Henry Mortimer
Brighton, England, United Kingdom
Summary
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SeniorHenry Mortimer is a Senior Software Engineer with 11 years of hands-on experience building secure, networked systems and web applications, currently working at Neo4j after roles in cloud-native security and information security at ControlPlane and American Express. A UCL Computer Science graduate, he blends full-stack development experience—React, Django, Node—with deep practical security work from penetration testing to cloud security tooling. Henry has a demonstrated curiosity across compilers, hardware tinkering and low-level mobile tooling, evidenced by early projects like an Objective-C mobile-forensics prototype and a front-end/back-end architecture role on the UCL API. Based in Brighton, he favors pragmatic engineering that balances usability and security, and maintains an active online presence through his GitHub and personal site.
11 years of coding experience
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (56)
linux10
mutation10
nix9
python9
security9
django9
validation9
gatekeeper9
api9
react9
operator9
oracle9
cloud-control8
rest-api8
banking8
Programming languages (10)
Github contributions (5)
hennersz/advent-of-code
Dec 2020 - May 2026
Contributions:7 pushes, 1 branch in 5 years 6 months
hennersz/particles
Mar 2019 - Jul 2026
playing with particles and js canvas
Contributions:25 PRs, 34 pushes, 24 branches in 7 years 4 months
particlescanvasjavascriptplayingcanvas-js
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