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Careers at ECM Selection
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Senior Software Developer

Full Time
full time
7 Oct 2025
Guildford

About the job

Please note, candidates are required to secure Developed Vetting (DV) clearance for this role. This requires you to be a British citizen and have resided in the UK for at least 10 years.

This company is seeking experienced software developers to join their multi-disciplinary team developing integrated solutions to tough problems in the security and defence sectors. You will help develop innovative image and signal processing algorithms sitting on top of specialist hardware. This might require optimisation for low power environments or novel adaptations of existing technologies to new sensor data. Your work will expand to more sophisticated software projects in the cyber security industry, as well as creating UIs for electronic gizmos using web technologies.

You will be working alongside other bright software and hardware engineers on varied and challenging projects. You will have the opportunity to lead and mentor other engineers, as well as be supported to achieve your own career goals. With other experienced engineers to learn from and cutting-edge technical challenges to solve, this is a great place to continue developing your technical skills.

Requirements:

  • Commercial-grade experience developing and maintaining complex systems in C/C++
  • Familiarity with web UI technologies (HTML, JavaScript, etc) and Linux systems
  • Strong academic background including a 1st or 2:1 or PhD in a numerate subject and A’s or A*’s in Maths and Physics at A Level
  • Strong communication skills both for client work and for mentoring and leading team members
  • British citizenship and UK residency for at least 10 years

Due to the sensitive nature of much of the work you will perform you are required to be in the office every day, however the company understands everyone’s schedules are different and so supports flexible working hours. Additionally, they offer a competitive remunerations package including generous employer contribution pensions and annual performance related bonuses.

Keywords: C++, Python, JavaScript, Typescript, Embedded C, Linux, DSP, Digital Signal Processing, Algorithms, Image Processing, Rust, Radio Communication Systems, Surrey

Please note: even if you don't have exactly the background indicated, do contact us now if this type of job is of interest - we may well have similar opportunities that you would be suited to. And of course, we always get your permission before submitting your CV to a company.

Recommend for £250 - see www.ecmselection.co.uk/tell-a-friend for details.

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Turrior uses artificial intelligence to create job listings, automate candidate screening, conduct video interviews, and apply comprehensive AI scoring — helping companies hire faster, more accurately, and with lower operational costs.

Key benefits:

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  • Video interviews with AI-based answer analysis
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  • Recruitment process automation and reduced time-to-hire

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