Senior HR Adviser

Hybrid working | Flexible working pattern including 4-day week option We are partnering with a large, well-established organisation to recruit a Senior HR Adviser to join a busy operational site. This is a key role within the wider People function, supporting day-to-day HR delivery while also contributing to broader people initiatives that drive performance, engagement, and culture. This is a highly visible, hands-on position where you will work closely with site leaders and managers to provide practical HR support and help shape a positive, high-performing working environment. The role offers hybrid working, with 1–2 days per week from home, along with the option to work a four-day week arrangement. Duties and Responsibilities * Build strong, trusted relationships with operational leaders to understand priorities and support delivery of the people agenda * Act as a first point of contact for managers, providing clear and pragmatic HR advice across a broad range of people matters * Manage and support employee relations cases including absence, conduct, grievance and performance issues, ensuring fair and consistent outcomes * Analyse HR data and people metrics to identify trends, risks and opportunities for improvement * Coach and support managers in developing effective people management capability * Support workforce planning activity and organisational change within operational teams * Contribute to employee engagement initiatives and help foster a positive and inclusive workplace culture * Work collaboratively with employee representatives and support consultation processes where required * Support recruitment activity, including workforce planning and talent pipeline development * Ensure performance management processes are embedded effectively and completed within required timelines * Contribute to HR projects and continuous improvement activity across the site and wider organisation * Maintain up-to-date knowledge of employment legislation and ensure compliance across all HR activity Essential Criteria * Proven experience in a generalist HR role within a fast-paced operational environment * Strong working knowledge of core HR disciplines including employee relations, performance management, engagement and workforce planning * Confident managing employee relations casework and advising managers on complex and sensitive issues * Ability to interpret HR data and use insight to support practical decision-making * Strong communication and influencing skills with the ability to challenge constructively at all levels * Highly organised, proactive and able to manage a varied workload effectively Desirable Criteria * CIPD qualified or working towards * Experience within a unionised environment * Exposure to learning and development or talent initiatives * Familiarity with HR systems and reporting tools This role offers * Varied and hands-on HR role with genuine scope to make an impact * Opportunity to work closely with senior site leadership and influence the people agenda * Hybrid working model with flexibility, including a 4-day week option * Exposure to a broad range of HR activity across operational and group-level initiatives * Strong focus on learning, development and career progression within a larger organisation * Supportive and collaborative working environment with involvement in meaningful people projects