Hire the Best Microsoft Lync Server Specialists
in Ukraine

I am a System Administrator with strong experience in Windows/Linux environments, user management, IT infrastructure support, email systems, and cloud services. Skilled in troubleshooting, network configuration, Active Directory, Office 365, Google Workspace, and system monitoring. I can help you with: Email migration (Outlook → Gmail, Gmail → O365, IMAP/POP, PST imports) Windows Server administration (ADDS, GPO, DNS, DHCP) Linux server setup & maintenance (Ubuntu, Debian, CentOS) Security hardening and backup configuration User onboarding/offboarding Desktop support and issue resolution Network configuration (routers, VPN, firewalls) Why clients choose me: ✔ Fast communication ✔ Reliable and detail-oriented ✔ Clear documentation for every task ✔ 5+ years of IT experience ✔ Focus on safe, secure, and efficient solutions I'm ready to help with one-time tasks, ongoing support, or long-term cooperation.

System administrator with more than 10 years of experience. Work with all Windows server platforms and user OS, mail, O365, Exchange online, AD, Azure AD, GPO and so on.

⭐ Job Success | 👍 Satisfaction | 🛡️Rated | 🛡️Available | 🛡️Behavior 🔶Experienced IT Specialist with 8+ years of experience in IT field as senior IT Specialist and System administrator. I'm currently working as Infrastructure Engineer.🔶 Technical Skills: ✔Cloud: - Azure - AWS - Google Workspace ✔Azure: - Active Directory - Multi-Factor Auth (Including a passwordless entry) - Intune (Include Hybrid with on-prem, Complience Policy, Application, MacOS MDM and Windows enrollment) - Defender for Endpoint - Azure Virtual Desktop - Conditional Access - Aplication Firewall - SSO - Azure VPN (S2S and S2P) - RBAC ✔Microsoft: - Server: Windows Server 2008 / 2008 R2, Windows Server 2012 / 2012 R2 / 2016 / 2019 / 2022 - Client: 7 / 8 / 8.1 / 10 / 11 - Office: 2003 /2007/ 2010/ 2013/ 2016 / 2019 / 365 - Microsoft Exchange: 2003 / 2007 / 2010 / 2013 / 2016 / Office 365 - Windows Server Services: Active Directory, Group Policy, Remote Desktop Services (include RD Gateway), RRAS, DNS, DHCP, Failover Clustering, WDS, File Services, WSUS, Radius, IIS ✔Linux: - Ubuntu, CentOS, Debian and other - Nginx, Apache (Sites, proxys, redirects) - Bash, Shell, Python scripts - UFW, IPtables - MySQL, MariaDB, Postgresql - Install sites (WordPress, File Exchange, Zabbix, etc.) ✔GSuite: - Email & Data migration from or to G suite - Setting up, configuration and administrating G suite ✔Domain/DNS: - Expertise in migrating Domain and DNS from various registrars - Managing DNS/Domains with proper records. ✔Virtualization: - Hyper-V (2008, 2008 R2, 2012, 2012 R2, 2016) - VMware ESX/ESXi (4.x, 5.x,6.x) - Oracle Virtualbox - Proxmox ✔Network: - Fortinet FortiGate v5.x-v7.x (FortiOS, 60E, 100D, 110C) - Aruba Controller, Aruba API, Aruba Mobility Master - HP ProCurve switches - Cisco Routers&Switches, Wi-Fi routers, AP - Mikrotik Routers&Switches - pfSense ❖Other: - Backup Services: Veeam, Acronis, Microsoft DPM - Surveillance systems(Have experience working with NVR & DVR, grandstream, hikvision, etc. cameras) IVMS, CMS, Partizzan. - VPC hostings (DigitalOcean, Vultr etc.) ❖Languages: - English – High Level - Read and Write, Low level - Speak. - Ukraine - Native I’m a fast learner and a hard-worker with a high level of motivation. I'm very organized, responsible and service oriented. Currently, looking for challenging projects to get use of my experience properly and sharpen my skills even more.

System Administration: I have extensive experience working with Linux/Unix systems, including CentOS, Debian, Ubuntu, AlpineLinux, FreeBSD, as well as Windows Server. I have configured and maintained servers from various manufacturers such as HPE, DELL, IBM, Supermicro. Familiar with various hosting control panels: DirectAdmin, cPanel, Plesk, VestaCP/HestiaCP, CWP. Integration and Automation: I have deep knowledge of protocols on hosting servers: HTTP(S), DNS, FTP, SFTP, SSH, SMTP, IMAP. Developed and implemented integrations for optimizing and automating server infrastructure processes. Virtualization and Cloud Technologies: Significant experience with virtualization, including KVM (Proxmox, Libvirt), VirtualBox, OpenVZ, LXC, VMWare. Configured and managed virtual environments, aiming for maximum flexibility and efficiency. Networking Solutions: Proficient in maintaining networks on equipment from Juniper, Cisco, Mikrotik. Confidently configured VLANs and BGP, as well as controlled the operation of the network firewall to ensure security and stability. Telephony: I have experience working with SIP telephony systems, such as Asterisk, for setting up and supporting VoIP communication, ensuring reliability and quality of communication. Worked with FreePBX, including developing various integrations through its API. Programming and Scripting: Proficient in programming with PHP and JavaScript, successfully developed various modules and integrations for the WHMCS billing system. Familiar with Python and its use for task automation and script development to enhance work efficiency.

With over a decade of experience in System Engineering and Architecture, I have honed my skills in various facets of IT infrastructure management and optimization. Throughout my career, I have played a pivotal role in numerous migration projects, which encompass designing from the ground up, enhancing existing systems, and providing support for diverse infrastructures. My expertise spans across the following domains: • Management, development, and implementation of on-premises Microsoft products and services, including Windows Server, DNS, DHCP, Active Directory, Group Policy, Remote Desktop Services, System Center, Hyper-V, SQL Server, and Clustering, among others. • Administration of Open-Source products and services such as Ubuntu, CentOS, MySQL, Nginx, Apache, WordPress, Let's Encrypt, PHP, Docker, pfSense, and more. • Comprehensive knowledge of Azure/Office 365 IaaS, SaaS, and PaaS offerings, including Site Recovery, Azure Migrate, Active Directory, Multi-Factor Authentication, Azure Information Protection, Intune, Enterprise Mobility + Security, Virtual Machines, Databases, etc. • Proficiency in Amazon Web Services IaaS, SaaS, and PaaS solutions, including S3, EC2, CloudFormation, RDS, CloudWatch, Migration Service, and VPC, among others. • Experience with Dell, HP, Supermicro, Cisco, and Lenovo servers and storage systems. • Network management for Dell, HP, Cisco, Mikrotik, Ubiquiti, D-Link, and TP-Link devices. • Implementation and support of Microsoft, VMware, Nutanix, and Starwind hyper-converged infrastructures. • Expertise in Exchange, Kerio Connect, and Zimbra mail systems. As a seasoned professional, I am committed to delivering top-notch services in a diverse range of projects and ensuring optimal performance of IT infrastructures.

🔹 About Me Hello! My name is Andrii Pavlikovskyi, and I am a systems administrator and IT infrastructure specialist with 10+ years of experience. I help businesses build reliable, secure, and high-performance IT solutions by leveraging my expertise in networking, virtualization, cloud computing, and automation. I specialize in: ✅ Networking & Security: Advanced routing, VPNs, firewalls, Mikrotik (MTCNA, MTCWE, MTCEWE, MTCIPv6E, MTCRE), pfSense, Ubiquiti. ✅ Servers & OS: Windows Server (AD, DNS, DHCP, File Servers), Linux (Debian, CentOS, Ubuntu). ✅ Virtualization & Cloud: Proxmox VE, VMware ESXi, Hetzner, TrueNAS, Synology. ✅ Backup & Disaster Recovery: Veeam, automated backup strategies. ✅ Web & Hosting: Nginx, Apache, IIS, DirectAdmin, ISP Manager, WordPress, Bitrix. ✅ Monitoring & Automation: PRTG, scripting (Bash, PHP essentials). ✅ VoIP & Remote Work Solutions: Asterisk (basic), 3CX, VMware Horizon. 🔹 What I Offer: 📌 Building and managing secure IT infrastructures – for SMB. 📌 Optimizing cloud and on-premises environments – ensuring stability, security, and scalability. 📌 Virtualization & High-Availability setups – including Proxmox HA clusters with Ceph storage. 📌 Disaster recovery planning – reliable backup strategies with Veeam/Proxmox Backup Server and cloud replication. 📌 Advanced networking solutions – including VPNs, firewalls, and complex routing setups. 🔹 Why Work With Me? ✔️ 10+ years of hands-on experience in IT infrastructure. ✔️ Certified networking expert. ✔️ Fast response & result-driven approach. ✔️ Proven experience with real projects in production environments. Let’s discuss how I can help with your IT needs. Message me to get started!