At Amentum, we're not just solving problems; we're engineering the future. Our team is driven by an unyielding commitment to innovation, integrity, and collaboration, tackling some of the most significant challenges in science, security, and sustainability. If you're passionate about making a real impact and want to be part of a community that values ethical excellence, this is the place where your ambition can thrive. Here, we believe that success comes from continuously pushing boundaries and working together to deliver on our promises. We embrace challenges with confidence and are dedicated to creating a secure and vibrant future for all. We'll inspire and empower you to deliver your best work so you can evolve, grow and succeed - today and into tomorrow. We offer an exciting range of opportunities to develop your career within a supportive team who always strive to do the right thing for our people, clients and communities. People are our greatest asset, and we offer a competitive package to retain and attract the best talent. In addition to the benefits you'd expect, UK employees also receive free single medical cover and digital GP service, family-friendly benefits such as enhanced parental leave pay and free membership of employee assistance and parental programmes, plus reimbursement towards relevant professional development and memberships. Work-life balance and flexibility is a key focus area for us. We're happy to discuss hybrid, part-time and flexible working hours, patterns and locations to suit you and our business. About the opportunity We're seeking a UK GDO HR Regional Advisor to support the business and HR function through a period of significant change and transformation. You'll deliver end-to-end HR administration, partnering with GDO and HR Operations teams in the UK and Poland, and improving regional processes to sustain service quality during the transition. This is a Hybrid role based in Glasgow, reporting to the UK GDO HR Regional Manager. Accountabilities Manage HR enquiries from employees and managers via ServiceNow. Own resolution of escalated UK Employee Lifecycle cases, including complex issues. Escalate issues to HR Operations teams, ensuring complete and accurate information is captured and shared. Act as a regional Workday expert: troubleshoot issues for our International population and take ownership of processing event corrections, cancellations, and rescinds. Actively work alongside the GDO HR Regional Manager to examine case trends, flag recurring issues, and develop and implement fixes. Challenge ways of working and drive process improvements to increase efficiency. Review, update, and develop regional process documentation. Support GDO and HR projects as required. Timely processing of employee lifecycle changes, liaising with Payroll and internal teams in line with company procedures. Maintain employee data in Workday. Provide ad hoc support to the UK People Operations Partner team on regional activities. Produce and analyse standard and ad hoc reports. You'll manage a high-volume workload to tight deadlines. Requirements HR experience in an administrative or advisory environment Basic knowledge of UK HR employment practices Strong attention to detail Well organised; able to prioritise and meet deadlines Practical, flexible approach Clear written and verbal communication; able to interpret and explain complex information to varied audiences Good working knowledge of Microsoft Word and Excel Desirable Experience in an HR shared services environment Confidence to provide initial guidance on employee relations queries Experience using advanced formulas in Microsoft Excel (e.g. VLOOKUP, XLOOKUP, etc) Our Culture Our values are built on a strong foundation of safety, integrity, and respect for every individual. People are at the heart of our mission, and we believe in supporting one another through a culture of care and collaboration. We strive to create a workplace where everyone feels they belong and can thrive. Supporting mental wellbeing and fostering a sense of connection are essential to how we work. When we embrace different perspectives and work together, we become more innovative, more agile, and more successful. We partner with VERCIDA, for greater online accessibility please visit www.vercida.com to view and access our roles. As a Disability Confident employer, we will interview all disabled applicants who meet the minimum criteria for a vacancy. We welcome applications from candidates who are seeking flexible working and from those who may not meet all the listed requirements for a role. If you require further support or reasonable adjustments with regards to the recruitment process (for example, you require the application form in a different format), please contact the team. Compensation Details: GBP The compensation range or hourly rate listed for this position is provided as a good-faith estimate of what the company intends to offer for this role at the time this posting was issued. Actual compensation may vary based on factors such as job responsibilities, education, experience, skills, internal equity, market data, applicable collective bargaining agreements, and relevant laws. Benefits Overview: Our health and welfare benefits are designed to support you and your priorities. Offerings include: Health, dental, and vision insurance Paid time off and holidays Retirement benefits (including 401(k) matching) Educational reimbursement Parental leave Employee stock purchase plan Tax-saving options Disability and life insurance Pet insurance Note: Benefits may vary based on employment type, location, and applicable agreements. Positions governed by a Collective Bargaining Agreement (CBA), the McNamara-O'Hara Service Contract Act (SCA), or other employment contracts may include different provisions/benefits. Original Posting: 04/28/2026 - Until Filled Amentum anticipates this job requisition will remain open for at least three days, with a closing date no earlier than three days after the original posting. This timeline may change based on business needs. Amentum is proud to be an Equal Opportunity Employer. Our hiring practices provide equal opportunity for employment without regard to race, sex, sexual orientation, pregnancy (including pregnancy, childbirth, breastfeeding, or medical conditions related to pregnancy, childbirth, or breastfeeding), age, ancestry, United States military or veteran status, color, religion, creed, marital or domestic partner status, medical condition, genetic information, national origin, citizenship status, low-income status, or mental or physical disability so long as the essential functions of the job can be performed with or without reasonable accommodation, or any other protected category under federal, state, or local law. Learn more about your rights under Federal laws and supplemental language at Labor Laws Posters .