Espen Olsen
Analyst
Oslo, Norway
Summary
👤
Senior🎓
Top SchoolEspen Olsen is a seasoned threat intelligence analyst and systems specialist based in Oslo with 14 years of hands-on experience securing and operating large-scale infrastructure. He has deep expertise in Linux/Unix environments, virtualization, automation, and incident response from roles at Basefarm where he helped manage thousands of servers, led DNS/OpenSSH/ClamAV/Splunk responsibilities, and served briefly as acting CISO. Comfortable in both advisory and technical capacities, he combines malware analysis, network security tooling (Snort/Suricata) and scripting (Perl, Python, shell) to detect and disrupt adversaries. His background includes low-level device work—maintaining CyanogenMod ports and kernel/device driver tweaks—showing comfort from hardware to cloud. Known for pragmatic, strategic decision-making in high-pressure operations, he brings a blend of systems engineering and threat-focused investigation to defensive security.
14 years of coding experience
Bachelor's Degree, Informatics with system administration specialities, Bachelor's Degree, Informatics with system administration specialities at Sør-Trøndelag University College (HiST)
English, Norwegian, Swedish, Danish
Stackoverflow
200reputation
19kreached
4answers
6questions
Github Skills (159)
dashboard10
python10
grafana10
automation10
elasticsearch10
home-assistant10
influxdb10
monitoring10
mqtt10
data-visualization10
home-automation10
mysql10
samsung10
analytics10
iot10
Programming languages (12)
Github contributions (5)
espenfjo/nvdparser
Oct 2014 - Dec 2015
Contributions:22 commits, 1 PR, 4 pushes in 1 year 1 month
espenfjo/FjoSpidie
Feb 2013 - Aug 2015
Contributions:90 commits, 25 pushes, 1 comment in 2 years 6 months
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