Dmitri Chebotarov Email & Phone Number

Mclean, Va, United States

* Microsoft 365 / Active Directory / DirSync / MS Teams / SharePoint Online / OneDrive / Microsoft Intune MDM / Licensing.* Data migration from “on-prem” systems to Microsoft 365 (File Server, SharePoint, Exchange, OneDrive)* Azure Application Proxy, SSO, SAML, ADFS, Conditional Access, Azure MFA, Duo MFA. * Azure Cloud Services: Networking, NSG, ExpressRoute / S2S VPN, Backups, File Services, Storage Accounts, Defender for Office 365 and Endpoints* Microsoft Intune MDM: create policies, manage Apple BM integration, applications, iOS and Android device compliance rules, etc.* VMware Horizon VDI: Windows 10, Connection Servers, UAG, Azure SSO authentication* Active Directory: using GPOs to effectively manage Windows computers* Automation using PowerShell (“on-prem”, Azure cloud)* Proficient with NIST 800-171, ISO27001 and CMMC.* Systems / Network Design and implementation.* Providing training for the team and end users - MS Teams, SharePoint Online, OneDrive, etc.

Fairfax, Va

* Managing HPC cluster: Linux RHEL7, Infiniband interconnect;* Managing RedHat NFS and GlusterFS storage systems (Linux RHEL7);* Design/Deploy/Support GlusterFS multi-node cluster: 24 servers, 10GB Interconnect, Linux RHEL7, 7PT raw storage;* Design/Deploy/Support RedHat Virtual Environments (RHEV, Linux RHEL7);* Operation Support for VCL environment (Linux RHEL7, RHEV, OpenNebula private cloud);* Write Ansible playbook to automate and manage servers;

Fairfax, Va

* Deploy/Support F5 Load Balancers: LTM/GTM 1600/4200/5200 series, multiple traffic groups, trunks, VLANs, DR site. * Mapped and Migrated mission critical workload from Cisco Load Balancer to F5;* Member of a team implementing DUO MFA @ GMU. Design/deploy/support Linux servers for DUO Auth Proxy services; * Member of a team managing GMU's HPC solution: RHEL6, Bright Cluster Manager, Red Hat Storage Server (NFS v3), Infiniband interconnect. * Design/Deploy/Support HADOOP environment (Ambari, HDP 2.3, Linux CentOS 7 w/ LXC).* Design/Deploy/Support OVIRT/RHEV environments (Linux CentOS/RHEL 7) w/ GlusterFS storage;

Fairfax, Va

* Design/Deploy/Support Virtual Classroom Lab - VCL - environment (Linux RHEL7, RHEV, OpenNebula private cloud, IBM BladeCenter HS22 blades /w CISCO Nexus 4000i switches;* VMware ESXi and Linux RHEL KVM hosts;* Design/Deploy/Support OpenNebula / Openvswitch networking private cloud;* Write custom modules to integrate VCL /w OpenNebula private cloud (Perl);* Support IBM N6040 and NetApp FAS3220 storage systems;* Openvswitch, Kickstart and Puppet to deploy and manage servers; * Use Puppet to automate and manage server;

Dulles, Va

(**) Successfully designed and built infrastructure from “ground-up” to support ~4000 users at 45 different geographical locations using cross-platform solutions (Linux/Windows) and virtualization (VMWARE/XEN). (**) Responsible for comprehensive oversight of the company's email systems, application servers and storage arrays. (**) Supported Email infrastructures: IBM Lotus Domino, MS Exchange 2007, MS Exchange 2010, Blackberry Enterprise Servers, Active-Sync. (**) Configured and supported multiple Microsoft SQL 2005/2008 Clustered and stand-alone servers.(**) Designed and supported Microsoft Active-Directory, multiple AD sites. (**) Designed and supported Virtual Infrastructure: 16 VMWARE ESXi hosts, 12 XEN hosts, over 200 VMs (multi-OS), Clusters, Windows and Linux VMs provisioning, Veeam B&R, PHD Virtual.(**) Hitachi AMS500/AMS200 SANs (FC, 325TB, Software: Storage Navigator Modular, FabricManager, DeviceManager), Cisco MDS 9000 FC switches.(**) JetStor 516iS SANs (iSCSI, 416 TB). DELL MD3xxx Storage (SAN, DAS).(**) Provisioned RGs and LUNs, assigned LUNs to servers (WWN, iSCSI initiator), resolved performance issues and added/replaced disks.(**) Migrated Novell eDirectory, 25 File Servers to Microsoft Active-Directory and MS File Servers.(**) Configured and supported over 40 Linux-based servers (CentOS/RedHat, Ubuntu): Squid proxy, DNS, Postfix (external SMTP), FTP, MySQL, Rsync, Print server, Apache (**) Scripting: BASH, Perl, PHP, PowerShell, CMD.

Odessa, Ukraine

(**) Migrated existing email system (FreeBSD, Sendmail, Pop3) to Lotus Domino R5. (**) Administered Lotus Domino infrastructure, multiple domains, over 500 users. (**) Programmed billing system based on Lotus Domino and IBM DB2 (JAVA). (**) Programmed Lotus Domino modules (Lotusscript, ODBC, Java) for real-time billings and usage reports. (**) Administered diverse operational environment - Linux, Solaris, OS/2, Windows NT 4.0/2000. (**) Migrated Solaris 8 servers to Linux RedHat 7.2, supported Linux RedHat 7.2, LDAP, DNS, DHCP, Proxy.

Odessa, Ukraine

(**) Migrated multiple critical systems from ccMail under OS/2 to Lotus Domino R5 under Windows NT 4.0. (**) Responsible for the design and administration of critical systems - Fax gateway, TELEX gateway and Email Systems. (**) Configured fax server for Lotus Domino (VSI-FAX) with two incoming and three outgoing line. (**) As a team member took part in development of TELEX server and email gateway (Microsoft Visual C++). Tested and integrated solution with Lotus Domino R5 on Windows NT 4.0/Windows 2000 Servers. (**) Configured and supported email servers for multiple external clients based on Windows NT and Lotus Domino R5.

Odessa, Ukraine

(**) Designed, implemented and supported local network. (**) Configured and supported the computer network: MS Windows NT 4.0, PDC, Print Server, MS Windows 95/Workstation, TCP/IP network, UNIX FreeBSD, proxy server Squid, SMTP,POP3,DNS servers. (**) Performed design work for marketing department (Corel 5.0-7.0, Adobe Photoshop, Adobe PageMaker).