HR Manager
As the HR Manager you will be responsible for:
HR Operations & Employee Lifecycle
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Oversee end-to-end HR operations across onboarding, offboarding, payroll coordination, and employee records management.
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Ensure compliance with UK employment legislation and alignment where appropriate with US and European practices.
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Implement and maintain clear, business-led HR policies and procedures, ensuring they are compliant, practical, and scalable.
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Own and manage the HR tech stack (e.g. ADP, iHCM, Lever), including reporting, data integrity, and identifying opportunities to simplify and automate processes.
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Maintain and audit accurate employee records and documentation in line with GDPR requirements.
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Draft and manage employment contracts, letters, and HR documentation.
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Administer UK benefits programmes, liaising with providers, payroll, and internal systems.
Employee Relations & Advisory
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Provide proactive guidance and coaching to functional leaders on organisational design, career frameworks, and performance management.
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Support and upskill managers to effectively use HR tools and drive a high-performance, continuous improvement culture.
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Manage and resolve complex employee relations cases, including disciplinaries, grievances, and investigations, ensuring fair and consistent outcomes.
Talent Acquisition & Onboarding
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Partner with hiring managers and the Talent Acquisition team to support end-to-end recruitment, particularly during peak hiring periods.
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Contribute to candidate screening, interviewing, and stakeholder management.
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Support the development and maintenance of a global library of job descriptions and person specifications.
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Ensure a seamless pre-boarding and onboarding experience, working closely with hiring managers to deliver high-quality inductions.
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Continuously improve recruitment and onboarding processes to enhance candidate and new starter experience.
People Strategy & Projects
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Provide input into remuneration and benefits strategy, including benchmarking and analysis where needed.
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Support organisational design and workforce planning initiatives.
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Contribute to global HR projects, ensuring alignment and consistency across regions.
Skills & Experience
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Proven experience in a hands-on HR Manager or HRBP role, ideally in a scaling or international business.
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Strong working knowledge of UK employment law and HR practices.
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Experience managing employee relations cases end-to-end.
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Exposure to talent acquisition and recruitment processes.
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Experience working with HR systems (e.g. ADP, Lever or similar).
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Strong organisational skills with the ability to manage both operational and strategic priorities.
At ONI, we understand that a fulfilling career involves more than just challenging work - it's about enjoying a well-rounded experience. When you become a part of our team, you not only contribute to groundbreaking research but also enjoy a range of benefits designed to enhance your life both inside and outside the workplace.
