At Iron Mountain we know that work, when done well, makes a positive impact for our customers, our employees, and our planet. That's why we need smart, committed people to join us. Whether you're looking to start your career or make a change, talk to us and see how you can elevate the power of your work at Iron Mountain. We provide expert, sustainable solutions in records and information management, digital transformation services, data centers, asset lifecycle management, and fine art storage, handling, and logistics. We proudly partner every day with our 225,000 customers around the world to preserve their invaluable artifacts, extract more from their inventory, and protect their data privacy in innovative and socially responsible ways. Are you curious about being part of our growth stor?y while evolving your skills in a culture that will welcome your unique contributions? If so, let's start the conversation. Iron Mountain is seeking an experienced HR Generalist to join our Human Resources team. In this role, you will be responsible for providing expert HR advice and coaching to People Leaders, leading the local execution of operational change (like reorganizations), and ensuring compliance with local UK employment laws to maintain a respectful and high-performing workplace. The role plays a key part in reducing legal risk and ensuring fair treatment across the business. What You'll Do (Core Responsibilities) In this role, you will: Provide expert advice and coaching on complex employee relations issues, performance management, discipline, and grievances to upskill People Leaders and ensure sound, consistent judgment. Collaborate closely with HR Business Partners, Centres of Excellence, and legal teams to deliver consistent, effective HR solutions and ensure alignment between global and local priorities. Lead the local execution of organizational changes, including large and small reorganizations or reductions in force (RIFs), by ensuring legal compliance, managing communication, and handling consultation and severance processes. Manage local labour relations by fostering strong relationships with unions and works councils, leading negotiations, conducting thorough investigations, and managing grievances. Support the local delivery of global HR projects and provide essential expertise during mergers, acquisitions, and employee transfers, guaranteeing smooth implementation aligned with local needs. What You'll Bring (Skills & Qualifications) The ideal candidate will have: 5 years of progressive experience in an HR Generalist or Employee Relations focused role within the UK. Strong knowledge of UK labour law and practical application of HR policies and best practices to ensure compliance and reduce organizational risk. Proven ability in stakeholder management, influence, and judgment to navigate complex, sensitive employee issues and build trusted relationships across a matrixed environment. A Professional HR certification such as CIPD is highly preferred. Full professional proficiency in English is required. Travel - Willing to travel within the UK up to 10% travel to maintain business knowledge and key relationships with team members and stakeholders. What We Offer (Benefits) Competitive compensation and benefits aligned with the experience. Flexible work options to support work-life balance. Comprehensive health, wellness, and retirement plans. Opportunities for continuous learning and professional growth. Category: Human Resources Iron Mountain is a global leader in storage and information management services trusted by more than 225,000 organizations in 60 countries. We safeguard billions of our customers' assets, including critical business information, highly sensitive data, and invaluable cultural and historic artifacts. Take a look at our history here. Iron Mountain helps lower cost and risk, comply with regulations, recover from disaster, and enable digital and sustainable solutions, whether in information management, digital transformation, secure storage and destruction, data center operations, cloud services, or art storage and logistics. Please see our Values and Code of Ethics for a look at our principles and aspirations in elevating the power of our work together. If you have a physical or mental disability that requires special accommodations, please let us know by sending an email to accommodationrequest@ironmountain.com. See the Supplement to learn more about Equal Employment Opportunity. Iron Mountain is committed to a policy of equal employment opportunity. We recruit and hire applicants without regard to race, color, religion, sex (including pregnancy), national origin, disability, age, sexual orientation, veteran status, genetic information, gender identity, gender expression, or any other factor prohibited by law. To view the Equal Employment Opportunity is the Law posters and the supplement, as well as the Pay Transparency Policy Statement, CLICK HERE Requisition: J0095940