Job Description

Mary Road, Guildford GU1 4QU, UK
Circa 50K - 85K per annum, DOE + Benefits, Bonus and Relocation
Permanent
Advertised on: 29/12/2025
Kaon are recruiting for a Senior Java Software Engineer. Check it out now!
Senior Java Software Engineer - User Interfaces
Location: Guildford, GU1 4QU
Salary: Circa 50K - 85K per annum, DOE + Benefits, Bonus and Relocation
Contract: Full time, Permanent
Benefits: Competitive salary, Annual bonus, Private medical insurance, Membership fees to professional organisations, such as the IET or BCS, 8% employer pension contribution, Cycle to work scheme, Relocation assistance, Annual salary and development appraisal and 25 days annual leave + all bank holidays
We are Kaon Ltd and we are recruiting - could this be the opportunity for you?
Kaon is a small, dynamic company located in Guildford, Surrey. We are an industry leading organisation providing solutions for the defence sector, specialising in cutting edge bespoke sonar processing systems, including: DSP and image processing systems; high data rate networks and high-rate data recorders.
Our size makes us dynamic and flexible and we maintain an open attitude to embracing emerging technologies. Our size also means we have a fast development cycle from early research and initial concepts through to implementation and deployment in real-world situations. We work closely with our customers and the technology we develop is designed to fit their specific needs.
We take pride in our products and Kaon's success is a result of the skills and effort of our engineering team which is made up of signal processing, acoustic, software and systems engineers. Due to our continued success, we are looking to expand our highly skilled engineering team.
The Role:
We are currently seeking a senior Java software engineer who specialises in user interfaces to join our engineering team. The successful applicant will work as part of a team utilising your software development skills in the delivery of bespoke cutting-edge sonar systems for deployment on Royal Navy ships and submarines.
Kaon employees have the opportunity to operate across the whole product lifecycle: working on proposals; engaging with customers; helping design, specify and implement advanced sonar systems; testing, acceptance and delivery; and providing support for deployed systems in the UK and abroad.
In addition to this you will be responsible for:

• Undertaking user interface software design, implementation and testing for real-time applications;
• Software design documentation, code reviews and unit testing;
• Software and System design reviews, acceptance testing and support;
• Guiding software development teams;
• Mentoring and developing junior members of the development team;
• Demonstrating good practice and identifying areas of improved practice and efficiency;
• Analysis of user requirements and specification of system requirements;
• Participation in customer meetings;
• Identifying emerging technologies and analysing benefits and risks of adoption;
• Understanding hardware architectures and appropriate software optimisations;
• Analysing and understanding performance, efficiency and risk of software and hardware technologies with respect to wider system engineering considerations;
• Occasional travel to customer and contractor sites.

Please note that due to the nature of Kaon's work this post is office-based and only open to UK Nationals who are willing and able to satisfy Government / MoD security vetting procedures.
Essential Skills and Qualifications:

• Minimum of 6 years Java - Experience in developing Java software real world applications;
• Java - Experience of the language and GUI frameworks such as Java Fx and Java Swing;
• GUI Development - Experience in developing intuitive data visualisation displays and understanding customer requirements;
• Knowledge of and familiarity with Linux software development and deployment;
• Experience analysing and understanding user requirements;
• Understanding of software development and design processes, documentation and testing;
• Understanding of revision control, code review processes and unit testing;
• Knowledge of development services, such as GitLab;
• Experience of mentoring and developing junior software developers;
• Experience of leading software development teams;
• A good university degree, or equivalent, in a relevant engineering or scientific discipline.

Required Personal Skills:

• A professional, adaptable and flexible attitude to work;
• Good team-working and communication skills;
• A methodical and objective approach to testing;
• An appreciation of wider system engineering considerations;
• A willingness to learn;
• A good command of the English language, both written and oral.

Any of the following skills would be advantageous but are not essential:

• Project management experience and qualifications;
• Networking - Understanding of IP protocols and their mapping to software applications and/or Ethernet switch configurations for network optimisation;
• Understanding of software implementation for real-time systems;
• Low Level Interfacing - Understanding of hardware level aspects associated with controlling and writing/using Linux driver interfaces;
• High standard of proficiency in C/C++;
• Experience of MATLAB and/or Python for signal processing or mathematics applications;

We will offer you:

• Small company with a supportive, inclusive and friendly working environment;
• Your own workspace with large desk;
• Central Guildford location close to town centre amenities and mainline train station;
• On-site car and bike parking;
• New, purpose built, offices with additional facilities, including EV charging stations.

If you feel you have the necessary skills and experience to be successful in this role click on 'APPLY' today!
No agencies please.

Skills Required