Senior Software Engineer

Company: Sirius Digital Services

Location: Portsmouth

Posted: May 1st, 2026

Senior Software Engineer

Salary: Negotiable plus benefits, pension (7% contribution), 25 days holiday & life insurance


We are looking for senior software engineers with a range of levels of experience including designing and delivering software applications.


We are a small but rapidly growing consultancy, owned by four highly experienced and recognised practitioners in UK defence consultancy. We are looking for candidates with a mix of technical expertise and interpersonal skills, able to work independently or in small teams.


The Role:

As a Software Engineer, you will play a major role in developing code in the Software Modelling and Simulation, autonomy and geospatial fields, along with providing key advice around innovation and new techniques to stakeholders. You will be designing solutions for complex challenges that will meet and exceed user requirements.


Responsibilities will include:


  • Expertise Required:


    About You:

    We are looking for candidates who can help the company grow and can offer exciting opportunities for those with the drive to develop their own skills and those of the company. We offer competitive salaries and packages, and the opportunity for rapid advancement for the right candidates.


    The successful candidate must be able to demonstrate the following attributes:


    Essential


    Desirable:



    Other Requirements:

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