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
