Senior administrator jobs in London

Based at our Head Office in Leatherhead, Surrey, KT22 0BX

Status:       Permanent 

Salary:       Band 5, £31,049 - £33,487, per annum, pro rata, dependent on
                     experience, plus 5% Outer London Fringe Allowance 

Hours:       Part-time, 20 hours per week, hybrid working available 

________________________________________________________________________________

About Us:

Combat Stress is the UK’s leading mental health charity for veterans. For over a century, we’ve been helping former service personnel deal with issues like post-traumatic stress disorder (PTSD) resulting from military service. We have teams across the UK providing online and in-person treatment and support, depending on the individual’s needs and circumstances of those who need us.

About the role:

Join our HR team and play a key role in supporting people across the organisation.

In this position, you’ll provide a high-quality, efficient administrative service to the wider HR function, ensuring every stage of the employee lifecycle runs smoothly - from onboarding through to ongoing support. You’ll take ownership of maintaining accurate records and ensuring full compliance with essential checks, including DBS, PVG, Access NI, and professional registrations.

Working closely with the Payroll team, you’ll also help ensure payroll processes are completed accurately and on time, contributing to a seamless experience for all employees.

This is a great opportunity for someone who is detail-oriented, organised, and passionate about delivering excellent HR support within a purpose-driven charity environment.

This role is subject to a DBS check.

What we offer:

You will work within a reputable charity that is constantly evolving to meet the needs of our veterans, that has a fantastic cause and a committed follower base.

Benefits:

•          27 days annual leave, with an increase to 30 days annual leave upon
           5 years of continuous service, plus bank holidays and an additional
           increase to 33 days annual leave upon 10 years continuous service,
           plus bank holidays. 

•       Competitive stakeholder pension scheme - contributions matched up to
           11% of salary

•       Discount shopping vouchers

•       Access to the Employee Assistance Programme

•          Flexible working

•          Access to Blue Light Card scheme

•          Death in Service Scheme

Interim Senior Admin Officer (Part-time, Temporary) £15–£18 per hour | 20 hours per week | Remote or Newcastle upon Tyne

Are you an experienced senior administrator or operations professional who wants to use your skills to support a meaningful cause?

My client is a Black-led charity with a long track record of supporting Black and racialised women and children affected by domestic abuse and Violence Against Women and Girls. They are entering a busy period of growth and transition and are now seeking an Interim Senior Admin Officer to step in quickly, stabilise systems and support the organisation through change.

The role As Interim Senior Admin Officer, you will play a central role in ensuring the organisation runs smoothly, safely and compliantly. You will take stock of existing systems, put clear processes in place and provide practical support to staff and trustees during a period of onboarding and recruitment.

You will also work closely with the Admin Officer and Receptionist, offering day-to-day guidance, support and coaching to help them deliver to a high standard.
Key responsibilities include

• Reviewing and improving operational systems across administration, record-keeping, filing, archiving and IT
• Leading supplier and contract management, including reviewing value for money and setting up clear contract processes
• Supporting recruitment activity and onboarding of new staff and trustees, including inductions, equipment and access
• Developing, reviewing and updating organisational and HR policies in line with UK employment law and best practice
• Advising on employment matters such as contracts, grievance and disciplinary procedures and staff entitlements
• Ensuring strong governance and compliance, including Charity Commission and Companies House requirements
• Overseeing GDPR compliance, health and safety and statutory obligations
• Supporting facilities management, including getting the reception area fully operational
• Providing hands-on support and coaching to the admin team
• Producing a clear written recommendations report by the three-month point to support continuity

About you You will bring:

• Strong experience in senior administration, operations or office management, ideally within the charity or third sector
• Experience or knowledge of organisational and HR policies
• Knowledge of UK employment rights and employment law
• Hands-on understanding of charity governance and regulatory compliance
• Working knowledge of GDPR and health and safety
• Experience managing suppliers and contracts
• Confidence supporting recruitment, onboarding and HR processes
• A supportive, coaching-style approach to working with others
• The ability to prioritise, work at pace and get things done
• Strong cultural competence and commitment to equality, diversity and inclusion

Key details

• Role: Interim Senior Admin Officer
• Organisation type: Black-led charity supporting Black and racialised women and children affected by domestic abuse and VAWG
• Rate: £15–£18 per hour, depending on experience
• Hours: 20 hours per week, Monday to Friday
• Location: Newcastle upon Tyne (NE4), with on-site or remote working
• Contract type: Temporary
• Duration: 6 months

Eligibility: This role is open to women only under the Equality Act 2010, Schedule 9, Part 1, due to the nature of the services provided.

As a Black-led organisation, my client strongly encourages applications from Black women and women from racially minoritised backgrounds, who are under-represented in senior operational roles.
Why apply? This is a rare opportunity to step into a trusted interim role within a values-driven organisation doing vital, life-changing work. You will have the space to make meaningful improvements, support people to succeed and help shape a stronger future for the organisation.

We want you to have every opportunity to demonstrate your skills, ability and potential; please contact us if you require any assistance or adjustment so that we can help with making the application process work for you.

We want you to have every opportunity to demonstrate your skills, ability and potential; please contact us if you require any assistance or adjustment so that we can help with making the application process work for you.