SKFreelancer profile translated to English.
Back to original languageAbout Sergej
IT Support, Consulting & Administration of the IT Infrastructure
Windows 365 and Office 365 in a Hybrid / Cloud environment for large companies
Project experience in various positions, worked my way up from the bottom with diligence and acquired all knowledge myself, See CV and reviews:
Service Desk
IT Rollout Technician
IT Rollout Coordinator
IT Floorwalker
Service Technician
1st / 2nd / 3rd Level Support in the Windows environment
Windows Client & Server Administrator
VMWare VSphere Support
Other experiences and acquired knowledge outside of large projects:
Programming skills / scripting languages known in C, C++, Java, PHP, HTML, CSS, Powershell, Linux Shell during computer science studies
Linux Server knowledge available, especially web servers based on Apache, MySQL
Linux Server Monitoring via Webmin / Virtualmin
Building websites with HTML / CSS / PHP
Wordpress Content Management knowledge
Gambio Online Shop setup
Online Marketing knowledge, especially Search Engine Optimization
Management of 100 domains on Linux Debian basis
During my studies, I already supported regional SMEs in IT through my self-employment and then worked on large IT projects in various industries with renowned companies, See CV, See reviews.
German
Native or bilingual
English
Fluent
Russian
Native or bilingual
Can work on-site
Frankfurt am Main (up to 50km), Wiesbaden (up to 50km), Mainz (up to 50km)
Experience
- JB Products Europe GmbHSetup & Administration of an MS365 Autopilot Hybrid InfrastructureRETAIL (LARGE RETAILERS)September 2024 - Today (1 year and 9 months)Frankfurt am Main, Germany• Planning, installation of the Microsoft Hybrid infrastructure• Installation of Windows Server 2022 as Domain Controller on a Dell server including Group Policies• Installation of Windows 11 Enterprise, as well as Office 365 on client devices• Cisco network hardware installation and configuration (Switch / Wifi Router with VLANs)• Email migration to Microsoft Exchange Online• iPhone installation, as well as setup with Outlook• User training and support during initial operation• Ongoing support for errors or further optimizations and requests
- Octapharma AGServer Administrator for the Microsoft 365 Hybrid InfrastructurePHARMACEUTICALS INDUSTRYDecember 2023 - August 2024 (8 months)Heidelberg, Germany• Physical installation of Dell servers• Dell Server Idrac & ESXI configuration and installation• Patch, Windows Server setup, diagnosis of all Windows Servers 2008-2022• Check and correct Group Policies & permissions on Domain Controllers• Software installation on Windows Server and client hosts with Windows 10 and Ubuntu Linux• Installation & update, as well as monitoring of all servers with Cisco Endpoint Protection• Monitoring of the MS365 infrastructure via Grafana• Monitoring, audit of security vulnerabilities via Qualys• Monitoring, audit of IoT security vulnerabilities via Claroty• Introduction, troubleshooting of Ivanti for automatic software distribution for Windows Servers & Clients• Updating and troubleshooting of lab production systems based on Windows 10 / Ubuntu Linux• Management of virtual machines on VMware Sphere based on virtual Windows ServersProject planning and introduction of USBSecurity policies via Cisco Endpoint Protection• Writing Powershell scripts and distributing them to servers and clients as required by the company• Assisting in Second / Third Level Support for Windows 10 / Windows 11 clients for user support
- Aareal Bank & Aareon AG2nd Level / 3rd Level Senior Client Administrator for Windows 10BANKING AND INSURANCENovember 2022 - November 2023 (1 year)Wiesbaden, Germany• Hardware & Software Support for Windows 10 clients• Installation & configuration, troubleshooting of banking clients based on Ivanti with Windows 10• Support for Cisco Anyconnect VPN• Network, troubleshooting/performance measurement• Support for Office 365, especially Outlook• Support of the Citrix environment for end customers & enterprise users worldwide• Support of banking VDIs based on Windows• Coordination of small projects (security topics, hardware and software optimizations, such as GPOs)• VIP support for corporate users (Board/Management)• Ticket processing via Valuemation
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Education
- Class BKlasse B