The PolyML Team

Chief Scientist

Dr. Gaston Gonnet

About me

Dr. Gaston H. Gonnet is a distinguished Uruguayan–Canadian–Swiss computer scientist andentrepreneur. He co-founded Waterloo’s Symbolic Computation Group and Waterloo Maple Inc. 1984, he spearheaded the New Oxford English Dictionary project at Waterloo, producing the first searchable electronic edition and subsequently establishing OpenText Corporation, where he was co-founder and served as board chair until 1994. A professor emeritus at ETH Zurich, Gonnet also developed the Darwin programming language for biosciences, which evolved into the OMA ontology database. Gonnet holds a Doctorate Honoris Causa degree in recognition of his influential contributions to both computer science and digital humanities.

Experience
  • Oxford English Dictionary Online | Co-Founder
  • Maple Computer Algebra System | Co-Founder
  • Symbolic Computation Group – University of Waterloo | Co-Founder

CEO

Mardi Witzel

About me

Mardi spent her early career with NCR Corporation, holding divisional management roles in product management and marketing. She is recognized as an expert in the field of AI Governance, previously having served as a member of the Province of Ontario’s Expert Working Group for a Trustworthy AI Framework.

Mardi is currently serving a third term as a Public Representative on the Chartered Professional Accountants Ontario (CPA Ontario) Council. She holds a degree in Political Studies from Queen’s University and an MBA from Wilfrid Laurier University.

Experience
  • 20 years of board and strategic direction and governance
  • CPA Ontario | Public Representative
  • At vero eos et accusamus

CTO

Tim Snider

About me

With an MSc in Computer Science from McMaster University, Tim has spent decades at the forefront of computing innovation. Early in his career, he co-founded Innovus, a pioneering biotech software company. He later contributed to the New Oxford English Dictionary project at the University of Waterloo, a collaboration that seeded the formation of OpenText.

Continuing his focus on scalable data systems, Tim co-developed JoinT technology, one of the earliest column-oriented databases for analytical queries. His work

Experience
  • Oxford English Dictionary Online | Co-Founder
  • Open Text Corporation | Developer
  • Ceeqit and Porfiau | Developer

VP Development

John Stewart

About me

John graduated with a Bachelor of Mathematics from the University of Waterloo in 2008.

Since then, he has worked with Tim Snider and Gaston Gonnet on a variety of projects before joining PolyML in 2018. John has over 15 years of experience delivering enterprise-ready software solutions to clients in Banking, Insurance, and Manufacturing, covering data integration, data asset pipelines, and data analytics tools and processes.

Skills
  • Architecting software solutions to real world business problems
  • Developing client-focused data-centric applications
  • Deploying successful projects

Data Scientist

Chris Bobotsis

About me

Chris holds a Master of Mathematics in Data Science Degree from the University of Waterloo and a Bachelor of Applied Science and Engineering (Mechanical Engineering) degree from the University of Toronto.

He has past experience working in startups in the data science and artificial intelligence field and is an officer in the Royal Canadian Navy Reserve.

Skills
  • Leveraging Machine Learning models to provide predictive performance
  • Productionizing Machine Learning Solutions
  • Designing Scalable Software

Dr. Gaston Gonnet

Chief Data Scientist

Mardi Witzel

Chief Executive Officer

Tim Snider

Chief Technology Officer

John Stewart

VP Development

Chris Bobotsis

Data Scientist