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Simulation Software Engineer

Job Posted: a month ago

Salary: £ 50,000 - 57,000 / Annum
Job Type: Permanent
Location: Stevenage

Expire in: 2 days

Job Description

C# Real-Time Simulation Engineer (Defence Systems) 
Bristol | Hybrid (2–3 days onsite) | Sole British nationals only

 Before you apply - This is not a general software or web development role.
 We are not looking for candidates whose experience is primarily in:

Web / backend (.NET APIs, enterprise systems)
Mobile or front-end development
Data analytics without real-time systems experienceThe role (what you’ll actually be doing) You will develop real-time, performance-critical simulation software used to model complex defence systems (e.g. missile systems, sensors, and system interactions).
 Your work will:

Run under real-time constraints where timing and determinism matter
Interface with hardware-in-the-loop rigs and test environments
Support verification, validation, and demonstration of physical systems
Contribute to distributed simulation environments used across engineering teamsWhat you’ll need
Strong C# software engineering experience in a real-time or performance-sensitive context
 (not typical enterprise/web applications)
Experience with real-time systems, simulation, or systems modelling
Solid understanding of:
Multithreading / concurrency
Performance optimisation
Software design for deterministic systems
Experience working in:
Agile environments
Test-driven development / unit testing
CI/CD pipelinesIdeal backgrounds (highly relevant) We are particularly interested in candidates from:

Defence, aerospace, or robotics
Real-time / embedded systems engineering
Simulation or modelling of physical systems
Game engine development (Unity/Unreal) with a strong systems/programming focus
High-performance or low-latency software development
Due to security classification, this role is only open to sole British nationals.

 What you’ll get
Bonus up to £2,500
Pension matched up to 14%
Paid overtime opportunities
Onsite facilities (subsidised meals, free parking)
Enhanced parental leave (up to 26 weeks)Why this role is different 
This is an opportunity to work on engineering-grade software, not business systems. Your code directly contributes to real-world system behaviour, testing, and validation of advanced defence technology.
 
Next step 
Share your profile for a confidential discussion with a specialist technical recruiter.

Thank you for your interest. If you do not hear from us within seven working days, please presume your application has been unsuccessful on this occasion. You may resubmit your CV or details in the future, and we shall assess your suitability then

Before You Apply

Do not include the following in your job application, CV, or cover letter:

Bank details.
National Insurance number.
Date of birth.

You should not be asked for payment or irrelevant information. If you have concerns about a job advert or employer, seek guidance on how to proceed.

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