Our Vestech Management and Technical teams have a well deserved reputation for driving Medical Device Innovation. They bring a wealth of experience and a deep understanding of the industry to each project.

You can contact team members directly using the form on this page.


Dr Greg Roger, FIEAust
Vestech CEO & Founder

Dr Greg Roger was selected by the Federal Government to spearhead Medical Device commercialization in Australia. His broad industry, regulatory, engineering and medical experience made him the stand out candidate for the role. He has more than 30 years experience in the field of medicine, bio-medical engineering, product development and commercialisation. Having developed, patented and commercialised medical devices, Dr Roger is familiar with the key issues of this industry for individuals through to larger corporations. ... read more

Dr Jari Hyvarinen
General Manager

Dr Jari Hyvarinen is a General Manager with over 20 years of experience in medical device design and manufacturing. Jari has experience in management of operations within a manufacturing environment, of pre-clinical and clinical trials, and of suppliers. Additionally, he also has experience in leading multidisciplinary R&D teams, implementing design controls, and regulatory submissions for Australia, Europe, and FDA. He has successfully led numerous medical device projects from concept to marketing approval. Jari has a Bachelor’s Degree in Materials Engineering, PhD in Biomedical Engineering, and MBA (Technology).

Angela Roche
QA/RA Manager

Angela Roche is a Quality Engineering professional with over 13 years experience in the medical device industry including high risk active implantable devices, life sustaining medical devices, combination devices, and in-vitro diagnostics (IVD). She holds a Degree in Production Engineering, a Bachelor’s degree in Manufacturing Engineering, and Post Graduate Diploma in Science. Angela has held roles in leading teams in New Product Introduction, Quality Systems Management, Project Management, Supplier Quality Development, and Quality Operations. She is driven to implement risk management, continuous improvement initiatives, and change management. Angela has provided tools and methods necessary to achieve flexibility and innovation across a number of organisations, such as Covidien, Boston Scientific, CareFusion, Cochlear, and ResMed.

Brett Slater
Design Manager

Since 2003, Brett Slater has encompassed all facets of product design and engineering within various industries, such as medical devices and fibre optic telecommunications. With this wide scope to experience, Brett has gained solid design and manufacturing knowledge coupled with lean project management that can help you every step of the way. Earning over 20 US patents to date, Brett’s thrive for being inventive will help you commercially create and protect your idea. It is this engineering, management, and innovation mindset that Brett brings to Vestech that will allow your medical device concept to become a viable reality.


Galen Nethery
Design Engineer

Galen Nethery is a Design Engineer and Scientist at Vestech. His role includes the development of design specifications, research, and management of vendors. Galen has studied Biomedical Engineering and Science at the University of Sydney, gaining technical experience and developing skills in risk assessment and mitigation through his choice of study. Galen has experience across the medical device industry in both design and manufacture of novel devices, equipping him with insight into product development and the necessity of design for manufacture.

Miho McKay
Design Assurance and Regulatory Associate

Miho McKay is a Design Assurance and Regulatory Affairs Associate at Vestech. She utilises her strong attention to detail to ensure the highest standard in all her work. Miho is a graduate of the University of Sydney having acquired a double degree in Bachelors of Engineering (Biomedical Engineering), for which she was awarded First Class Honours, and a Bachelor of Arts majoring in Japanese. Miho has 2 years of experience previously working in a biomedical engineering start-up, which involved her project managing the research, design, and development of a novel device. This experience awarded her with insight into the realities of start-ups in the medical device industry and the importance of a stringent Quality Management System.

Daryl Fong
Electrical Design Engineer

Daryl Fong is an electrical design engineer at Vestech. He is also currently a PhD student working on the development of a portable electroencephalograph system for the diagnosis of concussion. Daryl’s background is in biomedical engineering, specifically electrical medical devices. Daryl previously worked as a researcher for the charity Necksafe and a biomedical technician at St George Hospital. Daryl brings upon his experience with electronics and digital signal processing to develop medical devices.

Gisah Bittencourt Sad
Regulatory Affairs Specialist

Regulatory Affairs professional with over 6 years’ experience in the medical device industry including implantable devices and IVD.  Gisah holds a degree in Pharmacy, Biochemistry and Industrial Pharmacy and has Post Graduate Specialization in Project Management. Gisah has been a leader of medical devices submission processes within a number of different regulatory jurisdictions across U.S., European Union, Brazil and more recently in Australia. With a passion for continuous improvement, Gisah’s attention to detail has driven numerous successful medical device regulatory approvals.

Oliver Wang
Quality Engineer

Oliver is the Quality Assurance Engineer at Vestech, and has acquired a wealth of Quality Management System experience from navigating Vestech to a successful ISO 13485:2016 transition audit. Oliver Wang is a multiple Dean’s Award recipient who has graduated with a Masters of Biomedical Engineering and a Bachelors of Mechanical Engineering from UNSW with First Class Honours. Oliver has experience working in biomedical research with UNSW’s Taste of Research Scholarship, as well as industrial experience working as a New Product Introduction (NPI) Engineer in Cochlear.


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