Senior Mechanical Engineer

Guidera O Connor Pty Ltd; Perth; On-site; AUD 130,000 - 170,000; Full time

Benefits offered by this job

Flexible work arrangements

15 days personal leave

Parental leave

Volunteer leave

Free lunches

Sponsorships

GO wellbeing program

Job summary

Guidera O’Connor Pty Ltd is seeking a Senior Mechanical Engineer to lead multiple design projects in water and wastewater. You’ll mentor junior engineers, provide technical direction, and ensure designs meet project requirements and safety standards.

You will bring a Bachelor’s in mechanical engineering and 10+ years in a similar role, with strong communication across stakeholders and a thorough knowledge of HSEQ obligations.

Qualifications

• Bachelor’s degree in mechanical engineering; professional Engineers Australia Stage 2 competency.
• Advanced expertise in engineering standards, principles, design methods and practices.
• Ability to guide teams and mentor entry level engineers.

Responsibilities

• Own multiple complex design projects and provide technical leadership.
• Collaborate with cross-functional teams to meet project objectives.
• Carry out complex design work per project specs and standards.
• Be SME in hydraulic modelling, pump/valve selection, and piping design.
• Support construction and commissioning teams to ensure project delivery.
• Drive technical strategy, innovation and risk mitigation.

Skills

Team leadership

Cross-functional comms

Hydraulic modelling

Pumps & valves

Piping design

Risk management

Safety in Design

Stakeholder management

Mentoring

Negotiation

Education

Bachelor's degree in mechanical engineering

Job description

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.

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

Our employees enjoy competitive remuneration, professional 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.

Benefits

• Flexible Work Arrangements
• 15 Days Personal Leave
• Length of Service Accrued Additional Leave
• Parental Leave
• Volunteer Leave
• Free Lunches
• Sponsorships
• GO Wellbeing Program