Office Manager

Job Description

We're looking for a highly organised and proactive Office Manager and People Administrator to support the day-to-day operations of Comms
365. This is a varied, responsible role combining HR administration, office management, and executive support — acting as a central point of coordination for the business, ensuring the smooth running of the office, supporting our people processes, and assisting the executive team with organisational and administrative needs.

This role requires excellent attention to detail, strong communication skills, and the ability to juggle multiple priorities in a fast-paced environment.

HR Administration

• Maintain accurate employee records and HR documentation
• Support recruitment — job postings, interview coordination, onboarding
• Manage new starter and leaver processes
• Maintain HR systems and employee files in line with compliance requirements
• Assist with performance review cycles and HR reporting
• Coordinate training, certifications, and professional development records
• Monitor staff leave, absence, and HR policies
• Collaborate with Group HR to help maximise people performance
• Support payroll administration by liaising with finance

Office Management

• Ensure the efficient day-to-day running of the Milton Keynes office
• Manage office suppliers, equipment, and facilities
• Coordinate office services including IT equipment, security access, and workspace setup
• Organise internal meetings, company events, and staff briefings
• Maintain office policies, procedures, and documentation
• Manage incoming correspondence, calls, and visitors
• Oversee office budgets and general administrative expenses where required
• Manage diaries and calendars for members of the executive team
• Schedule and coordinate meetings
• Prepare documents, presentations, and reports
• Organise travel and accommodation
• Record meeting notes and track key actions
• Support board meetings and executive briefings
• Assist with confidential correspondence and sensitive documentation

• Previous experience in HR administration, office management, or an executive assistant role
• Excellent organisational and time management skills
• Strong written and verbal communication
• Ability to handle confidential information with discretion
• Proficiency with Microsoft Office (Outlook, Word, Excel, PowerPoint)
• Ability to prioritise and manage multiple tasks simultaneously
• Experience in an SME or technology/telecommunications environment
• Familiarity with HR systems and payroll coordination
• Experience supporting senior executives or leadership teams
• Knowledge of UK employment practices and HR compliance
• Strong customer service skills, with a passion for exceeding expectations
• Track record of setting and delivering KPIs and SLAs to a high standard
• Professional, approachable, and highly dependable
• Strong attention to detail
• Proactive and solutions-oriented
• Comfortable working independently, taking initiative, and coordinating other teams and individuals
• Able to build positive relationships across the organisation

• A varied and responsible role in a growing technology company
• The opportunity to work closely with senior leadership
• A collaborative and supportive working environment
• Competitive salary and benefits package