Designs, builds, and operates intelligent infrastructure
Principal Mechanical Designer
Full-Time
No salary listed
Expert
Associate's
Brisbane QLD, Australia
HybridFlexible remote working options are available; full-time, part-time, and job-share arrangements may be considered.
Mechanical EngineeringDesign Engineering
About the job
Requirements
At least 10 years of experience in a similar role, with proven experience producing design documentation for mechanical components of multidisciplinary infrastructure projects in a consultancy environment.
An Associate Degree or Advanced Diploma of Mechanical Engineering, an equivalent qualification, or significant experience as a senior mechanical designer.
Knowledge of 3D mechanical design software used to produce mechanical design drawings across the full design lifecycle, from prefeasibility through construction.
Advanced understanding of engineering principles, project objectives, deliverables, project budgets, and time frames.
Ability to produce large or complex design projects using AutoCAD, Inventor, and/or Navisworks.
Strong understanding of applicable legislation and technical standards and guidelines.
Strong client management capabilities.
Willingness to coach junior designers by advising on solutions and developing fit-for-purpose solutions to engineering problems.
Strong written and verbal communication skills to participate in business development activities as needed.
Responsibilities
Lead civil and mechanical pipeline design, including above-ground steel works for brownfield and greenfield projects, pump station design, mechanical plant design, and non-process infrastructure for raw water, process water, or water supply.
Design complex multidisciplinary projects and ensure engineering project design drawings comply with statutory and regulatory requirements and company policies and practices.
Provide high-level technical support for engineering project design drawings.
Perform mechanical design of supporting works for water management infrastructure, including mechanical plant, equipment, pump stations, pipelines, tailings dams, creek diversions, roads, and drainage infrastructure.
Prepare construction documentation, including mechanical layouts, general arrangements, material take-offs, piping and instrumentation diagrams, and isometric views.
Prepare deliverables for review.
Contribute to technical innovation and continuous improvement for the design team.
Review design and drafting documentation.
Support the well-being, development, and resourcing of junior team members.
Participate in client management and business development.
Job Description
We are seeking a Principal Mechanical Designer with to join our Brisbane design team. The primary purpose of this position is to provide detailed mechanical designs for multi-disciplinary projects working across sectors supporting works for water management infrastructure (i.e. pump stations and pipelines for water supply and sewerage infrastructure).
You will be responsible for
Lead civil and mechanical pipeline design including above ground steel works (brownfield and greenfield), pump station design, mechanical plant design and non-process infrastructure (raw water, process water or water supply)
Design of multi-disciplinary complex projects, ensuring design drawings for engineering project work comply with statutory and regulatory requirements and company policies and practices
Providing high level technical support for all design drawings for engineering project work
Mechanical design of supporting works for water management infrastructure (i.e. mechanical plant, equipment, pump stations and pipelines for Tailings Dams, Creek Diversions, Roads, Drainage Infrastructure)
Preparation of construction documentation (mechanical layouts, GA’s, MTO’s, PIDs and isometric views)
Preparation for ‘For Review’ deliverables
Contribute to technical innovation and continuous improvement for the design team.
Review of design and drafting documentation.
Support the well-being, development and resourcing of junior team members.
Participate in client management and business development.
Qualifications
Ideally, you will have 10+ years of experience in a similar role with proven experience with design documentation of mechanical components of multi-disciplinary infrastructure projects in a consultancy environment. In addition, you will also have:
Associate Degree or Advanced Diploma of Mechanical Engineering (or equivalent qualification) or significant experience as a senior mechanical designer
Knowledge of 3D mechanical design software for use to produce mechanical design drawings across all design lifecycles (prefeasibility to for construction)
Advanced understanding of Engineering principles, project objectives, deliverables, project budgets and time frames
Ability to produce large / complex design projects using AutoCAD, Inventor and/or Navisworks
Strong understanding and familiarity with applicable legislation and technical standards / guidelines.
Strong client management capabilities
Willingness to coach junior designers with advice on solutions and develop fit-for-purpose solutions to engineering problems
Strong written and verbal communication skills to participate in business develop activities as needed
Additional Information
The Benefits
Brisbane CBD location.
Flexible working arrangements, including remote working options and full-time or part-time working hours.
Competitive remuneration
Purchased additional annual leave.
A structured learning and development framework to align with career progression goals and dedicated individual training / conference allowances.
An inclusive team culture that celebrates performance and rewards accordingly.
Paid Primary and Secondary Carer Leave Policy, reflecting our commitment to work-life balance.
Support structures like our Employee Assistance Program, professional mentoring, and buddy program for new starters.
Opportunities to work on special interest projects.
Opportunities to work across government, private and resource sectors.
Opportunities to travel for work across multiple offices.
Great cultural environment where teamwork and camaraderie are promoted and valued.
Supportive leadership based on openness.
We are open to considering this role on a full-time, part-time or job-share basis. Please let us know of your flexibility requirements.
Egis is committed to creating an inclusive, creative culture that embraces diversity and flexibility. We offer generous parental leave, support flexible work practices and strive to create an environment where employees can connect, collaborate, grow and succeed.
H.W. Lochner has completed its rebrand as Egis following their merger in July 2025, creating a unified US infrastructure business with over 1,500 professionals across 70 offices.
The combined organisation offers services across transportation, water, energy and environmental infrastructure. It integrates Lochner's 80-plus years of US infrastructure experience with Egis' global expertise in architecture, consulting, construction engineering, operations and mobility.
Globally, Egis operates in 70 countries with approximately 23,500 employees. The company ranks 17th on Engineering News-Record's Top 225 International Design Firms list and seventh in transportation.
Laurent Germain, Egis Group CEO, said the rebrand strengthens their US market position and enables them to leverage their global network to address complex client challenges.
Lochner, an Egis Group company, has appointed Karen Wiemelt to its Board of Directors. Wiemelt brings over 35 years of leadership experience in the nuclear and energy sectors, with expertise in programme management, environmental remediation and strategic planning.
Wiemelt previously served as Senior Vice President and General Manager at Jacobs, where she led the company's global Energy, Security and Technology business unit. In that role, she managed a portfolio exceeding $1.5 billion in annual revenue and over 8,000 employees worldwide. She has also served on numerous industry and corporate boards.
Founded in 1944, Lochner merged with Egis Group in July 2025, positioning it as the cornerstone of Egis' US growth strategy. Wiemelt holds a Bachelor of Science degree in Chemical Engineering from the Colorado School of Mines.
CHICAGO, Nov. 24, 2025 /PRNewswire/ -- Egis, a global leader in architecture, consulting, construction engineering, operations, and mobility services, has acquired RockSol Consulting Group, Inc., a Colorado-based transportation infrastructure firm specializing in engineering, planning, environmental compliance, design, construction management, inspection, and materials testing. The acquisition strengthens Egis' transportation market position in the fast-growing Mountain States and West region of the U.S. Founded in 1996 and headquartered in Thornton, Colorado, RockSol is known for the highest standard of reliability and quality in delivering highway, bridge, transit, and public works projects that enhance safety, preserve environmental resources, and improve communities. With more than 240 employees, RockSol serves municipalities, counties, state Departments of Transportation, and federal civilian agencies throughout the Western U.S. "We warmly welcome President and Founder Saeid Saeb and our new colleagues from RockSol," said Terry Ruhl, Chief Executive Officer of Egis in the U.S
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