David Griffiths
Founder at HereScreen Ltd
Greater Leicester Area United Kingdom
Summary
👤
Senior🎓
Top SchoolDavid Griffiths is a seasoned software founder and author with 15+ years of experience building practical cloud and mobile products, currently running HereScreen, a straightforward cloud time-and-attendance service. He combines hands-on Android expertise—contributing source code for the Head First Android book—with senior consulting experience at Black Pepper Software, delivering reliable, user-focused solutions. An O'Reilly author and instructor, David creates courses on developer tooling, AI for productivity, and business writing, translating technical knowledge into teachable practice. With a BSc in Mathematics and continuing study at Harvard Extension, he blends analytical rigor with clear communication and a knack for simplifying complex workflows. He’s pragmatic, approachable, and famously not fully operational before his tea.
15 years of coding experience
Bachelor of Science - BS, Mathematics, Bachelor of Science - BS, Mathematics at University of NottinghamCollege credits, American History (United States), College credits, American History (United States) at Harvard Extension School
Stackoverflow
33reputation
935reached
2answers
2questions
Github Skills (14)
javas10
mobile-development10
fragment10
android10
java10
sqlite9
recyclerview8
android-recyclerview8
gcc6
getopt6
integer6
linux6
enter6
jquery-mobile6
Programming languages (8)
Github contributions (5)
dogriffiths/HeadFirstAndroid
Aug 2014 - Oct 2018
Source code for the book Head First Android Development by O’Reilly Media
Role in this project:
Mobile Developer (Android)
Mobile Developer (Android)Contributions:152 commits, 196 pushes, 28 branches in 4 years 2 months
Contributions summary:David primarily contributed to the development of an Android application, working on multiple projects. They began by setting up basic application structure and UI elements, progressing through feature implementation, including sending messages, and creating database interactions. The user demonstrated a clear focus on the Android framework, and incorporated features such as stopwatches, navigation drawers, and database integration within their work. The user demonstrated a strong understanding of Android app development principles by implementing fragments and adapting the app's interface for different devices.
androidheadkotlinandroid-developmentjava
dogriffiths/jsoncompress
Oct 2015 - Aug 2018
Contributions:56 commits, 18 pushes in 2 years 10 months
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