Sergey Ivanov
Systems Administrator
Baltimore, Maryland, United States
Summary
👤
Senior🎓
Top SchoolSergey Ivanov is a seasoned systems administrator with 14+ years managing large, heterogeneous server fleets across Linux, Solaris/Illumos and OpenBSD, currently supporting critical infrastructure at the University of Maryland. He specializes in automation, configuration management, and observability—having migrated environments to Puppet with R10k, deployed MCollective orchestration, and consolidated identity services using RedHat IPA and SSH certificate authorities. Sergey has designed resilient mail and NFS/ZFS-backed storage architectures with Kerberos authentication and led complex migrations (IMAP to Zimbra, large mailbox moves) and packaging/repository work across RPM, DEB and IPS formats. Prudent about security and uptime, he routinely performs vulnerability audits, patch management and backup system design, and brings a rare blend of legacy Unix expertise and modern orchestration practices. Based in Baltimore, he pairs deep systems-level knowledge from MIPT with hands-on operational experience scaling services and automations that reduce toil.
14 years of coding experience
13 years of employment as a software developer
Master, Computer Sciences, Master, Computer Sciences at Moscow Institute of Physics and Technology (State University) (MIPT)
Github Skills (84)
sudo10
puppet10
slave9
otp9
docker9
user-management9
hiera9
opendkim9
active-directory8
idm8
freeipa8
identity8
certificate-authority8
mcollective8
access-control7
Programming languages (10)
Github contributions (5)
seriv/puppetlabs-docker
Feb 2018 - Feb 2021
The Puppet Docker repository
Contributions:6 pushes, 5 branches in 3 years 1 month
multiprocessingdockerpython-requestspuppet
seriv/OpenARC
Aug 2018 - Nov 2018
Open source ARC implementation
Contributions:32 pushes, 16 branches in 3 months
arc
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.