Human Resources Business Partner

About the role

Amentum, a global engineering and technology solutions company, is seeking a Human Resources Business Partner to support its Modernization business line. The HRBP provides timely, effective HR services and acts as a strategic partner to Program Managers and leadership within the Mission Readiness & Modernization portfolio. The role is based in Sierra Vista, AZ, to ensure consistent on-site support.

Key responsibilities

• Partner with Program Managers and leaders to foster an inclusive, high-performance culture and support workforce development.
• Implement HR policies and best practices, drive organizational change and advocate for business needs.
• Work with Talent Acquisition and Operations to assess staffing needs and ensure an efficient onboarding process.
• Advise managers and employees on performance management, employee relations, communications, training and interpretation of employment laws and company policies.
• Provide on-site guidance to strengthen employee engagement and address workforce concerns.
• Maintain a thorough understanding of employment laws to minimize risk and ensure compliance.
• Conduct stay and exit interviews, identify trends and support retention strategies.
• Assess training needs and deliver or coordinate non-operational training.
• Lead group presentations on company policies, processes and recurring programs such as orientation and benefits enrollment.
• Support program start-up activities, including communications, briefings, onboarding, coordination with leadership and functional teams, and system setup.
• Proactively research labor laws and regulations and recommend appropriate actions.

Required profile

• 5+ years of hands-on human resources experience.
• Experience providing HR leadership to a diverse workforce.
• Ability to operate with minimal supervision and build strong relationships across all levels of the organization.
• Strong written communication, organizational skills and attention to detail.
• Ability to obtain and maintain a Secret clearance (U.S. citizenship required).
• Desired: PHR or SHRM-CP certification, experience with Deltek Costpoint and Workday HRIS, prior government contracting experience, active Secret clearance.

Required skills

• Knowledge of HR disciplines: recruiting, talent management, benefits, compensation, employee relations, training and performance management.
• Strong knowledge of federal and state employment laws.
• Proficiency in Microsoft Office and ability to learn new systems quickly.

What we offer

• Salary range of $65,000 - $75,000.
• Health, dental and vision insurance, paid time off and holidays.
• Retirement benefits including 401(k) matching, educational reimbursement and parental leave.
• Employee stock purchase plan, tax-saving options, disability and life insurance, and pet insurance.