HR Business Partner Location: Castle Donington (on-site, 5 days per week - non-negotiable)Salary: 47,50012 month FTC We are seeking a highly effective Operational HR Business Partner to join our aviation client''s high-performance People Team, supporting a large, multi-shift workforce across a safety-critical, 24/7 operation. This is a key role partnering with senior operational leaders and managers to deliver high-impact HR support on the ground, ensuring a consistent, proactive, and solutions-led approach to people management.Working on-site at their Castle Donington operation, you will be the visible HR lead for a diverse client group of c. 500+ colleagues across engineering, logistics, operations, and frontline support teams.This is an exciting opportunity for an HR professional who thrives in fast-paced, high-volume environments where the ability to anticipate issues, influence managers, and maintain operational continuity is essential. Key ResponsibilitiesAs the on-site HRBP, you will take the lead on all core HR activity across the operation, including:Managing employee relations cases end-to-end, including disciplinary, grievance, performance, and attendanceSupporting and advising on shift patterns, rosters, and resource planning in a regulated, time-critical environmentLeading HR involvement in operational change initiatives, restructures, and continuous improvement programmesConducting and sometimes leading robust investigationsCoaching managers to build people mana