Senior Executive Team

Rob Sisk

President & CEO

Rob Sisk was appointed President and CEO of MTU Detroit Diesel Australia Pty Ltd on 14th February, 2011 and subsequently was appointed member and Chairman of the MTU Detroit Diesel Australia Board of Directors.

Rob relocated to Australia from the United States, where he held leadership roles of steadily increasing responsibility at Detroit Diesel Corporation and United Technologies Corporation.

Immediately prior to joining MTU Detroit Diesel Australia, Rob was Senior Vice President at Atlantic Detroit Diesel Allison and had profit and loss responsibility for the off-highway business and operational responsibility for half of the company’s on- and off-highway branch locations.

He restructured ADDA’s off-highway operations with a focus on teamwork, added sales and project management staff, mapped processes and established performance metrics – resulting in significant revenue growth and operational improvements. Under his leadership, ADDA established new all-time product sales records in 2007, 2008 and 2009 and received MTU’s overall “Distributor of the Year” award in 2009.

Rob holds a Bachelor of Science in Mechanical Engineering from Rice University and completed requirements for a Bachelor of Arts in French, having studied at the Sorbonne in Paris, France. During his 37-year professional career, he has lived and worked in Indonesia, India, Saudi Arabia, France, the United States and Australia.

Rob is active in volunteer work both in Australia and the United States and regularly participates in charity events including the St Vincent de Paul Society’s CEO Sleepout and the Boston and Melbourne Marathons.

Jim Livermore

Chief Operations Officer

As Chief Operations Officer, Mr Livermore is responsible for both Eastern and Western Operations, together with technical support and business improvement functions.

He previously managed MTU Detroit Diesel Australia’s Eastern Region, and was responsible for the area’s AUD$185 million plus revenue portfolio. He continues to spearhead strategies to enhance performance and achieve financial goals for the business.

Over his 10 year tenure Jim has negotiated multiple repower and maintenance contracts with the largest mining customers in the area. An active member of the executive team, for several years Jim has provided guidance and direction for MTU Detroit Diesel Australia’s sustained viability.

He is active in developing new marketing and business opportunities that build on customer relationships, while being consistent with MTU Detroit Diesel Australia’s vision, mission and guiding values.

Jim joined MTU Detroit Diesel Australia in October 2001 as Branch Manager, Hunter Valley and has previously worked for: Komatsu Australia Pty Ltd, General Electric Industrial Systems, Hamersley Iron Pty Ltd.

He holds an Associate Diploma in Electrical Engineering and a Post Graduate Diploma in Business Management, and is the President NSW Superyacht Industry Association (2009/10).

John Zappia

Chief Financial Officer

John Zappia was appointed Chief Financial Officer on 2 December 2014, and is an integral part of the company’s long term sustainable business strategy under the Penske Automotive Group shareholdership. His responsibilities lie within the company’s financial operations and planning, as well as credit, accounts, treasury, procurement and risk and compliance.

John’s tenure with MTU Detroit Diesel Australia spans more than two decades, over which time he’s held various leadership roles, notably in the areas of finance, procurement, legal and compliance. He has been a member of the Executive team since 2006, Secretary for the Board of Directors since 2003 and is currently a Public Officer on the Board of Directors.

In 2010, John assumed responsibility for all corporate service functions, including human resources, training, IT, compliance, procurement, health safety & environment, and risk & compliance. In July 2013, John was promoted into dual roles, Chief Supply Chain Officer & Chief Information Officer, where he led the company-wide supply chain transformation project.

Over his tenure, John has successfully implemented MTU Detroit Diesel Australia’s Nova Project (2006-2009), the business strategy tasked to both improve and maintain best practice. John led the 2001 DDAA and MTU-A merger, as well as MTU Detroit Diesel Australia’s 2002 centralisation of finance functions. In 2012, John guided the company reorganisation project, encompassing the roll out of a new corporate vision, as well as values and behaviours.

John is a member of the Certified Practicing Accountants of Australia, National Institute of Accountants, as well as Chartered Secretaries Australia.

Hamish Christie-Johnston

Chief Sales Officer (Off-Highway)

Hamish Christie-Johnston joined MTU Detroit Diesel Australia in August 2014 as Chief Sales Officer and Executive Team member responsible for leading our off-highway segments, including the engineering and marketing functions.

With broad experience working with global OEMs for most of his career – across the fields of industrial sales and marketing, as well as equipment and asset management within the mining, construction and power systems industries – Hamish has a strong understanding of the markets that we operate in.

Hamish maintains a far reaching and customer-focused vision for the business and believes that successful outcomes result when we understand and respond quickly to the needs of our customers. He has a successful track record developing teams and implementing improved processes based on this philosophy.

Likening his role to that of a coach – ensuring that his team has the understanding, skills, and execution required to drive successful outcomes – Hamish has deep business planning experience within our markets, as well as strong leadership, communication and relationship-building skills.

Hamish holds a degree in Mechanical Engineering from Melbourne University, as well as MBA qualifications.

Kevin Dennis

Director On-Highway Business

Kevin Dennis was appointed to head up our extensive on-highway business and dealer network on October 20, 2014; with responsibilities including the management of all Australia Pacific on-highway sales and dealer development, as well as product and technical support functions.

We lean on Kevin’s customer-focused and inclusive management style, strong business acumen and leadership, as well as his in-depth knowledge of the truck and engine market, cultivated over 30 years’ of global experience, to further enhance our operations.

As a previous member of the MTU Detroit Diesel Australia team – holding various roles from 2011-2013 including Branch Manager – Victoria and Tasmania, Group Manager Off-Highway Markets, and Market Development Manager – C&I and Rail – Kevin has a proven track record of developing our market share and capitalising on growth opportunities.

Kevin plays an integral role in the continued expansion of our on-highway business in Australia and New Zealand, providing support to our comprehensive branch network, while meeting the needs of our on-highway dealers and customer base.

With a wealth of experience in the on-highway space, Kevin has cemented his capabilities in global senior management roles with Detroit Diesel Corporation, Daimler Trucks North America, and most recently at Navistar International, representing CAT Trucks’ brands throughout Australia-Pacific, with roles including Managing Director and before that, General Manager of Sales and Marketing.

Kevin is a current Executive Board member to the Truck Industry Council (TIC), an independent organisation that represents the united views of truck manufacturers, importers and diesel engine companies.