Leadership Team

Michael Carretta

Michael Carretta

Managing Director

BE(Min Proc)(Hons), MAusIMM, GAICD

Michael joined Sedgman in 1998 and was appointed Managing Director in December 2016. He has held senior management and technical roles within Sedgman, most recently as Acting Managing Director, Director Engineering and Project Delivery with accountability across all our operating regions. Michael was previously Global Director Operations, where he was responsible for global contract operations, including coal and metals plant operations, international operations expansion and diversification into new market sectors.

Michael has over 20 years’ of experience in the mining industry. Prior to joining Sedgman he held various engineering and management roles with BHP Coal.
 

Simon Stockwell

Simon Stockwell

General Manager, Client and Project Development

BE(Mech)(Hons), GCAppLaw

Simon rejoined Sedgman in 2011 having worked for the Company previously from 1995 to 2002. Simon is responsible for Client and Project Development globally. Simon’s previous roles include Regional Director, responsible for Australia East and Asia, and General Manager – Projects, responsible for the successful delivery of engineering, studies and projects across Australia.

Simon is a mechanical engineer with over 20 years of experience across the resources, power and infrastructure industries. Prior to rejoining Sedgman, he was Operations Manager for AMEC Minproc in Brisbane. He has also held senior roles at Thiess, UGL and Kellogg Brown & Root.

Ken Boulton

Ken Boulton

General Manager, Operations

BE(Mech)(Hons)

Ken joined Sedgman in 2006 and is responsible for operations globally, including coal and metals plant operations. Ken was previously Executive General Manager Australian Operations, responsible for Australian processing facility operations and the support of off-shore operations activities.

He possesses a mechanical engineering background and has gained significant operational understanding from 20 years of experience within the resources sector, including involvement within coal, base and precious metals processing operations. Prior to joining Sedgman Ken assumed management roles at Goldcorp and Mount Isa Mines, where he was responsible for the maintenance and operations of mining infrastructure, mobile fleet and minerals processing facilities

Samantha Douglas

Samantha Douglas

General Manager, People, HSEQ and Communications

BBus (HRM&IntBus), MEmpLaw, GAID

Samantha joined Sedgman in 2005 and is responsible for leading and providing strategic direction to the People and the Health, Safety and Environment teams globally.

Prior to her current role, Samantha held the role of Chief Human Resources Officer and was responsible for leading human resources globally and was extensively involved in the development of Sedgman’s human resources infrastructure and governance. Samantha has held various senior management and technical roles and has over 15 years’ of experience across the mining, construction and professional services sectors.

John Buttner

John Buttner

General Counsel

B.Ec, LL.B, LL.M

John joined Sedgman as Director Legal and Commercial in August 2016 and is responsible for legal and commercial management, which also embraces the role of Company Secretary and overseeing governance and risk processes.

Since being admitted to legal practice in Queensland in 1990, John has extensive legal and commercial experience across the construction, infrastructure and mining services sectors gained in private practice and in-house roles. Prior to joining Sedgman, John held the position of Senior Counsel at Thiess since 2000, with responsibility for major resources infrastructure and contract mining. In that time John worked closely with Sedgman on the Thiess Sedgman Joint Venture projects.

Mitchell Bayer

Mitchell Bayer

Chief Financial Officer

BCom, MCom(App Fin), CPA

Mitchell joined Sedgman in August 2016 and was appointed Chief Financial Officer in December 2016. Mitchell is responsible for leading the Finance, Taxation, Information Systems Technology and Shared Services teams globally.

Mitchell holds and Bachelor of Commerce degree from JCU, is a member of CPA Australia and has a Masters in Applied Finance from the University of Queensland. Mitchell has over 20 years’ finance experience across the construction, mining and services industries. Prior to joining Sedgman, he held various senior roles at Ventia and Thiess, where he was responsible for business planning and analysis, financial governance and compliance, financial risk management and business transformation.