Justin Cook
Software Developer, Full Stack at Bell
Toronto, Ontario, Canada
Summary
👤
Senior🎓
Top SchoolJustin Cook is a full-stack software developer with nine years of experience and a Mechatronics engineering background, currently focused on robotics and aerospace as a Master of Engineering student at U of T. He works at Bell Canada and has contributed notable security-focused backend work to the widely used WildFly application server and its Elytron subsystem, improving TLS/cipher handling, trust management, and OAuth2 client behavior. His blend of embedded/mechatronics training and web/backend experience lets him bridge hardware, control systems, and secure server software—especially in robotics and space-related applications. He has a track record of improving code quality and tests in open-source projects at Red Hat and has applied quality and process improvements in industrial settings as well. Pragmatic and organized, he’s comfortable collaborating across international teams and academic partners to translate complex requirements into robust, testable systems. An unexpected detail: alongside security engineering, he’s contributed tooling and test utilities that made certificate generation and reinitialization more reliable for large-scale server deployments.
9 years of coding experience
2 years of employment as a software developer
Bachelor’s Degree, Engineering, 3.7/4, Bachelor’s Degree, Engineering, 3.7/4 at Faculty of Engineering - McMaster UniversityHigh School, High School at North Park Secondary SchoolMaster of Engineering - MEng, Aerospace Engineering with an Emphasis in Robotics, Master of Engineering - MEng, Aerospace Engineering with an Emphasis in Robotics at University of Toronto
English
Github Skills (15)
security-protocol10
testing10
mtls10
javas10
ssl10
tls1210
keystore10
tls1310
oauth10
java10
libtls10
security10
cryptography9
wildfly9
api9
Programming languages (4)
Github contributions (5)
wildfly-security/wildfly-elytron
May 2018 - Aug 2019
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:48 commits, 25 PRs, 54 comments in 1 year 3 months
Contributions summary:Justin primarily contributed to the security aspects of the WildFly Elytron project. Their work involved implementing and refining OAuth2 client error messages, updating test suites to use certificate generation utilities, and revising the cipher suites exposed by Elytron. Additionally, the user addressed compilation issues, fixed test failures, and enhanced logging within the SSLUtils class, indicating a focus on improving security and stability.
wildflyauthorizationsecurityauthenticationelytron
wildfly/wildfly-core
Jun 2018 - May 2019
The core runtime that is used by the WildFly application server
Role in this project:Back-end Developer
Back-end DeveloperContributions:5 commits, 4 PRs, 33 comments in 10 months
Contributions summary:Justin primarily contributed to the WildFly Elytron security subsystem, making updates and enhancements. Their work focused on refactoring and improving the KeyStore and TrustManager components, including adding functionality for re-initialization and certificate handling. The user eliminated the use of a utility class and implemented new testing utilities, demonstrating a focus on code quality and testing of the security features of the application server. The commits involve Java code and modifications related to security protocols, including TLS.
wildflymavenruntimerundeckweblogic
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