HR Advisor

Asta; Greater London; Hybrid; GBP 32,000 - 42,000; Full time

Benefits offered by this job

35-hour week with hybrid working

Generous holiday allowance

Private medical insurance with GP

Job summary

Asta is seeking an HR Advisor in London to provide generalist HR and payroll support to clients. You will oversee the employee lifecycle, contribute to policy updates, and support HR Administration and Payroll teams.

This 12-month fixed-term contract is based in London, offering hybrid working and a comprehensive benefits package. You will work with the HR Business Partner and Head of Client HR to deliver tailored HR support.

Qualifications

• Part CIPD qualified or equivalent, with generalist HR experience.
• Strong knowledge of employment legislation and HR processes.
• Strong organisational and multitasking abilities.
• Experience in payroll and benefits administration.
• Experience in client-facing/consulting is advantageous.
• Proficient in HRIS and reporting tools, MS Office and SharePoint.

Responsibilities

• Be the main HR contact for clients, manage employee lifecycle, payroll and benefits.
• Coach and supervise HR Admin/HR Assistant; weekly progress reviews.
• Collaborate with Payroll & Benefits Manager for payroll processing.
• Oversee onboarding/offboarding and related documentation.
• Update HR policies, templates, and employment terms.
• Support salary and bonus review processes.
• Handle Employee Relations matters per client processes.
• Conduct investigations, redundancy consultations, exit interviews.
• Audit data and provide reports to clients; assist with ad-hoc projects.

Skills

HR generalist

Employment law

Organisational skills

Payroll knowledge

Client-facing

Education

Part CIPD qualified or equivalent

Tools

HRIS systems

SharePoint

MS Office

Payroll software

Job description

HR Advisor

Application Deadline: 2 November 2026

Department: HR

Employment Type: Fixed Term - Full Time

Location: London UK

Description

The HR Generalist at Asta will provide generalist human resources and payroll support to Asta’s clients, including all aspects of the employee lifecycle, payroll & benefit administration, carrying out various HR tasks and projects, and oversight of the HR Administrator and HR Assistant.

They will support the HR Business Partner and Head of Client HR to develop trusted and effective relationships with client stakeholders, understanding each client’s business and adapting support accordingly.

This is a 12-month fixed-term contract opportunity based in London.

Key Responsibilities

• Key HR point of contact for your clients. Providing generalist HR service, coach, advise and support in all aspects of the employee lifecycle, including onboarding and offboarding, employee relations, disciplinary and grievance, performance and absence management, compensation and benefits, policies, procedures and payroll services.
• Coach, train and support the HR Administrator and HR Assistant taking ownership of the completion of tasks undertaken by these roles. Conduct weekly catch ups to review progress and discuss upcoming tasks / projects to prioritise in line with the HR Business Partner and Head of Client HR.
• Collaborate with the Payroll & Benefits Manager to ensure accurate and timely end to end monthly payroll processing for your clients, pension uploads and annual processes, i.e. benefit renewals.
• Through oversight of the HR Administrator and HR Assistant, ensuring all new starter and leaver processes including; background checks, probations, changes to T&C’s, HRIS updates, benefit adjustments and medical underwriting, resignation acknowledgements and leaver letters are initiated on time. Ensuring trackers are kept up to date and responding to queries through client inboxes within SLA’s, helping where volume and complexity requires.
• To review all client offers letters, contracts, start date confirmations, probationary letters, changes to T&C letters and any other HR confirmation letters as appropriate, sending via Nitro-Sign where applicable.
• Deliver effective HR inductions for new starters and return to work inductions for employees on long term absence or family friendly leave. Continue to review these processes to ensure they meet the needs of the company, clients, legislation and new employees.
• To keep up to date Benefit One Pagers and Employment Terms Sheets’. Assist in updating HR policies and procedures in line with employment legislation, as well as reviewing template letters/documents, forwarding drafts to the HR Business Partner for review.
• Assist the Payroll & Benefits Manager with employee benefit programs for your clients, including enrolment, all employee communications and assisting with any related queries. Co-ordinate the annual salary and bonus review process, including preparing of review spreadsheet, timeline and template letters where directed by the HR Business Partner and Head of Client HR.
• Where directed by the HR Business Partner and Head of Client HR, manage Employee Relations matters such as long-term absence, occupational health referrals, family friendly leave and flexible working requests, performance management and improvement plans for all client groups, ensuring compliance with relevant client processes and procedures.
• Conducting and/or taking notes as required at formal investigation meetings, hearings and
• Redundancy consultations, ensuring fair and consistent application of policies. Conducting exit interviews, analysing feedback to identify any patterns or common themes that may require attention by the HR BP
• Conducting regular audits and providing data as requested by clients, via reports and statistics pulled from HRIS’s, SharePoint and client dashboards. Supporting with surveys and Participate in ad-hoc project work and initiatives with a focus on continuous improvement and Automation where the client allows.

Skills, Knowledge & Expertise

• Part CIPD qualified or equivalent, with previous generalist experience.
• Strong understanding of employment legislation and the practical application of HR processes and Procedures.
• Strong organisational and task management skills, with ability to manage multiple clients and tasks simultaneously.
• Experience in payroll and benefit administration.
• Experience is a client-facing / consulting role, advantageous.
• Proficient in HRIS systems and reporting tools, MS Office and SharePoint.

Job Benefits

At Asta, you’ll enjoy a market-leading benefits package that puts your wellbeing, career development and financial future first. We combine flexible working, strong family-friendly policies and exceptional rewards to create a supportive, inclusive and high-performing workplace.

Our benefits include:

Work-life balance you can rely on

• 35-hour working week with hybrid and flexible working
• Generous holiday allowance that increases with service

Your health & wellbeing covered

• Private medical insurance with virtual GP access
• Annual health screening, dental cover and eye care
• Subsidised gym or sports club membership

Support for you and your family

• Enhanced maternity, paternity, adoption and shared parental pay

Rewarding your contribution

• Highly competitive pension with up to 13% employer contribution
• Life assurance and income protection
• Discretionary annual bonus scheme
• Interest-free season ticket loan and salary sacrifice schemes