Habilis Engineering Inc. is a Hamilton based mechanical engineering firm serving architects, building owners, community housing providers, property developers and contractors throughout southwestern Ontario. Our expertise includes a wide variety of projects and building types. Contact us for your next project


  • MEP and Fire Protection Design
  • Contract Documentation
  • Construction Administration
  • Building Energy Modelling
  • Energy Audits and Assessments
  • Feasibility Studies
  • LEED Facilitation


Our expertise is in a wide variety of building types and projects.  From large hospital renovations to laboratory additions, or new-construction multi-unit residential projects to small commercial tenant fit-outs, we have experience working with the commercial, institutional, healthcare and residential sectors in Ontario.


Marko Demarin

B.A.Sc., P. Eng., LEED AP

Marko is the founder of Habilis Engineering Inc. and has over 20 years of industry experience at some of Canada’s leading integrated engineering and architectural firms.  He was the founding engineer and Principal of the award winning mechanical engineering division of McCallum Sather Architects Inc., where he was a part owner and division leader for over 5 years. Marko is a Queen’s University Graduate and is passionate about design.

Luba Medins

Mechanical Designer

Luba is a director at Habilis Engineering Inc. She has both engineering and economics degrees from universities in the Ukraine and is an honours graduate in Sustainable Energy and Building Technology at Sheridan College. Luba has a strong interest in sustainable design and is trained in eQuest energy modelling software and is a LEED member. Luba is an expert in AutoCAD and REVIT software and has developed Habilis’ production standards.

Matt Ivancic

Dipl. Psychology
Production Manager

Matt is the production manager at Habilis Engineering Inc. where he works in both AutoCAD and REVIT production software. Formally trained as a psychologist with a psychology degree from the University of Zagreb, Matt now manages the drawing and model production operations for Habilis. When he’s not working, Matt is running ultra-marathons, most recently completing a cross-mountain 52km race in 7h17min and finishing in first place.