Michael Barnwell
VP Of Engineering at Sentry Interactive
London, England, United Kingdom
Summary
👤
Senior🎓
Top SchoolMichael Barnwell is a senior engineering leader with 11 years of experience building scalable SaaS, IoT and security-focused systems, currently serving as VP of Engineering at Sentry Interactive. He co-founded and served as CTO of Doordeck, where he led the technical vision for smartphone-based physical access control, blending embedded, cloud and mobile engineering. His background spans founding consultancy work, high-throughput distributed backends, and hands-on roles in Kotlin, Java, C++ and Python across startups and enterprise products. Known for turning complex operations and security requirements into pragmatic, auditable systems, he combines product-minded leadership with deep implementation experience. Based in London, he brings entrepreneurial grit and a track record of shipping mission-critical infrastructure from prototype to production.
11 years of coding experience
15 years of employment as a software developer
BTEC National Diploma IT Practitioners (System Support), BTEC National Diploma IT Practitioners (System Support) at Epping Forest CollegeBachelor’s Degree Computer Science, Bachelor’s Degree Computer Science at University of Kent
Stackoverflow
734reputation
116kreached
17answers
0questions
Github Skills (75)
authentication9
websocket7
sdk7
websocket-client7
openpgp7
java7
crypto6
proxy6
digital-signature6
option-type6
google-places6
high-performance6
heroku6
jackson6
yaml6
Programming languages (9)
Github contributions (5)
mpbarnwell/tlstest
Jan 2017 - Oct 2022
Contributions:1 PR, 5 pushes, 2 branches in 5 years 9 months
mpbarnwell/mqtt-websocket-java
Feb 2016 - Oct 2022
MQTT over WebSocket library for Java with Paho and Jetty
Contributions:2 PRs, 3 pushes, 2 branches in 6 years 9 months
pahomqttwebsocketjettyjava
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