Lead mechanical commissioning activities from pre-commissioning through to start-up, testing and handover across pumped hydro systems
Coordinate closely with OEMs, contractors and internal teams to ensure systems are delivered, tested and handed over in line with program
Oversee supervisors and trades during commissioning works, ensuring safe and efficient execution on site
Verify completion of mechanical installation and pre-commissioning checks prior to system start-up
Plan and support dry and wet commissioning of major plant including turbines, pumps, valves and associated balance of plant systems
Assist with testing, fault finding and optimisation of rotating equipment and mechanical systems under OEM direction
Manage defects through identification, tracking and close-out in collaboration with subcontractors and suppliers
Review commissioning documentation, test packs and procedures, supporting systemisation and completions processes
Support integrated system testing and demonstrate systems meet performance and operational requirements
Assist with training of Operations & Maintenance teams during commissioning and handover
Ensure compliance with Permit to Work, isolations and lockout/tagout (LOTO) requirements
Contribute to commissioning planning, risk assessments and safe work methodologies
Maintain strong stakeholder relationships across client, JV partners and delivery teams
Drive a strong safety, quality and environmental culture on site

Degree in Mechanical Engineering or a related discipline
Strong experience in mechanical commissioning on major infrastructure, energy or industrial projects
Background working with heavy mechanical plant (e.g. pumps, turbines, rotating equipment, pressure systems)
Experience delivering commissioning activities on large or complex projects
Ability to work closely with OEMs and subcontractors to support testing, troubleshooting and system performance
Working knowledge of commissioning processes and completions systems (e.g. CCMS or similar)
Solid understanding of safety in high-risk environments, including isolations and energy control
Proven ability to coordinate across multiple stakeholders and site teams
Strong communication and problem-solving skills with a practical, hands-on approach
Experience on remote or FIFO projects (desirable)

Competitive remuneration with salary continuance, and salary sacrifice options.
Great leave benefits including 18 weeks paid parental leave with super and up to an extra 18 weeks of super paid on further periods of unpaid parental leave, multicultural leave exchange and two extra days to prioritise your wellbeing.
Career progression underpinned by our exciting pipeline of work means you’ll have the opportunity to work on iconic projects that are shaping cities and communities.
Learning and development opportunities where you’ll have access to emerging talent programs, building your career through clear career pathways, plus technical and leadership training and development opportunities.
Inclusion, diversity and equity is part of how we work. We want everyone at John Holland to feel that they belong – that’s why we’re working hard every day to foster a more inclusive culture, backed by a business-wide inclusion strategy to bring about meaningful change.
We’ve also got active employee resource groups that support our commitments including those around gender equality and reconciliation.
Flexible working that works for you as we know flexibility means different things to different people. Whether it’s flexi-hours, flexi-parenting, flexi-leave, flexi-shifts or flexi-work, we’re committed to helping our people work flexibly.

Senior Mechanical Commissioning Engineer

Key skills