Our Consulting Team.
Trace Enterprises is led by a team that combines deep technical expertise with strong business discipline — the combination that makes a consulting firm genuinely excellent rather than just competent. Our people bring specialist knowledge across heritage, ecology and planning, built through years of fieldwork, client relationships and complex project delivery, paired with the commercial and operational discipline to see that expertise through to results. It's this team — not just a business model — that has built Trace from the ground up, earned the trust of Traditional Owners, government and industry alike, and continues to shape the culture and growth of the business across WA, the NT and nationally.
Rochelle Tonkin
Chief Executive Officer
Rochelle joined Trace Enterprises in 2021, bringing 30 years of executive-level experience to the role of Chief Executive Officer. She spent 15 of those years leading a fast-paced aviation company in NSW, overseeing the planning, coordination, and execution of large-scale helicopter operations across remote sites throughout the state. Her work included importing multi-million-dollar aircraft and international crews to support government emergency services through the summer fire seasons — operations that depended on her ability to build and maintain strong working relationships across Federal, State, and Local Government.
That background translates directly to Trace. Running complex, high-stakes operations in remote environments — with tight timeframes, multiple agencies, and no room for error — is exactly the skill set a multidisciplinary heritage and environmental consultancy needs. As CEO, Rochelle sets the direction of the business and is accountable for its performance: she leads Trace's growth strategy and commercial decisions, holds the relationships with our clients and government stakeholders, and oversees the finances and tendering that underpin all three of our service areas. She is also responsible for the culture of the team Trace has built, and for making sure the standard of work stays consistent as the company grows.
Rochelle holds a Bachelor of Business from the University of Wollongong.
Qualifications
- Aviation Security Identification Card
- Dangerous Goods Certificate
- DAMP Certified (Drug & Alcohol Management Plan)
- HUET Certified (Helicopter Underwater Escape Training)
- Fully Covid Vaccinated
- HLTAID001 Provide Cardiopulmonary Resuscitation
- HLTAID002 Provide Basic Emergency Life Support
- HLTAID003 Provide First Aid
Speciality Areas
- Management
- Business development
- Strategic planning
- Financial management
- Resource management
- Performance management
Dr. Sujan “Henk” Henkanaththegedara
Principal Consultant & Manager - Environmental
Sujan leads Trace's environmental practice as Principal Consultant and Manager. He is a field conservation ecologist by training, with more than 20 years' experience in ecology and conservation biology. His consultancy expertise spans fauna and flora surveys, targeted surveys for threatened and priority species, impact assessments on native species and ecosystems, habitat assessments, species monitoring, aquatic ecology, identification of indicator species for long-term monitoring programs, and project development and management.
Before joining Trace, Sujan built a successful academic career in the United States as a biology professor and aquatic ecologist, with a strong record of published research. He holds a PhD in Environmental & Conservation Sciences from North Dakota State University, along with post-doctoral research experience. His work has centred on the ecology, conservation, and recovery of endangered species, and the ecology and management of invasive species — with field research taking him from North American deserts to South American tropical rainforests and the dry forests of South Asia.
That fieldwork has given him deep, hands-on experience with birds, terrestrial and aquatic invertebrates, and tropical amphibians and reptiles, backed by strong skills in research design, statistical analysis, mathematical modelling, and technical writing. He remains an active researcher, contributing to collaborative projects on North American freshwater crayfish, South Asian reptiles and amphibians, and conservation policy in Ecuador and Sri Lanka.
Sujan is also a committed citizen scientist, developing and leading projects that promote environmental stewardship among young people and the wider community.
Sujan's Linkedin Profile: Click Here
Qualifications
- Ph.D. in Environmental & Conservation Sciences (USA)
- Postdoc in Conservation Biology (USA)
- Bachelor of Science (Hons) in Biogeography (Sri Lanka)
- Bachelor of Science in Zoology (Sri Lanka)
- C-Class Driver’s Licence (Western Australia)
- HLTAID009 Provide Cardiopulmonary Resuscitation
- HLTAID010 Provide Basic Emergency Life Support
- HLTAID011 Provide First Aid
- Flora Taking (Biological Assessment) Licence
- Flora Taking (Section 40) Licence
- Specialist Venomous Snake Handling Certification
- Fauna Handling Certification
- White Card (WA)
- Working with Children Check (WA)
- TLIC2025 Operate a 4WD vehicle
- SISDRV302A Drive and recover a 4WD vehicle
- Railway Industry Worker (RIW) Card
Speciality Areas
- Conservation Biology
- Aquatic Ecology
- Field Ecology
- Recovery of Endangered Species
- Invasive Species Ecology
- Project Development and Management
Nikolai Gordevich
Principal Consultant & Manager - Heritage
Nikolai is Trace's Principal Consultant & Manager for Heritage, bringing more than a decade of experience delivering heritage, land access, and stakeholder engagement services across Western Australia's mining, energy, infrastructure, and government sectors.
His career has spanned senior heritage and land access roles with both mining organisations and Native Title representative bodies — a dual perspective that's rare in the industry. He has worked closely with Traditional Owner groups, PBCs, government agencies, and project proponents to coordinate cultural heritage surveys, prepare ethnographic reports, manage heritage compliance, negotiate land access outcomes, and support culturally informed decision-making.
Nikolai's expertise covers heritage survey planning and coordination, Aboriginal heritage legislation, Native Title processes, Cultural Heritage Management Plans, stakeholder engagement, and project risk management. He has contributed to major mining, renewable energy, and infrastructure projects across Western Australia and Queensland, and understands heritage management across the full project lifecycle — from early exploration and approvals through to operations, rehabilitation, and mine closure.
He holds a Bachelor of Arts in Archaeology and Anthropology from the University of Sydney, a Diploma of Education, and a Diploma of Science in Land Rehabilitation — a combination that underpins his ability to communicate across diverse stakeholder groups, facilitate genuine consultation, and deliver heritage advice grounded in both technical expertise and cultural understanding. His focus is always on respectful, collaborative, and practical outcomes that balance cultural values with responsible development.
Qualifications
- Graduate Certificate of Archaeology (in Progress)
- Bachelor of Anthropology with minor in Archaeology
- Diploma of Education
- Diploma of Science (LandRehabilitation)
- HLTAID009 Provide CardiopulmonaryResuscitation
- HLTAID011 Provide First Aid
- RIIVEH305F Operate and Maintain a 4WD Vehicle
Speciality Areas
- Anthropology
- Social Surrounds
- Native Title Research
- Aboriginal Archaeology
- Cultural Heritage Management
- Community Engagement
Cane Spaseski
Principal Consultant & Manager - Planning
Cane is a qualified town planner and project manager with more than 30 years' experience across land use planning, subdivision, policy development, transport, infrastructure, sustainability, and research. His career has spanned the development of industry plans, policies, and strategies, alongside the management of complex projects through to implementation.
What sets Cane apart is his deep working knowledge of government processes. Having spent decades navigating both strategic and statutory planning frameworks, he understands exactly what decision-makers need to see — and how to move an application or proposal through the system efficiently. For clients, that means planning advice grounded not just in what the regulations say, but in how approvals actually get done.
At Trace Planning, Cane works with landowners, developers, and businesses on development applications, subdivisions, rezoning, and strategic planning matters, bringing the same rigour to a single-lot subdivision as to a regional strategy. He is driven by a genuine commitment to good planning outcomes — communities that are safe, sustainable, and well-designed, where development responds to real community needs rather than working against them.
Qualifications
- Bachelor of Arts in Urban and Regional Studies.
- Graduate Diploma in Urban and Regional Planning.
- White Card, Occupational Health and Safety - Construction Induction.
- Main Roads, Traffic Management Accreditation - Traffic Controller and Management.
- C-Class Drivers Licence (WA).
Speciality Areas
- Due diligence investigation and town planning advice.
- Regional planning and economic development advice.
- Research, planning analysis and policy development.
- Advocacy, Place management and urban renewal.
- Public consultation, public submissions preparations and analysis.
- Planning approvals advice for schemes, subdivision & development.
- Project management and administration.
Memberships
- Corporate Member of the Planning Institute Australia (PIA).
- Member of Wanneroo Business Association (WBA).
Braden Miller
Project Officer - Heritage
Braden brings over two decades of research, teaching, and curatorial experience to his work in heritage and archaeology.
He completed his Master of Professional Archaeology at the University of Western Australia in 2017. His thesis focused on the location and documentation of the material remains of the 6-inch guns at the Second World War-era coastal artillery battery at Bickley Point, Rottnest Island, combining archival research with fieldwork to reconstruct the site's wartime history. Following his postgraduate studies, Braden served as a curatorial assistant at the Australian Army Museum of Western Australia from 2017 to 2022, where he contributed to the care, interpretation, and presentation of military heritage collections.
Before transitioning into archaeology, Braden built an extensive career in education, teaching English at Curtin University of Technology, the University of Western Australia, and the State University of New York. This background gives him a strong foundation in research communication, critical analysis, and the ability to translate complex technical findings into clear, accessible reporting — skills he now applies directly to heritage assessment and stakeholder engagement.
Braden holds a Bachelor of Arts, majoring in History and English (2003), a Certificate of English Language Teaching to Adults (2006), and a Graduate Diploma in Communications (2012). Together, his academic training and professional experience across archaeology, museum curation, and education equip him with a well-rounded, detail-oriented approach to heritage investigation and documentation.
Qualifications
- Master of Professional Archaeology
- Graduate Diploma in Communications
- Bachelor of Arts
- CELTA (Cambridge)
- HLTAID009 Provide Cardiopulmonary Resuscitation
- HLTAID010 Provide Basic Emergency Life Support
- HLTAID011 Provide First Aid
- RIIVEH305F Operate and Maintain a 4WD Vehicle
- RIIVEH201E Operate a Light Vehicle
Speciality Areas
- Historical Archaeology
- Aboriginal Archaeology
- Heritage Management
- Collections Management
- Research
Olga Nazarova
Project Officer - Botany
Olga is a botanist with more than a decade of experience spanning environmental consulting, the Western Australian Herbarium, and local government. She specialises in flora identification and applied taxonomy, underpinned by a deep understanding of plant biology, physiology, and ecology — the kind of expertise that comes from working with WA's flora at the state's foremost botanical institution.
Olga has delivered flora and vegetation services across multiple WA bioregions, including targeted surveys for Priority and Threatened species, detailed site and vegetation assessments, and rigorous sampling and data collection. What sets her apart is what happens after the fieldwork: she is highly skilled in statistical analysis, data interpretation, vegetation mapping, and spatial investigation, turning field data into robust, defensible ecological reporting.
Her taxonomic credentials are the real thing. Olga co-authored the formal description of Convolvulus pyrophilus, a post-fire ephemeral species, and contributed to an updated key to WA's Convolvulus species — both published in Nuytsia, the state's botanical journal. She remains active in taxonomic research, including current work on Gastrolobium phrase names.
Olga holds a Bachelor of Science in Botany & Genetics from the University of Western Australia and a Diploma of Conservation and Land Management. Her earlier career as an engineer with Kazakhstan's national electricity grid operator instilled the structured planning, disciplined documentation, and cross-team coordination that now shape her methodical approach to project work.
Known for her attention to detail, safety-first field practices, and calm reliability in remote environments, Olga is also an experienced mentor to team members and volunteers, and a natural collaborator within multidisciplinary project teams.
Qualifications
- BSc (Botany & Genetics), University of Western Australia
- Diploma of Conservation and Land Management, Polytechnic West
- Automation Engineer, Rudny Industrial University (Kazakhstan)
- Flora Taking (Biological Assessment) Licence
- Flora Taking (Section 40) Licence
- C Class Driver’s Licence; 4WD and Driver Training
- HLTAID009 Provide Cardiopulmonary Resuscitation
- HLTAID010 Provide Basic Emergency Life Support
- HLTAID011 Provide First Aid
Speciality Areas
- Flora identification and applied taxonomy
- Flora, vegetation and targeted surveys
- Rehabilitation monitoring and reporting
- Statistical analysis, interpretation and reporting
- Vegetation mapping and spatial investigations
Publications & Taxonomic Contributions
- Nazarova, O. & Hislop, M.(2021). Convolvulus pyrophilus (Convolvulaceae), a new post-fire ephemeral species, with an updated key to WA Convolvulus species. Nuytsia,32.
- Ongoing taxonomic research on Gastrolobium phrase names
Awards & Memberships
- Vocational Student of the Year nominee, Polytechnic West Annual Awards (2012)
- Golden Key International Honour Society — Member ID #16731082
Anthony Smit
Senior Associate - Ecology
Anthony is an environmental scientist with a Bachelor of Science in Environmental Biology and Honours in Environment and Agriculture, where his research focused on native mammal behaviour. He brings a strong foundation in ecological restoration, environmental compliance, and data analysis, with early-career experience advancing habitat restoration projects and conducting ecological research to support sustainable land management across Western Australia.
His hands-on experience with fauna runs deep — including the handling of native mammals, birds, and reptiles through extensive volunteer conservation work. Anthony is also a proficient GIS analyst, having delivered spatial products in both environmental consulting and Defence settings, giving Trace's ecological reporting a strong mapping and spatial analysis capability.
Before moving into the environmental sector, Anthony served five years as a Reconnaissance Soldier in the Australian Defence Force. It's a background that translates remarkably well to ecological fieldwork: operating self-sufficiently in remote terrain, navigating difficult country, maintaining precision under pressure, and getting the job done safely regardless of conditions. Few consultants arrive on a remote survey site better prepared.
Anthony combines that operational discipline with genuine scientific rigour, bringing a practical, solution-focused approach to every project — from fauna surveys and habitat assessments to spatial analysis and compliance reporting.
Qualifications
- Bachelor of Science (Hons) Environment and Agriculture.
- Bachelor of Science - Environmental Biology.
- C-class Driver’s License (Western Australia)
- Work Health and Safety Construction Card (White Card)
- Flora Taking (Biological Assessment) Licence
- Flora Taking (Section 40) Licence
- Fauna Handling
Speciality Areas
- Flora and fauna surveys
- Data analysis
- GIS analysis
- Black Cockatoo habitat assessments
Emily Sutherland
Associate - Heritage
Emily brings a powerful combination of skills to Trace: formal training in cultural anthropology, proven experience in community engagement, and a professional background managing complex cultural projects. She holds a Bachelor of Arts in Cultural Anthropology from the Australian National University, where she specialised in First Nations art history, and is completing a Master of Social and Public Policy at Macquarie University, focused on evaluating service delivery to culturally and linguistically diverse communities.
Her work is grounded in ethical site management, meaningful stakeholder engagement, and inclusive policy development. Across roles in local government and the non-profit sector, Emily has delivered heritage assessments, heritage reporting, public consultation programs, and service evaluation in multicultural settings — expertise that sits at the heart of Trace's heritage practice, where genuine consultation and cultural understanding drive project outcomes.
Emily's earlier career in the arts saw her supporting Australian artists and coordinating international art fairs, sharpening her skills in strategic planning, community outreach, and curatorial logistics. Managing high-profile events, diverse stakeholders, and culturally significant material has given her a rare fluency in working at the intersection of culture, community, and delivery — exactly where heritage consulting lives.
Qualifications
- Master of Public and Social Policy (Due for Completion end of 2026)
- Bachelor of Arts in Anthropology
- HLTAID009 Provide Cardiopulmonary Resuscitation
- HLTAID010 Provide Basic Emergency Life Support
- HLTAID011 Provide First Aid
- RIIVEH305F Operate and Maintain a 4WD Vehicle
- RIIVEH201E Operate a Light Vehicle
Speciality Areas
- Anthropology
- First Nations Art Histories
- Cultural Heritage
- Policy Evaluation and Program Design
- Public History and Place-Based Storytelling
- Social Impact and Surrounds
- CLAD (Culturally and Linguistically Diverse) Service Delivery Analysis
- Social Research Methodologies
Emily Maddocks
Associate - Heritage
Emily is an archaeologist with training in both archaeology and ancient history, and field experience spanning historic and Aboriginal cultural heritage. She holds a Bachelor of Arts in Archaeology and Ancient History, with a research focus on archaeobotany — specifically the application of plants in cultural medicine, and what the archaeological record reveals about the long relationship between people, plants, and healing practice.
Her fieldwork covers archaeological survey and excavation, artefact recording and cataloguing, and the management of archaeological assemblages, delivered across sites in Australia and internationally. Working across varied environmental and cultural contexts has given her a practical grasp of site recording and heritage documentation — and, just as importantly, an understanding of how method has to adapt to the conditions actually on the ground.
Assemblage management and cataloguing are exacting, unglamorous work, the kind where small inconsistencies compound into unusable data years later. Emily's strength is the discipline that work demands: systematic recording, clean documentation, and material that stands up to scrutiny long after the trench is backfilled. It's a capability that underpins everything Trace produces in heritage reporting.
Emily works closely with multidisciplinary project teams and Traditional Owners to ensure cultural values are recognised properly through the planning and assessment process, rather than treated as a compliance step. As an early-career consultant, she is building her practice deliberately — extending her technical skills while contributing to projects that balance heritage conservation with responsible development.
Qualifications
- Bachelor of Arts in Archaeology and Ancient History
- HLTAID011- Provide First Aid
- HLTAID010- Provide Basic Emergency Life Support
- HLTAID009- Provide cardiopulmonary Resuscitation
- RIIVEH201E- Operate a Light vehicle
- RIIVEH305F- Operate and maintain a Four Wheel Drive Vehicle
- TLIC1051- Operate commercial vehicle
Speciality Areas
- Historical archaeology
- Aboriginal archaeology
- Archaeological survey and excavation
- Artefact analysis and cataloguing
- Assemblage and collections management
- Archaeobotany
Danée Muzlera
Associate - Ecology
Danée is an early career ecologist with a Bachelor of Science, majoring in Marine Biology and Conservation & Wildlife Biology. She has a strong passion for biodiversity conservation and enjoys contributing to projects that support the sustainable management of Australia's unique environments. As an Ecologist at Trace Enterprises, Danée is involved in terrestrial ecological surveys, flora and fauna assessments, vegetation community mapping, threatened species surveys, environmental monitoring, and plant identification. She also has experience using GIS and mapping software to support environmental assessments.
She has also volunteered in wildlife rehabilitation handling birds, small mammals and reptiles. And marine turtle conservation projects, further strengthening her practical field skills and commitment to conservation.
Danée enjoys working collaboratively within multidisciplinary teams and is passionate about applying scientific knowledge to deliver practical environmental solutions. She brings enthusiasm, attention to detail, and a proactive approach to every project, and is committed to continually developing her skills as an ecologist while contributing to positive environmental outcomes.
Qualifications
- Bachelor of Science in Marine Biology, Conservation & Wildlife Biology.
- SSI Rescue and Master Diving Certificate.
- HLTAID011- Provide First Aid.
- HLTAID010- Provide Basic Emergency Life Support.
- HLTAID009- Provide cardiopulmonary Resuscitation.
- RIIVEH201E- Operate a Light vehicle.
- RIIVEH305F- Operate and maintain a Four-Wheel Drive Vehicle.
- TLIC1051- Operate commercial vehicle.
Speciality Areas
- Fauna.
- Ecological Survey.
- Data processing/statistical analysis.
- Population estimation.
Want to work with this team?
Get in touch today to discuss your project with one of our specialists — no obligation.

