John Masterson is the Chief Executive Officer of ag-Grid, where they shape global strategy, drive growth, and lead a team to push the boundaries of innovation in a developer-first culture. They oversee ag-Grid’s efforts to accelerate growth, enhance products, and maintain a market-leading position in JavaScript enterprise development tools. Prior to this role, they served as Chief Technology Officer at ImproveWell from 2018 to 2024. Their earlier experience includes COO at ag-Grid in 2018, Group Technical Analyst at CRH (2003–2008), and Database Developer at Paul Grogan and Associates (1998–2001). Additionally, at JobReady Solutions they held roles including General Manager | Senior Product Manager (2014–2016), Developer & Product Owner, and Business Unit Manager | Product Manager.
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