Principal Engineer Asset Planning, Treatment
You’ll be someone who thrives on complexity, sees the whole system, and enjoys working collaboratively across disciplines.
Key systems-level role in the leadership of long-term planning and investment priorities
Systems - level strategic planning
Based in our Petone office close to the train station, beach and shops
This is a full time position of 40 hours per week
The remuneration range for this role is $117,099 to $165,316 (including KiwiSaver) depending on skills and experience
The opportunity
We’re seeking a Principal Engineer Asset Planning, Treatment to provide senior technical leadership across our treatment assets. In this critical role, you’ll shape long-term asset strategies, optimise lifecycle performance, and drive evidence-based investment decisions that ensure safe, reliable, and resilient water services.
You’ll lead the development of Facility Management Plans, commission and guide complex investigations, and work closely with operational and technical teams to translate risk, performance, and growth drivers into practical capital and renewal programmes.
This is an opportunity to influence region-wide outcomes—balancing regulatory, environmental, and community expectations—while providing expert technical leadership and direction across our treatment portfolio.
About you
To be successful in this role you will bring:
12+ years in in water infrastructure planning
A bachelor’s degree in engineering (Chemical, Environmental, or Civil) or a related discipline
Experience mentoring engineers and leading technical workstreams
Recognised expertise in water network engineering, asset lifecycle planning, and hydraulic/process modelling
Strong stakeholder engagement and technical leadership experience
A Chartered Professional Engineer (CPEng) or working towards this.
Benefits
At Wellington Water, our purpose extends beyond delivering great water services for the region; we foster a thriving community, support a diverse workforce, and offer supportive development opportunities. We genuinely care about your safety and wellbeing.
Our 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
For a full list of our employee benefits click here.
About us
Wellington Water Ltd is the professional water services provider across Greater Wellington and South Wairarapa. Our job is to provide safe and healthy drinking water, collect and treat wastewater, and ensure the stormwater network is well managed. We’re 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 our organisational heart. Our people are passionate about providing water services for our communities and environment which is reflective in our values; Tangata Tiaki, Whānau and Mana.
Applications close: Sunday 21 June 2026
How to apply
To view a copy of the position description: click here
To apply for the role, click on the ”apply” button or visit the Wellington Water Careers site, please note if you are a Wellington Water employee please apply using your work email.
For further information, email: JoinUs@wellingtonwater.co.nz
Applicants for safety sensitive roles 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.
- Department
- Strategy and Planning
- Role
- Service Planning
- Locations
- Petone Office
Petone Office
Staff benefits
1. Inclusive Culture: It is important to us that people love our culture. We embrace a workplace where diversity is celebrated, and inclusivity is at our core. Our team is united by passion, dedication, and a shared care for water and our community.
2. Safety and Support: We provide an Employee Assistance Scheme for crucial personal support, along with wellbeing and lifestyle education delivered through our Wellbe Team, ensuring you feel supported in and out of the workplace.
3. Health is Wealth: We prioritise your health with an annual voluntary health "warrant of fitness," immunisations, and flu vaccinations. Moreover, enjoy annual subsidised vision testing and contributions toward glasses to ensure clear vision.
4. Work-Life Balance: Where possible there is access to flexible work practices. And take advantage of our annual leave, reaching five weeks after three years of service, and 10 days sick leave from starting with us. In addition, take one paid day a year for your personal Wellbeing. We also offer parental leave and partner entitlements to support you during significant life moments.
5. Comprehensive Benefits: We have partnered with providers for discounted Southern Cross medical insurance, periodic vision and hearing tests, and eyewear subsidies. You can also access discounts at a range of retailers via Boost. Gain access to top-notch gear, machinery, PPE, and tools, fostering a safe work environment if you are “on the tools”. We also offer a staff referral bonus paid when a person is recruited for a senior front line position, and we may offer relocation support if you need to move into the district to work here.
6. Professional Growth: Grow your skills with a range of development opportunities. Boosting your personal and work career.
7. Community Connection: You can take one paid day a year to participate in voluntary work on a water-related activity. And maybe join our active Waiata group and be part of a community that works together, sings, and thrives together.
About Wellington Water Ltd
Wellington Water is owned by the Hutt, Porirua, Upper Hutt and Wellington city, South Wairarapa District, and the Greater Wellington Regional councils
The work Wellington Water does is vital and rewarding. We’re tangata tiaki for Wellington’s water, and caretakers of our water infrastructure. Every day, we work to ensure that our communities have access to safe, sufficient, reliable and efficient water services. WWL is growing, and opportunities are growing along with it. It’s a transformative time in the industry.