Meet the team

Here at Vertex we have a fantastic culture which is built by cultivating relationships, keeping each other safe and challenging ourselves to excel. Meet some of our people.

Nick Callagher Headshot

Nick Callagher
Managing Director

Nick is a visionary leader with a wide range of engineering disciplines. Nick started Vertex in 2011 with a vision in mind ‘design innovation + engineering excellence’.

With a solid reputation in the delivery of Materials Handling, Packaging and Process Engineering projects, Vertex has become one of the fastest growing innovative Dairy and Consumer Foods engineering companies in New Zealand. This foundation has attracted some of the best engineers in Australasia and gives clients confidence and assurance that their projects are a success.

Nick continues to work with his team personally to provide visionary leadership, engineering support and is key when it comes to client relationships as he has a passion for people.


Greg Fahey Headshot

Greg Fahey
General Manager

Greg Fahey has over 30 years’ experience in dairy and beverage projects in New Zealand and Asia. A process engineer and project manager himself, Greg has the right background to lead the Vertex team, and also to work with customers to identify and deliver value together through design work and projects.

For Greg it is important to build relationships and understanding of what is important to customers, as well as providing innovation, high-quality engineering and safe projects.


Russell Steven Headshot

Russell Stevens
Senior Process Advisor

Russell is a Process Engineer with extensive experience in all aspects of dairy industry processes. He has experience in sanitary process design, project management, site supervision and commissioning. He has been involved with many of the projects involving the processing of dairy fats, oil blends, fractionation of fats, butter and butter oil production in New Zealand within the last 30 years.

He has undertaken several confidential projects for dairy companies, including working collaboratively with researchers to scale up processes for commercial production. He has led teams of Process, Mechanical and Electrical Engineers, and Designers.


Wayne Norman Headshot

Wayne Norman
Project Manager

Wayne is a Project Manager with wide-ranging experience in all aspects of dairy industry processing, packing, project management and commissioning. He has been involved with projects in the dairy and food industries in New Zealand for the last 40 years. These projects have included the complete process installation of infant formula manufacture, dairy fats and oils, and various process to packing lines.

Wayne is heavily involved with site supervision being responsible for the control and movement of material and resources. He is “hands on” when it comes to commissioning.


Rod Walker Headshot

Rod Walker
Electrical and Automation Manager

Rod has 20 years of experience in industrial projects. In the last 10 years his role has encompassed Head Electrical Engineer on multi-disciplined projects and Project Manager on smaller, electrical only projects.

His design knowledge ranges from 400V to field control integration with automation systems and instrumentation. With major design/build experience, he excels in taking a project from inception through to completion with full documentation.


Peter Harrison Headshot

Peter Harrison
Process Design Engineer

Peter has 25 years’ experience in the New Zealand dairy industry working on a wide range of projects from initial concepts right through to commissioned plants – specialising in process piping and customizing cad software for efficiency gains.

He enjoys problem solving and taking an idea and turning it into reality. He works to a high standard enjoys being part of a team.


Paul Signal Headshot

Paul Signal
Process Engineering Manager

Paul is a Senior Process Engineer with extensive experience in the dairy industry. Paul has experience in process design, operations, technical, research, project and portfolio management, and sales. He has been at the forefront of technology development in dairy and has technical strengths in membranes, evaporation, drying, UHT and aseptic packing.

Let’s Discuss Your Engineering Project

Our team will do the hard work for you. From concept to full implementation, watch your vision unfold…

Discuss your engineering project with us