Pablo Crespo
VP Of Cybersecurity at Cylera
Madrid, Community of Madrid, Spain
Summary
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Senior🎓
Top SchoolPablo Crespo is a seasoned cybersecurity leader with 16 years of experience, currently serving as VP of Cybersecurity at Cylera in Madrid. He combines hands-on systems programming and security engineering with executive leadership, having co-founded a security tools company and led engineering at scale across multiple departments and projects. Pablo has deep protocol and detection-engine expertise—he contributed to the widely used open-source Suricata IDS/IPS (including ASN.1 decoder, isdataat keyword and SSH app-layer work)—which informs his practical approach to high-performance security application design. His background spans incident response, forensics, WAF development, and SIEM/IDS deployments, enabling him to bridge product, engineering and operations effectively. Known for improving engineering lifecycles and cross-functional coordination, he pairs strategic vision with low-level C/C++ and Python implementation experience. Based in Madrid, he brings entrepreneurial grit and a track record of turning complex security requirements into performant, auditable solutions.
16 years of coding experience
9 years of employment as a software developer
Ingeniería Informática, Sistemas, Ingeniería Informática, Sistemas at Universidad Pontificia de Salamanca
Github Skills (9)
network-security10
c-programming10
tcp9
ips9
regular-expression9
ip9
http9
python4
devops3
Programming languages (1)
Github contributions (5)
OISF/suricata
Sep 2009 - Apr 2011
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine developed by the OISF and the Suricata community.
Role in this project:
Back-end Developer & Security Engineer
Back-end Developer & Security EngineerContributions:156 commits in 1 year 6 months
Contributions summary:Pablo primarily contributed to the development and enhancement of Suricata, a network intrusion detection and prevention system. Their work focused on implementing features related to the "isdataat" keyword and the ASN.1 decoder, which are crucial for network security analysis. They also made contributions to the SSH app layer module. Furthermore, the user added and tested various detection engine features.
git-repositorynsmipssecurityids
Cylera/rulesets
Jan 2019 - Feb 2019
Contributions:3 pushes, 1 branch in 17 days
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