Principal 3 Waters Engineer

Flowstate Consulting

Grey Lynn, Auckland Full-Time
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Overview

Build Something Exceptional

Are you a Principal Engineer who feels restricted by the rigid structures of established firms? This is your opportunity to join an agile, NZ-owned engineering startup at a pivotal moment.

We aren't looking for another cog in a machine. We are looking for a technical powerhouse who wants to help build the machine itself.

In this role, You will work closely with our leadership to deliver high-quality design work while playing a direct role in shaping our technical standards, our client base, and our future team. This is a role for an engineer who wants to see their fingerprints on every success the business achieves.

Why Join

  • Total Influence: You aren't inheriting someone else's messy legacy systems. You will help define our workflows, software preferences, and project delivery methods.
  • Direct Growth Path: As the company grows, so does your role. There is a clear, unobstructed pathway into a top-tier leadership position as we scale.
  • Agility & Freedom: We are low on bureaucracy and high on action. If you have a better way of doing things, you have the green light to implement it.
  • Project Quality: We are involved in major projects with quality clients. You get to work on high-stakes infrastructure with the flexibility of a modern startup environment.

Your Impact

  • Technical Design & Delivery: Own the end-to-end delivery of complex Three Waters projects.
  • Strategic Mentorship: As we grow, you will lead the charge in mentoring incoming junior and intermediate engineers, setting the bar for excellence.
  • Client Partnership: Work directly with clients as a technical advisor, helping us expand our footprint through exceptional delivery and relationship building.
  • Technical Authority: Take responsibility for technical outputs and ensure our deliverables are best in class.

What You Bring

  • The Experience: 10+ years in Three Waters / stormwater engineering within the New Zealand market.
  • The Credentials: CPEng status is essential (or very close to completion). 
  • The Tools: Experience / understanding of flood management, ideally experience with TuFlow, InfoWorks ICM, HEC-RAS or other hydraulic modelling suite.
  • Mindset: You are a self-starter, a confident communicator and ready to work on challenging projects. 

The Package

  • The Package
  • Salary: A competitive salary, negotiated to reflect experience and impact.
  • Autonomy: A workplace that values results over desk time.
  • Culture: A genuine, values-led team where you are a foundational member, not just an employee.
  • Exposure: Variety of projects, including large-scale developments as well as smaller local projects. 
  • Support: Professional memberships and continued education support

Skills Required

  • Stormwater Management
  • Catchment Planning
  • Design
  • Flood Assessments
  • Green Infrastructure
Apply Now

Senior Stormwater Engineer

Overview

Opportunity for a Senior Stormwater Engineer with 8+ years of relevant experience to join us and be part of a successful and growing company.


If you are someone who values excellence, mastery and purpose in your work and will thrive in a team environment where every day is different, we'd love to chat!


Why Join ?



Total Influence:

You aren't inheriting someone else's messy legacy systems. You will help define our workflows, software preferences, and project delivery methods.



Direct Growth Path:

As the company grows, so does your role. There is a clear, unobstructed pathway into a top-tier leadership position as we scale.



Agility & Freedom:

We are low on bureaucracy and high on action. If you have a better way of doing things, you have the green light to implement it.



Project Quality:

We are involved in major projects with quality clients. You get to work on high-stakes infrastructure with the flexibility of a modern startup environment.

What You Bring



What You Bring


Experience:

8+ years of experience in hydraulic modeling within the New Zealand market.


Stormwater Modelling:

Experience with packages such as TUFLOW, InfoWorks ICM, DHI (MIKE Suite), and HEC-RAS.


Spatial Analysis:

QGIS or ArcGIS for data management, analysis, and flood mapping outputs.


Autonomy:

You are at a point in your career where you can troubleshoot technical hurdles and produce high-quality models with minimal oversight.


The Startup Mindset:

A self-starter who enjoys the pace of a growing business and wants a role where their contribution is visible, valued, and influential.


The Package

Salary:

A competitive salary, negotiated to reflect experience and impact.


Autonomy:

A results-focused environment that values trust, flexibility, and accountability over hours at a desk.


Culture:

A small, values-led team where you play a key role in shaping the business, not just filling a position.


Exposure:

Variety of projects, including large-scale developments as well as smaller local projects. 


Support:

Professional memberships and continued education support


Skills

  • Stormwater Management
  • Green Infrastructure
  • Flood Management
  • Flood Modelling
  • Catchment Planning


If you’re ready to move away from the corporate grind and into a role where you genuinely matter, let’s have a conversation.