Human Resources Operations Manager in London

Since 1999, UST has worked side by side with the world’s best companies to make a powerful impact through transformation.

Headquartered in the United States, UST is powered by technology, driven by AI, inspired by people, and led by our purpose.

We partner with our clients from design to operation.

Our AI-driven digital solutions, proprietary platforms, engineering, R&D, products, and innovation ecosystem turn core challenges into impactful, disruptive business outcomes.

With deep industry knowledge and a future-ready mindset, we infuse expertise, innovation, and agility into our clients’ organisations, delivering measurable value and positive lasting change for them, their customers, and communities around the world.

Together, with 30,000+ employees in 30+ countries, we build for boundless impact, touching billions of lives in the process.

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The Opportunity

We are looking for an experienced HR Operations Manager to join our HR team in our London Marble Arch office.

This broad, hands-on role supports our people and business across the UK and Europe, covering HR Operations, employee relations, employee lifecycle management, TUPE, M&A, organisational change and employee experience.

You will partner with HR colleagues, managers and senior stakeholders to keep our HR services efficient, compliant, scalable and people-focused.

You will be flexible and comfortable working in an ever-changing environment, solution-focused and adaptable, with strong judgement, integrity and discretion.

What You'll Do

• HR Operations & Employee Lifecycle
• Support HR Operations across the end-to-end employee lifecycle, from onboarding to offboarding, across the UK and Europe.
• Ensure HR processes, records and employment documentation (offer letters, contracts, employee changes) are accurate, compliant and timely.
• Guide employees and managers on HR policies, benefits and employment matters, and resolve queries on leave, benefits and compensation.
• Maintain high standards of HR data quality, records retention and governance.
• Employee Relations
• Provide pragmatic, commercially sound guidance to managers on employee relations matters.
• Manage grievances, disciplinary matters, absence management, performance issues and workplace investigations, including complex cases progressing to ACAS or Employment Tribunal.
• Apply strong knowledge of UK employment law alongside an understanding of HR practices across Europe.
• Partner with HR leadership and Legal, handling sensitive matters with judgement, integrity and discretion.
• TUPE, M&A & Organisational Change
• Support HR Operations for mergers, acquisitions, TUPE and organisational change across the UK and Europe, including employee data, documentation, consultation and transition.
• Partner with HR, Legal and business stakeholders to coordinate people-related change.
• Ensure clear communication and effective HR support for employees during transformation.
• Employee Experience & Engagement
• Create a consistent, positive employee experience, including onboarding and induction into UST.
• Support engagement, communications, recognition, culture, Diversity & Inclusion and employee listening initiatives.
• Use employee feedback and operational insight to simplify HR processes and recommend practical improvements.
• HR Partnership
• Collaborate with specialist HR teams across Compensation & Benefits, Employee Relations, Learning & Development, Performance Management, Talent and HR Systems.
• Build effective relationships with managers and stakeholders across the UK and Europe to deliver a joined-up HR experience.
• Support the management of external HR vendors, consultancies and service providers, monitoring performance against agreed expectations.
• Contribute to vendor and consultancy decisions where appropriate.
• Produce monthly, quarterly, annual and ad-hoc HR reports, using trend analysis to identify operational improvements.
• Maintain accurate employee data and strong HR data governance.
• Champion improvements in operational efficiency, scalability, compliance and employee experience.
• What We’re Looking For
• Strong HR Operations experience within a complex, international or matrixed organisation.
• Demonstrable HR experience supporting employees, managers and business stakeholders across both the UK and Europe.
• Strong working knowledge of UK employment law, with experience or familiarity with European employment practices.
• Experience supporting organisational change, ideally including TUPE transfers and M&A-related HR activity in the UK and/or Europe.
• Experience supporting the complete employee lifecycle, with a strong understanding of HR policies, governance and compliance.
• Experience with HRIS platforms, employee data and producing HR metrics and management information.

Qualifications

• CIPD Level 5 or equivalent is highly desirable; other relevant HR or business qualifications are advantageous.

Skills & Attributes

To be successful in this role, you will be

• Flexible and comfortable working in an ever-changing environment, adapting quickly as priorities evolve.
• Solution-focused and adaptable, with a pragmatic approach to resolving complex HR matters.
• Someone with strong judgement, integrity and discretion, particularly in sensitive and confidential situations.
• A credible communicator who builds trusted relationships with employees, managers and senior stakeholders across the UK and Europe.
• Analytical and commercially aware, balancing employee experience, commercial requirements, policy and employment risk.
• What We Believe

At UST, we believe in building for boundless impact.

We value curiosity, integrity, agility and a solution-oriented mindset.

If you enjoy evolving priorities, strong collaboration and making a tangible difference to the employee experience, we would love to hear from you.