Senior Office Manager

Banhams WA is an established and growing construction and services business operating across Western Australia. The company employs over 55 staff, including administrative personnel and trade workers, and continues to expand its operational footprint. The business maintains a structured administrative division comprising a team of at least 25 administrative staff supporting various business functions including operations, finance, HR, and project coordination.

Banhams WA is seeking an experienced and highly organised Office Manager to oversee and coordinate the day-to-day administrative operations of the business. This is a senior administrative role responsible for managing a large office team and ensuring the efficient functioning of internal processes, systems, and support services across the organisation. The role requires a proactive and capable professional with demonstrated experience in office management within a medium to large business environment, ideally within construction, trades, or project-based industries.

Key Responsibilities

• Oversee and manage the daily operations of the administrative office, ensuring efficiency and alignment with business objectives.
• Supervise, lead, and support a team of approximately 25 administrative staff across multiple functions/divisions.
• Develop, implement, and maintain office policies, procedures, and systems to improve operational efficiency.
• Coordinate administrative support for project teams and internal divisions, ensuring timely processing of documentation, reporting, and compliance requirements.
• Manage internal communications and workflow across departments including operations, finance, and HR.
• Oversee staff rostering, performance management, and training within the administrative team.
• Liaise with senior management to support strategic planning and operational improvements.
• Manage office budgets, procurement of office supplies, and vendor relationships.
• Ensure compliance with relevant workplace policies, safety standards, and regulatory requirements.
• Maintain accurate records, reporting systems, and document control processes.
• Assist with onboarding/offboarding processes and HR administration in collaboration with the HR function.
• Support continuous improvement initiatives and implement best practice administrative systems.

Skills and Experience Required

• Proven experience as an Office Manager or in a senior administrative leadership role.
• Experience managing teams within a medium to large business environment (20+ staff preferred).
• Strong leadership, organisational, and time management skills.
• Excellent communication and stakeholder management abilities.
• Demonstrated ability to implement and improve administrative systems and processes.
• Experience in construction, trades, or project-based environments is highly desirable.
• Proficiency in office management software and Microsoft Office Suite.
• Ability to manage multiple priorities and work in a fast-paced environment.

Qualifications

• Relevant qualifications in Business Administration, Management, or a related field (preferred but not mandatory where significant experience is demonstrated).

Applications should include a current resume and a brief cover letter outlining relevant experience.