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# Senior Software Engineer

- **Company:** Sirius Digital
- **Location:** Portsmouth, UK
- **Experience:** Expert
- **Salary:** £30,000.0 - £50,000.0
- **Contract:** Permanent contract
- **Skills:** Microsoft Word, Microsoft Excel, Software Applications, C Sharp (Programming Language), C++ (Programming Language), Computer Simulation, Python (Programming Language), Microsoft Office, Language Modeling, Microsoft PowerPoint, Digital Twin, Modeling and Simulation, Unreal Engine, Software Coding
- **Published:** July 22, 2026
- **Apply:** https://www.adzuna.co.uk/jobs/details/5804704449

## About the Role

* At least 5 years experience in designing and implementing performant software applications.
 * Proficient in C/C++ or C# and Python.
 * Ability to understand and describe a range of software modelling and simulation techniques.
 * Ability to analyse use cases and project data context to determine specifications and requirements.
 * Experience in one or more of the following technical disciplines: Videogame engine technology (e.g. Unreal Engine, Godot), Entity or Event based Simulation, Robotics and Autonomous Systems.
 * Understand varied codebases and be confident in making changes to large projects.
 * Understand performance and hardware constraints.
 * Building customer and stakeholder relationships.
 * Supporting and leading authoring of technical reports and presenting to customers.
 * Be willing to travel across the UK and comfortable to work at client sites for periods.
 * Degree level education or equivalent relevant experience in a STEM/computing background.
 * Proficient in MS Office, especially Excel, PowerPoint, Word.
 * Candidates must have an existing right to live and work in the UK.
 * Candidates need to undergo an internal BPSS check prior to site access.
 * Candidates must hold or be willing to undergo a Security Clearance check (SC level).

## Description

* Designing, developing and delivering software solutions using a range of techniques, including Wargames, Modelling and Simulation, Robotic and Autonomous systems, Digital Twins and Synthetic Environments.
 * Applying mathematical and computational methods to tackle real world problems and developing novel approaches.
 * Delivering technical consulting projects and products, with opportunities to lead some of these projects.
 * Building new relationships and maintaining current customer relationships.
 * Providing key advice around innovation and new techniques to stakeholders.
 * Developing code in Software Modelling and Simulation, autonomy and geospatial fields.
 * Analyzing existing use cases to inform project specifications and requirements.

Technologies:

 * C#
 * Excel
 * Hardware
 * Python
 * Robotics
 * Security
 * Unreal
 * GameDev
 * C++


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