Óscar C
Responsable Técnico De Cliente, Liderando Un Equipo Dedicado at Telefónica Tech
Madrid, Community of Madrid, Spain
Summary
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RockstarÓscar C es un responsable técnico y administrador de sistemas con más de 20 años de experiencia en telecomunicaciones, actualmente liderando equipos en Telefónica Tech para garantizar la calidad, disponibilidad y rendimiento de aplicaciones y redes críticas. Experto en middleware Oracle (BPM, SOA Suite) y con sólidas capacidades en cloud-native y observability (OpenShift, Docker, Kubernetes, Elasticsearch, Kibana, Dynatrace), combina resolución de incidentes de Nivel 3 con mejora continua y transformación digital. Ha coordinado operaciones en entornos complejos para clientes como Telefónica, IBM e ING, gestionando tanto la operación diaria como la relación con proveedores y stakeholders. Además contribuye en seguridad y backend en proyectos de código abierto relacionados con CodeQL, aportando experiencia práctica en detección y mitigación de vulnerabilidades y en integración con GitHub Actions. Certificaciones como ITIL y Red Hat y su pasión por actualizarse le permiten traducir retos operativos en soluciones automatizadas y escalables.
12 years of coding experience
Github Skills (15)
data-analysis10
analyse10
csharp10
dataflow10
codeql10
dotnet-core10
security10
githubaction-workflow9
github-ci9
dotnet9
asp-net9
net9
github-advanced-security8
java7
javas7
Programming languages (10)
Github contributions (5)
github/codeql
Apr 2023 - Apr 2025
CodeQL: the libraries and queries that power security researchers around the world, as well as code scanning in GitHub Advanced Security
Role in this project:
Back-end Engineer & Security Engineer
Back-end Engineer & Security EngineerContributions:27 reviews, 30 PRs, 61 pushes in 1 year 11 months
Contributions summary:Óscar primarily contributed to the CodeQL codebase, focusing on security-related aspects. Their work involved modifying data flow configurations, particularly in C# to address security vulnerabilities. They also worked on integrating and testing Github Actions. Additionally, the user addressed issues related to cleartext storage and the appropriate use of request types.
github-advanced-securitysecurity-toolsgithub-security-labsecurity-researcherssecurity
tuenti/ButtonMenu
Jul 2014 - Feb 2015
ButtonMenu is an Android library created to build user interfaces based on buttons. This library has been implemented using Model View ViewModel pattern combined with an Android custom view that extends LinearLayout.
Contributions:27 commits, 1 PR, 7 pushes in 6 months
viewmodelandroid-uiandroid-custom-viewviewpagermodel-view-viewmodel
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