Senior Engineer - Water Treatment

The opportunity

This role will provide you an opportunity to make a difference through optimising 3 Waters distribution across the Wellington Region. You will take the lead on strategic planning and delivering network investigations that will ultimately lead to improved reliability of drinking water supply for the community and environmentally safe and efficient distribution of wastewater.

With a strong emphasis on collaboration this role will also see you:

• Involved in tactical planning across the region’s wastewater treatment plants.
• Mentor and develop graduate and intermediate engineers.
• Provide technical support for the capital program and investment planning.

About you

To be successful in this role you will bring:

• A relevant tertiary qualification such as a Bachelor of Engineering (preferably Chemical/Process, Environmental, Mechanical or Civil Engineering). CPeng highly desired.
• Minimum 5 years relevant experience of wastewater or drinking water treatment projects.
• Strong technical knowledge in wastewater treatment.
• Sharp investigative skills with a solutions focus.
• Excellent relationship management skills.
• Strong verbal and written communication skills.

Remuneration
This is a full time position of 40 hours per week
The remuneration range for this role is $108,644 to $153,379 p.a. (including KiwiSaver) depending on skills and experience.  
Benefits

Tiaki Wai's purpose extends beyond delivering great water services for the region; they foster a thriving community, support a diverse workforce and offer supportive development opportunities.

Their benefits include:

• Flexible working arrangements including up to 2 days working from home
• Comprehensive wellbeing programme, including one paid wellbeing day annually
• Formal and informal professional development opportunities
• 5 weeks annual leave accrual will be available following 2 years of continual service

About Tiaki Wai

Tiaki Wai is the professional water services provider across Greater Wellington and South Wairarapa. Their job is to provide safe and healthy drinking water, collect and treat wastewater, and ensure the stormwater network is well managed. A multi-council owned entity, tasked to manage the infrastructure and deliver water services to our communities. From 1 July 2026, a new chapter in water services begins. Tiaki Wai will take over responsibility for providing Three Waters Services to approximately 433,000 residents across the Wellington metro regions.

Tiaki Wai will own the water assets it operates giving it greater independence to manage and improve water services for current and future communities, Wellington Water employees will transition into this new council-owned entity.
The value of water (a precious taonga) sits at their organisational heart. Their people are passionate about providing waters services for our communities and environment which is reflective in our values; Tangata Tiaki, Whānau and Mana.

For further information, email: View email address on au.fitly.work or call 021 803 467.

Applicants will be required to undergo drug and alcohol testing prior to commencing employment with Wellington Water. You must also be legally entitled to work long-term in New Zealand or eligible to obtain a working visa.




Reference number: 1721690
Profession:EngineeringEngineer - Civil 3 Waters

Company: Archway Recruitment
Date posted: 30th Jul, 2026