Marguerite O Sullivan

Senior Engineering & Innovation Manager

Johnson & Johnson

Marguerite O Sullivan is currently the Senior Engineering & Innovation Manager Johnson & Johnson, where she works to build organizational capability and STEM talent by leveraging her strategic abilities to influence, drive change, and effectively communicate internally and externally.

In 20 years with Johnson and Johnson, Marguerite has driven results in various supply chain roles in operations, business transformation, and engineering science & technology. Marguerite is a Credo-based leader who has grown and developed talent by creating the Engineering Leadership Development program and numerous women in STEM initiatives and her many years of working in stem outreach programs.

Marguerite also currently holds the STEM South West Cluster chair and is a previous president at network Ireland Cork in 2020.


Marguerite received her undergraduate degree from Hertfordshire University and her Masters in Nutrition from UCC, Supply Chain from DIT. When not working, Marguerite enjoys going on adventures in Nepal and traveling to the seven continents.

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