HR & Administration Assistant

Millenium Site Services UK Ltd is a specialist rail sector contractor, working across Paint, GRP, Glass, and Engineering division based at our head office & across customer sites around the country. This is a varied role combining HR administration, PA/EA support to the CEO and Heads of Department and general marketing duties at our Derby Head Office. You'll support HR, administration, and site operations across the workforce, acting as a key point of contact for staff and management, and helping keep our sites running smoothly. * Monitor staff absence and maintain accurate records * Support and sit in on disciplinary meetings, taking notes and ensuring correct process is followed * Provide PA/EA support to the CEO and Head of Engineering (diary management, correspondence, meeting coordination) * Organise and coordinate staff across sites (rotas, scheduling, resourcing support) * Manage staff holiday requests and records * Support basic payroll administration * Assist with basic marketing activity * Manage and update company social media accounts * General HR administration duties as required What we're looking for * Previous experience in an HR administration or PA/EA role (preferred) * Strong organisational and time-management skills * Confident communicator, comfortable liaising with staff at all levels * Discretion and professionalism when handling sensitive matters * Basic marketing experience * Proficient in Microsoft Office (Word, Excel, Outlook) * Full UK driving licence (if travel to other sites required)