API Integration Services

Seamless System Integration for International Business

At GIQS, we specialise in building robust API connections that enable your business systems to communicate efficiently. Whether you need to integrate with third-party platforms, connect internal tools, or build an entirely new API from the ground up — our senior developers deliver solutions that are reliable, well-documented, and built to scale.

With years of experience in the Scandinavian market, we understand the technical and regulatory landscape of Nordic business. From insurance platforms to payment providers, we have the domain knowledge to integrate with the systems that matter most to your operations.

What We Deliver

Third-Party Integrations

Connect your systems with external platforms — SAP, CRM tools, payment gateways, insurance software, and more. We handle authentication, data mapping, and error handling.

Custom API Development

We design and build REST APIs from scratch — clean endpoints, proper versioning, authentication, and thorough documentation so other teams can integrate with your services easily.

Legacy System Integration

Bridging old and new — we connect legacy SOAP-based or proprietary systems with modern platforms, ensuring data flows smoothly without disrupting existing operations.

Why Choose GIQS for API Integration

Scandinavian Market Expertise

We understand Nordic platforms, regulations, and business processes. Our team has integrated with NIS, Scandinavian payment systems, and regional compliance tools.

Senior Developers Only

No juniors learning on your project. Our team consists of experienced .NET/C# developers and architects who deliver production-ready code from day one.

Comprehensive Documentation

Every integration comes with full technical documentation — endpoint specs, authentication flows, data schemas, and usage examples your team can rely on.

Agile & Transparent

We work in Scrum sprints with regular demos and clear communication. You always know what's being built, what's done, and what's next.

Proven Technology Stack

.NET/C#, Azure, REST API, MSSQL, Oracle — we use battle-tested enterprise technologies that scale with your business needs.

Ongoing Support

We don't just deliver and disappear. Our team provides maintenance, monitoring, and support packages to keep your integrations running smoothly.

Frequently Asked Questions

What types of API integrations does GIQS handle?

We handle REST API integrations, SOAP-based legacy systems, third-party platform connectors (SAP, payment gateways, CRM systems), and custom API development from scratch. Our team has extensive experience with both modern microservice architectures and integrating with older enterprise systems.

Can you integrate with Nordic and Scandinavian platforms?

Yes. We have years of hands-on experience integrating with Nordic-specific platforms, including Nordic Insurance Software (NIS), Scandinavian payment providers, and regional compliance systems. Our team understands the regulatory and technical requirements specific to the Swedish, Norwegian, Danish, and Finnish markets.

How long does a typical API integration project take?

A straightforward single-system integration typically takes 2-4 weeks. More complex projects involving multiple endpoints, data transformation, and extensive testing can take 1-3 months. We provide a detailed timeline estimate after an initial technical assessment of your requirements.

Do you provide API documentation and ongoing support?

Absolutely. Every API we build or integrate comes with comprehensive technical documentation, including endpoint specifications, authentication guides, and usage examples. We also offer ongoing maintenance and support packages to ensure your integrations remain stable and up to date.