Jozef Reisinger
Sr. DevSecOps Engineer at Thermo Fisher Scientific
Bratislava, Region of Bratislava, Slovakia
Summary
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Senior🎓
Top SchoolJozef Reisinger is a Sr. DevSecOps Engineer with 13 years of hands-on experience securing, operating and automating Linux and Kubernetes environments for companies across telco, healthcare, biotech, finance and research. He combines deep operational skills (Ansible, CI/CD, SIEM/WAF) with practical software craftsmanship, writing tools and automation in Go, Bash and Python that have uncovered multiple inadvertent data exposures. Certified CKA, LPIC-2, CISSP and CCNA, he has led teams and projects up to ten engineers while running large-scale logging and security deployments on-prem and in the cloud. Known for pragmatic infrastructure-as-code and measurable risk reduction (e.g., dramatic WAF tuning and Datadog SIEM detections), he brings both audit-minded discipline and developer velocity to security operations. Based in Bratislava, he blends networking roots and a Master’s in international economics with an operator’s instinct for resilient systems.
13 years of coding experience
10 years of employment as a software developer
CCNA Computer Systems Networking and Telecommunications, CCNA Computer Systems Networking and Telecommunications at Cisco Networking AcademyMaster of Science (MSc) International Economics Languages, Master of Science (MSc) International Economics Languages at Ekonomická univerzita v BratislaveMiddle School Diploma (maturita), Middle School Diploma (maturita) at Bilingual high-school (Italian - Slovak), Bratislava
English, Italian, Slovak
Stackoverflow
1,553reputation
408kreached
22answers
13questions
Github Skills (117)
security10
sed10
cut10
perfect10
golang10
cli10
go10
jq10
script10
uniq10
cat10
devops10
wc9
shell9
waf9
Programming languages (10)
Github contributions (5)
jreisinger/jreisinger.github.io
Mar 2015 - Feb 2025
Contributions:383 pushes, 1 branch in 10 years
jreisinger/docs
Nov 2019 - Dec 2022
Contributions:2550 commits, 4 PRs, 3111 pushes in 3 years 2 months
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