Job Description:

Senior Integration Software Engineer – Contract

Location: Leeds / Wakefield – hybrid, with at least 1 day per week onsite and occasional regional travel
Rate: £395 per day – Inside IR35
Contract: 1 September 2026 to 16 November 2026
Hours: Full-time

We are looking for a Senior Integration Software Engineer to support a large-scale integration programme, designing and delivering secure, reliable integrations across complex enterprise systems.

The Role You will work within a multidisciplinary delivery team alongside Architects, Business Analysts, Delivery Managers and technical stakeholders. Responsibilities will include:

• Developing secure APIs, integration services and reusable integration components
• Building interfaces using FHIR, HL7 v2.x and RESTful APIs
• Integrating with complex enterprise platforms, including EPR and PAS systems
• Supporting integration testing, deployment, go-live and early-life support
• Troubleshooting integration issues across multiple systems
• Developing automated unit, integration and API tests
• Working within Agile delivery and CI/CD environments
• Producing technical, API and interface documentation
• Supporting code reviews and maintaining high software engineering standards

Essential Experience

• Strong enterprise software engineering and systems integration background
• Commercial experience with FHIR
• Commercial experience with HL7 v2.x
• Strong RESTful API and web services development experience
• Experience integrating multiple complex systems
• Cloud-based application development
• Git, CI/CD pipelines and automated testing
• Secure software development practices
• Agile and DevOps delivery experience
• Strong technical troubleshooting skills

Experience with integration engines, middleware and event-driven architecture would also be beneficial.

Candidates must be comfortable attending the Leeds/Wakefield location at least once per week, with some additional regional travel for technical workshops, testing and implementation activities.