Open to opportunities

Ілля Поваляєв

@0002589

System Administrator specializing in Unix, mail/DNS, monitoring, and automation—keeping infrastructure secure, reliable, and scalable.

Ukraine

Message

What I'm looking for

I’m looking for a System Administrator role where I can run Unix/Linux/FreeBSD infrastructure, manage mail/DNS/VPN and monitoring, and use automation with Ansible/Cf Engine to improve reliability, security, and deployment speed.

I’m a System Administrator focused on Unix/Linux/FreeBSD environments and stable, secure infrastructure operations. I’ve spent years running production systems end-to-end—OS administration, services (mail/DNS/VPN), and day-to-day reliability for critical users.

In senior roles, I own system administration services and their lifecycle: mail stacks (Qmail/Postfix/Sendmail), directory and access components (LDAP/Active Directory/Lotus Domino/Redmine), and DNS platforms (BIND/PowerDNS/djbdns). I also lead monitoring and reporting using Nagios, OCS Inventory NG, Opsview, and Munin to keep issues visible and prevent outages.

My approach combines strong networking fundamentals with automation and infrastructure planning. I work with firewalls and VPN technologies (pf/iptables/ipfw, IPsec/OpenVPN/OpenSwan) and support virtualization and clustering with VMware, KVM, Xen, OpenVZ, FreeBSD jail, DRBD, and OCFS2.

I’m also comfortable bridging operational needs with scripting and tooling—using sh, Perl, SQL/PLSQL, C, and PHP—plus configuration/management with Cf Engine and Ansible. I value documentation, controlled changes, and continuous optimization of deployments, monitoring, and backups.

Experience

Work history, roles, and key accomplishments

Senior System Administrator

FED Kharkiv

Oct 2020 - Jan 2021 (3 months)

Provided senior system administration support for FED Kharkiv, handling day-to-day infrastructure administration.

System Administration Linux FreeBSD Windows Server Networking DNS Monitoring Virtualization

Self-Employed IT

Homemade

Jul 2019 - Sep 2019 (2 months)

Delivered IT system administration and deployment management work as a self-employed professional.

System Administration Deployment Management Linux Windows Server Networking DNS Backup VPN

Ground Forces Soldier

Ukrainian Military Forces

Jul 2017 - Nov 2018 (1 year 4 months)

Served as a Ground Forces soldier while performing IT system administration and deployment responsibilities.

System Administration Deployment Management Linux Windows Server Networking Monitoring Scripting User Support

Naval Forces Sailor

Ukrainian Military Forces

Jul 2016 - Jul 2017 (1 year)

Served as a Naval Forces sailor, contributing to operational support during the role.

Systems Administration Networking Linux Windows Server Troubleshooting Documentation

System Administrator

S-car

Nov 2013 - Mar 2015 (1 year 4 months)

Managed PCs, servers, and network operations for S-car, supporting core infrastructure needs.

System Administration Servers Networking Linux FreeBSD Windows Server Backup DNS

System Administrator

CAC Cryptomach

Sep 2008 - Jun 2013 (4 years 9 months)

Monitored and administered the authorized certificate authority infrastructure, including blocking customer certificates and providing customer support.

System Administration Monitoring Linux DNS Customer Support Backup

Database Administrator

Ranok

Aug 2011 - May 2012 (9 months)

Administered Oracle database and OEBS on Linux, along with network and systems administration support.

Oracle Database Linux Networking SQL System Administration User Support

System Administrator

Querix Ukraine Ltd.

Mar 2010 - Nov 2010 (8 months)

Worked as a system administrator and deployment manager, writing scripts for IT/QA automation and supporting users and customers.

System Administration Deployment Management Shell Scripting Perl IT Automation Network Administration User Support Infrastructure Planning

Leading System Administrator

Kharkiv Underground

Aug 2009 - Feb 2010 (6 months)

Served as a leading system and network administrator, supporting IT operations and related infrastructure management tasks.

System Administration Network Administration Linux Windows Server Troubleshooting User Support Infrastructure Operations Monitoring

System Administrator & Deployment

Uniquare Ukraine

Nov 2007 - Oct 2008 (11 months)

Performed system administration (Unix/Windows), database administration (Oracle/PostgreSQL), and user support, including deployment management duties.

System Administration Deployment Management Unix Administration Windows Administration Oracle PostgreSQL User Support Networking