Mechanical Engineer (Water Treatment)

What if you could do the kind of work the world actually needs?

At WSP, you can.

Here, you’ll tap into a global network of experts, contribute to landmark water projects, and collaborate with some of the brightest minds in the industry. You’ll be encouraged to stay curious, challenge what’s possible, and bring fresh thinking to a team that genuinely values diverse perspectives.

This is your chance to shape a career as unique as you are — and make a real impact while you do it.

Join WSP’s National Water Treatment Team in Brisbane

We’re not just delivering water projects, we’re redefining how communities interact with water now and into the future. Our team partners with governments, utilities, developers, and investors to create sustainable, future‑ready solutions across the full water cycle.

If it moves, treats, stores, or transforms water — our team is on it.

With a growing national portfolio and strong momentum over the next four years, we’re expanding, starting with Brisbane.

What You’ll Do

Depending on your experience, you’ll have the opportunity to:

• Drive technical excellence across water and wastewater infrastructure projects
• Produce robust mechanical and hydraulic designs from concept through delivery
• Manage the design of complex projects or program work packages
• Elevate client satisfaction and project outcomes
• Support project and design management activities
• Mentor emerging engineers and collaborate nationally with multidisciplinary teams

About You

You’ll bring:

• A Bachelor’s degree in Mechanical Engineering
• Eligibility or progression toward CPEng
• 3 years+ experience in engineering design or consultancy delivering WTP/WWTP projects locally
• Strong technical capability in water/wastewater conveyance and treatment
• Experience with hydraulic design, pump station design, CFD, or pipe stress analysis
• Ability to select, size, and specify mechanical equipment
• Familiarity with Plant 3D or Inventor (advantageous)
• Understanding of CHAIR, HAZOP, and Safety in Design
• Excellent communication and report-writing skills

Why Choose WSP?

We’re committed to creating an environment where you feel valued, supported, and empowered to grow. Here’s what makes WSP stand out:

• Competitive pay – Because great talent deserves great recognition
• An inclusive, welcoming team culture
• Tailored career pathways – With mentoring, leadership development, and secondments
• Flexible work options – Fit work around life, not the other way around
• Purpose-driven projects – Make a meaningful impact on communities nationwide
• Support for career returners – We value every pathway
• Up to 16 weeks paid parental leave
• Buy up to 8 extra weeks of annual leave
• Global and national mobility opportunities – See more, learn more, grow more

Join a close-knit Water team backed by the strength of 69,000+ people globally, working together to build a more resilient world.

Our Employee Share Purchase Plan is open to all permanent employees—helping you share in WSP’s long-term success. Learn more about our commitment to wellbeing and growth via our Employee Benefits page.

Ready to shape the future of water?

This is your chance to make a real difference—on your terms, with your vision, alongside a team that shares your ambition.

Because with us, you can.

Apply today.

🔎 Questions? Let’s talk.

For a confidential conversation about this role—or other opportunities in our Water Group—reach out to Carmina Navalta, Talent Acquisition.