Job Description
Description
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Sedgman Onyx delivers innovative project solutions for Australia's resources and infrastructure sectors, providing practical, cost-effective and adaptable engineering expertise for complex project challenges. As part of Sedgman and the broader CIMIC Group, we combine specialist capability with the strength of a global resources and infrastructure business.
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As we continue to grow, our team is supporting major resources, infrastructure and critical minerals projects across Australia, delivering sustainable, technically robust solutions that help shape the future of project delivery.
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To support this growth, we're looking for a
Lead Piping & Water Engineer
to join Sedgman Onyx and play a key role in advancing engineering excellence across our project portfolio.
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In this role, you will lead and coordinate piping systems engineering and design across non-process water infrastructure, mineral processing projects and related facilities. You will provide technical direction to mechanical piping engineering and design teams, ensuring safe, technically rigorous and high-quality outcomes.
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You will help resolve complex technical issues, strengthen design processes and support project outcomes that meet client and industry expectations.
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The successful candidate will bring a strong hydraulic engineering foundation, WaterGEMS expertise and practical design experience across major water infrastructure and mineral processing projects.
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What you'll be doing
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Provide mechanical piping engineering leadership across multiple projects, driving quality, timely delivery, innovation, technical integrity, risk management,



standards and safety.
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Plan workloads and provide technical and administrative direction to project personnel.
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Coordinate with other engineering disciplines to ensure integrated project delivery.
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Monitor and review the work of mechanical piping engineers, designers and drafting personnel to ensure technical competence, quality and performance requirements are met.
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Ensure all design documentation meets project and client requirements.
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Resolve complex design challenges and engage with engineering management on policy, technical or resourcing issues as required.
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Review, update and maintain standard drawings and Sedgman Onyx's engineering specifications to align with industry best practice.
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Provide effective leadership, coaching and mentoring to support and develop the team.
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What you'll bring
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Bachelor of Engineering (Mechanical)
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Minimum 15 years' experience in a design, consultancy or operational engineering role.
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Strong technical understanding of process and piping design, including non-process water network systems such as mine dewatering, abstracted water conveyance and potable water systems.
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Experience applying piping design and layout expertise within mining and mineral processing environments.




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Proficiency with hydraulic water modelling packages, ideally WaterGEMS or, at minimum, EPANET.
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Experience with Newtonian, non-Newtonian, gas or fluid modelling packages such as FluidFlow.
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Proven experience leading and managing technical/project teams.
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Sound understanding of project management principles and controls.
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Demonstrated experience in a senior technical leadership role.
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Ability to identify and resolve technical issues or escalate as required.
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What we can offer you
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Lead meaningful work:
Take ownership of high-value studies, project development opportunities and technical outcomes that influence major project and business decisions.
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Work with industry-leading experts:
Collaborate with experienced engineering, project delivery and business professionals across complex mining, resources and infrastructure projects.
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Shape growth and client outcomes:
Play a key role in developing opportunities, strengthening client partnerships and supporting Sedgman Onyx's continued growth.
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Grow your career in an inclusive environment:
Gain exposure to diverse projects, cutting-edge solutions and strategic initiatives within a supportive, team-oriented and inclusive workplace.
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How to express your interest
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If you're ready to bring your mechanical piping and water engineering expertise to a role where you can contribute to complex resources projects and grow your technical leadership, we'd like to hear from you. Please submit your application by clicking "apply" now.
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📌 Lead Piping & Water Engineer (Perth)
🏢 Sedgman
📍 Perth