Senior API Integration Development ConsultantsAPI Integration
We build custom API integrations that connect your tools and data. Fixed price, 8-12 week delivery, senior engineers only.
IRPR builds custom API integrations that connect your existing tools, databases, and third-party services. We use REST, GraphQL, WebSockets, and message queues like RabbitMQ and Kafka to move data reliably between systems.
Every integration ships with a fixed price and a 8-12 week timeline. Costs range from $80K to $250K depending on complexity and compliance requirements. We build for HIPAA, PCI-DSS, SOC 2, and FERPA environments.
CTOs hire us when their in-house team lacks API integration expertise. Product owners hire us to connect a new SaaS tool to their stack. Compliance officers hire us to ensure data flows meet regulatory standards. Startup founders hire us to build the data infrastructure their MVP needs.
Types of software we ship.
CRM Integration
Connect Salesforce, HubSpot, or Zoho to your ERP, marketing tools, or custom apps. Sync contacts, deals, and activities in real time.
Payment Gateway Integration
Integrate Stripe, Braintree, or Adyen into your checkout flow. Handle subscriptions, refunds, and PCI-DSS compliance.
Ecommerce Platform Integration
Connect Shopify, Magento, or WooCommerce to your inventory, accounting, and shipping systems. Automate order fulfillment.
Healthcare Data Integration
Build HIPAA-compliant integrations with EHRs like Epic, Cerner, or Athenahealth. Exchange FHIR, HL7 v2, and CCDA data.
ERP Integration
Connect NetSuite, SAP, or Microsoft Dynamics to your CRM, HR, and supply chain tools. Sync orders, invoices, and inventory.
Marketing Automation Integration
Integrate Marketo, Pardot, or Mailchimp with your CRM and analytics. Automate lead scoring, email campaigns, and attribution.
Legacy System Integration
Wrap old mainframes, COBOL systems, or on-prem databases with modern REST APIs. Move data to the cloud without rewriting everything.
Real-Time Data Pipeline
Build event-driven pipelines using Kafka, Kinesis, or Pub/Sub. Stream data between microservices, analytics, and storage.
We build for every business type.
Healthcare
Fintech
Ecommerce & Retail
SaaS & Technology
Enterprise & Manufacturing
Why Hire Senior API Integration Development Consultants
Building a single API integration sounds simple. Connecting 10 systems with error handling, retries, and compliance is a different problem.
Most development shops treat API integration as a weekend task. They copy a few endpoints from the docs, write a basic HTTP client, and call it done. Then the production data starts flowing and everything breaks: rate limits are hit, webhooks fail silently, authentication tokens expire, and the data format changes without notice. Your users see stale data or duplicate records. Your support team gets flooded with tickets.
IRPR treats API integration as a first-class engineering discipline. We build idempotent endpoints, implement circuit breakers, set up dead-letter queues, and write integration tests that run every 15 minutes. We document every data mapping, every error code, and every retry policy. When the upstream API changes, your integration keeps working. We have shipped 200+ products across 50+ countries, and every one of them talks to at least 2 external systems.
Generic Dev Shop vs Senior API Integration Consultants
Not every developer can build production-ready API integrations. Here is what the difference looks like.
Generic dev shops focus on the happy path. They wire up a couple of endpoints, test with sample data, and move on. When your integration fails at 3 AM because a downstream service returned a 503, there is no retry logic, no alert, and no fallback. Your data pipeline breaks and you do not know until a customer complains.
IRPR builds integrations that survive real-world conditions. We design for failure from day one. Every integration includes automated retries with exponential backoff, dead-letter queues for failed messages, health check endpoints, and monitoring dashboards in Datadog or New Relic. We test against sandbox and production environments before go-live. Your data flows keep flowing.
- Writes basic HTTP calls with no error handling
- Ignores rate limits and pagination
- No monitoring or alerting on integrations
- No documentation of data mappings
- No retry logic for transient failures
- No compliance review (HIPAA, PCI, SOC 2)
- Builds idempotent endpoints with circuit breakers
- Handles rate limits, pagination, and backpressure
- Ships with Datadog dashboards and PagerDuty alerts
- Documents every field mapping and error code
- Implements retry with exponential backoff and DLQs
- Validates compliance for HIPAA, PCI, SOC 2
Our API Integration Development Process
We follow a structured 4-phase process that turns your integration needs into a working, monitored system.
Every project starts with a discovery call where we map your existing systems, data flows, and compliance requirements. We identify every upstream and downstream API, every data format, and every failure scenario. This phase takes 1 week and produces a detailed integration architecture document.
The build phase uses your real sandbox environments. We write integration tests before we write production code. Each integration gets its own CI/CD pipeline, staging environment, and deployment runbook. The testing phase runs for 2 weeks with synthetic data and production traffic replay. Only then do we flip the switch to production.
What Ships with Every Integration Project
Every integration project from IRPR includes these deliverables. No hidden fees, no missing pieces.
We believe in shipping complete, production-ready integrations. You get everything you need to operate and maintain the system yourself or with your team. Every piece of code, every config file, every document is yours to keep.
- Source code in your private GitHub repository
- CI/CD pipeline with GitHub Actions or GitLab CI
- Integration tests for every endpoint and error path
- Monitoring dashboards in Datadog or Grafana
- Alerting rules for failures, latency, and data drift
- API documentation with Swagger or Postman collections
- Runbook for common failure scenarios and recovery steps
- Data mapping document with field-level transformations
- Deployment runbook for staging and production
- 30-day warranty with on-call support
What we ship in this practice.
CRM-to-ERP Sync for a Manufacturing Firm
We built a real-time sync between Salesforce and NetSuite. Orders created in Salesforce automatically appear in NetSuite with inventory checks. Reduced manual data entry by 12 hours per week. Tech stack: Node.js, Salesforce REST API, NetSuite SuiteTalk, RabbitMQ, PostgreSQL.
Payment Gateway Integration for a Fintech Startup
We integrated Stripe Connect into a marketplace platform handling 10,000 transactions per day. Built custom webhook handlers for chargebacks, refunds, and payout failures. Achieved PCI-DSS Level 1 compliance. Tech stack: Python, Django, Stripe API, Celery, Redis, AWS.
EHR Integration for a Telehealth Platform
We connected a telehealth app to Epic and Athenahealth using FHIR R4. Patient demographics, appointment data, and clinical notes sync in real time. Met HIPAA compliance requirements. Reduced manual charting by 8 hours per week per provider. Tech stack: Java, Spring Boot, FHIR, HL7 v2, Kafka, Docker.
Ecommerce Integration for a Multi-Channel Retailer
We built a central integration hub connecting Shopify, Amazon, and their warehouse WMS. Orders, inventory, and shipping status sync across all channels in under 30 seconds. Cut order processing time from 45 minutes to 5 minutes per day. Tech stack: Ruby on Rails, Shopify API, Amazon MWS, RabbitMQ, PostgreSQL.
Marketing Automation Integration for a B2B SaaS Company
We integrated Marketo with Salesforce and their custom product analytics. Lead scoring, email campaigns, and attribution data flow in real time. Increased lead-to-opportunity conversion rate by 22%. Tech stack: Node.js, Marketo REST API, Salesforce Bulk API, AWS Lambda, DynamoDB.
Real-Time Data Pipeline for a Logistics Company
We built an event-driven pipeline connecting GPS trackers, warehouse scanners, and their customer portal. Shipment status updates are processed in under 5 seconds. Cut delivery exception handling from 4 hours to 30 minutes. Tech stack: Go, Kafka, MongoDB, GraphQL, Docker, Kubernetes.
Why teams hire us.
Fixed price, not hourly
Every integration 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 write a single line of code.
Senior engineers only, no juniors
IRPR does not staff juniors. Every engineer on your project has 8+ years of experience building production API integrations. Our team has shipped 200+ products across 50+ countries.
Built for compliance from day one
We design integrations to meet HIPAA, PCI-DSS, SOC 2, and FERPA requirements from the start. No retrofitting compliance after the fact. Every data field is mapped to its compliance classification.
Full ownership of code and data
You own every line of code, every config file, and every document. No licensing fees, no vendor lock-in, no black boxes. Your integration runs in your cloud account on your infrastructure.
8-12 week delivery, not 6 months
Most integration projects take 4-6 months at other agencies. IRPR delivers in 8-12 weeks because we use pre-built connectors, integration templates, and automated testing. We focus on what matters.
Post-launch monitoring and support
Every integration ships with Datadog dashboards, PagerDuty alerts, and a 30-day warranty with on-call support. We do not disappear after launch. Your integration stays healthy.
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.