Seyi began his career at Citibank Nigeria in 1992 following graduation from The University of Lagos and completion of mandatory one year national service. He qualified as a chartered accountant and then moved to Finance in Shell Nigeria in 1993. After earning his MBA from London Business School, Seyi joined Global Crossing Telecommunications as a Senior Analyst in 2001.
He joined Chiron Vaccines in Oxford, UK in 2004 as Finance Manager and was promoted to Business Planning and Analysis Manager and transferred to the Divisional HQ in Cambridge, Massachusetts in 2007 following the acquisition of Chiron by Novartis.
In 2010, Seyi joined Systagenix (now part of KCI) as Controller North America, covering the US and Canadian Operations until the company was sold to KCI. Following the sale in 2013, Seyi joined Autoliv Active Safety Division as the Controller for the Global Radar Business Unit. Seyi helped in the 2017 successful restructuring leading to moving US Radar sensors manufacturing to Canada and consolidating manufacturing operations.
In 2018 Seyi transitioned to consulting in variety of settings in life sciences, most recently helping Akcea Therapeutics, American Optics and Azurity Pharmaceuticals. He also recently enrolled on the Doctoral Program at Case Western Weatherhead School of Management.
Seyi is married to Foluke, a school teacher, and they are both active in the local Highrock church in Metro West area of Boston and together they are blessed with two adult children.