Lead Water & Wastewater Process Engineer

Profound People; Wellington; Hybrid; NZD 120,000 - 180,000; Full time

Benefits offered by this job

Flexible work arrangements

Extra annual leave

Volunteer leave

Flexible public holidays

Job summary

AECOM is seeking a Senior Water & Wastewater Process Engineer to lead and deliver process engineering solutions for water and wastewater facilities in New Zealand. You’ll work across a diverse portfolio, contributing to treatment plant upgrades, design delivery, and operational improvements.

You’ll bring 5+ years of water/wastewater experience, strong design capabilities, and the ability to communicate clearly with clients and stakeholders. Hybrid work model available in NZ.

Qualifications

• Bachelor's degree in Chemical, Process, Environmental, Mechanical or Civil Engineering.
• Around 5+ years’ experience in water and wastewater engineering.
• Strong experience in water and/or wastewater treatment process design.
• Experience developing process calculations, PFDs, P&IDs and treatment plant design documentation.
• A practical understanding of treatment plant operations and performance.
• Experience supporting commissioning, start‑up, optimisation or operational activities.
• Strong technical problem‑solving skills and attention to detail.

Responsibilities

• Lead and deliver process engineering solutions for water and wastewater treatment facilities.
• Develop process designs from concept and feasibility through to detailed design and delivery.
• Prepare technical reports, feasibility studies, design calculations, specifications and supporting documentation.
• Contribute to the design and optimisation of complex treatment processes and facilities.
• Work alongside civil, mechanical, electrical, structural and instrumentation engineers to deliver integrated solutions.
• Support commissioning, start‑up, optimisation and operational troubleshooting where required.
• Provide technical guidance and mentorship to engineers developing their careers.
• Build trusted relationships with clients, operators and project stakeholders.
• Contribute to successful project delivery across programme, budget, quality and technical objectives.

Skills

Water/wastewater engineering

Process design

Client relationships

Mentorship

Education

Bachelor's degree in Chemical, Process, Environmental, Mechanical or Civil Engineering

Job description

AECOM is seeking a Senior Water & Wastewater Process Engineer to lead and deliver process engineering solutions for water and wastewater facilities in New Zealand. You’ll work across a diverse portfolio, contributing to treatment plant upgrades, design delivery, and operational improvements.

You’ll bring 5+ years of water/wastewater experience, strong design capabilities, and the ability to communicate clearly with clients and stakeholders. Hybrid work model available in NZ.