Company Description Are you passionate about engineering? Do you want to make a difference? You could be one of our 54k+ colleagues in over 30 countries working on inspiring projects in the most innovative companies. Join us and start building tomorrows world today! Job Description Join ALTEN UK as a Java Software Engineer and work on an advanced desktop application that processes video data in dynamic and innovative ways. With hybrid working (2 days in Gloucester), youll be at the forefront of engineering solutions for the defence industry while building your skills in complex, high-performance software. Your Responsibilities Develop and enhance desktop applications with Java , Kotlin , and Jetpack Compose UI for seamless video processing. Work on new features, including an export system and in-memory caching using temporal resolution layers . Debug, test, and maintain software using Cucumber and JUnit frameworks to ensure reliability and performance. Collaborate with cross-functional teams to design and implement innovative solutions for video rendering challenges. Support deployment processes using the WIX Toolset for Windows installations. Contribute to the evolution of high-security, defence-related software applications requiring precision and excellence. Qualifications 210 years experience in software engineering. Proficiency in Java and Kotlin , ideally for desktop development (Windows). Familiarity with OpenGL for graphical processing and rendering. Knowledge of Gradle build tools and WIX Toolset for Windows packaging. Strong background in testing frameworks like Cucumber and JUnit . Security clearance eligibility for defence-related projects. Additional Information Why join us? We foster a community of dually talented individuals who are both entrepreneurs and technology specialists. Our teams embody the spirit of innovation and entrepreneurship, enabling us to develop solutions most efficiently. Our commitment to sustainable growth is unwavering, and we continuously strive for accelerated transformation and continuous improvement. Through ALTEN labs, mentoring programs, internal universities, and more, we are always pushing boundaries and embracing new possibilities. We offer incredible opportunities to join inspiring projects in the most innovative companies. We prioritise your career development with personalised support plans tailored to your own aspirations. We're here to empower you and help you reach your full potential. Join our passionate team and start building tomorrow, today! In short you get: A personalised career path and a rewarding management style A chance to work on the most exciting engineering projects and technologies along with Premium Customers A huge diversity of engineering projects and industries A competitive salary Private Medical & Travel Insurance Pension Scheme Cycle-to-work Scheme among many additional benefits Social atmosphere, regular gatherings, and team buildings Flexible way of working (role dependent) JBRP1_UKTJ