Senior Office Administrator

Greensquares have an exciting opportunity for a Senior Office Administrator to join their team.

Location: Merthyr Tydfil, CF48 1YL
Salary: £25,000 to £28,000 per annum depending on experience
Job Type: Full-time, Permanent
Working Hours: Monday – Friday, 9am – 5pm (37.5 hours per week)

About Us:

Greensquares is a leading nationwide supplier specialising in the design, supply, and installation of low-maintenance products for outdoor living. Our brands include SunSpaces contemporary verandas and garden rooms, DeckPlus composite decking, CladPlus cladding, FencePlus fencing, and PrimaPorcelain porcelain paving.

Senior Office Administrator – The Role:

We are looking for a proactive and detail-oriented Senior Office Administrator to join our growing team. This is a fantastic opportunity for an experienced administrator to play a key role in supporting the day-to-day running of our office operations, whilst also supporting senior leadership, customers, and internal teams.

In this varied and hands-on role, you’ll be at the heart of our office, coordinating admin processes, assisting with accounts and HR tasks, and ensuring a smooth, professional experience for our clients and colleagues.

Senior Office Administrator – Key Responsibilities:

- Manage schedules, coordinate meetings, handle correspondence, and maintain office records

- Oversee ordering of supplies and ensure office equipment is operational

- Track expenses and assist with invoice management

- Be the first point of contact for internal and external enquiries

- Support day-to-day office operations and liaise with IT as needed

- Develop and implement office policies and procedures, ensuring compliance with company guidelines

- Provide administrative support to senior leadership and the accounts team

- Manage service bookings, update internal systems, and handle confidential documentation

- Respond to customer enquiries over the phone and via email

- Input customer information into internal systems

- General administrative duties including scanning, filing, and document management

Senior Office Administrator – You:

- At least 5 years’ experience in an administrative or operational support role

- Excellent telephone manner and confident communicator

- Highly organised with a keen eye for detail

- Proficient in Microsoft Office (Word, Excel, Outlook); experience with IRIS is a bonus

- Adaptable, willing to learn, and able to manage multiple priorities

- Experience in professional service environments such as legal, accountancy, or consultancy is desirable

- Friendly, team-focused attitude with a proactive mindset

Senior Office Administrator – Benefits:

- Company pension scheme

- 25 days annual leave (+ 1 day Birthday leave)

- Career progression opportunities

- Free on-site parking

Application Process:

If you’re looking to join a supportive and ambitious team where you can make a real impact, we’d love to hear from you.

To submit your CV for this exciting Senior Office Administrator opportunity, please click ‘Apply’ now!