Interim HR Advisor

  • Gofractional
  • Apr 27, 2026
Full time HR / Recruitment

Job Description

JOB SUMMARY

We're looking for an experienced HR Advisor to join OP London on a 6-month fixed-term contract. This role is a key part of the HR team, providing practical, people-focused guidance across the full employee lifecycle.

You'll act as a trusted advisor to employees and managers, offering fair, consistent, and legally compliant HR advice across employee relations, performance management, payroll, benefits, and learning & development. This is a hands on role suited to someone confident operating in a fast-paced, collaborative environment.

RESPONSIBILITIES HR Advice & Employee Support
  • Act as a first point of contact for employee and manager HR queries, providing fair, timely, and practical guidance
  • Advise managers on day to day people management, including navigating sensitive or challenging conversations
  • Support performance management processes, including goal setting, development planning, and role clarity
  • Support employees through family leave processes, ensuring clarity, consistency, and a positive experience before and after leave
  • Proactively support employee wellbeing and mental health initiatives
  • Manage medical leave cases and Occupational Health referrals, escalating where appropriate
  • Partner with Operations to ensure compliance with health and safety requirements
  • Plan and deliver employee engagement initiatives and learning sessions
  • Stay up to date with UK employment law and HR best practice
Payroll & Benefits
  • Manage and coordinate monthly payroll processes, ensuring accuracy and timeliness
  • Partner with Finance and payroll teams on reporting and reconciliation
  • Maintain and administer employee benefits, including enrolments, changes, and audits
  • Communicate benefits clearly and support employees in understanding their entitlements
Employee Relations
  • Manage employee relations matters including performance improvement plans, probation outcomes, and conduct concerns
  • Partner closely with senior HR leaders on complex or sensitive cases
  • Support organisational change initiatives, including restructures and redundancy consultation processes
Compliance, Reporting & Processes
  • Ensure ongoing compliance with UK employment law and internal policies
  • Support internal and external audits and people related reporting
  • Oversee processes related to right to work and migrant worker compliance
  • Contribute to the development and improvement of HR policies and procedures
Onboarding, Offboarding & HR Operations
  • Deliver HR inductions for new starters and support a positive onboarding experience
  • Issue offer letters and employment contracts
  • Manage onboarding and offboarding processes, including exit interviews and insight led recommendations
  • Support freelancer and contractor processes, including right to work checks and compliance requirements
  • Maintain accurate HR systems and employee records
Learning & Development
  • Support the delivery of learning and development initiatives for managers and employees
  • Ensure completion of mandatory training requirements
  • Support apprenticeship programs and early talent initiatives
REQUIREMENTS
  • Proven experience in a generalist HR Advisor or similar role, ideally within Advertising, Media, or a similar creative industry
  • Strong knowledge of UK employment law
  • Confident managing employee relations matters with empathy and consistency
  • Comfortable balancing advisory work with operational delivery
  • Highly organised, detail oriented, and proactive
  • Strong interpersonal skills with a collaborative, people first approach
  • Embodies our values of Excellence, Changemaking & Togetherness