In-Demand Site engineer mechanical Jobs in Perth, Wa

Lead Mechanical Engineer
Acciona —Perth WA
- APIs
- Leadership
Mechanical Engineer - Resources
AECOM —Perth WA
- Full-time
- Hybrid work
- Bachelor's degree
- Communication skills
Senior Mechanical Engineer
CIMIC Group —Perth WA
- Full-time
- Bachelor's degree
- Leadership
Senior Project Engineer, Mechanical
Acciona —Perth WA
- Full-time
- Management
- Administrative experience
- Construction
Service Sales Engineer - Hägglunds
Rexroth —Malaga WA
- Full-time
- CRM software
- Sales
- Engineering
Quick Apply
Project Engineer
Hitachi —Perth WA
- Full-time
- Bachelor's degree
- In-person
- Communication skills
5d
Lead/Senior Project Engineers - Perth
Lycopodium —Perth WA
- Engineering
- Bachelor's degree
- Communication skills
Key Account Manager (Maternity Cover)
John Crane Sealing Systems —Perth WA
- $50,000 - $60,000 a year
- Full-time
- Sales
- Business development
- In-person
Quick Apply
Mechanical Design Engineers
IMS Australia —Perth WA
- Full-time
- AutoCAD
- CAD
- Bachelor's degree
Project Engineer (Southern Cross Electrical Engineering (SCEE Group)
Southern Cross Electrical Engineering (SCEE Group) —Perth WA
- From $9,500 a month
- Full-time
- AutoCAD
- Construction
- In-person
- Employee stock purchase plan
- Relocation assistance
Quick Apply
Regional Technical Specialist
BYD Australia —Perth WA
- Microsoft Powerpoint
- Microsoft Word
- Microsoft Excel
5d
Chemist Vacation Student
Alcoa Corporation —Kwinana WA
- Full-time
- Time management
5d
Lead Study Engineer
Brightstar Resources —Subiaco WA
- Health insurance
Technical Specialist - GET
CQMS Razer Pty Ltd —Welshpool WA
- Hybrid work
- Welding
Field Engineer
Swagelok Australia & New Zealand —Canning Vale WA
- $120,000 - $135,000 a year
- Full-time
- Sales
- Engineering
- Microsoft Office
Quick Apply
4d
Engineering Summer Vacation Program Feb 27
Monadelphous —Perth WA
- Seasonal
- Bachelor's degree
- In-person
- Leadership
Principal Process Safety Engineer
Bradken —Perth WA
- Parental leave
- Employee assistance program
Quick Apply
11d
Mechanical Technician
Acciona —Perth WA
- Full-time
- Microsoft Excel
- Supervising experience
- No degree
- Health insurance
- Parental leave
14d
Mechanical Supervisor
Clough —Perth WA
- Supervising experience
- Organisational skills
- Construction
- Health insurance
- Employee assistance program
Mechanical Engineer
Mizco —Malaga WA
- AutoCAD
- Microsoft Excel
- Management

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site engineer mechanical jobs near perth, wa

Lead Mechanical Engineer

Acciona -
Perth WA

Apply Now

Job Details

Qualifications

Mechanical Engineering
Primavera
APIs
Microsoft Project
Leadership

Full Job Description

ACCIONA is a global company, leading in the development of regenerative infrastructure that creates a positive impact on society. Our workforce consists of more than 65,000 professionals, present in more than 40 countries across the five continents, all contributing in our mission to design a better planet. Are you a passionate individual who wants to make a difference, promote sustainable development, and find solutions to the biggest global challenges including climate change, overpopulation, and water scarcity? Come and join us in building the infrastructure our planet needs to achieve a sustainable future.

Job Description

The Project

Acciona is delivering the Alkimos Seawater Desalination Plant– a landmark infrastructure project that will secure Western Australia’s water future. This world-class facility will provide a sustainable, climate-resilient water source for generations to come.

Join a high-performing team at the forefront of engineering innovation, sustainability, and community impact.

The Role

We are seeking a Lead Mechanical Engineer - Commissioning to provide technical leadership through final delivery and transition to operations.

Reporting to the Manager, Commissioning, you will lead commissioning activities, resolve complex system challenges, and drive plant performance. This is a senior role overseeing engineers, technicians, and operations personnel.

Key Responsibilities

Lead commissioning and integration of complex mechanical systems, ensuring safe, compliant, and operationally ready outcomes
Provide engineering leadership and team oversight across commissioning engineers, technicians, and operations personnel
Drive technical problem-solving and optimisation, diagnosing issues, resolving deficiencies, and improving overall plant performance
Manage system interfaces and integration, ensuring reliability and alignment across multidisciplinary functions
Oversee mechanical performance and verification, including rotating equipment, system alignment, startup, and maintenance strategies
Ensure compliance with standards and quality requirements, embedding Australian standards, QA processes, and Safety in Design principles

Required Skills and Competencies

Degree in Mechanical Engineering
Strong commissioning experience on major infrastructure projects (desalination, water, energy or similar)
Solid knowledge of mechanical systems (pumps, compressors, piping, pressure testing)
Experience with commissioning phases including flushing, alignment, functional testing, and start-up
Ability to read and interpret P&IDs, GA drawings, isometrics, and vendor documentation
Working knowledge of relevant codes and standards (ASME, API, ISO)
Proven leadership experience managing multidisciplinary teams in site-based environments
Strong planning and coordination capability, including commissioning schedules, punch lists, and contractor/vendor management
Experience with commissioning documentation, test reports, and handover packages
Confident communicator with ability to engage across site teams, contractors, and stakeholders
Strong problem-solving mindset with the ability to make decisions under pressure
Familiarity with digital tools (commissioning/completions systems, MS Project/Primavera or similar)

Why Join Acciona?

At ACCIONA, we provide a dynamic and inclusive work environment where employees are empowered to grow their careers. We offer professional development opportunities and encourage innovation and collaboration. Our culture is built on respect, safety, and accountability, ensuring every team member feels valued and supported.

ACCIONA has been given the Top Employer 2022, 2023, 2024 & 2025 certification in Australia, which certifies the company's commitment to excellence in human resources management and those who focus on putting their people first through their exceptional HR policies. Since establishing a presence in Australia in 2002, ACCIONA has made significant investments in local opportunities and project development. ACCIONA employs more than 3,000 people in its renewable energy, infrastructure and water projects across Australia & New Zealand.

We are an Equal Opportunity Employer and promote equality and diversity. Indigenous Australians and candidates from minority groups are encouraged to apply.

Apply Now

Refine Your Search

site engineer mechanical jobs in perth, wa

Lead Mechanical Engineer

Mechanical Engineer - Resources

Senior Mechanical Engineer

Senior Project Engineer, Mechanical

Service Sales Engineer - Hägglunds

Project Engineer

Lead/Senior Project Engineers - Perth

Key Account Manager (Maternity Cover)

Mechanical Design Engineers

Project Engineer (Southern Cross Electrical Engineering (SCEE Group)

Regional Technical Specialist

Chemist Vacation Student

Lead Study Engineer

Technical Specialist - GET

Field Engineer

Engineering Summer Vacation Program Feb 27

Principal Process Safety Engineer

Mechanical Technician

Mechanical Supervisor

Mechanical Engineer

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