Human Resources Manager

Oxera Consulting LLP; Greater London; Hybrid; GBP 20,000 - 42,000; Part time

Job summary

Oxera Consulting LLP in London-based European offices is seeking a part-time HR Manager or Officer to support the Senior HR Manager across Europe, focusing on employee relations and payroll processes. The role combines hands-on HR with policy development in a dynamic, collaborative environment.

You will line-manage two payroll administrators, help implement HR policies, and serve as the trusted point of contact for employees and managers in multiple jurisdictions.

Qualifications

• Proven hands-on experience in a broad HR generalist or HR management role.
• Strong employee relations background with the ability to advise and manage cases across European jurisdictions.
• Experience managing payroll across multiple countries.
• Excellent communication and interpersonal skills; ability to build relationships.

Responsibilities

• Support employee relations matters across Europe from routine queries to complex cases.
• Line manage two payroll administrators (job share) providing day-to-day direction and oversight.
• Manage payroll and benefits processes, ensuring accuracy and compliance and drive process improvements.
• Assist with development and implementation of HR policies and procedures.
• Act as a trusted point of contact for employees and managers with HR queries.

Skills

HR generalist

Employee relations

Payroll management

Cross-country HR

English fluency

Mentoring/led teams

Job description

Location: Any of our European offices, we work a Hybrid working model.

Hours: Part-time 22.5 hours (flexible how these are done over the week)

Start date: No later than October 2026

Role Overview

We are looking for an experienced and proactive Part-Time HR Manager or Officer to join our team. This role provides key support to the Senior HR Manager, with a focus on employee relations across Europe and the effective management of payroll processes. This is a high-impact, varied role at an exciting moment for our team. We are looking for someone who thrives in a dynamic environment, who can build credibility and develop relationships quickly, and brings a willingness to get things done. In return, we offer a genuinely collaborative team spirit, where every day flexibility is supported, but high standards and the willingness to go the extra mile is asked in return.

Key Responsibilities

• Support the Senior HR Manager on employee relations (ER) matters across multiple European jurisdictions, from routine queries through to more complex cases
• Line managing two payroll administrators (job share), providing day-to-day support, direction, and quality oversight
• Managing payroll and benefit processes, ensuring accuracy and compliance, and supporting ongoing integration and process improvement
• Assist with the development and implementation of HR policies and procedures
• Act as a trusted, knowledgeable point of contact for employees and managers with HR queries

What We Are Looking For

• Proven hands-on experience in a broad HR generalist or HR management role
• A strong employee relations background, with the confidence to advise and manage cases independently and an understanding of European employment considerations
• Experience managing payroll, ideally across multiple countries
• Strong organisational skills with a capability to juggle multiple priorities and to work independently
• Comfort with change, ambiguity, and being part a function that is actively evolving
• Excellent communication and interpersonal skills, and motivation to build relationships
• Experience managing or mentoring others within an HR or payroll function
• Strong verbal and written English language skills, additional European languages a benefit

Oxera is an equal opportunities employer and values diversity at all levels of the organisation. We encourage applications from all qualified candidates regardless of race, gender, disability, religion/belief, sexual orientation or age.