafka or Debezium for CDC.
API Monitoring and Analytics Dashboard
Real-time visibility into API usage, latency, and error rates with Datadog or Grafana dashboards and alerts.
API Documentation Portal
Interactive docs for developers using Swagger/OpenAPI, with try-it-out endpoints and versioning via Stoplight.
We build for every business type.
Healthcare
Fintech
Ecommerce
SaaS
Logistics
Why Choose a Senior API Integration Development Vendor
IRPR delivers production-ready integrations that are secure, scalable, and documented.
Every integration we build goes through a strict discovery phase where we map data flows, define error handling, and agree on SLAs. We then build and test against real endpoints before deployment.
Our team has shipped over 200 integrations across healthcare, fintech, ecommerce, and logistics. We follow compliance frameworks like HIPAA and PCI-DSS from day one, not as an afterthought.
The Difference Between a Generic Dev Shop and IRPR
Most agencies treat API integration as a side project. We treat it as our core competency.
Generic dev shops often assign junior developers who learn APIs on the job. They lack compliance experience and rarely deliver on time.
IRPR assigns senior engineers who have built integrations for healthcare, fintech, and logistics. We give you a fixed price and a clear timeline in the second week.
- No fixed pricing - hourly billing only
- Junior developers with no API specialization
- No compliance knowledge (HIPAA, PCI, SOC 2)
- No dedicated project manager
- Code ownership often unclear or shared
- No monitoring or alerting built in
- Fixed price from Roadmap phase (week 2)
- Senior engineers with 10+ years experience
- HIPAA, PCI-DSS, SOC 2 compliance built in
- Dedicated project manager with weekly updates
- Full code ownership - source code in your repo
- Sentry error tracking and Datadog monitoring included
Our API Integration Development Process
We use a four-phase process to deliver integrations on time and on budget.
Every project starts with a discovery call to understand your systems, endpoints, and compliance needs. We then create a detailed Roadmap with exact scope and fixed price.
After you approve the Roadmap, we build the integration in iterative sprints. You see working code every two weeks. We deploy to production only after passing all tests.
What Ships with Every API Integration Project
You get more than just working code. Every deliverable is designed for long-term maintainability.
We believe in full ownership and transparency. That means you get everything you need to run the integration independently.
All deliverables are documented and tested. We include monitoring and alerting so you know when something breaks.
- Source code in your private GitHub/GitLab repo
- CI/CD pipeline with GitHub Actions or GitLab CI
- Sentry error tracking and Datadog dashboards
- Postman collection or OpenAPI spec for all endpoints
- Unit and integration tests with 90%+ coverage
- Deployment runbook with rollback instructions
- 30 days of post-launch support and bug fixes
- Architecture diagram and data flow documentation
- Rate limiting and retry logic for third-party APIs
- Compliance checklist for HIPAA, PCI, or SOC 2
What we ship in this practice.
EHR Integration for Telehealth Platform
Built a custom FHIR API layer connecting a telehealth app to Epic and Cerner. Reduced patient data sync time from 4 hours to 2 minutes. Tech stack: Node.js, Mirth Connect, HL7 v2.
Payment Gateway Aggregator for Fintech Startup
Developed a unified API that routes transactions to Stripe, Braintree, and Adyen based on currency and region. Increased approval rates by 12%. Tech stack: Go, PostgreSQL, Redis.
Shopify-to-ERP Sync for Ecommerce Brand
Built a bidirectional sync between Shopify and NetSuite for orders, inventory, and customers. Eliminated manual data entry saving 20 hours per week. Tech stack: Python, Celery, Shopify REST API.
Salesforce and HubSpot Connector for B2B SaaS
Created a real-time sync of leads, contacts, and deals between Salesforce and HubSpot. Reduced duplicate data by 95%. Tech stack: Node.js, Apollo GraphQL, Pub/Sub.
Shipping Carrier API Integration for Logistics Firm
Integrated FedEx, UPS, and DHL APIs into a single rate-shopping and label-printing service. Cut shipping costs by 8% through carrier comparison. Tech stack: .NET Core, Azure Functions, REST.
Ad Server API Integration for Media Company
Built a custom connector between Google Ad Manager and a proprietary CMS for automated ad insertion. Reduced manual ad placement from 3 hours to 15 minutes daily. Tech stack: Java, Spring Boot, Google Ad Manager API.
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 exact cost before we build anything.
Senior engineers only
All engineers have 10+ years of experience and have shipped at least 20 production integrations. No junior developers assigned to your project.
Compliance built in
We have built integrations for HIPAA, PCI-DSS, and SOC 2 environments. Our code includes audit logging, encryption at rest and in transit, and access controls by default.
Full code ownership
You own all source code, documentation, and configuration files from day one. We push code to your repository, not ours.
8-12 week MVPs
Most integrations ship within 8 to 12 weeks. We break large projects into phases so you can start seeing value quickly.
Dedicated project manager
Every project includes a PM who provides weekly status reports, manages timelines, and escalates issues. You never have to guess what's happening.
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.
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