Senior HR Advisor

The Vacancy

We are looking for an experienced Senior HR Advisor to join our Environmental Consulting HR team in a role where your advice, judgement and relationship-building skills will make a genuine difference. Supporting a diverse division of approximately 2,000 employees across multiple business units, this is a varied and influential role where your advice will make a genuine difference. You will work closely with managers and senior leaders, helping them manage employee relations, absence, performance and wider people matters in a fair, practical and commercially aware way. You will become a trusted point of contact for day‑to‑day HR advice, balancing the needs of our people with the priorities of the business. Alongside managing your own casework, you will help strengthen manager confidence, improve HR processes and contribute to divisional people projects. This is a hands‑on Senior HR Advisor role for someone who enjoys trusted ER casework, practical manager coaching and improving how HR supports a large, varied consultancy environment.

What You'll Be Doing

• Leading a broad range of employee relations cases, including disciplinary, grievance, capability, probation, flexible working and performance management matters
• Supporting managers through investigations, hearings and appeals
• Advising on short-term and long-term sickness absence, occupational health referrals, return‑to‑work plans and reasonable adjustments
• Coaching managers to apply HR policies and procedures confidently, consistently and fairly
• Preparing clear, accurate and professional case correspondence and guidance
• Identifying risks and presenting practical recommendations on complex or sensitive matters
• Developing trusted relationships with managers and leaders across the division
• Working collaboratively with HR colleagues to maintain accurate records, contracts and documentation
• Contributing to HR projects, process improvements and new ways of working
• Helping us develop efficient, digital and data‑informed HR practices

What We're Looking For

• CIPD Level 5 qualification or equivalent experience
• Proven HR advisory experience, including responsibility for employee relations casework
• Strong working knowledge of UK employment legislation and HR best practice
• Experience managing disciplinary, grievance, absence and performance cases
• The ability to provide balanced, practical and commercially focused advice
• Excellent written and verbal communication skills
• Strong organisation and the ability to manage competing priorities
• Sound judgement and a professional approach to confidential and sensitive matters
• A full UK driving licence and willingness to travel when required

Experience gained within professional services, consultancy or a multi‑business environment would be beneficial. Exposure to organisational change, restructuring, TUPE or acquisitions would also be welcomed, as would experience of HR systems, management information and coaching managers.

What Will Help You Succeed

• Trusted: providing clear, credible and balanced advice
• Collaborative: sharing knowledge and working effectively across different teams
• Commercially aware: understanding both business priorities and people‑related risk
• Supportive: helping managers approach difficult situations with confidence
• Resilient: remaining organised and effective when priorities change
• Improvement focused: always looking for ways to strengthen the HR service
• Professional: demonstrating integrity, discretion and sound judgement

What This Role Offers

Location and working pattern: Full time, hybrid role, mainly working from home but with occasional travel to RSK offices nationwide.

• Salary: £35,000 – £40,000 depending on experience
• Pension: 4% Employer Contribution
• Annual Leave: 31 days (including bank holidays) increasing with years of service and option to purchase additional annual leave.
• Flexible benefits: including health and wellbeing support, financial support, Cycle to Work scheme, EV car initiative and much more.
• Team: Be part of a supportive, knowledgeable and collaborative HR team.

About us: Our Environmental Consulting division brings together specialist teams across multiple business units, supporting clients with practical, expert advice across a wide range of environmental and consultancy services. The HR team plays an important role in helping our managers support their people well, make fair decisions and deliver consistent, professional HR support across the division.

Why this role?

This is an opportunity to take ownership of varied and meaningful HR work within a large, multi‑business division. You will have the scope to build strong relationships, influence how people matters are managed and contribute to improvements that benefit managers, employees and the wider HR team.

If you enjoy combining hands‑on employee relations work with coaching, collaboration and continuous improvement, we would be pleased to hear from you. This is a great opportunity to join a supportive HR team where you can build trusted relationships, influence good people decisions and help shape a stronger HR service across the division.

The Company

RSK is a global leader in sustainable solutions focusing on environmental, engineering, and technical services. Working together, we address societal challenges aligned with the United Nations Sustainable Development Goals, offering integrated solutions across sectors such as water, energy, food, infrastructure, cities, mining, and waste management.

We are committed to fostering an inclusive workplace that welcomes individuals from all backgrounds, experiences, and perspectives. We firmly believe that embracing and celebrating the diversity in our workforce makes us a stronger and more innovative company.

By providing workplace adjustments, we make it easier for people to confidently explore and pursue our career opportunities and recognise that flexibility is key to fostering a dynamic and thriving workplace. Many of our office‑based positions benefit from a flexible working arrangement, allowing our team members to achieve a balance between professional and personal commitments.

We actively encourage applications from candidates of all genders, races, ethnicities, ages, neurotypes, religions or beliefs, sexual orientations, and those with disabilities.

Since the beginning, our philosophy has remained the same: employ, develop and reward talented individuals. People are crucial to our company, and we recognise that our success hinges on our colleagues' growth. We're committed to preserving RSK's people‑first culture, promoting innovation, and fostering a supportive and caring environment for collaboration. At RSK, we want you to be part of our successes and help you reach your career aspirations. We take pride in offering employees fulfilling and challenging careers by promoting ongoing growth and empowering individuals to excel.

If you're passionate about making a difference, join us as we work together to build a brighter, more equitable, and sustainable future for all. Do you have what it takes?

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