Senior Mechanical Engineer

Amentum is a leader in global engineering, project management and solutions integration, trusted to modernise the most critical missions anywhere in the world. Driven to create a safer, smarter, cleaner world, we innovate as a team of inventive doers passionate about making a difference. Underpinned by a strong culture of ethics, safety and inclusivity. Amentum is fiercely committed to operational excellence and successful execution.

Are you seeking a career that offers a healthy work-life balance, a friendly company culture, and engagement with a supportive community?

We’ll inspire and empower you to deliver your best work so you can evolve, grow and succeed – today and into tomorrow. We offer an exciting range of opportunities to develop your career within a supportive and diverse team who always strive to do the right thing for our people, clients and communities.

People are our greatest asset, and we offer a competitive package to retain and attract the best talent.

Our values stand on a foundation of safety, integrity, inclusion and diversity. We put people at the heart of our business, and we genuinely believe that we all succeed by supporting one another through our culture of caring. We value positive mental health and a sense of belonging for all employees.

Amentum is proud to be an Equal Opportunity Employer, please refer to our Enterprise Agreement and www.fairwork.gov.au for more information.

Role Title: Senior Mechanical Engineer

Primary Responsibilities: Under the direction of the IWP Engineering Manager, the role is responsible for delivering day-to-day systems engineering activities across the full lifecycle of Defence capability projects. Operating within a multidisciplinary team, the role ensures that engineering solutions meet operational requirements, safety standards and sustainment objectives in accordance with the Engineering Management System (EMS).

The key responsibilities of the role include, but not limited to:

• Undertake requirements engineering to ensure system needs are accurately captured, traceable, and validated.
• Lead or contribute to preliminary and detailed design phases of Engineering Change Proposals (ECPs), ensuring alignment with operational needs.
• Perform technical investigations to resolve engineering issues.
• Draft Statements of Work for acquisition activities, ensuring technical completeness and contractual clarity.
• Draft technical investigation reports, and engineering lifecycle documentation for ECPs.
• Implement the system safety program, including hazard analysis, risk assessments, and safety case development.
• Plan and execute Verification and Validation (V&V) activities as part of engineering change management, ensuring design integrity and compliance with requirements.
• Develop or contribute to service requirements definition to support maintenance planning and sustainment strategies.
• Identify supply items for codification and coordinate with logistics officer to complete codification and data enrichment in ERP.
• Conduct Logistics Support Analysis and sparing analysis to optimise inventory and supportability.
• Provide engineering support including SQEP reviews and technical advice.

Essential Requirements:

• Degree qualification (Mechanical or Mechatronics Engineering, or related discipline).

• Australian Citizenship.

• Hold or ability to obtain NV1 security clearance.
• Experience in a Department of Defence, preferably in Maritime Domain.
• Highly developed organisational and analytical skills.
• Knowledge of Design, Technical Investigation and V&V.
• Demonstrated ability to develop positive working relationships through high level communication skills.

Desirable Requirements:

• Previous exposure to Australian Defence Force (ADF) Capability Acquisition and Sustainment Group and/or Marine Engineering Industry.
• Experience with Configuration Management Tool – Unified (CMT-U), Asset Maintenance Planning System (AMPS), NAVALLOW and/or SAP S4/HANA, DOORS, and other Naval Logistics Information System (NLIS) tools.

Salary Range Depending on Experience: $175 to $185K

Required Security Clearance Level: NV1

Location: Defence Plaza Sydney

Weekly Hours: 40

Amentum is proud to be an Equal Opportunity Employer. Our hiring practices provide equal opportunity for employment without regard to race, sex, sexual orientation, pregnancy (including pregnancy, childbirth, breastfeeding, or medical conditions related to pregnancy, childbirth, or breastfeeding), age, ancestry, United States military or veteran status, color, religion, creed,  marital or domestic partner status, medical condition, genetic information, national origin, citizenship status, low-income status, or mental or physical disability so long as the essential functions of the job can be performed with or without reasonable accommodation, or any other protected category under federal, state, or local law. Learn more about your rights under Federal laws and supplemental language at Labor Laws Posters.