Senior Civil or Mechanical Engineer - Water & Wastewater

GHD; Port Macquarie-Hastings Council; Hybrid; AUD 90,000 - 120,000; Full time

Job summary

A leading engineering company is looking for a Senior Civil or Mechanical Engineer to manage and deliver water and wastewater projects. Candidates should have a Bachelor’s degree in Civil or Mechanical Engineering and 8 to 12 years of relevant experience. This role requires strong project management and client relationship skills, alongside technical abilities in design management. The company values flexibility in work arrangements and encourages applications from diverse backgrounds.

Benefits

Flexible work arrangements

Diverse and inclusive work culture

Opportunities for professional growth

Qualifications

• 8 to 12 years of relevant water or wastewater experience.
• Ability to lead and work in a multi-disciplinary team.
• Experience in preparing proposals and designs.

Responsibilities

• Deliver various water and wastewater projects effectively.
• Provide technical guidance to project teams.
• Develop innovative solutions in water treatment.

Skills

Client relationship skills

Project management skills

Design skills in water or wastewater

Technical report writing

Education

Bachelor’s degree in Civil or Mechanical Engineering

Tools

Civil or hydraulic design software

Job description

Job Description

The importance of water to the health of our world can’t be overstated.

As the frequency and intensity of floods, droughts and storms increases, the water industry must continue to build resiliency and lead from the front.

Together with our clients, we are thinking and doing things differently to help pre-empt and prepare for what's next. Be a part of this dynamic and committed team of diverse water specialists and drive change for your community.

You’ll be able to apply our powerful global network of skills and decades of experience to create positive water outcomes that respect nature and nurture communities.

Who are we looking for?

We are seeking a Senior Civil or Mechanical Engineer with a track record in delivering water and/or wastewater projects in either networks or treatment plants, to utilize your experience to drive the strategic development and continued growth of our team’s capabilities, and the delivery of complex water and wastewater projects for our clients.

You will manage the design of small to medium sized projects as well as develop your technical skills by working as part of the design team or assisting the design manager for large projects. You will bring an appetite for building and maintaining strong client relationships and a passion for delivering as part of a high performing team.

You will play a key role in delivery of ambitious and interesting projects, allowing you a balance of technical work, design management, project management, operational support, business development and client engagement.

Working with an energetic and high performing team, this position offers a variety of work and will see you involved in:

• Delivering various and significant NSW, Australian and international water and wastewater projects (either networks or treatment plants), by understanding clients’ needs, providing technical guidance and support to the project team for small, medium and large‑scale projects (capex in the 100’s of millions)
• Technical leadership and project management to guide key projects and mentoring other team members
• Using your technical and client relationship skills for the delivery of proposals, investigations and technical design projects
• Understanding client and project technical requirements, assisting to develop solutions, and preparation of technical reports, designs & specifications, client proposals and presentations
• Building and maintaining strong client relationships, including business development, and engagement throughout project delivery
• Working closely with our clients to develop innovative technical solutions in wastewater and water treatment

What you will bring to the team:

• Bachelor’s degree in Civil or Mechanical Engineering, coupled with between 8 and 12 years of relevant water or wastewater experience in either networks or treatment plants
• The ability to lead and/or work effectively within a multi-disciplinary team across the project lifecycle
• Strong client relationship skills, project management skills, and experience in preparing winning proposals
• Design or planning skills in water or wastewater networks or treatment, including producing technical reports, developing engineering drawings, specifications and tender documentation for water or wastewater treatment infrastructure
• Experience with using civil or hydraulic design software is preferable
• Project management or design management experience, together with a willingness and ability to mentor and provide direction to junior staff

We value wellness and flexibly, your role can be part-time or full‑time, and you can be based in Newcastle or any of our other Northern NSW offices (Port Macquarie, Coffs Harbour, Tuggerah, Tamworth, Orange or Lismore).

Interested? Apply now with your CV and a Cover Letter.

GHD is an equal opportunity employer, and we want everyone to be able to fully participate in our recruitment process. We value a diverse workforce and an inclusive culture. We encourage applications from Aboriginal and Torres Strait Islander peoples and people of all identities.

GHD embraces hybrid work arrangements to create a work environment focused on well‑being, flexibility and productivity where GHD people can thrive, this supports the diverse needs of our workforce while balancing the benefits of remote working with the value of face‑to‑face collaboration in the office.

Please note GHD offices will be closed from Thursday 25 December 2025 and reopening on Monday 12 January 2026. We will update you on your application progress as quickly as possible after this time.

We respectfully ask that no agency resumes be presented at this stage.

About Us

We bring our people together to create something bigger and solve some of the world's most complex problems. Come and experience the power of commitment and see strategy and ideas come to life when you join GHD.

Let’s drive real change.

At GHD, we don’t just believe in the power of commitment, we live and breathe it every day.

That’s why we pledge to empower our people to make a positive impact. Combining our deep technical expertise with the capabilities of our clients and partners, we respond to some of the most complex challenges facing our planet today.

See where your commitment could take you.

That’s the #PowerOfCommitment.

Who We Are

GHD is a global professional services company that leads through engineering, architecture, and construction expertise. We are an employee‑owned company with over 11,000 diverse and skilled individuals, across more than 200 offices spanning five continents.

The Power of Commitment is our brand promise. It’s what makes us different. We are bound to our stated vision and determination to address humanity’s most urgent needs: to make water, energy and urbanisation sustainable for generations to come.