PROFESSIONAL EXPERIENCE

Confidential

VMware administrator

Responsibilities:

• I worked as VMware administrator. Confidential VMware team supports about 17 clients throughout USA including confidential. Servers are deployed in various areas of United States. I log in remotely to vCenters and implemented various tasks which included monitoring, updating, configuring and troubleshooting VMware hosts, vCenters and VMs. I implemented vMotion to resolve issues with resources on hosts, took actions regarding alerts, resolved issues with networking, storages and hardware. I worked over weekend, when it is necessary, on scheduled or emergency maintenance and patching. My work also included work with CentOS Linux 6 since most of tools worked on Linux platform.
• Also, I was responsible for servers of company Fannie Mae and regularly visited their data centers and fixed issues on ESXi and vCenter servers. These are Confidential BladeCenter Blade Servers and also Dell and HP. I worked with blades, replaced parts, configured and did troubleshooting. Also, worked with SAN. Installed HBA, updated BIOS and system firmware. Connected ISXi initiator with EMC targets and did troubleshooting with paths. I also configured and used IMM and ILO for remote login.

Confidential, Alexandria, VA

Responsibilities:

• Position: Senior Red Hat Linux administratorCompany implements Red Hat 6.5 servers on RHEV virtual platform and AWS, and HP 11.1 and AIX UNIX servers on physical boxes. I work as Tier 3 support on monitoring servers and taking appropriate actions.
• I install new servers, do configuration, install applications using rpm and yum, extend LVM drives, worked with user’s accounts, change firewall rules, selinux and all other Linux features. I also worked often with hardware issues and did monitoring of CPU, memory, disks utilization and Apache web servers. Environment consists of more than 5000 servers. Monitoring and automation tools implemented in this environment were Puppet, Ansible and Nagios.

Confidential, Arlington, VA

Linux administrator, VMware administrator

Responsibilities:

• I worked as Linux Red Hat and VMware vSphere 5.1 administrator. I install new Red Hat 6.3 servers as VMs. Then I did hardening for new servers and created new Gold and Silver images. I used UPC (Unix Policy Checker) to check and then did necessary configuration. I created new servers using VMware vCloud 1.5. Company implemented Linux servers in Active Directory using SSSD. I create changes on sudoers file to grant permissions for users. I work as support for MQ and JBOSS administrators and XML and Oracle developers as well as other users that use Linux servers. I create yum repositories, extend LVM network drives, install and uninstall applications and did troubleshooting. I create bash scripts for various tasks.
• We built virtual infrastructure from scratch. VSphere 5.1 was implemented with vCloud. We created Silver and Gold images for various kinds of servers, particularly for JBoss, NFS and Oracle etc. Then about 2500 VMs have been created in seven Data Centers using vCloud. vCenter Orchestrator (vROps) is used for automation. I created bash scripts and implemented it using Orchestrator. As final step we implemented VMware technologies for monitoring - vCops, Hyperic and ChargeBack Manager. Last 6 months I worked on monitoring, troubleshooting and supporting Red Hat servers for client.

Confidential

Wintel, VMware administrator Tier III

Responsibilities:

• I work in Wintel and Unix team. Overall responsibility is more than 700 virtual and physical Windows servers and 250 Solaris. Our main duty is keeping servers up, running 99.95 % of time, and giving Tier III support for clients. My special achievement is in area of diagnostic and troubleshooting issues because of which I won SRA Certificate of Appreciation after 10 months and got increase in salary.
• As Windows administrator, I installed new Windows 2003 and 2008 virtual and physical servers. We monitor servers and do configuration and troubleshooting. I also installed physical HP G7 servers and KVMs in racks. I do hardware troubleshooting of physical HP and Dell servers. Installation of web applications as IIS 6 and 7 and work with Web application and pools is also my everyday duty.
• As VMware vSphere 5 administrator, I installed new ESXi 5.0 servers on HP servers since company implemented transition from old physical servers to new virtualized. I also implemented P2V conversion using VMware VCenter Converter. I installed VCenter 5 servers on Windows 2008 servers and configured it. I did all configurations of new ESX hosts, installed new Virtual guests and worked close with storage team on configuration of LUNs and network settings. My work in this company included wide area of different tasks with vSphere 5.0 from simple configurations and managing snapshots to complex troubleshooting and configuring DRS clusters, virtual and distributed switches, vMotion, Storage vMotion and other features.
• As SQL administrator, I installed new SQL servers and instances, did basic and advance configuration and troubleshooting. Resolved connectivity issues between SQL servers and applications like IIS and SharePoint. I worked close with SQL developers on configuration and implementation of new developed applications that use SQL server.
• As Solaris Unix administrator I worked on everyday tasks like monitoring, troubleshooting, taking appropriate actions and assisting customers and developers.

System administrator

Confidential

Responsibilities:

• I worked as Data center operator, Windows, and VMware vSphere 4 engineer. Installed physically servers. Installed, configured and did maintenance for Windows 2000, 2003 and 2008 Server, Linux Red Hat 5.3, Solaris 10 and VMware 4.0 vSphere servers.
• Installed servers in racks, connected to network and optical SAN. Configured servers, installed applications, did updating and patching, restarted when it is necessary. Worked with Confidential and SUN backups - Confidential System Storage TS3200 Tape Library and Confidential System Storage TS3500 Tape Library and Solaris ufsdump backup. Worked with Confidential backup tapes. Installed HP DL380 and 360 servers, Dell 710 rack servers, HP Blade servers in HP c7000 enclosures. Installed Windows 2008 and 2003 Server operating system, MS SQL Server 2008, Exchange 2007 Server and VMware ESX server 4.0 and 3.5 in the physical servers. Worked with Active directory and all-important features of Windows 2008 Server.
• Installed VMware Virtual Center on Windows 2003 Servers, did configuration. Used VMotion to move virtual guests from one datacenter to other. Used HA and DRS and monitored VMware servers and resources. Did migration P2V (physical to virtual servers). I configured ESX 4.01 servers for SAN with fiber-optic cable.
• Physically installed Confidential System storages, changed failed disks.

Confidential, VA

System administrator

Responsibilities:

• Worked as Windows system administrator. Main duty was help desk support for employees of company. Worked on installing clients and troubleshooting VPN with Cisco VPN client. Checked backup job every day and work on troubleshooting Symantec Backup Exec 12.5. Solved problems with printers. Made new AD and mail accounts for new employees.
• Worked as MS Exchange 2007 administrator. I monitored and configured mail servers and I was also responsible for supporting and helping employees in their e-mail issues.
• Installed two new servers Windows 2008 R2 as host servers for Hyper-V virtual machines. Installed Dell PowerEdge 2970 servers physically from installing in rack. Installed operating systems, updated, configured. Installed four virtual machines, two VM on every physical server. Installed operating systems - Windows 2008 64-bit and 2003 for virtual machines. Updated, configured and joined in domain. Configured RAID disks for the server. Configured Konica printer and scanner. Installed printers on workstations.

Confidential, Washington D.C

System administrator

Responsibilities:

• Monitored and maintained servers (HP DL380) - Tier III support. Kept Windows 2003 servers in good condition, monitored errors in Event viewer and fixed it, applied patches and updating. Solved problems - replaced hard disks in case of failure - “hot swap”, fixed errors in Backup Exec 11, fixed problems with connectivity and TCP/IP protocol, with name services - DNS and WINS, with DHCP. Changed backup tapes, restored files upon user requests. Created, enabled and disabled user accounts, joined users in security and distribution groups and gave permissions for folders using Active Directory and Group policy. Installed network printers on printer server and on user’s client computers. Solved problems with MS Office 2007 for users. Enabled mail addresses for users accounts, created new public folders and gave permissions to users in MS Exchange 2003 Server and Outlook 2007. Solved problems with mail servers and accounts.
• Worked as VMware administrator for VMware Infrastructure 4.0 and used Virtual Centers 2.5 and VMware Client. Monitored servers, did troubleshooting, applied patches and updates. Applied “cold” and “hot” moving of virtual machines, VMotion, and monitoring resources using DRS.
• Regulated network security. Used Verisign token for secure login in servers and switches. Locked and unlocked ports on Cisco Catalyst 4506 switches for secure connection of new workstations and laptops. Installed and configured new Cisco switches.

Confidential

System administrator

Responsibilities:

• Worked as Tier III support for more then 300 clients, including United Nation Foundation, DCRB, Embassy of Luxembourg, Washington Convention Center, USA for UNHCR, Quadel, Global Foundation for Children, Center for Security Policy ... Worked in DCRB office 4 hours on day and rest of day I worked on call, using remote login tools as MS RDP or Bomgar. Worked as main administrator for N able, monitoring software, monitored, and made troubleshooting for client’s servers and workstations. Installed, updated, applied patches, solved software and hardware problems for servers. Servers include Dell PowerEdge 2950, 2850, 2650, Domain controllers, MS Exchange 2003 and 2007 Server, SQL Server 2005 and 2008, Applications servers - Antivirus (Symantec Point protection 11, Sophos, McAfee), Blackberry Enterprise Server 4.5 and 5.0, Veritas and Symantec Backup, IIS 6.0. Made scripts for Linux bash shell for automating tasks
• Worked with Citrix Metaframe Xp server, installed servers, installed applications for clients, gave permissions, worked with printers and printer drivers
• Installed, monitored and maintained VMware ESX Server and Virtual center (installed new ESX Servers, installed new virtual machines, monitored using Infrastructure client, “cold” and “hot” moving using VMotion, created new virtual machines from physical OS, did backup. Worked with VMware vSphere and Infrastructure.
• Configured Cisco Pix firewalls, Cisco Routers, HP and Cisco switches, Fortigate Fortinet security appliance did troubleshooting and maintenace. Solved problems with network devices - firewalls, switches and routers - Cisco and Fortigate
• Supported users - created users accounts in Active Directory, gave them permissions, and joined in groups. Worked on call for solving problems with mail accounts and Outlook, fixed problems with Windows XP and Vista

Confidential

System administrator

Responsibilities:

• Worked on design, installation and support of Microsoft Windows 2000 and 2003 networks for local companies, installed Windows servers: Web servers (IIS 5.0 and 6.0), Exchange 2003 Server, ISA Server, Firewalls, Linux servers (Apache on Red Hat)
• Installed, configured, did troubleshooting or Red Hat 8.0 Linux servers, Apache web server, file and application servers.
• Applications: McAfee and Symantec Antivirus, Veritas Backup exec, MS Office
• Technical support for companies and employees
• End-user training: Windows, MS Word, Excel, Internet, Outlook
• DUEL (Software Co.) Belgrade, Serbia

Confidential

System administrator

Responsibilities:

• Complete responsibility for design and installation, including:
• Public network, Demilitarized zone (DMZ) - Internet Information Server (MS IIS) 5, MS Exchange Server 2000, Internet security Server (MS ISA) 2000 as Firewall, Public IP address, DNS – Installed from scratch and did maintenance and troubleshooting. Configured Cisco router, made Powershell scripts for automation tasks
• LAN network – Active Directory, Group policy, User accounts, File servers, DNS, DHCP, WINS, MS backup, Remote administration, Managing data storage, Printer and faxes, Network monitor. I created and joined computers in a new domain.
• WAN network – Main office – Belgrade, Serbia, 3 branch office - Podgorica, Budva, Bar (Montenegro), about 60 workstations, RRAS servers – maintenance and troubleshooting

TECHNICAL SKILLS

• Windows Windows 2008 R2 Server, Windows 2003 Server, Windows 7, Windows XP, Windows Vista – production experience over 10 years.
• ESX and ESXi Server 3.5 and 4, VMware Infrastructure 3 and vSphere 4, VMware Virtual Center, vMotion, HA, DRS and other vSphere features, VMware Workstation, Server 2.0, MS Hyper – V
• MS SQL server 2008 and 2005 - advanced administration, installation, databases and tables, security, mirroring, failover clustering, instances, agent and scheduled jobs, upgrade, maintenance, troubleshooting
• MS Exchange 2007 /2010 – Installation, configuration and troubleshooting. Making new e-mail accounts for users, giving permissions and making them members of respective groups. Migrating users accounts to new databases and resolved issue with dismounted databases. It also includes work with Blackberry servers as part of messaging suite.
• Linux / UNIX Sun Solaris 10 Red Hat and Enterprise 5.0 – advanced administration. Installation and advanced installation, Bash shell, GNOME GUI, patching and updating, package installation, user accounts, permissions, services, processes, hardware and disk management, network configuration, Samba, Apache Server, NFS and Autofs, BIND, bash scripting
• Active Directory, Group policy, MS Exchange Server 2000, 2003, 2007, TCP/IP, DNS, DHCP, WINS, SMTP, Symantec and VERITAS Backup Exec, MS ISA Server, MS IIS 6, RAID and Server load balancing, Remote desktop,