Java Developer (with Kotlin) x 2Location: London (1-2 days per week onsite in Crawley)6-Month Fixed-Term ContractSalary: £70,000 - £85,000We are seeking two Java Developers with Kotlin experience to join our team on a 6-month fixed-term contract. This is an opportunity to contribute to a modern, evolving codebase within a collaborative engineering environment.The role is London-based with hybrid working, requiring onsite attendance 1-2 days per week.We are open to candidates from mid-level to senior level who are confident working in production environments and contributing to high-quality software delivery.Key ResponsibilitiesDevelop, enhance, and maintain backend services using Java and KotlinContribute to system design and technical decision-makingWrite clean, maintainable, and well-tested codeParticipate in code reviews and promote engineering best practicesCollaborate with cross-functional teams including product, QA, and DevOpsSupport continuous improvement of development processesTechnical RequirementsStrong commercial experience with JavaPractical experience using Kotlin in production environmentsGood understanding of object-oriented design principlesExperience building RESTful APIs and backend servicesFamiliarity with modern development practices (e.g. CI/CD, automated testing, Git)Experience working within Agile environmentsDesirable SkillsExperience with Spring / Spring BootExposure to cloud platforms (AWS, Azure, or GCP)Containerisation experience (Docker, Kuberne