Firmus Technologies

Senior Mechanical Engineer

Firmus Technologies

Sydney, AustraliaPosted Jul 3, 2026

Job description

ROLES AND RESPONSIBILITIES


Firmus Technologies is seeking an experienced** Senior Mechanical Engineer **in the Data Centre Infrastructure domain specifically in the mechanical, electrical and plumbing (MEP) area to join our Engineering and Technology team. The successful candidate will be involved end-to-end in the design, engineering, commissioning and operational support of Firmus’ state-of-the-art sustainable AI Factory developments.

This role is based in Australia, but travel is expected (10-30% time), primarily during the delivery phases of projects.

Key Responsibilities

  • Develop design and key documentation from concept to commissioning.
  • Assist in technical qualification, onboarding and management of 3 rd party consultants and contractors.
  • Carry out engineering design and calculations to provide system design for contractors.
  • Provide final equipment selections including required capacities and efficiencies for procurement and construction.
  • Review consultant designs.
  • Review contractor mechanical workshop drawings and equipment selections.
  • Assist in the creation of Operation and Maintenance manuals that shall include all maintenance requirements of systems and equipment.
  • Carry out site inspections to ensure the installation is in-line with the relevant documentation and specifications.
  • Participate in the commissioning of mechanical systems and ensure equipment and plant is operating at optimum performance.
  • Develop technical engineering standards.
  • Engage in R&D initiatives and design optimisation.
  • Mentor junior engineers and assist with their technical development

SKILLS AND EXPERIENCE

  • Bachelor’s degree in mechanical engineering.
  • 8+ years of experience with a minimum of 5 years of Data Centre MEP experience.
  • Strong working knowledge of heat transfer and fluid dynamics fundamentals including the application of appropriate international design standards (e.g. ASHRAE)
  • Familiarity with the Asia Pacific region and the application of local DC standards and norms is advantageous.
  • Strong analytical problem-solving skills with an innate ability to work with ambiguous problems and develop effective and innovative technical solutions.
  • Detail-oriented approach to work to ensure accuracy in design and testing and strong clear documentation.
  • Strong communication skills, both written and verbal. The ability to articulate ideas and convey technical information to non-technical stakeholders is a must.
  • Demonstrated experience of working in a cross-functional multi-cultural teams.
  • Excellent collaboration, organisation, and problem-solving skills.
  • Self-motivated with the ability to work independently and as part of a team
  • Strong willingness to learn and proactively contribute to team and organisational goals.
  • Flexibility to adapt to evolving project requirements and priorities with an eagerness to take on new responsibilities and learn on the job.