Fixed Plant Boilermaker

Vault Minerals

Posted on:  4th Nov 2026

A great time to join our Maintenance team as the business experiences a new growth.

Vault Minerals Limited is a leading intermediate gold producer listed on the ASX, with a diversified portfolio of operating assets across Western Australia and Canada. Formerly known as Red 5 Limited, the company rebranded to Vault Minerals in September 2024 to reflect its scale, strength, and growth ambitions.

King of the Hills (KOTH) is the flagship operation of Vault Minerals Limited and one of the largest gold mines in Australia. Undergoing significant expansion, KOTH is nearing completion of a 7.5 million tonne per annum (Mtpa) processing plant (previously 5.2Mtpa), providing a solid platform for long-term production growth. This dynamic operation combines open-pit and underground mining, with exciting exploration activities driving the future.  KOTH is located approximately 900 km northeast of Perth and 25 km north of Leonora, within the Goldfields Region of Western Australia. 

What We Offer 

  • This position will be offered on an 15:13 FIFO roster from Perth
  • An hour flight time from Perth to Leonora and Virgin Velocity Frequent flyer points
  • Competitive Salary on a fortnightly pay cycle
  • Referral program allowing you to earn up to $6,000 for referring new employees
  • Career development opportunities and great company culture

Reporting to the Maintenance Supervisor, the Boilermaker will be responsible for carrying out preventative, corrective and breakdown maintenance to mechanical equipment in the processing plant, borefields and site infrastructure, along with onsite fabrication of chutes, structural components and small projects.

Key responsibilities of this role will include:

  • Developing and working within site safety structures.
  • Preparation of JHA’s and Take 5’s prior to commencing tasks.
  • Participating in scheduled reviews of current SOP’s.
  • Regular maintenance of the crushing and milling circuit equipment.
  • Chute inspection PMs.
  • Provide suggestions for problem-solving of high wear areas found in chutes.
  • Fabrication of general plant components to a high level of skill.
  • Ability to read and understand drawings.
  • Understanding of relevant Australian Standards.
  • Crane Driving and Rigging operations.
  • Conducting regular scheduled PM tasks and completing detailed fault descriptions for corrective maintenance tasks to be developed.

About You 

  • Mechanical Trade Qualification (Boilermaker)
  • 3+ years post apprenticeship mine site experience would be desirable
  • Experience in using Pronto maintenance systems 
  • Boilermaking experience in a mineral processing plant, including extensive hands-on experience with fabrication from drawings, MIG, TIG and ARC welding repairs, manufacturing of wear plates, maintenance on jaw and cone crusher circuits and equipment
  • A proven commitment to safety
  • CN Franna crane ticket would be desirable
  • Confined space, Work at heights, EWP, Forklift & Dogging tickets are desirable
  • Hold a current C Class driver’s license and Senior First Aid Certificate
  • Working knowledge of the Work Health and Safety (WHS) Act 2020 the Work Health and Safety (Mines) Regulations 2022.
  • Holds a High Risk Work (HRW) Licence (LF, EWP & DG). 
  • Current certifications in Working at Heights and Confined Space Entry.
  • Hold a current WA Driver’s License (manual C Class).

Our Recruitment Process

As part of our recruitment process, we require a pre-employment medical, drug and alcohol screen and a National Police Clearance.

If you would like to join us on our growth journey, please apply now.

Vaults Minerals respectfully requests that recruitment agencies refrain from submitting unsolicited resumes unless expressly invited to do so.

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