Our People

Our people are what makes your experience of working with BY Group exceptional. Highly skilled and qualified, our team has vast experience in Australia’s building and construction industry.

At BY Group, we’re all about having a positive impact in the local communities in which we work. The majority of our staff are Indigenous.

Brendan Williams


Mark Mundine


Beau Mundine


Malcolm Devin

Managing Director

Malcolm has 20 years’ experience in the development and construction industry delivering high quality projects. Before joining BY Group, he was a Director at a global property and construction company.

As General Manager of BY Group, Malcolm has day-to-day involvement in the delivery of each project. He has a broad range of experience in all sectors and asset types of development and construction.

John Cheyney

Estimating Manager

Before joining BY Group, John was a Senior Project Manager for a NSW State Transport Agency working on infrastructure, rail, station, and commercial projects. John has worked for more than 18 years in the construction industry.

John has previous experience at a global property provider working on commercial fit-outs and hotel projects. John is a Chartered Quantity Surveyor with the Royal Institution of Chartered Surveyors and has 12 years of project management experience in Australia.

George Kandylas

Operations Manager

George has over 30 years’ experience in the development and construction industries, having worked in numerous construction management and project directorship roles across a wide variety of sectors such as education, commercial, industrial, community, residential and government.

He is highly experienced in strategy development and directorship roles, and with oversight across the entire project lifecycle, he ensures that our clients receive continuity of service from inception to completion and post occupancy support.

David Anderson

Senior Project Manager

David has 25 years of construction expertise under his belt and extensive experience in the project delivery of civil and civic buildings in and around Sydney.

David is skilled in team building and with a high level of interpersonal and communication skills, and has the ability to work in a complex team environment successfully managing multiple stakeholders. He is focused on client satisfaction, quality, safety and environment and expert delivery on time cost and quality.

Lyle Harris

Construction Manager

Lyle has 14 years' in the construction industry. He started his career as a residential carpenter and progressed to a management position within a national construction company. He has extensive experience working on commercial, industrial, technology, and residential projects.

Lyle is a licensed Builder with proven experience in design management, cost planning, financial management, programming, and team leadership. Lyle has won 4 Master Builder awards on completed projects.

Hylton Ward

Construction Manager

Hylton has 23 years of industry experience, with a focus on single and multi-dwelling residential, industrial, civil, commercial, and retail fit-outs.

Hylton began his career with a carpentry apprenticeship in Auckland, New Zealand, after which he then completed a Bachelor of Construction Management. He followed this qualification into site supervision, management and project management positions across multiple sectors before entering the Sydney construction industry in 2006.

Mark Duncan

Site Manager

Mark has more than 18 years of industry experience, and is results-oriented, quality-focused, and deadline driven. He is a Site Manager with a proven record of success in managing various facets of construction within the commercial, industrial, and residential sectors.

Mark provides a clear vision and direction to assist in driving strong business growth and profitability, with distinctive attention to detail, while consistently researching information to achieve improved practices and procedures.

Michael Allison

Safety & Compliance Manager

Michael is a Chief Safety trainer in all things from site-specific induction training, forklift refresher, chain of responsibility in transport, to accredited first aid and HSR training.

His experience extends across many industries including 15 Years in defence, construction, transport and logistics, transportation of dangerous goods, driver training and security and risk management. With an extensive understanding of construction methodologies, Michael is able to actively manage quality through effective monitoring of internal processes on all BY Group sites.

James Woods

Project Manager

James is a descendant of the Bundjalung and Yaegl Aboriginal Communities of Northern NSW where he holds ties to the Robinson, Webb, and Duroux families.

James has worked on a vast range of construction projects over the past 2 years and has gained extensive experience in Contract Administration and Project Management. His personal goals and career aspirations are to provide prosperity for Aboriginal families and communities through the employment of Aboriginal Men and Women within the construction industry.

Matt Gallagher

Project Manager

Matt has a successful 15-year background of managing projects in the health, education, recreation, residential, office and retail industries.

He has a superior ability to plan, manage and deliver several projects simultaneously and strong communication skills that foster teamwork and productivity and assist in identifying, analysing and resolving challenges and providing innovative solutions to unexpected challenges. Matt proactively reviews his projects to ensure conformity to building plans and design layouts while maintaining safe and productive construction sites.

Liam Frank

Project Manager

Liam is a young Indigenous man hailing from the Hunter and Regional Aboriginal communities, who has had 4 years of experience working in the Construction Industry and has also obtained multiple recognised industry certifications.

Liam is a driven and self motivated professional who is outcome and quality focused. His core construction skills include project coordination, planning, stakeholder management, site supervision and project delivery.

Zarc Lee

Contract Administrator

Zarc has worked for more than 10 years in the construction industry, working on residential and commercial projects. After graduating with an honours in Bachelor of Business Management, he was employed as Project Manager for a property developer in Singapore, and as an Estimator at Kolder Pty Ltd in Australia.

Zarc is passionate about the construction industry and has had experience in property development, commercial fit-outs, and hotel projects.

Summer Dann

Project Engineer

Summer is a proud descendant of the Yuin Nation along the Southern Eastern Seaboard through her mother. She is connected to the Wandandian tribes through to Tomakin, Murramarang Walbunja up to the Snowy Mountains Monero Ngarigo. Summer is also a Descendant of the Wajarri and Amangu through her father.

Summer started work at BY Group as a Cadet Contract Administrator in 2019. Hardworking and eager to learn, Summer is excited about pursuing a career in the construction industry.

Christian Thomas

Project Engineer

Christian recently graduated with a Bachelor of Construction Management, and since commencing work with us has proven himself to be self-motivated and hardworking, and has already developed the ability to work autonomously assisting with running our various projects.

With strong analytical and organisational skills and attention to detail, Christian is able to communicate on all levels managing a wide range of sub-contractors to ensure all deadlines and contractual conditions are met.

James Widders-Leece

Project Engineer

James has worked within the industry for the past 9 years, with his previous positions ranging from Leading Hand, Foreman to Contracts Administrator and most recently Project Engineer. James has assisted in delivering projects ranging from residential renovations and extensions to bridge construction and infrastructure repair and maintenance.

He has a proven history in contracts administration, procurement, subcontractor engagement and management, budget management and forecasting, and possesses a strong trade based technical knowledge and understanding of plans and drawings.

Matthew Cox

Site Foreman

Matt is a descendant of the Palawa People from Tasmania, whom we recruited through our partners at Tribal Warrior. The skills Matt learnt through Tribal Warrior allow Matt to thrive in his professional role.

Since joining BY Group in 2015, he has gained extensive experience working on a range of projects. Matt takes pride in his work and brings a positive attitude to our sites each day.

Stephen Williams

Site Foreman

Stephen is a proud descendant of the Yuin Nation and grew up on the South Coast of NSW. Stephen has over 20 years’ experience working in the construction industry and has been working with BY Group since 2018 proving to be one of our hardest working on site employees.

Stephen successfully manages sub-contractors ensuring the timely delivery of high quality, safe construction work, and works closely with Site and Project Managers to pre-empt and resolve construction site issues.

Nathanial Hampton-Olive

Site Foreman

Nathanial is a proud descendant of the Yuin Nation along the Southern Eastern Seaboard with connections to the Bundjalung nation on the North Coast of NSW.

Nathanial has over 6 years’ experience in the construction Industry and is instrumental in ensuring our sites are run safely and efficiently. Nathanial is hardworking and driven and is passionate about ensuring site cleanliness and successful project delivery.