About Guidera O’Connor (GO)

At Guidera O’Connor, we deliver more than infrastructure. We create the essential systems that enable communities and industries to access safe water, protect the environment, and build resilience for the future.

For more than two decades, we have partnered with customers across Australia to solve complex water and wastewater challenges through innovative thinking, specialist expertise, and collaborative project delivery.

Our exclusive focus on the water sector means we understand the unique operational, regulatory, and sustainability challenges our customers face.

By combining engineering excellence, practical construction experience, and a commitment to long-term partnerships, we deliver solutions that maximise value, reduce risk, and leave a positive legacy for the communities we serve.

About the Role

Guidera O’Connor are seeking a Senior Mechanical Engineer to join our team looking for meaningful work in the water and wastewater industry. You will own multiple complex design projects, technical leadership and mentorship of the entry level members of the design and engineering teams.

About you

You will bring

- A bachelor’s degree in mechanical engineering and 10+ years in a similar role
- Engineers Australia Competency Standards Stage 2 for Professional Engineers
- Advanced expertise in engineering standards, principles, design methods, and practices
- An ability to guide teams and mentor entry level engineers
- Effective communication skills, particularly in cross-functional, collaborative teams
- Current knowledge and understanding of all HSEQ obligations

More specifically you will:




- Work closely with a diverse range of stakeholders across Australia, leveraging your superior communication and negotiation skills to meet strict project and Client objectives
- Partner with estimators, design drafters, design managers, procurement and project managers to ensure designs are completed on time and within budget.
- Carry out complex design work that meets the requirements of project specifications and associated standards
- Be the Subject Matter Expert in your field including hydraulic modelling, pump and valve selections, and piping design.
- Select and specify equipment including storage and pressure vessels, aeration and mixing systems, mechanical separation equipment, sludge handling and dewatering equipment.
- Utilise your experience in risk management to produce engineering designs that meet project quality, safety and environmental requirements through implementing techniques including Safety in Design (SID), HAZOP, CHAIR and incorporating appropriate preventative and mitigative measures into designs.
- Support construction and commissioning teams to secure project continuity and successful project delivery through development of commissioning documentation and day-to-day adhoc support.




- Foster positive client relationships
- Drive technical strategy and innovation
- Implement best practices, continuous improvement while mitigating risks

Guidera O'Connor is an equal opportunity employer. If you meet most, but not all of the criteria, we'd still love to hear from you. Diversity & Inclusion

At Guidera O’Connor, we value a diverse, inclusive, and respectful workplace. We strongly encourage applications from people of all backgrounds, regardless of age, gender, culture, or identity.

As part of our commitment to gender equity, we aim to increase the participation of women in the construction industry and encourage applications from women for all roles.

As part of our Reconciliation Action commitment, we also strongly encourage applications from Aboriginal and Torres Strait Islander peoples.

Our Benefits

We believe our people are our greatest asset, which is why we invest in their wellbeing, development, and success.

Our employees enjoy competitive remuneration, career development opportunities, career progression pathways, flexible work arrangements where appropriate, health and wellbeing initiatives, employee recognition programs, social and team events, and opportunities to contribute to meaningful community and sustainability initiatives.

At Guidera O’Connor, you’ll be supported to build a rewarding career while maintaining a healthy balance between work and life.

Apply

Please apply online.

For further information, please contact the People & Culture team at [email protected]

📌 Senior Mechanical Engineer (Thebarton)
🏢 Guidera O'Connor
📍 Thebarton