Known by Devoxxians of old as the Diabolical DeveloperI'm the Principal Software Engineering Group Manager for Java, Golang, and Python at Microsoft. Previously I was the co-founder and CEO at jClarity, which was acquired by Microsoft in August 2019. I am also a mentor at Creative HQ, New Zealand's leading start-up Incubator and the Executive Coach for the C-level suite at Mindstone (mindstone.com).Formerly I was the Director of the London Java Community (~8000 members) where I co-founded what is now Eclipse Adoptium (adoptium.net), the worlds 2nd largest distributor of OpenJDK binaries. I was also the co-leader of the London CTO's network.I have over 25 years of experience as a technology professional, open-source software (F/OSS), board member and strategic advisor for startup, fintech, investment banking, insurance, Internet payment, and Cloud SaaS sectors.You can also find me presenting keynotes and talks at major conferences (Oracle Openworld, Devoxx, OSCON, JAX, etc) on topics such as business strategy, leadership, organisational behaviour, management, team optimization and technical subjects around Agile, Java and Software Development.My main passion is building and facilitating teams by focusing on social and technical infrastructure. This includes setting an empathetic culture, ensuring transparent communication, mentoring engineering managers, installing a shared vision on the product, and driving execution. Seeing teams of smart, creative people rapidly develop high quality software makes me happy!My other focus is technical community leadership and contributing to F/OSS. In 2012 I was added as one of the ~350 existing Java Champions for services rendered to the Java ecosystem.My first book "The Well-Grounded Java Developer" with Ben Evans was published by Manning in June 2012 with the 2nd edition released in 2023.Outside of work I'm a voracious traveller and love to meet interesting new people in unusual places!