Geoffrey Mastenbroek is a Lead Engineer with 11 years of experience delivering web and app solutions across Java, C#, and full-stack development, currently leading engineering at bol. He progressed internally from software engineer to product tech lead and now lead engineer, combining hands-on coding with product-focused technical leadership. Geoffrey founded a solo software firm (Maschel ICT) where he built custom apps and web platforms, reflecting entrepreneurial instincts and end-to-end delivery experience. Comfortable in agile/SCRUM environments, he pairs pragmatic architecture with team coaching to ship reliable systems at scale. Based in Gelderland, Netherlands, he brings a practical mix of legacy enterprise skills (ASP.NET, PL/SQL) and modern platform work, often bridging backend robustness with user-facing apps.
11 years of coding experience
6 years of employment as a software developer
Computer Software Engineering, Computer Software Engineering at HU University of Applied Sciences Utrecht (Hogeschool Utrecht)
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.