Atomic is delighted to partner with a reputable firm in Finchley Central looking for a Senior Administrator. The firm is known for delivering high-quality audit, tax, accounting, and advisory services, working with a diverse portfolio of ambitious owner-managed businesses, SMEs, and entrepreneurial clients across a range of sectors.

As a Senior Administrator you will play a pivotal role in ensuring the smooth, efficient and professional running of administrative operations within the practice. Acting as a central coordination point across service lines, the role supports fee-earning teams, enhances client experience, and drives consistency in administrative standards.

Responsibilities

• Oversee day-to-day administrative operations across the office or designated hub.
• Act as a senior point of contact for administrative queries and escalations.
• Implement and maintain consistent administrative processes, systems and standards.
• Support continuous improvement initiatives to enhance efficiency and service delivery.
• Manage the reception area which will include greeting clients.
• Managing and developing team members, which includes formal and informal on the job training. Conducting performance reviews and the setting of clear objectives.
• Allocate work effectively to ensure timely and accurate completion of tasks.
• Manage client communications, ensuring responsiveness and attention to detail.
• Coordinate meetings, events and client interactions to a high standard.
• Support fee earners with administrative tasks including document preparation and formatting, engagement letters and client onboarding documentation, filing, record keeping and compliance documentation.
• Assist with billing processes, timesheet management and workflow tracking.
• Maintain and optimise use of practice management systems and CRM platforms
• Oversee office logistics including supplies, equipment and workspace management.
• Support health & safety compliance and office policies.
• The post-holder will be expected to act reliably, responsibly, and flexibly, undertaking any additional tasks reasonably required that fall within the scope and level of the role

Requirements:

• Exceptional organisational and time management skills.
• Strong written and verbal communication, with high attention to detail.
• Advanced proficiency in Microsoft Office (Word, Excel, Outlook, PowerPoint).
• Ability to manage multiple priorities and work under pressure.
• Strong sense of ownership and pride in delivering high-quality work.
• Demonstrable experience in a senior administrative role within a professional services environment.
• Experience of supporting multiple stakeholders, including senior professionals or partners.
• Proven ability to coordinate workloads and support junior team members.
• Experience with practice management systems or CRM platforms.
• Familiarity with regulatory or compliance-driven environments.
• Educated to A-level standard or equivalent (degree desirable but not essential).
• Professional administrative or business qualification (desirable)