OFFICE & BUSINESS MANAGER – PLUMBING & CONSTRUCTION
Take genuine ownership of the office and commercial operations of an established and growing Sydney plumbing business.
ABOUT SITE PLUMBING
Site Plumbing is an established Sydney plumbing company delivering commercial construction, maintenance and service work across the hospitality, commercial, strata and residential sectors.
We have built a strong team and client base and are now looking for an experienced Office & Business Manager to take ownership of our day‐to‐day office, administrative and off site commercial operations.
This is not a junior administration position.
It is a senior, hands‐on role for someone who can create structure, improve systems, keep work moving and ensure important tasks are followed through to completion.
THE OPPORTUNITY
Working directly with the Director and Operations Manager, you will take responsibility for the office and the administrative workflow surrounding our plumbing projects from the initial enquiry and job setup through to invoicing, payment and final closeout.
Our Operations Manager will continue to oversee field operations, labour allocation, technical delivery, safety and workmanship.
You will own the office, commercial administration, internal systems, reporting, people administration, customer communication and marketing coordination that support those operations.
The purpose of the role is simple: make sure the business runs smoothly, information is accurate, commitments are followed up and the Director and Operations Manager are not continually pulled back into routine office matters.
KEY RESPONSIBILITIES
Office and business operations
Manage the daily operation of the office and oversee administrative support
Take ownership of incoming enquiries, calls, emails and office follow‐up
Ensure jobs are correctly created, documented and ready before work commences
Support scheduling administration, customer confirmations and site communication
Coordinate communication between clients, builders, suppliers, office staff and field staff
Maintain visibility over work in progress, upcoming deadlines and outstanding actions
Ensure completed jobs are properly closed out, documented and invoiced
Develop and maintain procedures, checklists, templates and workflows
Identify recurring problems and implement practical improvements
Commercial and financial administration
Prepare and review invoices for quoted, maintenance and additional works
Check labour, materials, subcontractor costs and completed scopes before invoicing
Track variations, purchase orders, progress claims and missing information
Maintain clear visibility over completed but unbilled work
Follow up overdue accounts and payment commitments
Work closely with our outsourced bookkeeping and payroll support
Assist with cash‐flow visibility, job reporting and management dashboards
Escalate commercial risks or exceptions to the Director when required
People and compliance administration
Coordinate timesheets, leave applications and payroll information
Maintain employee records, licences,



training and compliance registers
Support recruitment, onboarding, probation reviews and staff documentation
Help establish clear responsibilities and accountability across the office
Coordinate with external HR, bookkeeping and professional advisers where required
Marketing and business profile
Own and maintain the company's social media and marketing calendar
Coordinate the collection of project photographs, client stories and completed‐work updates
Prepare and schedule regular social media content
Manage customer review requests and responses
Coordinate website updates, capability documents and company profiles
Work with external designers or marketing specialists when required
Ensure public content follows the company's brand and approval process
Leadership and reporting
Provide the Director with clear and concise reporting on business performance, workflow and risks
Run regular office and workflow meetings
Maintain action registers and follow through on agreed decisions
Work closely with the Operations Manager without taking over technical or field responsibilities
Raise problems early and bring recommended solutions
Create accountability without unnecessary bureaucracy
ABOUT YOU
You may currently be working as an Office Manager, Business Manager, Practice Manager, Senior Project Administrator or Operations Coordinator.
Experience within plumbing, construction, trade services, engineering, facilities management or another project‐based business will be highly regarded.
To succeed in this role, you will need:
Demonstrated experience managing the office or business operations of a busy company
Strong commercial awareness and confidence working with invoices, costs, work in progress and debtors
Experience improving systems, processes and accountability
Excellent written and verbal communication skills.
This is a must have!
The confidence to work directly with business owners, managers, clients, suppliers and tradespeople
Solid organisational skills and attention to detail
The ability to prioritise, make decisions and close loops without constant supervision
A calm and practical approach when priorities change
The confidence to respectfully challenge management when something is being missed
Experience with Xero and job‐management software
ServiceM8 experience would be highly regarded
Experience coordinating social media and marketing activities
This role is first and foremost about running an organised, efficient and accountable office.
You do not need to be a plumber or project manager, but you must be comfortable working in a fast paced trade business and taking complete ownership of the back office operations.




We are looking for someone who is proactive, highly organised and relentless about follow through.
Someone who will drive the administration, close loops, identify gaps and introduce better systems where needed to support the overall success of the business.
WHAT SUCCESS LOOKS LIKE
Within your first three to six months:
The office has a clear and consistent daily operating rhythm
Jobs are being created, tracked, closed and invoiced correctly
Variations, missing purchase orders and unbilled work are visible and followed up
Debtors and payment commitments are actively managed
Staff records, licences and compliance requirements are current
Management reporting is accurate and useful
Social media, customer reviews and marketing activities are being managed consistently
The Director and Operations Manager are no longer the default owners of routine office matters
WHAT WE OFFER
A genuine management role with meaningful responsibility
A salary of $90,000–$100,000 plus superannuation
Direct access to the business owner and senior decision‐makers
The authority to improve systems and shape how the office operates
A varied role across business operations, commercial administration, people and marketing
The opportunity to grow with an established Sydney plumbing business
A supportive team that values practical solutions and direct communication
OFFICE & BUSINESS MANAGER – PLUMBING & CONSTRUCTION
Marrickville, Sydney NSWFull-time$90,000–$100,000 plus superannuation
Take genuine ownership of the office and commercial operations of an established and growing Sydney plumbing business.
ABOUT SITE PLUMBING
Site Plumbing is an established Sydney plumbing company delivering commercial construction, maintenance and service work across the hospitality, commercial, strata and residential sectors.
We have built a strong team and client base and are now looking for an experienced Office & Business Manager to take ownership of our day‐to‐day office, administrative and off site commercial operations.
This is not a junior administration position.
It is a senior, hands‐on role for someone who can create structure, improve systems, keep work moving and ensure important tasks are followed through to completion.
THE OPPORTUNITY
Working directly with the Director and Operations Manager, you will take responsibility for the office and the administrative workflow surrounding our plumbing projects from the initial enquiry and job setup through to invoicing, payment and final closeout.
Our Operations Manager will continue to oversee field operations, labour allocation, technical delivery, safety and workmanship.
You will own the office, commercial administration, internal systems, reporting, people administration, customer communication and marketing coordination that support those operations.
The purpose of the role is simple: make sure the business runs smoothly, information is accurate, commitments are followed up and the Director and Operations Manager are not continually pulled back into routine office matters.
#J-*****-Ljbffr

📌 Office And Business Manager (New South Wales)
🏢 Site Plumbing
📍 New South Wales