Integration Developer

Join Karbon Homes as an Integration Developer and help shape the future of integration services across our organisation. You'll design, develop, support, and enhance integrations between internal and external systems, helping to ensure our technology ecosystem is secure, resilient, and efficient. Working with technologies including REST APIs, Java, Spring Boot, TypeScript, Azure, SQL, and integration platforms such as MuleSoft, you'll develop innovative solutions that enable seamless data exchange and business process automation. This is an exciting opportunity to work closely with architects, business analysts, operational teams, third party suppliers, and fellow developers to deliver modern API led and cloud-based integration services that directly support customer services, housing operations, and tenancy management. You'll play an important role in driving continuous improvement, automation, DevOps practices, and integration governance whilst helping Karbon Homes deliver an outstanding service to customers.

We recognise the contribution people with criminal records can make as colleagues and we welcome all applications. A criminal record will not exclude a candidate from being appointed because of offences that are irrelevant to, and do not place them at, or make them a risk in the role they're applying for. The role you're applying for is covered by the Rehabilitation of Offenders Act 1974 (ROA). The successful candidate(s) will be asked to submit a basic disclosure and barring check application during pre-employment checks.

Why Join Us?

• 26 days annual leave (rising to 31 after 3 years)
• Birthday leave
• Occupational pension
• Health cash plan
• Flexible benefits pot
• Access to funding for qualifications, conferences, and learning events

You'll be:

• Experienced in designing, developing, and supporting integrations between business systems.
• Skilled in Java, Spring Boot, TypeScript, relational databases, and API development.
• Knowledgeable in REST APIs, OpenAPI/Swagger specifications, API security, OAuth2, JWT, XML, JSON, and CSV data formats.
• Comfortable working with cloud technologies, particularly Microsoft Azure.
• Experienced in data mapping, transformation, integration testing, and troubleshooting complex technical issues.
• Familiar with DevOps practices, CI/CD pipelines, Git version control, and automation.
• Able to translate business requirements into practical technical solutions.
• An effective communicator who can build strong relationships with colleagues, stakeholders, and suppliers.
• Passionate about continuous improvement, innovation, and learning new technologies.
• Committed to delivering excellent customer outcomes and living Karbon's values.
• Experience of MuleSoft, DataWeave, event-driven architectures, message queuing technologies, and housing management systems would be advantageous.

At Karbon Homes, our technology teams play a vital role in delivering services that improve the lives of our customers. We're investing in modern, secure, and scalable integration solutions that connect people, systems, data, and services across our organisation and partner network.

Key Dates

Closing date for applications Thursday 29 October 2026

Interview date w/c 9 th November 2026

We're Inclusive

We're proud to be an inclusive employer. We welcome applications from people of all backgrounds, identities, and experiences. If you have a disability and meet the essential criteria, you'll be guaranteed an interview. Need a reasonable adjustment to apply? Contact us at

We may close the advert early if we receive a high volume of strong applications-so don't wait too long to apply!