Mark Foster
Sr. Systems Engineer - Infrastructure at FreeBSD
Seattle, Washington, United States
Summary
👤
Senior🎓
Top SchoolMark Foster is a seasoned Sr. Systems Engineer with 30+ years focused on Linux/UNIX systems, networking, storage and security, currently shaping infrastructure at ExtraHop. He brings deep hands-on expertise across LDAP, DNS, VPN, firewalls, backups, digital forensics and blockchain node operations, with a track record handling SEV1 recovery for large-scale Isilon clusters. A longtime open-source maintainer and community organizer (FreeBSD ports, SeaBUG, GSLUG), he pairs veteran operational judgment with scripting and DevOps tooling (Git, Ansible, Puppet/Chef). Certified in CISSP, CASP+ and digital forensics, he blends incident response rigor with pragmatic infrastructure automation. Outside work he runs blockchain nodes and miners, reflecting a practical curiosity about distributed systems beyond traditional enterprise stacks.
11 years of coding experience
27 years of employment as a software developer
Certificate Digital Forensics, Certificate Digital Forensics at University of WashingtonAA Degree Math Physics Computer programming, AA Degree Math Physics Computer programming at North Seattle CollegeCertified Advanced Security Practioner, Certified Advanced Security Practioner at compTIACertificate Drafting CAD & Technical Illustration, Certificate Drafting CAD & Technical Illustration at Lake Washington Technical College
Stackoverflow
1,489reputation
46kreached
3answers
0questions
ubuntu
top-5%
python
top-5%
Github Skills (58)
django10
netbox10
network10
network-automation10
fluentd10
ubuntu9
infrastructure-management9
python9
logging9
ruby8
spark7
java7
database7
keytool6
pyopenssl6
Programming languages (10)
Github contributions (5)
ExtraHop/ansible-rpcapd
Dec 2017 - Jan 2020
Contributions:11 commits, 9 pushes, 1 branch in 2 years 1 month
ExtraHop/jira-saml
Sep 2020 - Aug 2021
SAML plugin for JIRA
Contributions:3 pushes, 1 branch in 10 months
samljira
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