Mechanical Engineer and GNC Engineer

Mechanical Engineer and GNC Engineer

Codematix Pty Ltd, an Australian technology company specialising in advanced electromechanical systems for high-performance, mission-critical applications, is seeking experienced professionals to join its team in Sydney, NSW. You will collaborate with experienced engineers and global technology partners, contributing to the delivery of advanced solutions from concept through to deployment.

Role 1: Senior / Principal Mechanical Engineer

Location: Sydney, NSW Salary: Competitive salary package (commensurate with experience) Work Type: Full-time | Permanent | On-site

This technically challenging, hands-on/leadership role involves leading the mechanical design and development of advanced electro-optical systems and precision gimbal assemblies. You will be responsible for mechanical architecture, precision design, thermal analysis, structural optimisation, and product industrialisation, driving products from concept through prototype, qualification, and commercial deployment.

Key Responsibilities:

• Lead end-to-end mechanical design and development of advanced EO/IR gimbal systems.
• Develop mechanical requirements, specifications, verification plans, and technical documentation.
• Design precision mechanical assemblies using CATIA and modern CAD tools.
• Define mechanical interfaces across optics, electronics, sensors, actuators, and structural components.
• Perform or oversee FEA, thermal analysis, CFD simulations, and structural optimisation.
• Lead precision bearing, actuator, and motion system selection.
• Optimise mechanical performance through tolerance analysis, dynamic balancing, vibration isolation, lightweight structures, and backlash reduction.
• Support sensor alignment, boresight processes, and manufacturing method development.
• Drive Design for Manufacture (DFM) and Design for Supportability initiatives.
• Lead engineering design reviews, technical risk assessments, and engineering change activities.
• Support system-level performance optimisation alongside controls, electronics, optical, software, and systems engineering teams.

Qualifications:

• Bachelor's degree or higher in Mechanical Engineering or Mechatronics Engineering.
• 5-10+ years of experience in advanced mechanical product development.
• Proven experience delivering products from concept through commercial production; not just prototype development.
• Strong expertise in precision mechanical design, CATIA, FEA, thermal analysis, and structural engineering.
• Experience with precision mechanisms, servo systems, stabilised platforms, or motion control.
• Knowledge of tolerance analysis, vibration isolation, dynamic balancing, and lightweight structures.
• Experience leading technical design reviews and cross-functional engineering teams.
• Previous experience acting as a Design Authority or technical lead is highly regarded.
• Experience within Defence, Aerospace, EO/IR, Robotics, or other high-precision engineering environments is advantageous.
• Ability to obtain and maintain an Australian Defence NV1 Security Clearance.

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Role 2: Senior / Principal Guidance, Navigation & Control (GNC) Engineer

Location: Sydney, NSW Salary: Competitive salary package (commensurate with experience) Work Type: Full-time | Permanent | On-site

We are seeking an experienced Senior to Principal GNC Engineer to lead the development of advanced control systems for high-performance electro-optical gimbal and guidance technologies. You will be responsible for designing, modelling, implementing, and optimising stabilisation, tracking, navigation, and control algorithms, working closely with multidisciplinary engineering teams throughout the product lifecycle.

Key Responsibilities:

• Design and develop guidance, navigation, and control architectures for EO/IR systems.
• Develop and optimise line-of-sight stabilisation and target tracking algorithms.
• Design servo control systems and advanced control loops.
• Model gimbal dynamics and analyse control-structure interactions.
• Develop pointing, tracking, stabilisation, and jitter performance budgets.
• Integrate IMUs, gyroscopes, encoders, resolvers, and actuator systems.
• Develop simulation environments using MATLAB/Simulink or equivalent platforms.
• Perform stability analysis, frequency-domain analysis, and dynamic system modelling.
• Support sensor calibration, boresighting, verification, qualification, and flight testing.
• Develop engineering specifications, interface definitions, verification plans, and technical documentation.
• Conduct technical trade studies and engineering risk assessments.
• Support production transition and continuous product improvement.
• Collaborate with multidisciplinary teams including software, electronics, optical, mechanical, systems, and test engineers.

Qualifications:

• [Qualifications for GNC Engineer to be inserted here as per original listing data.]