Senior Mechanical

About Us

For over 35 years, GPA Engineering has been a trusted, Australian-owned consultancy delivering engineering, procurement and construction management services across water, energy, renewables, defence, mining, and hydrogen. We develop and implement projects that drive critical infrastructure and support industries across Australia.

With offices nationwide (Adelaide, Brisbane, Melbourne, Sydney, Darwin, Perth) and a reputation for technical excellence, our strength lies in our people. We bring together diverse, motivated professionals who value teamwork, integrity, safety, and sustainability. At GPA, you'll find the scale and expertise of a leading consultancy, combined with the supportive culture of a close-knit team.

About the Role

GPA is looking for an enthusiastic Senior Mechanical (Project) Engineer to join and help lead our Adelaide Mechanical/Mining team. This is an exciting opportunity to take the next step in your career and be able to truly influence the direction and growth of the group. Potential long term opportunities in Team Leading, Client Management and Industry involvement.

GPA is seeking candidates with 5 through to 10 years of relevant experience, ideally having experience delivering minerals processing type projects with local clients. GPA's Engineers are expected to have a range of technical and soft skills to perform the role, as listed below. Applicants with lesser experience are expected to possess some of the skills and show strong potential to build on the others.

Key Duties

• Support project delivery of GPA's Mechanical Team – specifically the Minerals Processing portfolio.
• Project Engineering.
• Application of relevant Standards to engineering design.
• Specific technical competencies and developing solutions for piping and facilities designs.
• Estimating and supporting bids.
• Management of own priorities and meeting project requirements.
• Adherence to our HSE and quality systems.

To be successful in this role, we are seeking for candidates with passion for quality engineering and client outcomes, great attention to details, and with the following relevant experience:

• Industry Experience & Relationships in Mining & Mineral Processing.
• Technical experience, ideally working in a consulting environment – delivering small brownfields projects.
• Outgoing – client facing, project engineer experience with a desire to build long term – lasting relationships with clients.
• Strong communication skills – working with multi-discipline teams, supporting GPA's other mechanical engineers and working directly with Client PM's and stakeholders.
• Working knowledge of local mining processing plants is highly desired.
• Ability to manage own workload across multiple projects.
• Knowledge of relevant codes, standards and specification of Mechanical piping/equipment.
• Experience in technical report writing, cost estimating and proposal writing.
• Australian recognised Mechanical Engineering degree is essential

We understand that every candidate's value is unique, and every individual brings their own set of skills and knowledge beyond just the role description, be that with broader technical interest and analytical skills or interest in company strategy and front-end advisory. So if you feel like you don't have everything listed below, we'd still like to hear from you if you love engineering, like working with great people and seek professional growth.

A requirement for this role is to complete a satisfactory pre-employment medical check and Australian police clearance.

How to Apply

Applications must be submitted via the online recruitment system before COB 19th January 2026.

If you require adjustments to the recruitment process to support your application, you may email us at

Please Note: This role is subject to an extended recruitment timeline due to our upcoming company shutdown. All applications received by the closing date will be reviewed, and shortlisted candidates will be notified prior to the Christmas break. Interviews, however, may be scheduled after operations resume in early January

What we offer:

At GPA, we want our people to thrive - both professionally and personally. We're big enough to deliver complex, high-profile projects, yet small enough that you'll always feel valued and supported.

• Competitive Salary & Rewards - a fair and attractive compensation package with paid overtime, recognising the value of the work you put in.
• Career Growth & Development - structured progression pathways, company-sponsored training, and support towards professional membership and Chartership.
• Flexibility - hybrid working options and cultural leave swap days, because we know work-life balance matters.
• Health & Wellbeing - wellbeing programs, confidential EAP support, and a culture that genuinely looks out for each other.
• Family-Friendly Benefits - paid parental leave for both primary and secondary carers, plus policies that support every stage of life.
• Community & Culture - a workplace that values connection and fun, from weekly sports teams and fitness clubs, through to social events like cinema nights, family BBQs, quiz nights, and celebrations of diverse cultural traditions.
• Giving Back - a strong commitment to charity, with GPA donating over $3 million directly to charitable organisations.
• Diversity & Inclusion - a team where different perspectives are respected and collaboration drives better outcomes.

At GPA, you'll be joining a workplace that combines the professionalism of a leading consultancy with the warmth of a supportive, people-first culture. We're proud that over 80 of our team members have been with us for more than 10 years – a testament to the career growth and long-term commitment fostered here.  Hear directly from our team and explore their experiences in our employees' testimonials: 

We welcome applications from people of all backgrounds, experiences, and identities – including (but not limited to) Aboriginal and Torres Strait Islander peoples, people of all ages, cultures, ethnicities, gender identities, sexual orientations, neurodiversity, and those with disabilities. If you require adjustments to the recruitment process to support your application, you may email us at .

Disclaimer to Recruitment Agencies:

Please be advised that GPA Engineering does not accept resumes submitted by third-party recruitment agencies. All job applications must be submitted directly by the candidate through our official career portal or via direct contact with our HR team. We will not be held liable for any fees or claims from recruitment agencies regarding unsolicited resumes or candidate submissions. We appreciate your understanding and cooperation.