Senior System Administrator | DevOps Engineer | Team Leader

Successfully completed 100 of initial and feature implementations and software upgrades for numerous financial institutions. Diagnosed and resolved 50+ technical bugs affecting customer experience; escalated critical issues to the development team, resulting in a 40% reduction in support tickets related to technical difficulties. Developed and improved existing deployment solutions, integrating essential features such as database backups, rolling deployments, decommission and maintenance scripts, etc. Developed 2 migration plans for legacy hosted environments and successfully executed them in live production environments. Authored and maintained 15 technical guides for internal use and acted as a mentor to 3 new hires.

Department leadership and team development, formulating OKRs. Increased team efficacy by implementing agile methodologies, regular 1-1 meetings and hired key personnel including the Head of IT in US office and the entire Russian IT team. Enhanced connectivity and productivity for 700 employees. Facilitated a significant IT infrastructure relocation for the St-P office, ensuring uninterrupted service and a modernized network setup. Undertook 5 pivotal business trips to the USA and Ireland to diagnose and rectify major branch network infrastructure issues.

Established and enforced software and hardware standards, recovery protocols and produced detailed documentation of the network infrastructure. Expertly refined Active Directory, Group Policy Objects (GPO), Dynamic Host Configuration Protocol (DHCP), Domain Name System (DNS), network gateways, and Virtual Private Network (VPN) configurations.

Executed a seamless migration of essential services, ensuring zero downtime during the transition. Successfully migrated the domain environment from Windows Server 2003 to 2008 R2.

Implemented a secure VPN network architecture, enhancing inter-office communications and data security.