Sebastian Sejzer
Cybersecurity Advisor At Anthropic DevSecOps & Security Engineering at Magma Devs
Israel
Summary
👤
Senior🎓
Top SchoolSebastian Sejzer is a cybersecurity and DevSecOps leader with a decade of professional experience building resilient infrastructure and security automation across finance, consumer, and AI sectors. Currently advising Anthropic on DevSecOps and leading DevOps at Magma Devs, he previously drove security automation at UBS and led systems engineering at MyHeritage, demonstrating an ability to translate threat models into operational tooling. His background spans hands-on systems engineering, infrastructure, crypto/blockchain experiments and AI safety considerations, informed by early technical training and Citrix certification. Colleagues describe him as a pragmatic engineer who bridges deep technical detail with team leadership, often surfacing practical mitigations that are easy to audit and deploy. Based in Israel, he combines enterprise-grade rigor with startup agility, frequently bringing low-level systems insight to high-level security strategy.
10 years of coding experience
11 years of employment as a software developer
CCA – Citrix Certified Administrator (1Y0-218), CCA – Citrix Certified Administrator (1Y0-218) at PrometricTecnico, Tecnico at Escuela Tecnica ORT
Hebrew, Spanish, English
Github Skills (31)
ids8
ossec8
log-analysis7
security7
compliance7
incident-response7
pci-dss6
elasticsearch6
intrusion-detection6
docker6
monitoring6
wazuh6
security-hardening6
credentials5
slash-commands5
Programming languages (6)
Github contributions (5)
ssejzer/ssejzer
May 2021 - Mar 2023
Contributions:5 pushes, 1 branch in 1 year 11 months
MyHeritage-IT/bios-password
Apr 2022 - May 2022
Contributions:19 pushes, 1 branch in 25 days
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