We are proud to become a new Australian Department of Defence partner, offering career opportunities to support the delivery of Property and Asset Services across South Australia and the Northern Territory.
We are opportunities available for qualified Plumbers to join our Defence division and support with this contract (up to 10 years). These are permanent full-time positions based at any of the key Defence bases across the Northern Territory including RAAF Darwin, Larrakeyah Precinct, Robertson Barracks and RAAF Tindal. Majority of works are preventative maintenance, and we can offer more work-life balance than the big employers in the Territory.
These roles are to start from February 2026
About us
Service Stream is an equal opportunity ASX-listed business that develops and operates Australia's essential services networks across telecommunications, utilities, transport, defence, and social infrastructure industries - we keep communities connected.
Your next role comes with these perks:
* Career development – we offer growth opportunities and support internal mobility. You will have access to skill enhancement through our online learning system and onsite training.
* Access - discounts for hundreds of businesses such as Woolworths, Air BNB, The Iconic, JB HI-FI, Dan Murphys, Bupa Health Care, and Specsavers. We also offer access to novated leasing and a share matching program.
* Paid leave - parental, cultural, community service, defence, study, corporate volunteering and purchased leave available.
* Culture – we are dedicated to fostering a workplace environment that values diversity and inclusion, and meaningful recognition. You will play a key role in building the culture of our new team.
About the role
You will ensure the effective and efficient repair and maintenance of plumbing fixtures, fittings, pipework systems, and plumbing-related infrastructure across all Defence buildings, structures, and infrastructure.
Your key responsibilities will include:
* Inspecting, diagnosing, and repairing plumbing issues in Defence buildings and infrastructure.
* Installing, maintaining, and repairing plumbing fixtures such as sinks, toilets, and water heaters.
* Ensuring all plumbing work complies with current legislation and regulatory standards.
* Conducting routine maintenance checks on plumbing systems and pipework.
* Collaborating with other maintenance staff and contractors to complete repairs and installations.
* Maintaining accurate records of work performed, including materials used and time spent.
* Responding to emergency plumbing situations promptly and efficiently.
* Advising on the selection of materials and equipment for plumbing repairs and installations.
* Providing technical support and guidance to junior staff and apprentices.
* Identifying areas for process improvement and work collaboratively with teams to implement best practices.
About you
Our ideal candidate will have:
* Experience in plumbing maintenance and repair work, ideally within large infrastructure environments however this is not essential.
* Proven ability to read and interpret blueprints and technical drawings.
* Minimum of Certificate III in Plumbing or equivalent qualification, and valid Plumbing & Drainage Occupational Licence.
* Licence endorsements for back-flow prevention, heat pump water systems, on-site sewerage facility maintenance, solar water systems, and thermostatic mixing valves.
You must be an Australian Citizen and able to obtain and maintain a Defence Security Clearance.
How to apply
Please submit your interest with the apply button. Applications will be reviewed before the closing date, so please don't hesitate to apply
We celebrate diversity at Service Stream and welcome applications from people who identify as Aboriginal and/or Torres Strait Islander, people with a disability or neurodivergence, and those from LGBTIQA+, Veteran or other diverse groups. Applications are unable to be accepted via email. If you require any reasonable adjustments to the recruitment process, please email