Our client, a prominent entity in the Defence and Security sector, is seeking a dedicated HR Business Partner to join their team in Uxbridge, Middlesex. This permanent role reports to the HR Director and is integral in enhancing organisational effectiveness, driving workforce planning, and fostering a positive employee experience.Key Responsibilities:Strategic Partnership: Build trusted relationships with stakeholders to understand priorities and translate them into people strategies. Provide data-driven insights to support workforce planning and organisational effectiveness. Train managers on people management, talent development, and performance management.Employee Relations and Engagement: Provide expert guidance on employee relations, performance issues, and conflict resolution. Resolve complex ER cases fairly and consistently. Support employee engagement initiatives and culture-building activities.Talent and Performance Management: Assist with succession planning and capability development. Lead the annual performance cycle including goal-setting, mid-year, and year-end reviews. Advocate for internal mobility and career development.Organisational Development and Change: Support the HR Director in organisational design, restructuring, and transformation activities. Lead change management efforts, including communication and stakeholder engagement. Promote continuous improvement and HR best practices.HR Operations and Compliance: Collaborate with HR Centres of Excellence t