Integration Developer (SC Cleared)

System Integration Developer | SSIS | APIs | C#/.NET | SC Cleared We are looking for an experienced System Integration Developer / Engineer to join a client project requiring strong, recent hands-on experience…

Pay rate £500 – £800/day
Contract type Contract
Posted 8 October 2026

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About this contract

System Integration Developer | SSIS | APIs | C#/.NET | SC Cleared

We are looking for an experienced System Integration Developer / Engineer to join a client project requiring strong, recent hands-on experience delivering system integrations using SSIS and APIs.

The successful candidate will have a proven background in system integration projects, with their recent experience clearly demonstrating practical use of SQL Server Integration Services (SSIS) and API integrations, alongside exposure to C# and/or .NET technologies.

Key Responsibilities

Design, develop and deliver system integration solutions
Build and maintain integrations using SSIS (SQL Server Integration Services)
Develop and support API-based integrations, including REST/API services
Work across multiple applications and systems to ensure reliable data and service integration
Troubleshoot integration issues and support testing and deployment activities
Work with technical and business stakeholders throughout the integration lifecycle

Essential Experience

Strong recent hands-on SSIS experience
Strong recent API integration experience
Proven experience delivering system integration projects
Experience working with C# and/or .NET technologies
Ability to demonstrate the above experience within recent roles/projects
Active or lapsed SC Clearance is essential

Desirable Experience

RESTful APIs / Web APIs
SOAP / Web Services
Microsoft SQL Server
Integration testing and troubleshooting
Experience working within secure or government environments

Clearance

Candidates must hold active or previously held/lapsed SC Clearance to be considered.

Interested?

If you have recent hands-on experience with SSIS, API integrations and C#/.NET and hold active or lapsed SC Clearance, please apply with your latest CV detailing your recent system integration project experience.

GCS is acting as an Employment Business in relation to this vacancy

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