At Amentum, our mission is to bring advanced engineering and technology solutions to the most significant challenges in science, security, and sustainability. Guided by our vision of creating a secure and vibrant future, we are dedicated to fostering a culture of excellence, innovation, and inclusion. As a vital member of our HR team, you will have the opportunity to drive impactful initiatives that shape the future of a growing business line while ensuring the well-being and success of our workforce. Join our Intelligence & Cyber Business Unit as a Human Resources Manager to help shape the strategy behind our most critical asset: our people. In this role, you will be providing HR leadership to the Senior Vice Presidents (SVP’s) of 2 Business Lines consisting of 2,500+ employees, leading a HR team, driving impactful organizational change, and aligning HR strategies with business objectives to foster growth, innovation, and success in a dynamic and evolving environment. **Key Responsibilities:** + Serve as a trusted coach to senior leaders, guiding them in developing and executing HR strategies that drive business success, enhance organizational performance, and foster sustainable growth through effective people initiatives. + Collaborate closely with the business to drive employee engagement and retention initiatives, nurturing a culture of trust and high performance. + Partner with leadership to navigate the complexities of government contracting requirements, providing customized HR solutions with a focus on building trust and alignment. + Engage with business leaders to guide change management efforts, fostering collaborative thought leadership and empowering teams to navigate transformation effectively. + Foster a collaborative and innovative HR team environment by promoting professional development, accountability, and shared success. + Develop trusted narratives using accurate HR data and insights to support strategies that attract, engage, and retain top talent. + Cultivate strong relationships across the organization to manage and support all aspects of the HR lifecycle, including onboarding, assimilation, talent development, performance management, succession planning, and offboarding. + Collaborate with the Talent Acquisition team to co-create and execute attraction and recruitment strategies, amplifying talent mobility efforts to meet both organizational and employee goals. + Lead strategic workforce planning initiatives by analyzing current and future talent needs, identify skill gaps, and partnering with leadership to develop and implement workforce strategies that align with business goals. + Partner with Centers of Excellence (COEs), including HR Operations, Total Rewards, and Talent Management, to seamlessly integrate initiatives that elevate employee engagement and organizational effectiveness. + Provide hands-on HR support for proposal efforts, aligning objectives with organizational needs, and leading HR-related contract stand-up activities to ensure smooth onboarding and operational readiness. + Build connections through site visits (up to 20%) to engage leaders, address local HR needs, and strengthen **Required Qualifications:** + 8-10 years of progressive HR experience + 3-5 years previous management experience with a proven track record of building and leading effective teams. + Demonstrated expertise in government contracting environments + Proven strategic HR experience with a strong ability to align HR practices to business objectives. + Strong financial business acumen to partner effectively with leadership and understand business metrics. + A forward-leaning attitude with a focus on driving growth and innovation in HR practices. + Active Security Clearance **Desired Qualifications:** + TS/SCI security clearance or eligibility + SHRM-SCP or equivalent + Workforce Planning Certification + Familiarity with Workday systems and analytics