Senior HR Advisor

Gallagher Re; Greater London; On-site; GBP 100,000 - 125,000; Full time

Job summary

A leading global reinsurance firm is seeking an experienced Senior HR Advisor to provide expert HR advice and support. In this dynamic role, you'll manage a range of HR activities, focusing on employee relations and ensuring compliance with HR best practices. You'll be responsible for providing guidance on complex issues, contributing to performance management processes, and building strong relationships with stakeholders. This role offers a competitive salary and an array of benefits, including a defined contribution pension scheme and a generous holiday allowance.

Benefits

Minimum of 25 days holiday plus bank holidays

Defined contribution pension scheme

Life insurance up to 10x salary

Health cash plan or private medical insurance

Discounted gym membership

Qualifications

• Experienced HR professional with a focus on delivering HR solutions.
• Experience in advising on conduct, grievance, and performance issues.
• Understanding of HR best practices and compliance.

Responsibilities

• Provide expert HR advice to managers and employees.
• Manage complex casework including absence and grievances.
• Support annual HR processes such as pay reviews.

Skills

CIPD qualification or equivalent experience

Knowledge of employment law

Strong planning and organizational skills

Ability to build strong relationships

Education

CIPD qualification

Job description

Introduction

At Gallagher Re, we bring clarity to complexity by helping clients around the world make confident, data‑driven decisions in a rapidly evolving risk landscape. Here, you’ll be part of a team that leverages world‑class analytics and deep reinsurance expertise to deliver strategic advisory services and transactional excellence. Together, we transform advanced insights and market intelligence into strategies that protect businesses, drive performance, and shape the future of reinsurance. We’re a community of decision makers, future shapers, and trusted experts working side by side to deliver meaningful impact through innovative thinking and practical solutions. At Gallagher Re, your curiosity is welcomed, your growth is championed, and your work truly matters. This is a place where you'll have the freedom to explore new ideas, take ownership of your career, and collaborate with people who are as driven and inquisitive as you are.

Overview

Are you an experienced HR professional with a passion for delivering high‑quality, commercially focused HR solutions? We are seeking an experienced Senior HR Advisor to join our team. This is an exciting opportunity to work in a fast‑paced, dynamic environment, providing expert HR advice and support to managers and employees within our Gallagher Re business.

As a Senior HR Advisor, you will play a key role in ensuring HR best practices are implemented while delivering timely and professional HR support. You will work closely with the HR Business Partner to manage a wide range of HR activities, with a strong focus on employee relations. Acting as a trusted advisor, you will provide guidance on complex cases, including absence, disciplinaries, grievances, performance, and sickness, ensuring compliance with employment law and company policies.

You will also contribute to annual HR processes, such as performance management, pay reviews, and benefits administration, collaborating with internal teams to deliver seamless outcomes. With a proactive approach, you will build strong relationships with stakeholders, coach and mentor line managers, and support the continuous improvement of HR services.

How you’ll make an impact

• Build effective relationships with managers, providing expert HR advice and coaching to enhance people management capabilities.
• Manage complex casework, including absence, disciplinaries, grievances, and performance issues, ensuring compliance with policies and legislation.
• Support performance management, pay reviews, and benefits administration, ensuring accuracy and alignment with business objectives.
• Work closely with colleagues to ensure seamless service delivery, covering for team members as needed and contributing to team projects.
• Produce reports and track casework using HR systems and tools, ensuring accurate and timely documentation.

About You

• CIPD qualification or equivalent demonstrable experience.
• Experience of providing advice on conduct, grievance, capability, absence, and organisational change.
• Knowledge of employment law, HR policies, and best practices.
• Strong planning, organisational, and decision‑making skills.
• Ability to build strong relationships with stakeholders and influence outcomes.
• Right to work in the UK.

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Compensation and benefits

On top of a competitive salary, great teams and exciting career opportunities, we also offer a wide range of benefits.

Below are the minimum core benefits you’ll get, depending on your job level these benefits may improve:

• Minimum of 25 days holiday, plus bank holidays, and the option to ‘buy’ extra days
• Defined contribution pension scheme, which Gallagher will also contribute to
• Life insurance, which will pay 4x your basic annual salary, which you can top‑up to 10x
• Income protection, we’ll cover up to 50% of your annual income, with options to top up
• Health cash plan or Private medical insurance

Other benefits include:

• Three fully paid volunteering days per year
• Employee Stock Purchase plan, offering company shares at a discount
• Share incentive plan, HMRC approved, tax effective, stock purchase plan
• Critical illness cover
• Discounted gym membership, with over 3,000 gyms nationally
• Season ticket loan
• Access to a discounted voucher portal to save money on your weekly shop or next big purchase
• Emergency back‑up family care
• And many more…

We value inclusion and diversity

Inclusion and diversity (I&D) is a core part of our business, and it’s embedded into the fabric of our organisation. For more than 95 years, Gallagher has led with a commitment to sustainability and to support the communities where we live and work.

Gallagher embraces our employees’ diverse identities, experiences and talents, allowing us to better serve our clients and communities. We see inclusion as a conscious commitment and diversity as a vital strength. By embracing diversity in all its forms, we live out The Gallagher Way to its fullest.

Gallagher is Disability Confident Committed. We have pledged to make sure our recruitment process is inclusive and accessible, in addition to supporting our existing employees with any long‑term health conditions or disabilities.

We understand that applicants may have disabilities, if you do, you may find some parts of the recruitment process more challenging than others. Don’t worry, we’re here to help, however, we can only do this if you let us know.

Should you require reasonable adjustments to your application, please get in touch with [e-mail] . If you’d prefer to speak on the phone, please request a call back, leaving details, so we get in touch.

Our employing entity, Arthur J. Gallagher Services (UK) Limited, is proud to be accredited as a Living Wage employer with the Living Wage Foundation. We are committed to diversity and opportunity for all and are opposed to any form of less favourable treatment on the grounds of gender or gender identity, marital status, civil partnership status, parental status, race, ethnicity, colour, nationality, disability, sexual orientation, religion/ belief, age and those with caring responsibilities.

Gallagher believes that all persons are entitled to equal employment opportunity and prohibits any form of discrimination by its managers, employees, vendors or customers based on race, color, religion, creed, gender (including pregnancy status), sexual orientation, gender identity (which includes transgender and other gender non‑conforming individuals), gender expression, hair expression, marital status, parental status, age, national origin, ancestry, disability, medical condition, genetic information, veteran or military status, citizenship status, or any other characteristic protected (herein referred to as “protected characteristics”) by applicable federal, state, or local laws.

Equal employment opportunity will be extended in all aspects of the employer‑employee relationship, including, but not limited to, recruitment, hiring, training, promotion, transfer, demotion, compensation, benefits, layoff, and termination. In addition, Gallagher will make reasonable accommodations to known physical or mental limitations of an otherwise qualified person with a disability, unless the accommodation would impose an undue hardship on the operation of our business.