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We are here to help you. Our team can support you with enrolments, career opportunities, general enquiries and more. We have two central offices, one in Perth and one in Melbourne. We also have offices in Darwin, Kununurra and Karratha.
One Tree Community Services is led by a Board of Directors and Executive team. Many of our leaders are longstanding team members. Some have been with us for more than 10 years. Together, they lead our organisation with a diverse range of knowledge and experience.
Master of Business Administration
Fellow of Chartered Institute of Management Accountants (FCMA)
David brings more than 15 years of experience as a Chief Financial Officer with various commercial organisations. He has extensive...
David brings more than 15 years of experience as a Chief Financial Officer with various commercial organisations. He has extensive experience in general and financial management, corporate governance and commercial activities.
Certificate IV Training & Education
Graduate Diploma Social Science – Counselling
Bachelor of Arts Philosophy & German Language and Literature
Diploma German
Zeljko has extensive skills and experience in family and workplace mediation and counselling. Having worked in three countries, he has...
Zeljko has extensive skills and experience in family and workplace mediation and counselling. Having worked in three countries, he has a deep understanding of cross-cultural issues. Since 2016, he has been the owner and managing director of a small, successful company.
Post Graduate Business
Member of the Australian Institute of Company Directors (MAICD)
Gordon has been a CEO in for profit and not-for-profit organisations for over 25 years. He is a former lecturer...
Gordon has been a CEO in for profit and not-for-profit organisations for over 25 years. He is a former lecturer in management studies at Edith Cowan, Curtin Graduate School of Management and Notre Dame universities and is an experienced coach and mediator.
Chartered Engineer
Bachelor of Science in Engineering
Master of Science in Engineering
Master of Business Administration
Fellow of the Institution of Engineering and Technology (London)
Richard has 40 years’ experience working in the major capital assets arena. He has extensive experience at management level in...
Richard has 40 years’ experience working in the major capital assets arena. He has extensive experience at management level in global organisations. Richard is the co-founder of a global AI business and has served on boards of international companies.
Master of Arts Human Services
Graduate Diploma in Counselling
Certificate IV in Workplace Training and Assessment
Certificate in Understanding Childhood Trauma
Certificate in Public Sector Management
Louise has spent 35 years in senior positions within the not-for-profit community services sector, and with State and Federal Government....
Louise has spent 35 years in senior positions within the not-for-profit community services sector, and with State and Federal Government. She is a founding member and convenor of the peak body Domestic Violence Action Groups of WA and a long-term member of the WACOSS Children’s Policy Advisor Council.
Bachelor of Education & Training Studies
Certificate in Training Practice: Chartered Institute of Personnel Development
ISO Certified Auditor: QMS UK
Tamsyn has over 20 years’ experience leading strategic people, culture, and governance functions. She brings a deep understanding of workforce...
Tamsyn has over 20 years’ experience leading strategic people, culture, and governance functions. She brings a deep understanding of workforce strategy, organisational transformation, risk, and stakeholder engagement, developed in Australia and internationally.
Karri began her career as a youth worker in the 1980s. Her aptitude for finding innovative solutions to social disadvantage...
Karri began her career as a youth worker in the 1980s. Her aptitude for finding innovative solutions to social disadvantage led to early opportunities in management roles.
In the 1990s, she attained a Bachelor of Arts in Training and (Organisational) Development, graduating as a member of the Golden Key Society. Continuing to work while studying, Karri held several positions in senior management or as a chief executive officer.
Karri has led One Tree from 11 childcare services in WA to a national organisation with 100+ children and community services, including a Registered Training Organisation (RTO). During this time, income has increased from $3M to $87M.
Growing up in a remote, rural town, Coral began her career as an educator in Port Hedland. Three years later,...
Growing up in a remote, rural town, Coral began her career as an educator in Port Hedland. Three years later, she took on a leadership role in a multi-functional Indigenous children’s service.
Relocating to the Goldfields in 2004, Coral worked for the local Aboriginal health service as an early year’s strategist. She undertook a research program that conducted a skills audit on the available services for families in the region.
Over the past 15 years, Coral has been instrumental in expanding One Tree’s national footprint. She oversees 50+ services across WA, NT, NSW, ACT and VIC, including the Melbourne corporate office. Her responsibilities cover contract management, quality assurance and workplace relations.
Irina began her career in public policy advocacy, followed by a focus on community and children’s services. She has held...
Irina began her career in public policy advocacy, followed by a focus on community and children’s services. She has held senior positions in the Conservation Council of WA, and the WA Council of Social Service (WACOSS), where she served as CEO.
Irina worked with representatives of the Stolen Generation to establish Reconciliation WA and continues to serve as a founding board member. She is an independent director of Gumala Investments, supporting three Pilbara-based Aboriginal language groups.
Since joining One Tree, Irina has led diverse portfolios, and now oversees 50+ services across WA, NT, QLD and NSW, including the RTO. Irina’s responsibilities include cultural practice, finance, people and culture, ICT and corporate services. In 2025, she was awarded the Medal of the Order of Australia for her service to community.
We are here to help you. Our team can support you with enrolments, career opportunities, general enquiries and more. We have two central offices, one in Perth and one in Melbourne. We also have offices in Darwin, Kununurra and Karratha.