Quest Global
Senior Modelling & Control Engineer
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Job Requirements
At Quest Global, it’s not just what we do but how and why we do it that makes us different. With over 25 years as an engineering services provider, we believe in the power of doing things differently to make the impossible possible. Our people are driven by the desire to make the world a better place—to make a positive difference that contributes to a brighter future. We bring together technologies and industries, alongside the contributions of diverse individuals who are empowered by an intentional workplace culture, to solve problems better and faster.
We are seeking an experienced Senior Modelling and Control Engineer to join our Aerospace & Defence engineering team. The successful candidate will be responsible for developing, analysing, simulating, and validating complex dynamic system models and control algorithms for advanced aerospace and defence applications.
Key Responsibilities
- Develop, maintain, and validate dynamic system models using MATLAB and Simulink.
- Design, implement, and tune control algorithms for complex aerospace and defence systems.
- Develop state machines, logic-based control architectures, and supervisory control functions using Stateflow.
- Perform system modelling, simulation, stability analysis, and performance assessment.
- Translate system requirements into mathematical models, control system architectures, and executable simulations.
- Conduct linear and nonlinear modelling, system identification, sensitivity analysis, and parameter estimation.
- Support model-based systems engineering (MBSE) activities and model-based development workflows.
- Develop and execute simulation test cases to verify control system performance against technical requirements.
- Perform model verification, validation, and troubleshooting, identifying design issues and recommending corrective actions.
- Support software-in-the-loop (SIL), processor-in-the-loop (PIL), and hardware-in-the-loop (HIL) testing where applicable.
- Collaborate with systems engineers, software engineers, hardware teams, and test engineers to ensure seamless integration of control solutions.
- Produce technical documentation, modelling reports, design specifications, and verification evidence.
- Provide technical leadership, mentoring, and guidance to junior engineers.
- Contribute to design reviews, technical risk assessments, and continuous engineering improvement activities.
- Ensure engineering outputs comply with relevant aerospace and defence standards, safety requirements, and quality processes.
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Work Experience
Essential Skills and Experience
Modelling and Simulation
- Strong practical experience with MATLAB, Simulink, and Stateflow.
- Proven experience developing complex dynamic system models and simulation environments.
- Strong understanding of mathematical modelling, system dynamics, and differential equations.
- Experience with linear and nonlinear system modelling, simulation, and performance analysis.
- Ability to interpret system requirements and convert them into executable models.
Control Systems Engineering
- Strong understanding of classical and modern control theory.
- Experience designing and tuning feedback and feedforward control systems.
- Knowledge of stability analysis, controllability, observability, and system response analysis.
- Experience with control system optimisation, parameter tuning, and performance trade-offs.
- Understanding of closed-loop control architectures and real-time control system behaviour.
Verification and Validation
- Experience with model verification, validation, and simulation-based testing.
- Ability to develop test scenarios, assess model fidelity, and investigate simulation results.
- Familiarity with requirements traceability and verification evidence.
- Experience with SIL, PIL, or HIL environments would be advantageous.
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Engineering Tools and Practices
- Experience with version control and collaborative engineering workflows, such as Git or SVN.
- Familiarity with requirements management tools such as IBM DOORS or equivalent.
- Knowledge of model-based design and automated testing practices.
- Experience with MATLAB toolboxes relevant to control design, such as Control System Toolbox and Simulink Control Design.
Desirable Skills
- Experience within aerospace, defence, avionics, guidance, navigation and control (GNC), flight control, or mission systems.
- Familiarity with embedded control software development and real-time systems.
- Knowledge of automatic code generation using Simulink Coder or Embedded Coder.
- Experience with model-based systems engineering (MBSE) and tools such as SysML-based modelling environments.
- Understanding of safety-critical engineering processes and standards, such as DO-178C, DO-331, ARP4754A, or relevant defence engineering standards, where applicable.
- Familiarity with requirements-based testing, configuration management, and formal design reviews.
- Experience working within multidisciplinary and regulated engineering environments.
Qualifications And Experience
- Degree in Aerospace Engineering, Control Systems Engineering, Electrical and Electronic Engineering, Mechanical Engineering, Systems Engineering, or a related discipline.
- Typically 5–10+ years of relevant engineering experience, with demonstrable expertise in modelling and control system development.
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