Duncan Lennox is a seasoned technology executive with extensive experience across various roles. Currently serving as Chief Product & Technology Officer at HubSpot since September 2025, Duncan previously held multiple leadership positions at Google, including VP/GM of Applied AI and Ads Privacy and Safety in Google Cloud. Additionally, Duncan served as a board member and member of the executive committee at IAB Tech Lab and has held significant roles at Amazon Web Services as General Manager, overseeing the Amazon Elastic File System. Co-founder and CEO of Qstream, Duncan also co-founded WBT Systems, where development of the TopClass e-Learning Suite took place. An early career included roles as a Senior Researcher at University College Dublin and as a Senior Software Engineer at Glanmire Electronics. Duncan holds a B.Sc. (Hons.) in Computer Science from University College Dublin.
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