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Salary
≈ $43k – $96k per year (Estimated)
Location
In office (London)
Visa
No sponsorship (stated in the posting)
Employment
Part-Time

Confirmed on the employer's own hiring board on Oct 28, 2026. First seen by Alion on Oct 27, 2026.

Overview
Company
Impact
Profile match
Holistic AI provides governance, risk and audit software for organisations deploying artificial intelligence at scale. Founded in 2018 in London by researchers from University College London, it assesses models for bias, robustness and regulatory exposure. The company works with employers subject to automated hiring audit laws.

We have an opening for a pragmatic, hands-on HR Manager to support our growing international team of 40+ employees. This is a broad generalist role, combining day-to-day HR delivery with the opportunity to build and improve the people practices needed as the business scales. You will partner with the co-founders and managers, provide practical HR advice and ensure our people processes are consistent, effective and appropriate. This role will suit a self-starter and someone who is comfortable operating with autonomy. We want someone who can deliver what the business needs today while building the foundations it will need tomorrow.

As the role is offered on a part-time basis, there is flexibility to agree a working pattern that works for both you and the business. Regular office presence will be required and is an important part of the role.

N.B. Only applicants that area fully eligible to work in the UK without restriction or need for sponsorship will be considered.

What you'll do

HR Advice & Employee Relations

  • Act as the primary point of contact for employees and managers on all HR matters
  • Coach and advise managers on performance, probation, absence, conduct and employee relations
  • Manage sensitive employee matters with sound judgement, confidentiality and appropriate escalation

People Operations

  • Own the employee lifecycle from onboarding through to offboarding
  • Maintain contracts, employee records, policies and all HR documentation (we use BambooHR)
  • Ensure HR data integrity and maintain effective, consistent onboarding and offboarding workflows
  • Support on payroll, visa sponsorship and benefits administration
  • Coordinate with IT on employee equipment and asset management

International HR & Compliance

  • Support employees and contractors across multiple countries
  • Identify any employment, compliance and people risks early
  • Maintain practical, fit for purpose policies and processes as we grow

Talent & Organisation

  • Support recruitment and hiring where required, working with hiring managers and sourcing support
  • Support managers with onboarding, probation and ongoing development
  • Build and maintain university partnerships and support the delivery of internship programmes

what you'll bring

  • Bachelor’s Degree
  • 6+ years broad HR generalist experience, ideally within a start-up, scale-up
  • Confidence to operate autonomously
  • Strong working knowledge of the employee lifecycle and employee relations
  • Competent understanding of UK Employment Law
  • Experience maintaining an HRIS and ensuring accurate people data (BambooHR/HiBob)
  • Strong judgement and confidence in advising managers
  • Excellent communication and interpersonal skills
  • Prior experience as a Level 1 user for the UK Visas & Immigration SMS
  • Highly organised with strong attention to detail
  • Able to handle confidential matters appropriately

Nice to have

CIPD qualification and/or membership

Location and working model

Central London location - Bedford Square, nearest tube is Tottenham Court Road

Regular presence expected on-site (3 days in the office)

Compensation

We offer competitive salary and benefits; details shared during the hiring process

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