Our Team

Meet the Criterium-Jansen Engineers

Our Criterium-Jansen team is dedicated to enhancing peoples’ lives through improved understanding and performance of the buildings in which they work and live.

Committed to being the leading provider of investigative and diagnostic engineering services for commercial, residential, and condo buildings, our enthusiastic and talented team looks forward to working with you.

Get to know our engineering and management teams below:

Henry Jansen
President, Owner, Professional Engineer

Henry J. Jansen, P.Eng., ACCI is president and owner of Criterium-Jansen Engineers. Henry started his office in 2007.

“There are 2 things that people will always need: food and shelter. Criterium-Jansen Engineers is in the shelter business.”

Henry graduated from McMaster University in 1992 and earned his P.Eng. license in 1994. He has always been a design engineer helping to solve problems. Engineering is applied science. Engineers use theory and then apply practical knowledge to develop solutions. As his career moved to business ownership, he partnered with Criterium Engineers as one of the building engineering leaders in North America.

Henry loves to help clients with their building needs and has developed strong industry leaders to meet the demands of our residential, commercial, and condominium clients. Criterium-Jansen Engineers is a family team.

Henry is currently on the Board of Directors for CCI-Toronto and Greater Dufferin Home Builders Association, is a proud member of the ACMO Associates Committee and Guelph and District Home Builders Association, and is a contributor to the PEO Performance Audit and Reserve Fund Committee. Henry also chairs the Annual Industry Luncheon for Greater Dufferin.

In his spare time, Henry enjoys spending time with family, renovating his home, and camping.

Marilyn Jansen
Office Manager

Marilyn Jansen has been with Criterium-Jansen Engineers since it was founded in 2007.  As the Office Manager, Marilyn organizes and coordinates the office operations and procedures in order to ensure organizational effectiveness and efficiency.

Marilyn takes care of finances and accounting, marketing, arranges for networking events/conferences, explores new venues for advertising the firm’s services and expertise, ensures proper organization and communication, and ensures that the overall office environment is running smoothly.

“Criterium-Jansen Engineers is a like a family – we work together, we support each other, we laugh together!  We are a group of people who want to work and partner with our clients to help them answer the tough questions and make sound decisions.”

Marilyn likes to read, go camping, and bake (not in that order)!

Suja John
Professional Engineer

Suja John, P.Eng.  has been a part of the Criterium – Jansen Engineers team for 2 years. Being a Structural Engineer allows her to fully focus on her specialty as she assists clients with multiple structural queries in the buildings she inspects.

Suja loves being part of the team that makes up Criterium – Jansen Engineers where we are able to bounce ideas off each other and work together to meet deadlines.  She really enjoys the variety of work as it challenges her.

Fun thing to note about Suja is that she lived and worked in Singapore and the Middle East before making Canada home several years ago.  Once in Canada, she worked with another consultancy and in the steel industry before joining Criterium – Jansen Engineers.

Jim Rammos
Professional Engineer

Jim graduated from Ryerson University in 1991 and from the University of Toronto in 1993, and earned his P.Eng. license in 1995. Jim is a Senior Building Science Engineer and has 25 years of work experience in building science, thermographic scanning, mechanical and electrical engineering, new and restoration construction, and related environments. He possesses skills that give clients a sound understanding of all aspects of the building science umbrella, including building envelope investigations and assessments, reserve fund studies, mechanical and electrical systems design and assessments, due diligence, and building evaluation for real estate transactions.

Jim is a Certified Thermographer, a member of OACHI (Ontario Association of Certified Home Inspectors) and has his BCIN.

In his spare time, Jim is a hockey coach for a local team, he enjoys spending time with family, classic car restoration, and camping.

Michael Aresta

Michael (Mike) Aresta has been with Criterium-Jansen Engineers for over two years. His specialty is in structural design – focusing on specialized engineering and construction techniques to provide outstanding solutions and projects. Mike has the ability to quickly address and resolve issues and keep the project moving.

Mike has always had a fascination for buildings, and Criterium-Jansen Engineers is a company whose specialty is buildings. As a result, Criterium-Jansen Engineers has allowed him to pursue his passion and given him a great opportunity to start his engineering career on the right foot!

Now here’s something not everyone can do – Mike can bench-press 260 pounds!! Hmmm…how many 2×4’s is that?

Liana Di Ilio

Liana Di Ilio is a recent addition to the Criterium Jansen Team. She graduated from Environmental Engineering at Carleton University in February of 2019. Liana is able to bring her environmental background to various projects and is excited to develop her structural knowledge.

She has a keen interest in residential and commercial buildings after her 4th year project designing a tiny house, as well as attending a tour with a local home builder in Ottawa. Liana enjoys being part of the team at Criterium – Jansen where everyone is friendly and eager to help one another.

Outside of work, Liana plays soccer and volleyball up to three times a week, and can otherwise be found spending time with her family or cooking with her Nonna.

Mike Coleman
Architectural Technician

Mike Coleman has been with Criterium-Jansen Engineers since April 2018. Mike has always been passionate about the building trade and expanded his skills by obtaining an Architectural Technician Diploma from Sheridan College. Mike’s background includes being a carpenter working within the residential construction industry as well as Architectural Design while working for an Architect.

Mike loves to stay current on building science as it constantly evolves and uses that knowledge to help clients achieve a quality solution for their design requirements. Having a keen eye and a sharp attention to detail help create innovative and flexible solutions.

On a personal note, Mike is passionate about nature and the environment and loves to escape into cottage country when possible.

Tammy Hoving
Administrative Assistant

Tammy joined Criterium-Jansen Engineers in August 2016 as the administrative assistant support for the engineers and clients. A variety of tasks include communicating with the clients, recording job information, filing, editing and printing projects for clients.

She loves working at Criterium-Jansen Engineers because of the fun, friendly, family-like atmosphere.

Some fun facts about her is in her spare time she likes playing Candy Crush and Soda Crush and she loves going to the theatre to watch movies with her kids (especially Marvel movies!).

Contact Criterium-Jansen

To learn more about the Criterium-Jansen team, please visit our Qualifications page or contact us today at 1-888-940-0571.