Senior Administrator (Support Services)

Security Strong Holdings Group; Gloucester; On-site; GBP 30,000 - 42,000; Full time

Benefits offered by this job

Competitive salary

Benefits package

Career progression

Training funding

Flexible working

Inclusive culture

Experienced specialists

Job summary

Security Strong Holdings Group is seeking a Senior Administrator to join the Support Services Team, based near Gloucester. The role covers coordinating across multiple workstreams and supporting the GSOC administration, travel, and diary management.

You will work with colleagues and clients to ensure successful outcomes, with travel across the country for meetings and events as needed. This is a full-time office-based position with a proactive, confidential approach valued.

Qualifications

• Extensive experience in a senior administration, office management, or business support role.
• Experience coordinating executive diaries, meetings, travel arrangements, and office operations.
• Strong document management, record keeping, and administrative coordination skills.

Responsibilities

• Support GSOC administration, including rosters, schedules, and documentation.
• Manage office enquiries, inboxes, calls, visitors, and daily operations.
• Coordinate meetings, diaries, minutes, action logs, and travel arrangements.
• Maintain records, document control, trackers, and employee onboarding.
• Support HSE activities and improve administrative processes.

Skills

Organisational skills

Attention to detail

Communication skills

Multitasking

Customer service

Tools

Microsoft 365

Job description

Salary Range: Competitive/Negotiable – dependent on skills/experience + Bonus and benefits package

Location: Office Based – Gloucester area

Hours: Monday to Friday – 08.30 to 17.30

About Security Strongholdings Group

SecurityStrongholdingsprovides Support Services to our wider group, which consists of two trading companies.

As a group we deliver trusted advice across a broad range of security environments, partnering with organisations to manage risk, strengthen resilience, and make informed security decisions.

We are a values-led organisation committed to Respect, Integrity, Collaboration, and Excellence, and we are proud to support a diverse and inclusive workplace.

Our teams work closely with clients to deliver value for money, thorough, high quality advisory services from strategy and design through to delivery and sign off.

Role Overview

This excellent opportunity is for a skilled professional to join our established team as a fulltime Senior Administrator specifically dedicated to one of our trading companies. The role sits within the Support Services Team, reporting to the Support Services Manager, working across multiple workstreams.

You will play a key role in the team, collaborating with both colleagues and clients to ensure successful outcomes. The position is based in our offices near Gloucester with some travel required to attend meetings and to support business events across the country.

Your Qualifications & Skills

Administrative Experience

• Extensive experience in a senior administration, office management, or business support role.
• Experience coordinating executive diaries, meetings, travel arrangements, and office operations.
• Strong document management, record keeping, and administrative coordination skills.
• Experience supporting multiple workstreams while managing competing priorities.
• Previous experience within professional services, consultancy, or security-related environments is advantageous .
• Eligibility to obtain BPSS and BS:7858 security screening .

Business Support & Office Operations

• Support GSOC administration, including rosters, schedules, and documentation.
• Manage office enquiries, inboxes, calls, visitors, and daily operations.
• Coordinate meetings, diaries, minutes, action logs, and travel arrangements.
• Maintain records, document control, trackers, and employee onboarding.
• Support HSE activities and improve administrative processes.

Professional Skills

• Excellent organisational skills with exceptional attention to detail.
• Strong communication skills with the ability to engage confidently at all levels.
• Ability to multitask, prioritise workloads, and consistently meet deadlines in a fast-paced environment.
• Proficient in Microsoft 365 applications including Word, Excel, Outlook, Teams, and PowerPoint.
• A proactive approach to identifying process improvements and administrative efficiencies, including AI-assisted solutions.
• Strong customer service, relationship management, and problem-solving skills.

Ways of Working

• Work proactively and independently while effectively managing multiple priorities across different programmes .
• Build trusted relationships with colleagues, clients, suppliers, and key stakeholders.
• Maintain high standards of accuracy, professionalism, confidentiality, and customer service.
• Adapt positively to changing priorities within a fast-paced and agile business environment.
• Contribute positively to a collaborative, supportive, and high-performing team culture.

What We Offer

We support our people to learn, grow and thrive both personally and professionally.

Competitive salary & benefits

Learning & career progression

Funding for memberships, training & accreditations

Flexible working arrangements

Inclusive & respectful culture

Work with experienced specialists

Meaningful, high-quality security outcomes

SecurityStrongholdingsGroup is committed to building a diverse and inclusive workplace where everyone is treated with airness, dignity and respect. We welcome applications from people of all backgrounds and experiences and we encourage candidates to apply even if they do not meet every single criterion listed, provided they candemonstratethe skills and potential to succeed in the role.

Application Process

Successful candidates willbe requiredtodemonstratetheir right to work in the UK and to pass BPSS and BS:7858 security screening, sponsored by the company, before employmentcommences.Additionalhigher security screening may be necessary for specific client requirements.

Join our Team

We are always on the lookout for people who are passionate about security and working together.