Meet Our Team


Allen Christensen

Company Director

BEng (Civil) | RPEQ | FIPWEAQ

Allen is the founding Director and Company Principal of ATC Engineers & Project Managers. Allen is a Registered Professional Engineer of Queensland with over 28 years of experience, hosting a wide range of skills within all aspects of the Civil Engineering sector.


Tanya Christensen

Company Secretary | Corporate Assets Manager

For the last 15 years, Tanya has worked alongside her husband & company Director, Allen Christensen developing ATC to where it is today. Tanya sits on the ATC Board of Directors and manages and monitors ATC's Corporate assets leveraging her knowledge and experience in Finance.



David Eberhard

Project Engineer

BEng (Civil)

David is a qualified Civil Engineer with experience in Project Management, Land Developments and Buildings.

He has a wide range of experience across the civil engineering industry from onsite construction experience with roads, infrastructure services and commercial buildings.


Lynn Smith

Office & Administration Manager

With over 30 years experience, Lynn possesses extensive experience in the successful management of office functions. With a proven record of delivering tasks and projects to meet and exceed financial governance, and customer service requirements. Lynn is results orientated with highly developed organisational, time management skills and excellent communication.


Hayden Madder

Project Engineer (Casual)

BETC (Civil)

Hayden is a young motivated Civil Engineer with over seven (7) years experience working as a Project Coordinator with Local Government delivering projects in the Civil Engineering, Road Surfacing and Project Management fields.

He has strong contractual management knowledge and well known bitumen & asphalt and civil engineering skills.


Philip De Guzman

Technical Services | Design Manager

BSCE MEng PhD RPEQ (Civil | Structural)

Philip is a Civil / Structural Engineer with over 16 years of experience in planning, engineering, design, inspections, and project management of new construction and rehabilitation of civil and building structures.

Having worked both overseas and Australia, Philip has broad project experience ranging from small jobs to high-profile infrastructure projects covering bridges and transport infrastructure, energy and industrial facilities, ports and harbours, water and drainage, foundations and retaining walls, building structures and land development.



Finance Officer


Rajat Makhija

Graduate Project Engineer

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Rajat is a tertiary qualified engineer possessing a Bachelor of Civil Engineering and a Masters in Project Management. He has a clear passion for civil engineering projects and love to be onsite and involved in construction works. Rajat has a track record of making fit for purpose decisions which result in practical engineering solutions. He displays a humble and professional attitude to civil engineering and his interest in this field comes from a love of building and structures and an interest in improving communities.


Julian Lockwood

Senior Engineer | Design and Delivery

BEng (Civil) 

Julian is a Professional Civil Engineer with over 25 years practical experience in Geotechnical and Structural Engineering. Actively involved in structural, geotechnical, and civil design and inspection of residential, low rise commercial and industrial structures, failure investigation, piling solutions, tilt panel construction and project management.