Senior Administrator

MARS PARTNERSHIP PTY. LTD.; Melbourne; On-site; AUD 70,000 - 95,000; Full time

Benefits offered by this job

Annual remuneration reviews

Career development and progression

Ongoing learning and professional dev.

Flexible work approach

Team-building activities

Wellness initiatives

Job summary

MARS PARTNERSHIP PTY. LTD. is seeking a Senior Administrator to lead the administration function and support the smooth operation of a busy professional services firm in Melbourne. This hands‑on leadership role focuses on ownership, process improvement and mentoring across the team.

You will oversee day‑to‑day administration, work with directors and managers, and drive efficiency and excellent client and employee experiences while maintaining a professional workplace environment.

Qualifications

• Previous experience in a senior administration, office management or professional services support role.
• Public practice experience is highly regarded.
• Strong leadership capability and experience mentoring or guiding team members.
• Excellent communication and stakeholder management skills.
• Advanced organisational and time management skills.
• Strong Microsoft Office skills, including Word, Outlook and Excel.
• Experience with BGL CAS 360 (highly regarded).
• Sound judgement and the ability to manage confidential information.

Responsibilities

• Lead and support the administration function to ensure exceptional service delivery across the business.
• Create a welcoming and professional client experience.
• Oversee reception and front‑of‑house operations.
• Maintain office facilities, equipment and workplace presentation.
• Drive continuous improvement of administration processes, systems and procedures.
• Process basic ASIC company changes.
• Prepare and distribute client documentation through digital signing platforms.
• Manage administrative inboxes and ensure timely responses.
• Contribute to special projects and business initiatives as required.

Job description

Permanent

2mo ago , from MARS PARTNERSHIP PTY. LTD.

Are you an experienced administrator who thrives on creating structure, improving processes and keeping a busy professional services environment running at its best?

A highly respected Accounting Firm is seeking a proactive and capable Senior Administrator to lead the administration function and play a pivotal role in supporting the smooth operation of the business. This is far more than a traditional administration role - it's an opportunity to take ownership, influence how things are done, mentor others and contribute to the ongoing success of a growing and dynamic firm.

Working closely with senior leaders, you will be the go-to person for administration excellence, ensuring exceptional service delivery, operational efficiency and a seamless experience for both clients and employees.

The Opportunity

As the Senior Administrator, you will oversee the day-to-day administration function while supporting key business operations across the firm. You'll work collaboratively with Directors, Managers and internal stakeholders to ensure the business runs efficiently and professionally.

This is a hands-on leadership role suited to someone who enjoys taking initiative, solving problems, improving processes and building strong relationships across all levels of an organisation.

Key Responsibilities

• Lead and support the administration function to ensure exceptional service delivery across the business
• Create a welcoming and professional client experience
• Oversee reception and front-of-house operations
• Maintain office facilities, equipment and workplace presentation
• Drive continuous improvement of administration processes, systems and procedures
• Process basic ASIC company changes
• Prepare and distribute client documentation through digital signing platforms
• Manage administrative inboxes and ensure timely responses
• Contribute to special projects and business initiatives as required

About You

You are an experienced administration professional who enjoys taking ownership and leading by example. You are highly organized, solutions-focused and confident working across multiple priorities in a fast-paced professional environment.

You will bring

• Previous experience in a senior administration, office management or professional services support role
• Public practice experience
• Strong leadership capability and experience mentoring or guiding team members
• Excellent communication and stakeholder management skills
• Exceptional attention to detail and commitment to quality
• Advanced organisational and time management skills
• Strong Microsoft Office skills, including Word, Outlook and Excel
• Experience with BGL CAS 360 (highly regarded)
• Sound judgement and the ability to manage confidential information
• A proactive mindset with strong problem-solving abilities
• A genuine passion for delivering outstanding internal and external customer service

What's On Offer

This organisation genuinely invests in its people and provides an environment where employees can grow, develop and enjoy coming to work.

Benefits include

• Annual remuneration reviews
• Career development and progression opportunities
• Ongoing learning and professional development support
• Collaborative and supportive leadership team
• Open and transparent feedback culture
• Flexible and supportive approach to work-life balance
• Social club events and team-building activities
• Employee Assistance Program
• Wellness initiatives including fresh fruit, quality coffee, flu vaccinations and monthly massages
• Employee referral bonus program
• Certified Great Place to Work employer

If you're looking for a role where you can make a genuine impact, take ownership of key business functions and join a professional, people-focused organisation, we'd love to hear from you.

At Mars, we are passionate about providing equal employment opportunities and embracing diversity to the benefit of all.