Job Description
What will you be doing?
Are you an experienced Java Developer looking to apply your skills in a real-world, high-stakes environment? ALTEN UK is delivering solutions that support underwater defence systems—technology critical to national security and maritime operations. As a Senior HCI Developer, you'll play a key role in improving Human-Computer Interfaces for this complex domain. If you have solid Java experience and a passion for creating intuitive, functional UIs, this is your chance to make a tangible impact.
Location:
Cheadle (Manchester)
Hybrid working model – 2/3 days on-site
Key Responsibilities:
* Develop and refine user interfaces for advanced underwater defence systems using Java, Java Swing, or JavaFX.
* Write new scripts from scratch and contribute to pull requests for modifying and enhancing existing codebases.
* Work in Linux-based environments, collaborating closely with product owners and cross-functional teams.
* Perform unit testing, static analysis (e.g. Klocwork), and refactoring to maintain code quality.
* Understand and work with complex interface designs, contributing to performance and usability improvements.
* Maintain strong technical documentation throughout the development lifecycle.
Qualifications
Experience, skills and qualifications required:
Essential Skills:
* 5+ years of Java development experience, ideally with exposure to UI work.
* Experience in Linux-based software development (not .NET or Windows).
* Strong background in unit testing, static analysis, and code quality practices.
* Comfortable working with complex UI interfaces and cross-functional engineering teams.
* JavaFX experience is a plus, but not essential – willingness and ability to pick it up is key.
* Strong documentation and communication skills.
Additional Qualifications:
* A Bachelor’s or Master’s degree in a relevant technical discipline such as Computer Science, Software Engineering, Electronics, or a related field.
* Alternatively, a technical military background with hands-on experience in software, systems, or interface development within a defence or mission-critical environment will also be considered.
* A strong understanding of engineering principles, system design, and software lifecycle processes is highly desirable.
Security Clearance Requirement:
* Eligibility to obtain SC Clearance (5 Year UK residency minimum)
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 Insurance
* Pension Scheme
* Cycle-to-work Scheme among many additional benefits
* Social atmosphere, regular gatherings, and team buildings
* Flexible way of working (role dependent)