Senior Process Engineer

We are seeking a full time, self-motivated, well-balanced and energetic Senior Process Engineer to join our engineering team to design various water and wastewater projects. We offer a fast paced and dynamic working environment with a broad range of projects across various industries. The position is based in Castle Hill, Sydney with occasional requirements to travel to site.


  • Extracting and synthesising key requirements from detailed project specifications to inform the design and execution of the project from the tender phase through to project delivery.
  • Analysis of feed and treated water quality data to determine an effective water treatment solution.
  • Collaboration, design and input into plant and equipment layout for the generation of plant general arrangements and 3D plant models.
  • Preparation of equipment, instrument and valve schedules and equipment selection in accordance with the project specification.
  • Development of piping and instrumentation diagrams (P&IDs).
  • Process modelling and design, through the tender phase to detailed design, including hydraulic calculations and pump sizing, membrane, and biological system modelling.
  • Preparation of project documentation including of plant control philosophy, operation and maintenance manuals etc.
  • Ensuring that company quality, safety and environmental standards are maintained.

Preferred skills & experience

  • Bachelor of Chemical or Process Engineering
  • 10+ years process design experience within the water and wastewater industry
  • Experience with various water and wastewater treatment processes
  • Excellent verbal and written communication skills

Desirable criteria

  • Experience with water/wastewater treatment process modelling software
  • Experience with various water/wastewater technologies and systems 
  • Flexibility to work site hours and valid driver’s licence.

Only those applicants with the unrestricted right to work in Australia will be considered.

If you are ready to be a part of the Gradiant Australia team, please upload a current resume to Seek or email

Gradiant is a leading global solutions provider and developer of cleantech water projects for advanced water and wastewater treatment. Gradiant's robust, end-to-end solutions and proven technical delivery and operations expertise enable sustainable and cost-effective treatment of the most complex water challenges.