Jaime Crespo
Head Of Security at Vitalthings
Trondheim, Trøndelag, Norway
Summary
🤩
Rockstar🎓
Top SchoolJaime Crespo is Head of Security based in Trondheim with 13 years of experience building and hardening identity and security systems across academia and industry. He combines hands-on engineering—refactoring core authentication logic in the widely used SimpleSAMLphp project—with leadership roles at Vitalthings, Disruptive Technologies, and Telenor Digital. Jaime has deep expertise in federated identity (Feide, eduGAIN, REFEDS) and a track record of operating and evolving large-scale SSO and middleware platforms. He pairs a master’s in telecommunications from NTNU with practical systems engineering roots accumulated at RedIRIS and UNINETT. Known for pragmatic code simplification and improved error/session handling in authentication stacks, he bridges open-source stewardship and product security delivery. Colleagues rely on him to translate complex identity protocols into resilient, auditable production systems.
14 years of coding experience
18 years of employment as a software developer
Bachelor’s Degree Computer Science Systems Engineering, Bachelor’s Degree Computer Science Systems Engineering at Universidad Rey Juan CarlosNorwegian University of Science and Technology
Spanish, English, bokmål norwegian, Swedish, French
Github Skills (10)
authentication10
user-authentication10
php10
refactoring10
refactor10
saml10
architecture9
architectures9
debugging9
phpunit8
Programming languages (8)
Github contributions (5)
simplesamlphp/simplesamlphp
Aug 2012 - May 2020
SimpleSAMLphp is an application written in native PHP that deals with authentication.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:77 releases, 7 reviews, 1992 commits in 7 years 10 months
Contributions summary:Jaime primarily focused on refactoring and improving the core functionality of the SimpleSAMLphp authentication system. This involved migrating existing methods to new classes within the library, deprecating old functions in favor of their replacements, and streamlining the codebase by removing redundant calls and dependencies. Their work included enhancements to error reporting, the handling of session tokens, and the generation of URLs within the core framework.
authenticationnativephpsimplesamlphpphpsaml2
jaimeperez/simplesamlphp-module-selfregister
Jan 2015 - Nov 2019
Contributions:2 pushes, 6 branches in 4 years 11 months
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.