Simulation Software Engineer; C#

Bristol or Stevenage | Hybrid (2–3 days onsite)

You will develop real-time, performance-critical simulation software used to model complex defence systems (e.g. missile systems, sensors, and system interactions).

• 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 teams

• Strong C# software engineering experience in a real‑time or performance‑sensitive context
• Experience with real‑time systems, simulation, or systems modelling
• Solid understanding of:
• Multithreading / concurrency
• Performance optimisation

We are particularly interested in candidates from:

• Real‑time / embedded systems engineering
• Simulation or modelling of physical systems
• High‑performance or low‑latency software development

• 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)

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.

Share your profile for a confidential discussion with a specialist technical recruiter.