Senior Human Resources Business Manager

Leidos is seeking an experienced Senior Human Resources Business Manager (Sr. HRBM) to join our best-in-class HR organization. Located in San Diego, CA, this role will serve as a strategic partner to programs across the Defense sector with an initial focus on supporting senior leadership within the Space and Non-Kinetic Effects Business Areas. This position will also provide guidance and partnership to additional business area leaders, contribute to new business and capture efforts, and lead key HR initiatives and special projects.

This is a high-impact role within a dynamic and evolving business environment, offering the opportunity to shape, influence, and execute people and organizational strategies that drive performance, support growth, and strengthen leadership effectiveness. Key responsibilities include partnering closely with program leadership to develop and implement HR initiatives aligned to near-term business priorities; providing proactive workforce and strategic staffing support; leading ongoing organizational assessments; and identifying strategies to enhance engagement, retention, morale, and change readiness.

The Sr. HRBM will work cross-functionally to design solutions, influence decision-making, and support execution through effective partnership with business leaders and functional stakeholders. They will also be required to build strong, collaborative relationships applying sound business judgment to understand current and emerging needs across programs and initiatives.

The Sr. HRBM will leverage matrixed HR Centers of Expertise and the HR Shared Services organization to deliver integrated, high-quality HR solutions. Areas of focus will include culture and engagement, performance management, talent development, employee and labor relations, organizational change management, total rewards alignment, workforce strategy, strategic talent acquisition, leadership development, and organizational development.

Primary Responsibilities:

• Partner with senior business and program leaders to understand operational priorities and translate them into people strategies that enable mission execution, growth, and program delivery.
• Lead strategic workforce planning to ensure the organization attracts, develops, retains, and deploys the right talent aligned to current and future program needs.
• Serve as a trusted advisor on organizational design, leadership effectiveness, culture, and overall organizational health.
• Design, implement, and continuously refine HR initiatives that support business objectives and strengthen organizational capability.
• Provide guidance to leadership on key HR priorities, including workforce management, succession planning, change management, and retention strategies.
• Build and maintain strong, influential relationships with leaders at all levels to promote a high-performing, inclusive, and collaborative culture.
• Champion the performance management process to ensure alignment with business goals, accountability, and meaningful employee development.
• Provide expert support and coaching on employee and workplace relations matters, ensuring fair outcomes and compliance with policies and employment regulations.
• Use HR data, analytics, and metrics to assess trends and evaluate the effectiveness of HR programs and interventions.
• Ensure HR policies, procedures, and practices are effectively executed and consistently applied across programs and teams.

Required Qualifications:

• Bachelor’s degree in Human Resources, Business Administration, or a related field (or equivalent experience), and 12+ years of relevant HR experience.
• Broad HR subject matter expertise, including experience serving as an HR Business Partner supporting senior and/or executive leadership in a mid- to large-sized organization for at least 2 years.
• Demonstrated knowledge of and compliance with California employment and labor laws, including wage and hour, leave administration, and employee relations best practices.
• Proven experience coaching, influencing, and partnering with leaders at all levels, with demonstrated success leading organizational and cultural change.
• Proven experience leading and executing change management initiatives, including organizational design, workforce transitions, and culture transformation.
• Experience developing and implementing HR strategies and solutions aligned to business priorities and enterprise HR direction.
• Strategic, proactive problem-solver with the ability to think big picture while designing practical, agile, and results-focused solutions.
• Strong business acumen with the ability to diagnose organizational needs and support data-informed decision-making to drive change.
• Strong project management and organizational skills, with ex