Igor Dyachenko

Experienced mostly in Windows System Administrator with 25 years of expertise in managing worldwide companies, with 1000+ users and 100+ hosts. Highly resourceful IT professional with extensive knowledge of hardware and software in Windows Server environments, On-Site virtualized(VMware, Hyper-V, Proxmox) and Hybrid installation. Dedicated in analyzing and mitigating risk and finding cost-effective solutions.

Senior Windows Systems Engineer at EMISOFT COMPUTER SYSTEMS & COMMUNICATION (2022-10 – Present)

Systems Operations, Administration, and Maintenance

• Follow existing incident, problem, release, crisis and change management processes as well as provide feedback to improve said processes
• Manage Exchange and Active Directory Performance including replication
• Works independently designing and developing new Windows System solutions
• Exchange O365 account administration\ troubleshooting
• Exchange O365 deployment and migrations
• Microsoft Azure administration - adds moves, and changes
• Windows Migration Tools
• ADConnect, Azure AD - setup, and configuration trouble shooting implementing and supporting
• VMWare - setup, and configuration trouble shooting implementing and supporting
• Cisco IP Phone\ Cisco Call Manager - changes
• Cloud\AD\Exchange account administration (modify and mange user accounts and group permission's).
• PowerShell\ VB script expert knowledge
• BES administration\ troubleshooting

IT Manager at APPLIED TECHNOLOGIES LTD. (2006-02 – Present)

Systems Operations, Administration, and Maintenance

• Follow existing incident, problem, release, crisis and change management processes as well as provide feedback to improve said processes
• Manage Exchange and Active Directory Performance including replication
• Expert knowledge of development and implementation of GPOs, Server hardening and Microsoft Clustering technologies
• Create best practices and take charge of build decisions, infrastructure and systems software design on larger, more complex systems to achieve strategic objectives
• Created and maintained a comprehensive list of all Office 365 tenants, including email addresses, domains, and administrators
• Managed the migration of over 300 users from on-premises Exchange to Office 365 using PowerShell scripts
• Provide L3 ( Highest level ) of technical support by handling systems-related issues
• Support systems infrastructure, hardware, and software, including: analysis, planning, design, development, implementation, provisioning, upgrade and day-to-day operations
• Perform installation, evaluation, maintenance, and problem resolution for the SCCM server and DPs as well as release management deployments to PCs
• Managed IT staff, including hiring, training, conflict resolution, performance coaching and talent management
• Managed financial aspects of the IT Department, including purchasing, budgeting, and budget review
• Developed and implemented all IT policies and procedures

Chief of IT Systems & Infrastructure at ROCKET SOFTWARE INC. (2010-10 – 2018-10)

• Support of multi-node, worldwide area AD-network.
• Troubleshoot of any incidents happen on production Windows Servers.
• Standardising and upgrading Production infrastructure.
• Rebuilding AD tree.
• Planning and Building DFS structure to provide file services worldwide. Support of incidents with DFS servers.
• Planning, building and support WSUS scheme in production, lab and users areas.
• Planning, building and support of System Center configuration Manager for production and end-user systems.
• Implemented Automatic patch system for Production and end-user systems. Building PXE-based OS deployment for user and production systems
• Manage Exchange and Active Directory Performance including replication

Bachelor's in Design and Technology of Electronic Equipment – SOUTH URAL STATE UNIVERSITY (1993 – 1998)