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Senior Process Engineer

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Onsite

Senior Process Engineer

TRILITY

Senior Process Engineer

Skills

Testing & QABusiness Development

13 days ago

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Important information


Contract type:

Permanent

Location:

Sydney NSW, Australia

Work mode:

Onsite

Published on:

6 October 2026

What they need


Due to a busy project portfolio and a number of growth prospects, TRILITY is looking to appoint a Design and Commissioning Manager (Senior Process Engineer skillset) to join our Projects team.

This role can be based in any of our NSW or VIC locations.

The role

Reporting to the General Manager as a subject matter expert in water and wastewater treatment systems, you’ll play a pivotal role in both the design and commissioning phases of medium to large-scale water and wastewater treatment infrastructure projects. You’ll also contribute technical insight across the wider business and help shape TRILITY’s future capabilities.

Key responsibilities

  • Lead conceptual and detailed process/mechanical design for municipal water and wastewater infrastructure.
  • Manage and coordinate multidisciplinary design teams across projects and tenders (up to 30+ people).
  • Implement robust quality assurance and document management systems.
  • Facilitate design review processes including HAZOP and Safety in Design (SiD).
  • Support early-stage business development with technical input and risk assessment.
  • Act as Commissioning Manager on major projects, leading teams through integrated commissioning activities.
  • Mentor junior engineers and collaborate closely with consultants, subcontractors, and suppliers.

What we are looking for

  • 10-15 years’ experience in design leadership of complex, multidisciplinary engineering environments.
  • Degree in Chemical or Mechanical Engineering.
  • Strong knowledge of water and wastewater treatment technologies.
  • Excellent leadership, communication, and stakeholder management skills.
  • Experience in project and quality management systems.
  • Experience with document and drawing management systems
  • Knowledge of the water industry in Australia / New Zealand
  • Willing to travel to meet project needs

Why TRILITY?

TRILITY is an established industry leader, solely dedicated to the delivery of water, wastewater and reuse solutions across New Zealand and Australia’s municipal, industrial and resource sectors. This leadership draws on more than 35 years’ experience of providing high-quality solutions for our public and private sector clients, including financing, design and construction, operations and maintenance, asset management, utility services, and equipment solutions. Our capabilities span the full life cycle of water, delivering services to millions of people every day.

What we have to offer you?

  • Competitive base salary + incentive + additional super after 2 years service
  • A dynamic and positive work culture, where hard work is recognised
  • Paid parental leave and ability to purchase additional leave
  • Reward and recognition program – receive payment for excellence and years of service
  • Wellbeing program including an employee assistance program, a free membership to Headspace and discounted wellness products
  • Have genuine impact on the future of TRILITY

To apply

If you are looking for a fast-paced, diverse role, then please submit your application, including a cover letter and resume, via the Seek apply button.

For further information on TRILITY, head to our careers page https://trility.com.au/careers/

TRILITY is an Equal Employment Opportunity employer who seeks to increase the diversity of its workforce. We encourage people from any background/culture, age, gender, sexual orientation, or people with an impairment to apply for this role. TRILITY is also a WORK180 endorsed employer for women – find out more at https://work180.com/en-au/for-women/employer/trility-pty-ltdWhy us?

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