linux systems administrator Resume

Title
linux systems administrator

Primary Skills
linux systems administration, Apache, SAN, AWS EC2/S3

Location
US-WA-Seattle

Posted
Oct-26-09

Objective

A challenging and diversified senior technical position where I can utilize my experience in systems/storage infrastructure and customer service focus to effectively deliver world class technology and meet organizations goals.

Summary

Over 9 years of experience in Linux/Storage administration.

• ITIL Foundation Certified.
• Over 9 years of technical and project management experience in academic and cancer research institutions supporting bioinformatics and clinical infrastructures.
• Extensive experience in UNIX (Solaris, AIX and Linux) administration and enterprise class storage arrays.
• Experience in VMware and Amazon Web Services (EC2/S3)
• Strong communication skills, contract and vendor experience, ability to negotiate, and project management skills.
• Ability to establish cross-functional, collaborative relationships with researchers and clinicians.
• Experience in analysis of technology infrastructures, operations and systems integration.
• Ensure 99.9 % system uptime and manage technical-on-call rotation.
• Highly motivated, innovative and fast learner and can quickly adapt to new environments.
• Ability to work with project sponsors and stakeholders to define project requirements, scope, risks, and approach.

Summary of Technical Skills in UNIX and Storage Systems:

Linux (RedHat/CentOS, Debian/Ubuntu)

• Install, configure and maintain RedHat/Debian flavors of Linux Operating system.
• Manage software on the system using yum, rpm and aptitude tools.
• Install and configure various open source servers like Apache, Tomcat, Postfix etc.
• Performance monitoring using various tools like top, netstat, vmstat and iostat.
• Create, modify and delete users, groups, and policy. Escalate privileges. Establish collaborative group directories.
• Configure and access various consoles to manage system logging, time synchronization, printers, and task automation.
• Manage file systems using Software RAID and Logical Volume Management.
• Perform both interactive and automated installations of Red Hat Enterprise Linux.
• Configure, implement and secure access to Postfix SMTP servers.
• Implement secure access to system and network services using host-based access, SELinux, and system services management.

AIX (V 5.0 - V 5.3):

• Install Base Operating System and perform initial configuration
• Install, configure and manage HACMP clusters in highly productive manner.
• Install LPPs; Install, configure and upgrade software.
• Upgrade operating system (preservation & migration upgrades), create and install a mksysb.
• Configure and manage devices, resources, subsystems and subservers.
• Add/Modify System and User environment
• Manage Physical and logical volumes and File systems.
• Troubleshoot problems with hardware (LED codes, cfgmgr, ODM tools).
• Troubleshoot file system problems, paging space problems and device related problems.


Storage Systems (HP EVA 5000, EMC DMX 3000, Cisco/Brocade Fabric)

HP EVA 5000 SAN with Brocade fabric:
• Installed and configured Storage Management Appliance and upgrade Command View EVA software.
• Created Disk group and Vdisks for provisioning.
• Installed and configured SAN switches (Brocade OEM), and created Aliases and Zones and upgraded firmware on SAN Switches.
• Installed HBA's on Linux hosts and configured secure path (drivers) for failover capability.

EMC DMX 3000 with Cisco Fabric:
• Involved in the design and configuration of a 50 TB SAN using EMC DMX 3000 and Cisco MDS 9509 Fabric.
• Experience using Cisco Fabric Manager and EMC control center for allocating storage for servers.

Experience

Independent Consultant (January 2007 -- Present)

• Consultant, Open Gambit, LLC: Working as a consultant for Hawaii based software development company providing services to maintain their office network, desktops and server infrastructure.

• Consultant, Startup Company: Worked to design and implement application Servers (JBOSS & Tomcat) on Linux (CentOS) servers. Responsible for uptime of Web servers, backup, hosting and Database servers running Oracle 10g.

• Consultant, Cascadeo Corporation, Seattle, WA: Cascadeo is a consulting firm, which provides operational and engineering expertise to early and mid stage companies with complex data networking and hosting needs. Responsibilities included:
? Installed and Maintained Linux based Servers, Switches and Firewalls for Cascadeo and its clients supporting various applications.
? Installed and configured VMware Server on Ubuntu Linux and later migrated the entire server farm to VMware ESXi.
? Built and maintained VMware instances for DNS, Squid, Request Tracker, Apache/Tomcat servers and replicated across multiple hosts to achieve Failover and load balanced capabilities.
? Configured and maintained number of SonicWall TZ series Firewalls and Foundry ServerIron XL Loadbalancer for hosted customers.
? Created AMI's (Amazon Machine Image) on Amazon's EC2/S3 Clouding computing platform for testing.
? Responsible for resolving trouble tickets and document all project/task details.
? Ensure uptime for all hardware and applications.

Zenoss Implementation (Oct, 2007 - Dec, 2007): Designed and Implemented Zenoss Monitoring System for TelWest Network Services. Project involved monitoring of over 100 SNMP based Server/Network/Voice Equipment to ensure uptime and quality of services to its customers.
? SNMP configuration of devices to send data to Zenoss Server.
? Configured 24/7 Event notification and escalation rules for TelWest Helpdesk.
? Configured custom performance graphs for peer-to-peer links and monitored for different thresholds.
? Custom scripting for non-snmp based devices for notifications.
? Documented all aspects of the project and created quick troubleshooting tips.
? Currently working on updating to the latest version and will soon work on second instance of Zenoss for fail-over capabilities.

Mail Server Migration: (Jan, 2008-Mar, 2008) Cybermesa is an ISP serving residential customers for Internet and E-mail. I was responsible for design, implementation and later for migration from their legacy Mail server to support about 12,500 mailboxes.
? Designed a completely new mail server using Postfix, Courier IMAP/POP, Squirrelmail and Maildrop. Isolated each function of the mail server like incoming/outgoing SMTP Server, POP server, IMAP server, MySQL and Webmail Server on a separate instance of VMware running Ubuntu Linux and replicated multiples of each across number of Hosts (servers).
? Configured MySQL in Master/Slave replication which hosts data for user authentication, forwards, blacklisting and mailbox paths.
? Configured Maildrop for vacation notification and auto responds.
? Created VIP (Virtual IP's) on each instance and configured to loadbalancer behind a Foundry Loadbalancer.
? Configured a SonicWall 2040 to allow only the ports necessary for secure mail functioning.
? Created custom shell scripts for quota notification.
? Created a Zenoss instance to monitor disk space, services etc.


H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA (January 2004-Jannuary 2007)

Network Systems Analyst (Research), Technology Services.

• Project manager for implementation of over million dollars of Research IT infrastructure including SAN, database cluster, application and development servers. Worked diligently from gathering requirements, planning and designing to successful implementation on time.
• Supervised a small group of desktop engineers and programmers supporting Moffitt's Research faculty and staff.
• Member of Research IT steering committee providing valuable input to prioritization and resource allocation of Research IT projects.
• Documented all aspects of projects including requirements gathering, project planning, budget and risk assessment.
• Conducted Business Impact Analysis (BIA) with the help of SUNGARD, identifying functions and process that are essential to Research's day-to-day operations and analyze the financial, productivity and other effects of losing critical data and resources.
• Coordinated with HP to build a 42-node high performance cluster for compute intensive applications that various researchers use. Built a 10 node compute cluster for development purposes. Supported all aspects of cluster administration, including creating users, managing queues and installing applications.
• Managed the installation and maintenance all research specific applications like Spotfire, ISIS/HOST, Jaguar, Macromodel, mpiBLAST etc.
• Installed and maintained several enterprise class servers for the development of various bioinformatics applications based on Linux, Apache, MySQL, PHP, Perl and Python.
• Currently working on to build Laboratory Information Management System (LIMS) for all core laboratories at Moffitt Research Institute for online ordering, tracking and retrieval of data.
• Installed and maintained a HP SAN (EVA5000) to address growing storage needs for the researchers.
• Successfully installed configured and maintained an open source application ELF (Exchange of Large Files) on a DMZ Network for secure transfer of files larger than 10 MB up to 2 GB.
• Responsible for installation, configuration and maintenance of all AIX based servers supporting the most critical clinical applications like Cerner, Capstone, Pharmnet etc. Migrated several applications from Solaris environment to AIX.
• Extensive experience with IBM P-Series hardware, P595 and P670. Configured and installed LPARs (Logical Partitions), assigned hardware resources, installed AIX 5.2 and 5.3 and installed patches, PTF's and APAR's to address specific environment issues.
• Installed and configured AIX NIM environment and created BOS and application bundles for rapid server deployment.
• Performed microcode upgrades on P595, P670 service processors and firmware on all the adapters on the frame.
• Involved in design and configuration of a 50 TB SAN using EMC DMX 3000 and Cisco MDS 9509 Fabric. Experience using Cisco Fabric Manager and EMC control center for allocating storage for servers.
• Involved in planning and design of a new datacenter. Worked closely with datacenter manager to gather space, power and cooling requirements for all enterprise class storage and UNIX servers including IBM P595 & P670, HP EVA 5000, HP Integrity servers, and a 42-node high performance compute cluster.

St. Jude Children's Research Hospital, Memphis, TN (March 2002-January 2004)
Local Support Provider, Research Computing, Hartwell Center.

• Provided leadership and direction to other local support providers. Streamlined process for the end user to get IT support quickly and efficiently.
• Single point of contact for all research and faculty for all IT projects, various bioinformatics applications and new purchases.
• Performed primary Systems Administration function for a heterogeneous network consisting of Sun Enterprise servers, Linux Servers, Windows 2000 servers, Windows 2000 workstations and Linux Desktops.
• Worked closely with the Systems Engineering group to support various aspects of systems, storage and security.
• Played lead role in installing and configuring Symantec Ghost Console for system image and update deployment.
• Worked with the software development group to help analyze and determine hardware and server software for various in-house projects.

University of Memphis, Memphis, TN (January 2000- February 2002)
Network Services, Information Systems.

• Guided and trained a group of four graduate assistants. Managed their work schedule and assigned new projects.
• Installation, Configuration and maintenance of campus wide network switches. Performed Image and firmware upgrades for switches and routers (Cisco and Cabletron/Enterasys).
• Design and Configuration of wireless Networks (802.11b) using Lucent Access Point 2000. Authenticated wireless clients with RADIUS server and MAC address verification.
• Managed a few Windows 2000 and Redhat Linux servers for documentation, monitoring and file storage.
• Setup up an Intrusion Detection System using Snort, with a MySQL database, and Apache-SSL with A.C.I.D for reports and logical analysis of attacks on the network.
• Configure and maintained Packet Shaper 6500 for bandwidth management.
• Instructed a 12 week Enterasys Internship Program.
• Local Technical Service Provider for the department of Business and Finance.

Wayne State University, Detroit, Michigan (September 1999 -- December 1999)
College of Engineering, Network Operations

• Install computers and peripherals, troubleshoot and repair computers, upgrade operating systems and perform preventive maintenance on machines.
• Assist in installation and configuration of routers, switches and hubs, troubleshoot network problems, monitor network status, and update network documentation.
• Provided hardware and software support for students and faculty of College of Engineering.

Education

• M.S. in Engineering Technology, University of Memphis, Memphis, TN
• B.S. in Civil Engineering, Osmania University, Hyderabad, India

Skills

• Ability to organize and set priorities.
• Excellent troubleshooting, problem solving and interpersonal skills.
• Ability to identify tasks that require automation and automate them.
• Ability to work reliably and independently with a 24/7 mission-critical environment.

Project Management:
Proficient in Microsoft Office Suite, Microsoft Project and Visio. Excellent documentation skills using twiki.

Operating Systems:
UNIX (Solaris 8 & 9 and AIX 5.1, 5.2 & 5.3), Linux (Redhat 6.0 -- WS3.0, CentOS, Ubuntu, Gentoo) and Microsoft Windows (NT, 2000, XP & 2003 Server).

Network Services:
DNS (Bind v8 and v9), DHCP, NFS, SNMP, HTTP, FTP, VLAN, VPN.

Storage:
EMC Control Manager, HP Command View EVA, Brocade Fabric, Cisco Fabric Manager, VSAN.

Software/Applications:
Apache (V1.3 & V2.0), Tomcat (V4.0 & V5.0), Samba, Scali and Rocks (Cluster Management Suites), PBS, Solaris Disk Suite, Veritas Volume Manager, Netbackup.

Hardware:
IBM P-Series (P595 & P670), HP EVA5000, Brocade Switches, Cisco MDS 9216 and 9509, compute Cluster, HP Integrity and Proliant series, Dell PowerEdge Series.

Scripting:
UNIX Shell scripting, Perl and AWK.

Certifications
ITIL Foundation Certified


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