In-Demand Principal mechanical engineering Jobs

Principal Mechanical Engineer - Water Infrastructure
WSP —Melbourne VIC
- Bachelor's degree
- Communication skills
- Employee stock purchase plan
- Parental leave
Principal Civil Engineer - Water Infrastructure
AECOM —Sydney NSW
- Full-time
- Hybrid work
- CAD
- Bachelor's degree
- Construction experience
Principal Mechanical Engineer
Mott MacDonald —Sydney NSW
- Full-time
- Communication skills
9d
Senior Construction Modeller (Civil Engineering Draftsperson)
Multiplan —Perth WA
- $95,000 - $110,000 a year
- Overtime
- CAD
- Computer skills
- Construction experience
Quick Apply
Principal Mechanical Engineer (Buildings)
Stantec —St Leonards NSW
- Part-time
- Engineering
- Communication skills
- Work from home
- Employee assistance program
Mechanical Engineer, Building Services - Hybrid
WSP Australia —Sydney NSW
- Full-time
- Hybrid work
- HVAC
- Organisational skills
- Employee stock purchase plan
- Parental leave
Principal Mechanical Engineer - Technical Expert
Primero Group —Osborne Park WA
- Bachelor's degree
- Communication skills
- Parental leave
Mechanical Field Engineer
KBR —Matraville NSW
- Full-time
- Analysis skills
- Bachelor's degree
- Leadership
- Parental leave
3d
Mechanical Draftsperson
Rehlko —Thebarton SA
- Full-time
- AutoCAD
- Communication skills
5d
Senior or Lead Mechanical Engineer
Primero Group —Osborne Park WA
- Bachelor's degree
- Leadership
- Parental leave
Principal Fire Protection Engineer
AECOM —Sydney NSW
- Full-time
- Hybrid work
- AutoCAD
- Engineering
- Leadership
Sales Manager - New Equipment Sales
Industrial Plant & Service Australia Pty Ltd —Somersby NSW
- $170,000 - $200,000 a year
- Full-time
- Sales
- Master's degree
- Bachelor's degree
- Relocation assistance
Quick Apply
Asset Engineer
Territory Generation —Alice Springs NT
- Full-time
- Management
- Maintenance
- Analysis skills
7d
Mining Engineer
Evolution Mining —Parkes NSW
- CAD
- Fuel card
- Health insurance
Principal Technology Architect- AI
Infosys —Sydney NSW
- $212,505 - $246,693 a year
- Azure
- Computer Science
- AWS
- Health insurance
- Parental leave
Principal Engineer - Mechanical & Structures
Northrop Grumman —Springfield Central QLD
- Parental leave
- Employee assistance program
Expression of Interest - Engineers for Major QLD Rail Projects | Brisbane
UGL Limited —Brisbane QLD
- Full-time
- Leadership
13d
Principal Mechanical Engineer
Downer Group —Carrara QLD
- Full-time
- Leadership
Senior Principal Structural Engineer
McDermott —Perth WA
- Full-time
- Education
- Bachelor's degree
- Construction experience
- Wellness program
- Health insurance
Engineer - Lead E&M
Clough —Cooma NSW
- Contract
- Microsoft Powerpoint
- Microsoft Word
- Microsoft Excel
- Parental leave
- Employee assistance program

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Principal Mechanical Engineer - Water Infrastructure

WSP -
Melbourne VIC

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Job Details

Benefits

Employee stock purchase plan
Parental leave

Qualifications

Mechanical Engineering
Responsive web design
Bachelor's degree
Autodesk Inventor
Communication skills
Water treatment

Full Job Description

What if your next role helped shape the future of water in Australia?

At WSP, we don’t just design infrastructure — we redefine how communities connect with water. Join a global network of experts, contribute to landmark projects, and do the kind of work the world truly needs. Here, curiosity is celebrated, ideas are welcomed, and careers are shaped as uniquely as the people behind them.

Our Water team partners with governments, utilities, developers, and industry to deliver innovative, sustainable, and future‑ready solutions across Australia. From concept to completion, we are transforming how water infrastructure supports communities, economies, and the environment.

We are seeking an Principal Mechanical Engineer to join our Melbourne team, placing you at the forefront of some of Australia’s most transformative water infrastructure programs.

The Opportunity

We recognise that everyone brings unique strengths. While experience in the water sector is highly valued, we also understand that careers develop in different ways. Whether you are operating at Associate or Principal level , we will shape the role around your technical strengths, career aspirations, and long‑term goals.

In this role, you will:

Drive the technical quality of water and wastewater infrastructure design projects.
Lead mechanical and hydraulic design across the full project lifecycle.
Produce and review high‑quality technical documentation and contribute to proposals and pursuits.
Manage and coordinate design requirements across multiple projects or program work packages.
Lead design packages across a diverse portfolio of water infrastructure projects. Experience in D&C packages highly regarded.
Collaborate within a responsive, client‑focused design team to exceed project expectations.
Support project and design management activities.
Mentor emerging engineers and collaborate across local and national teams.

About You

You are a qualified and experienced Mechanical Engineer with a passion for water infrastructure and a collaborative, solutions‑focused mindset.

Ideally, you bring:

A Bachelor’s degree in Mechanical Engineering (or equivalent).
Chartered status (CPEng).
Proven experience (15 years+) in engineering consultancy or design roles for contractors or asset owners, with essential experience in the water sector .
Strong technical capability across water infrastructure and treatment systems.
Hands‑on experience in hydraulic design (e.g. water utilities, pump stations); exposure to CFD or pipe stress analysis is advantageous.
Confidence in equipment selection and specification for complex systems.
Proficiency in stress analysis using software tools or analytical methods.
Familiarity with Plant 3D or Inventor (advantageous).
Knowledge of CHAIR, HAZOP, and Safety‑in‑Design practices.
Strong communication skills, with the ability to prepare and review technical reports and work effectively with clients and internal teams.

Why Choose WSP?

At WSP, you’ll find a workplace where you’re supported, empowered, and inspired to grow. We offer:

Competitive remuneration and flexible working arrangements.
Clear career pathways, including mentoring, leadership development, and national or global secondment opportunities.
An inclusive culture that values diverse perspectives and encourages you to bring your whole self to work.
Meaningful, purpose‑driven projects that help shape the future of water.
Benefits including paid parental leave, purchased leave options, global mobility opportunities, and more.
Access to our Employee Share Purchase Plan , allowing you to become a vested partner in WSP’s success.

Here, you’ll find more than just a role — you’ll find a place to thrive, grow, and make an impact .

Imagine a better future for you, and a better future for us all.

With us, you can.

Apply today.

Apply Now

Refine Your Search

principal mechanical engineering jobs

Principal Mechanical Engineer - Water Infrastructure

Principal Civil Engineer - Water Infrastructure

Principal Mechanical Engineer

Senior Construction Modeller (Civil Engineering Draftsperson)

Principal Mechanical Engineer (Buildings)

Mechanical Engineer, Building Services - Hybrid

Principal Mechanical Engineer - Technical Expert

Mechanical Field Engineer

Mechanical Draftsperson

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Principal Fire Protection Engineer

Sales Manager - New Equipment Sales

Asset Engineer

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Principal Technology Architect- AI

Principal Engineer - Mechanical & Structures

Expression of Interest - Engineers for Major QLD Rail Projects | Brisbane

Principal Mechanical Engineer

Senior Principal Structural Engineer

Engineer - Lead E&M

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