Simulation and Modelling Engineer

World Class Defence Organisation based in Stevenage and Bristol is currently looking to recruit a Systems Performance Modelling Engineer subcontractor on an initial 12 month contract.  Your base site can be either…

Inside IR35 Hybrid Engineering
Pay rate £85/hour
Contract type Contract
Posted 13 October 2026

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About this contract

Overtime Rate

World Class Defence Organisation based in Stevenage and Bristol is currently looking to recruit a Systems Performance Modelling Engineer subcontractor on an initial 12 month contract.  Your base site can be either Stevenage or Bristol, depending on your preference. The role can be worked on a 4 day week basis (Monday to Thursday) but due to the nature of the work, the position will need to be based onsite.  
 
This role would be suitable for a Simulation and Modelling Engineer (Matlab / Simulink) ideally from the defence or aerospace industry.
 
Rate: £85.00 per hour
Location: Your base site can be either Stevenage or Bristol, depending on your preference
Hybrid / Remote working: The role will based onsite.  A compressed 4-Day week of Monday to Thursday is possible
Contract: 37 Hours per week
Overtime: Hours worked over 37 hours per week will be calculated at ‘time and a quarter’
Duration: 12 Months (initially and then ongoing and long-term thereafter)
IR35 status: Inside IR35 (Umbrella)

Systems Performance Modelling Engineer Job Description:
 
We are looking for a modeller to produce models of the seeker RF Radar. The model includes the seeker hardware, digital processing and target environment. The modelling team is responsible for developing the model, producing auto-code, generating seeker performance predictions and interfacing the seeker model into the missile dynamic reference model.
 
Responsibilities (to include):

Modelling in Matlab and Simulink using model-based design techniques
Producing parts of a complex Seeker model including modelling the target scenario, seeker hardware and processor algorithms
Develop and implement algorithms within the model
Producing and verifying auto-code for the software algorithms from the model
Carrying out seeker performance assessment
Producing a simpler representation of the model for use in the missile model
Upgrading legacy Seeker models to newer MATLAB/Simulink Vectors
Documenting the model changes and creating test vectors 
Due to the sensitive nature of the work it is predominantly done onsite but there is some flexibility depending on project.
 
Skillset / experience required:

Tools:

Simulink
Matlab 
Skills:

Modelling for auto-coding
Assessing suitability of algorithms in the model
Aptitude for converting an algorithm into a Simulink model (desirable)
Familiarity with Radar and Control Systems (desirable)
Familiarity with Digital Signal Processing (desirable)
RF experience (desirable)
Experience in C (not essential)
Technical report writing
Model delivery experience

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