Mark Chaseling in

Mark Chaseling

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Enterprise Network Services (ENS) - Manager at Rio Tinto
📍 Australia

Mark is a senior technology and transformation leader at Rio Tinto, specializing in large-scale global network programs. With a background that includes studies at the Australian Institute of Company Directors, he has a proven history of driving operational excellence, significant cost reduction, and strategic vendor management across major enterprises like Telstra and NBN Co.

Outside of his corporate role, Mark is an avid cyclist. He frequently organizes and participates in team rides, including social events with colleagues and senior leadership like the Rio Tinto CEO, showcasing his passion for the sport and building team camaraderie through shared activities.

In 1994, he received a Bravery Award from the NSW Government for his role in preserving life and property during the bushfire emergency.

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Experience
29 Years
Current Role
Enterprise Network Services (ENS) - Manager
Job Level
Middle
Location
Australia
Personality Overview

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Communication Style
Decision Approach
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Priorities

Topics Mark cares about

Global Network Transformation
He leads Enterprise Network Services at Rio Tinto, delivering global programs like SD-WAN rollouts, secure cloud connectivity, and next-generation network services.
Strategic Cost Reduction
He has a track record of delivering major savings, including a 30%+ reduction in network run costs at Rio Tinto, saving tens of millions of dollars.
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Career

Work history

10-2023
Enterprise Network Services (ENS) - Manager
Rio Tinto
5-2021 - 10-2023
Senior Procurement Manager - Global Technology
Rio Tinto
3-2018 - 5-2021
Senior Commercial & Procurement Manager
Telstra
11-2011 - 5-2017
Senior Commercial & Procurement Manager
NBN Co Limited
10-2008 - 11-2011
Senior Network Strategy Consultant
Ericsson
In the press

Media appearances

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Education
2021 - 2022
Company Directors Course (GAICD)
Australian Institute of Company Directors
2013 - 2017
Masters of Construction Law
University of Melbourne
Social presence
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Behavioral profile

DISC profile (public)

DISC behavioral profile

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