Over 125 years of national and international business experience
The JAC Civil Leadership Team are committed to ensuring the prosperous growth and sustainable development of the Wide Bay region. They realise this commitment through their consistent implementation of JACC’s five-year strategic plan for developing close, long-term partnerships with our clients, future proofing the workforce and achieving financial sustainability. Their business experience and commercial acumen are complimented by many advanced professional and formal qualifications, and industry and board achievements.
Glen Grohn
Managing Director and Senior Engineer
Glen is a registered civil/structural engineer (RPEQ) with over 25 years’ experience working in Victoria, New South Wales and Queensland. In 2004, Glen established a civil/structural consultancy, Grohn Construction Design (GCD), that provided a range of conception, design, project management and administration services to the Wide Bay region.
In 2008, he recognised the need for a local civil construction company and established JAC Civil Pty Ltd. With his unique experience, Glen can project manage a range of end-to-end civil construction projects from estimation/budgeting, engineering and design, resource allocation, financial monitoring, site geotechnical investigations and reporting, stakeholder liaison and the day-to-day management of work in progress. This includes advanced structural and civil design for town planning, in-house survey and 3D design (12D ) of council roads and streets, and project engineering management of various Department of Transport and Main Roads (DTMR) projects and state-controlled roads. Glen’s hands-on approach is integral to JACC’s ongoing operational success.
Debbie Leeson-Rabie
General Manager
Debbie brings a wide range of national and international engineering and operations expertise to JACC. Over Debbie’s career she has led departments that maintain and manage $2.47 billion of infrastructure and fleet assets, provided waste services, and regional port management. She was also President of the Institute of Public Works Engineering Australasia (IPWEA Victoria) and held non-executive roles as Director of the IPWEA (Victoria and national board) and Chair of the Finance, Audit and Risk Committee (IPWEA Victoria). With over 30 years of experience in civil, mechanical and transport engineering disciplines –working for a metropolitan water authority as well as local governments, consultants, and civil contractors – Debbie brings a wealth of knowledge and capability to JACC.
As General Manager, Debbie effectively oversees all aspect of JACC project delivery to ensure we remain the preferred project delivery partner in the Wide Bay region.
Marcus Klein
Chief Operating Officer
Marcus is a highly skilled operations manager with over 30 years of experience with all types of civil construction. These projects have varied in size from $500 000 to $131 million and include bridge building, road construction and restoration, drainage and pipelaying, pump stations and subdivisions. Marcus also has a demonstrated track record in supervising transport infrastructure projects, where he ensures compliance with the Department of Transport and Main Roads and Queensland Rail specifications, regulations and protocols.
Marcus is responsible for all JACC’s daily operations. Projects that Marcus has held full responsibility for have excelled in resource management, utilisation and productivity. He has consistently delivered project program milestones and met, or improved, forecasted cost targets.
For Marcus, getting the job done right the first time depends on picking the best people for the team and always putting safety first. His successful management of projects up to $10 million has qualified Marcus to expertly lead any project.
Reitz Van Zyl
Chief Financial Officer
Reitz is a certified accountant with a demonstrated history of financial management for international and domestic companies. He has over 30 years of experience in the manufacturing sector and has always been involved in the operational and strategic side of JACC business.
In addition to performing traditional financial functions (accounting, payables, receivables, payroll, IT, procurement and treasury), Reitz provides strategic direction on corporate and financial governance, financial forecasting and the adoption of effective IT practices for the civil construction industry. His leadership role also involves monitoring detailed financial performance indicators, project tracking and post-project performance reviews with our operational teams. This is a critical aspect of continuous improvement and an ever-increasing aspect of exceeding end-to-end project quality and contract delivery expectations.
Callan Charlesworth
Chief HR Officer
Callan brings a pragmatic, solutions-focused professional approach to JAC Civil, supported by extensive corporate and human resource experience across a range of industries. He has achieved strong outcomes in compliance, organisational development and workforce performance management, underpinned by a Bachelor of Laws and a Master of Business Administration, majoring in Strategic Human Resource Management.
His key accountabilities at JAC Civil include people & performance strategies, Recruitment, Information Management Systems, Safety, Special projects and Change management. His leadership ensures JAC Civil remains well positioned to attract, develop, and retain talented employees, reinforcing the company’s reputation as an employer of choice and providing a sustained competitive advantage.
Scott Wallace
Workshop Manager
As Workshop Manager at JAC Civil, Scott is responsible for overseeing the operational utilisation of the company’s extensive range of fleet of plant and equipment. Having been with JAC Civil for the past 10 years, he has developed comprehensive knowledge of the organisation’s operations and asset requirements.
Scott’s responsibilities include the coordination, allocation, and monitoring of plant and equipment across multiple projects to maximise utilisation and operational efficiency. He works closely with project teams, supervisors, and other departments to ensure plant and equipment are available, well maintained, and fit for purpose. He also coordinates transport logistics to ensure equipment is delivered in accordance with project schedules, upcoming contract commitments, and operational requirements, minimising downtime and supporting the successful delivery of projects.
