Valentín Gutiérrez
Senior Site Reliability Engineer at The Apache Software Foundation
Barcelona, Catalonia, Spain
Summary
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Rockstar🎓
Top SchoolValentín Gutiérrez is a Senior Site Reliability Engineer based in Barcelona with 15 years of experience designing and securing large-scale web infrastructure. He currently strengthens Wikimedia’s reliability and contributes as an Apache Traffic Server committer, bringing deep HTTP/SSL expertise—his open-source work includes OCSP stapling, SSL telemetry, and cipher prioritization for a widely used caching proxy. Valentín’s career blends hands-on C development, security engineering, and incident response across media, consulting, and telecoms, giving him a pragmatic threat-aware approach to SRE. Known for surfacing operational security details (for example exposing client SSL stats via APIs and Lua), he translates complex crypto and networking concerns into measurable production improvements.
15 years of coding experience
12 years of employment as a software developer
UOC (Universitat Oberta de Catalunya)
Spanish, English, Galician
Stackoverflow
1reputation
0reached
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Github Skills (12)
caching10
proxy10
c-language10
ssl10
cprogramming-language10
openssl10
security10
http9
cdn9
api8
lua8
apidoc8
Programming languages (9)
Github contributions (5)
apache/trafficserver
Mar 2019 - Oct 2020
Apache Traffic Server™ is a fast, scalable and extensible HTTP/1.1 and HTTP/2 compliant caching proxy server.
Role in this project:
Back-end Developer & Security Engineer
Back-end Developer & Security EngineerContributions:4 reviews, 39 commits, 26 PRs in 1 year 7 months
Contributions summary:Valentín primarily focused on enhancing the security and functionality of Apache Traffic Server. Their contributions include fixing documentation examples related to SSL configuration, implementing prefetched OCSP stapling responses, and enabling logging for the Elliptic Curve used in SSL connections. Furthermore, the user introduced features to expose client SSL stats via API and Lua, and incorporated functionality such as prioritizing ChaCha ciphers for improved performance.
proxy-serverproxyload-balancingreverse-proxyhttpd
wikimedia/operations-software-acme-chief
Jul 2018 - Dec 2022
Contributions:252 commits in 4 years 5 months
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