Job Description What will you be doing? Are you a seasoned Senior HCI Developer with a passion for cutting-edge technology in the defence and aerospace sector ? At ALTEN UK, we're offering a unique opportunity to work on groundbreaking projects that enhance national security. Collaborate with industry leaders, utilizing your expertise in JavaFX/Swing and Linux-based development to create robust Human-Computer Interfaces for advanced underwater systems. Your contributions will directly impact the success of critical missions. Location: Manchester. Hybrid working model (2/3 days on-site per week). Key Responsibilities: Develop and enhance HCI and UI solutions for sophisticated underwater systems using JavaFX or Swing on a Linux platform. Write new scripts from scratch and handle pull requests to modify and improve existing code. Collaborate closely with cross-functional teams, including product owners and software architects, to refine and deliver cutting-edge software solutions. Ensure code quality through unit testing, static analysis ( Klocwork ), and refactoring when required. Create and maintain comprehensive documentation to support robust development processes and deliverables. Understand and work with complex interfaces, ensuring optimal usability and performance.