OBJECTIVE:

• To utilize my professional experience and al background in information, network, security and systems engineering position that will help improve company operations and contribute to their overall success.

TECHNICAL SKILLS:

Technology and Tools: FreeBSD, LINUX (RHEL 3,4,5,6; Fedora), HPUX 11i v3, Solaris 10. Systems Integration - Puppet, RedHat Satellite, MSCC. RPM and FreeBSD ports. DNS (BIND), DHCP, NFS, Samba. Mail (Sendmail, Postfix, Dovecot, Zimbra, qMail)HTTP/HTTPS (Apache). TCP/IP, routing and switching protocols. Authentication mechanism LDAP, SAMBA, Radius. Security and Intrusion Prevention. Experience in using Squid, nmap, ipfw, ipfw2, iptables, SSH. Monitoring - Nagios, Redhat Satellite Scripting (sh, bash, csh). Database MySQL and some Oracle (install mostly). VMWare ESX 4,5, vCenter 5. NetApp, EMC (client PowerPath), FreeNAS. DataCenter experience. SSH ( Secure Shell ).

PROFESSIONAL EXPERIENCE:

Confidential

Responsibilities:

• HPUX 1i v3 OS on r2800 servers maintenance.
• Review application upgrades and migrations, patches and QPs.
• User Accounts maintenance with shell scripts and puppet.
• Centralized Software depot and Ignite servers ( HPUX ).
• Cron and services review for HP-UX servers running Oracle 10g and 11g.
• Install and review additional software ( sshd and sudoers policies review ).
• Oracle DB monitoring with DBA.
• Migration HPUX to RHEL 6 vm running on HYPERV 2012.
• Linux / Unix systems intergration with puppet, pulp and RHSAM.
• Windows systems integration with Microsoft System Center 2012
• Review firewall policies on linux for db migrations.
• Review and test deployment with Puppet / Katello / Foreman.
• Review and test user integration with MS Active Directory.
• Windows, RHEL and HPUX integration with SCOM.
• Involved in monthly maintenance of Windows Servers with WinTel Team.
• Working with technologies like HTTP/HTTPS, NFS, SMB, DHCP and TCP/IP networking.
• SMTP ( Sendmail ) servers set up and troubleshoot.
• SAMBA for Linux and HP-UX.

Confidential

Consultant / Architect

Responsibilities:

• Server migration running Zimbra messaging platform for large ISP.
• Overall responsible for migration and troubleshooting for over 700 blade servers in 2 Data Centers.
• Involved in On-Call pager rotation and support.
• Working with Zimbra SMTP servers running on HP Blade platform.
• Responsible for changes while on-call.

Confidential

Sr. Linux Administrator / Consultant

Responsibilities:

• Administration and server maintenance running multiple RHEL versions 3, 4, 5.
• Administration of Solaris 10 servers for EMC project.
• Capacity planning, provisioning, upgrade and maintain RHEL on Dell and HP hardware platform (Systems are clustered and stand alone running Oracle DB 10g &11g and WebLogic ).
• Participate in planning for Hardware, Software upgrade and Virtualization projects:
• OS provisioning, upgrades and automation ( drivers, scripts etc. ).
• Application testing.
• Participate in Virtualization project using VMWare vSphere 5 with vCenter 5.
• Planning to virtualize current environment for WebLogic and Oracle DB servers.
• Responsible for 20 ESXi 5 with NetApp and FreeNAS backend storage.
• Responsible for 8 ESXi 5 with EMC storage.
• Administering NetApp 3100 and FreeNAS.
• Working with Apache setup HTTP/HTTPS, FTP, SMB protocols.
• Working with Technologies like TCP/IP, DHCP, NFS, CIFS and LDAP.
• Providing hardware support for servers based on Intel architecture, Interacting with vendors, customers, application developers and support.
• Participating in EMC LUNs setup for VMWare vSphere and Linux servers.
• Planning space requirement and assignment.
• Systems monitoring and troubleshooting using Nagios and LogAnalyzer.
• Systems Errata and critical updates with RH Satellite.
• Scripting, automation with Puppet with Foreman.
• OS and Applications tuning.
• Working with Red Had support to solve any problems that could cause servers downtime.
• Research for better solutions to minimize downtime.
• Licensing maintenance and Data Center planning.
• Server racking, including cables routing, patching and UPS maintenance.

Confidential

Systems Engineer

Responsibilities:

• UNIX Servers Linux RHEL-5 configuration and build using cfengine.
• Responsibilities included support for Zimbra messaging platform (over 9 million m/b) for large ISP.
• Overall responsible for troubleshooting over 400 servers in 2 Data Centers including number of test servers, as well as Veritas SAN mounts.
• RH Linux servers updates and patching with cfengine.
• Testing and integration of new open source software to help reduce cost.
• Involved in On-Call pager rotation and support.
• Responsible for changes while on-call or day to day work (OVSD system).

Confidential

Systems Engineer

Responsibilities:

• UNIX Servers (FreeBSD-6,7, Linux RHEL-3,4,5, Fedora 3) configuration, build and installation using kickstart, custom scripts and cfengine.
• Maintain packages repository for both FreeBSD and Linux.
• Custom kernel builds for Fedora 3 boxes.
• Maintain 12 DNS BIND Servers and 6 DHCP Servers.
• Setup, configured and maintain 12 DNS servers running in Virtual environment (VMware Server - 6 hosts, including 2 testing VMware hosts).
• Responsible for maintenance of 2 Sendmail servers and 8 Postfix Servers for International Enterprise Email system with MySQL Authentication.
• Responsible for troubleshooting and fix over 2000 servers in 2 Data Centers (Software and Hardware).
• Hardware refresh; Compaq to Rackables, cables, patching and server installation.
• Testing and integration of new open source software to help reduce cost.
• Was involved in On-Call pager rotation with 24/7 support.

Confidential

Server Engineer

Responsibilities:

• Experienced with UNIX (FreeBSD, AIX, Linux) enterprise IT security.
• Experienced with Windows Server 2003, 2000, NT installation & configuration.
• Linux (RHEL-3.x), FreeBSD, AIX administration, testing, scripting.
• Responsible for enterprise consolidation of physical servers to virtual sessions.
• Extensive experience with VMware ESX-2.x server installation, configuration and fault tolerance.
• Extensive experience with troubleshooting IBM X-series 445, 346 and Compaq proliant DL380 G2 and G3 servers.
• Experienced with multiple Windows NT domains. Active Directory enterprise user registry design, administration and maintenance.
• Experienced with DMZ network solutions - Proxies, Firewalls, WINS, DNS, and DHCP.
• Enterprise Frame Security, ID management and Storage monitoring (shell and perl scripting).

Confidential

Systems Manager

Responsibilities:

• Apache and Tomcat installation, configuration and administration of UNIX (FreeBSD, Linux) Servers.
• Monitoring, troubleshooting LAN/WAN (CISCO Routers and Switches) and Network usage with MRTG in multi-home environment.
• Configuration and installation of MySQL on FreeBSD/Linux servers.
• DHCP, DNS, WINS Administration.
• DNS on FreeBSD 4.9 (BIND8).
• 2 qMail servers with LDAP Authentication on FreeBSD.
• Sendmail and Postfix servers in cluster environments.
• Security and Firewalls: Setup and administration Firewall, NAT and DMZ, necessary security updates and upgrades for Applications and OS.
• IIS 5 Installation, configuration and Administration, running on Win2003 Servers.
• Participate in a 24x7 on-call phone/pager rotation
• Complete installation of rack shelves, cabinets and servers, cabling and patch panels.

Confidential

Systems Engineer

Responsibilities:

• IIS/Apache Web Servers Administration, running on WinNT-4.0/2000 and FreeBSD.
• PDC/BDC administration, end-user support in WinNT 4.0 environment.
• Active Directory administration on Win2000 server.
• Configuration, installation and administration MSSQL 6.5 and 7.0.
• Implementation and testing Win2000/FreeBSD Servers for LAN and Internet.
• UNIX, Windows and SQL servers backup.
• DNS on Solaris 2.6, FreeBSD 3.X/4.X (Bind 8).
• Security based tasks: Server security monitoring, applying patches and updates, software installation.

Confidential

Network Administrator

Responsibilities:

• Install/uninstall, configure modems, PCMCIA card and 3Com netcards under Win95, WinNT4.0(Server and Workstation) on IBM clone, Macintosh and other IBM PC compatible Hardware.
• Configure Network printers for NT 4.0 and Novell 4.x.
• Backups of all Novell 4.0, NT 4.0 servers and printers configuration using ARCserve software.
• Third level Technical Support for 3Com/U.S.Robotics product.

Confidential

Network/PC Technicia

Responsibilities:

• Experienced troubleshooting hardware issues with computers, monitors and printers.
• Installation of Hardware and Software: Win95, WinNT4.0, DOS and Win3.11.
• LAN wiring and installation.