Human Resources Generalist

The Human Resources Generalist functions as a vital, autonomous human resource partner within Amentum's Corporate Human Resources Department, specifically assigned to provide dedicated, high-level operational support to the Facilities Operations & Maintenance (O&M) and asset infrastructure programs at the Joint Defence Facility Pine Gap. Operating within a highly complex, dual-jurisdiction matrix environment (Australia and the United States), this role delivers comprehensive, professional human resources advice, casework management, and program administration.

The HR Generalist moves beyond basic workflow processing to independently execute Employee Relations (ER) triage, policy application, and management coaching for program leadership. By overseeing personnel data systems, auditing contract variabilities, and actively advising contract directors on local labor-management strategies, this position directly secures program-wide continuity of business and insulates critical defense infrastructure operations from organizational or industrial risk.

This position reports to an HR Manager or Deputy Manager for work task guidance, prioritization, mentoring, and professional development needs.

Day shift – 5 days per week, 8 hours per day (Contracted 40 hours per week) as standard to align with business and workforce needs. This professional position requires autonomous time-management, with flexible working hours expected to resolve complex employee relations actions or fulfill strategic program milestones.

• Employee and Industrial Relations Management: Provide professional, front-line advice and coaching to team supervisors and managers regarding policy interpretation, basic entitlements, performance improvement plans, and employee grievances. Assist program leadership with localized industrial relations planning, information tracking, and business continuity strategy tied to Enterprise Agreement (EA) renewal cycles.
• HR Workflow Oversight: Manage and optimize end-to-end personnel actions, complex mobilization/demobilization workflows, structural contract variations, and compliance-driven onboarding pipelines utilizing Workday and specialized corporate database tools.
• Dual Jurisdiction Compensation Audits: Overlook the execution and local compliance of benefits tracking systems for US expatriate/TDY personnel and superannuation-choice alignments for Australian employees, auditing files to identify and correct data variances.
• Data Integrity & Audit Ownership: Act as the primary local compliance owner for all AU and US HRIS and payroll-adjacent data entry fields. Ensure absolute file readiness and data accuracy to satisfy strict company policy, statutory workplace laws, and rigorous government defense audit frameworks.
• Process Improvement & Policy Customization: Evaluate, design, and update local HR standard operating procedures (SOPs), onboarding packages, and localized workplace policies to ensure clear alignment with evolving regional legislation and site operational changes.
• Records Security & Confidentiality: Maintain total operational security and absolute discretion when handling, reviewing, and archiving highly sensitive personnel, commercial-in-confidence documentation, or labor relations strategy files.
• Safety & Compliance Leadership: Actively promote Amentum’s corporate safety culture and drug-free workplace standards, ensuring all workforce practices comply fully with environmental and Workplace Health and Safety (WHS) codes.

• Experience: Minimum 2–4+ years of professional experience in human resources administration, generalist operations, or an advisory-level corporate support role.
• Systems Expertise: Proven, hands-on experience utilizing Workday or an equivalent enterprise-tier HRIS software platform to process and audit multi-layered workflows.
• Communication & Discretion: Exceptional verbal and written communication skills with intermediate-toadvanced capability in SharePoint and the Microsoft Office Suite. Demonstrated ability to negotiate sensitive conversations, maintain executive confidentiality, and present technical policy details clearly to diverse stakeholders.
• Autonomy & Analytical Skills: Advanced problem-solving, independent decision-making, and critical thinking capabilities, with a proven track record of working with limited direct supervision.
• Education: Certificate IV in Human Resources (or a closely related Business/Corporate discipline); a relevant bachelor’s degree or Higher Education Diploma is strongly preferred.
• Licensing: Current, valid Australian open Driver’s Licence.

• Industry Context: Experience supporting defense industry programs, aerospace, heavy industry, or government contracting environments.
• Matrix Operations: Proven success operating within a dual AU/US corporate matrix or supporting multinational personnel tracking.
• Compliance Knowledge: Sound foundational knowledge and operational understanding of both the Australian Fair Work Act (FWA) and the United States Fair Labor Standards Act (FLSA).

• It is a condition of employment that the employee maintains adequate medical clearance applicable to this role.
• Physical Demands: Desk-based, predominantly sedentary position requiring prolonged use of computers, integrated corporate databases, and system interfaces. Occasional lifting or transport of secure office files or induction collateral up to 5kg.
• Mental Demands: High cognitive demand requiring advanced problem-solving, emotional intelligence, and swift context-switching. Must seamlessly transition between high-stakes management advisory sessions, confidential employee casework, and highly detailed data-integrity audits under minimal supervision.

• Required: Minimum Active or ability to obtain an Australian Negative Vetting 1 (NV1) or U.S. Secret equivalent Department of Defense Security Clearance, and the ability to maintain that clearance. Depending on ongoing mission requirements and access parameters, the candidate may be required to obtain a higher Australian Top Secret Positive Vetting (TSPV) or U.S. Top Secret clearance.

All personnel assigned to work at JDFPG and associated facilities shall be:

• At least 18 years of age
• Able to fluently read, write, and speak the English language

All Amentum personnel are responsible for understanding and complying with all site Environmental, Health and Safety requirements (EHS). While Amentum is responsible for providing a safe workplace and is responsible for ensuring compliance with these requirements, each person is responsible for:

• Completing work tasks in a safe manner to include using the appropriate Personal Protective Equipment (PPE)
• Red-Carding a Job. Employees have a right and responsibility to “STOP WORK” for themselves or others if a job is unsafe or presents danger to the environment.
• Reporting any unsafe acts or conditions to their supervisor and/or the program EHS Manager
• Continuous adherence to the EHS procedures throughout the performance of their work