David Lloyd
Senior Full Stack Engineer at SENSIZE LIMITED
East Cambridgeshire, England, United Kingdom
Summary
🤩
Rockstar🎓
Top SchoolDavid Lloyd is a Senior Full Stack Engineer with 19 years’ experience building robust desktop and backend systems, now working with C# and Azure Blazor. He began in C/C++ with MFC/Win32 and COM, expanded into .NET (WPF/WCF) and unit testing, and has evolved into a versatile engineer who leads teams and mentors peers. His open-source contributions show deep systems and JVM expertise—fixing classloading, reflection, concurrency and security issues in high-profile projects like OpenJDK, WildFly, Quarkus and Undertow. Comfortable across low-level native code and modern cloud/web stacks, he blends pragmatic engineering with a focus on code quality and performance. Based in East Cambridgeshire, he brings a rare mix of long-term legacy knowledge and active contributions to mission-critical open-source infrastructure.
19 years of coding experience
20 years of employment as a software developer
Bachelors BSc Computer Science, Bachelors BSc Computer Science at Swansea UniversityMasters (Msc (Eng)) Advanced Software Engineering / Biological Computation, Masters (Msc (Eng)) Advanced Software Engineering / Biological Computation at The University of Sheffield
Github Skills (47)
dependency-management10
reflection10
authorizations10
application-server10
jvm10
non-blocking10
multithreading10
image10
javaee10
thread-pool10
user-authentication10
authentication10
http10
resource-management10
software-quality10
Programming languages (11)
Github contributions (5)
jboss-modules/jboss-modules
Mar 2010 - Nov 2022
A Modular Classloading System
Role in this project:
Back-end Developer
Back-end DeveloperContributions:97 reviews, 1233 commits, 299 PRs in 12 years 9 months
Contributions summary:David focused on implementing core class loading logic and related utilities within the JBoss Modules project. Their contributions include adding functionality for handling dependencies and resource management. Further work focused on the implementation of the service API.
classloadingjboss-modulesjavamodularclassloader
wildfly-security/wildfly-elytron
May 2013 - Dec 2018
WildFly Elytron: Security, Authentication, and Authorization SPIs for the WildFly project
Role in this project:Back-end Developer & Security Engineer
Back-end Developer & Security EngineerContributions:829 commits, 381 PRs, 139 pushes in 5 years 7 months
Contributions summary:David implemented enhancements and fixes to the `wildfly-elytron` security framework. They addressed a bug by using recursion to undo callback actions and by allowing the identity to be reset in the same callback handler. Additionally, they fixed spelling errors and made various fields final, indicating a focus on code quality and stability within the project. Their work also involved JavaDocs and general code cleanup within the security and authorization areas.
authenticationauthorizationelytronsecuritywildfly
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