sebastian(7) Miscellaneous Information Manual sebastian(7)

NAME

Sebastian Sobczynski - Linux systems engineer

SYNOPSIS

sebastian [--admin systems|database] [--developer] [--educator] [--leader] [--other]

SUMMARY

Experienced, highly motivated Linux engineer with expertise in LAMP stack, Linux systems configuration, troubleshooting, and a very good general understanding of IT systems.

A member of a 3rd line support team responsible for providing support for mission-critical systems.

OPTIONS

--admin systems

Extensive experience with the configuration, hardening, and maintenance of various Linux distributions, including:

Comfortable working with open source technologies in large-scale environments. Very proficient with KVM and the libvirt tool stack.

Experienced in rapid deployment and configuration management technologies such as kickstarts, Spacewalk Server, Ansible, and SaltStack.

Able to set up vital Linux infrastructure components including load balancers (Keepalived, HAProxy), DNS servers (Bind, PowerDNS), web/application servers (Apache, Nginx), and mail servers (Postfix). Familiar with network-level security policies as well as server-level security layers like SELinux. Well-versed in Cisco ASA firewall management.

Red Hat Linux certifications:

--admin database

Skilled in MySQL database administration for standalone servers as well as replicated and clustered environments like Galera cluster.

Experienced user of Percona Toolkit for MySQL .

--developer

Experienced in Python, PHP, and shell scripting.

Maintains several RPM packages internally using the Mock utility and various system tools and scripts.

--educator

Started a small technical blog to share knowledge:

--leader

Passionate problem solver in customer-facing environments, happy to mentor less experienced colleagues and share expertise.

--other

Enthusiastic about open source software and eager to learn about new technologies.

HISTORY

SEE ALSO