The Varadis Team

Our Team

The Varadis team has over 40 years experience in the fields engineering, information technology, research, science, and business. Varadis is leveraging over 30 years of Tyndall technology development in the radiation monitoring space to bring the Varadis RADFET range to global markets.

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Brad Wrigley

Chief Executive Officer

Brad is a 20+ year veteran, entrepreneur and investor with experience working within the Government, MedTech and IT industries.  Brad has worked for world-leading multinationals including consultancy firm Accenture and IT giant Dell EMC; leaving there in early 2017 as a Senior Director after working extensively within their Global Business Services and M&A verticals, and finally within EMC’s $1.2bn acquisition Virtustream.  In Feb 2017, Brad joined Marion Surgical, a Toronto HQ’d VR Surgical Simulation company, as a co-founder and COO.  In late 2018, when introduced to the RADFET technology and subsequently some of the smartest scientists in the world he embraced the opportunity to take this best in class technology to market and founded the Tyndall Institute spin-out Varadis.

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Nikola Vasovic

Chief Technical Officer

Nikola received his Master's degree in electronics from the Faculty of Electronic Engineering, University of Niš in 2008. He is working on dosimeter characterization and development of data acquisition systems for dosimetric applications. He has experience in C and C# programming, PIC Microcontrollers, dsPIC Microcontrollers, Embedded systems, VHDL programming, FPGA, PCB design, PHP and MySQL programming, WEB development/design. From 2008 to 2012 he was employed as a researcher at the EU FP7 RADDOS project at the Faculty of Electronic Engineering in Nis, and since 2012 has been with Tyndall National Institute. He is currently a senior engineer within the radiation detector team.

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Aleksandar Jaksic

Scientific Advisor & Co-Founder

Aleksandar Jaksic is a Tyndall National Institute researcher with over 25 years’ experience in the semiconductor devices and radiation dosimetry space.  He has been a key participant in the development and commercialisation of radiation detectors since 2000 for applications in medicine, space, and high-energy physics laboratories. He is a recipient of the IEEE Millennium Medal in 2000 for “outstanding contribution in the field of electron devices”. He has published more than 70 articles in refereed journals and conference proceedings.

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Dr. Russell Duane

Scientific Advisor & Co-Founder

Dr. Russell Duane is a Senior Staff Researcher at Tyndall.  He has worked on a number of research projects and has acted as a consultant in the area of semiconductor devices for a number of indigenous and multinational companies. He has been issued three U.S. patents in the area of semiconductor devices.   He is currently responsible for improving the performance of the Tyndall RADFET technology and has already significantly increased production yield and is currently investigating two novel device structures to increase sensitivity.

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Declan O’Mahoney

Business Advisor

Declan O’Mahoney is an engineer and entrepreneur with extensive international experience in technology companies. He was CEO of Firecomms (2002-2011), a compound semiconductor company (acquired by ZJY Corp China in 2010.). He was CEO of HeartSine Inc. (2012-2016) a Med Tech Defibrillation company acquired by Stryker Corporation (NYSE: SYK) in 2016. Declan is the entrepreneur in residence at Tyndall National Institute and is a Non-exec director, investor and advisor to several technology companies in IOT, Semiconductor and MedTech areas

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