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Senior Linux Administrator Resume

SUMMARY:

  • I am a Senior UNIX/Linux Technical Infrastructure Engineer with over 20+ years’ experience. Managed multiple flavors of UNIX/ Linux systems over the years, and I am currently managing an environment that consists of RHEL, SUSE Linux, Ubantu, Solaris, AIX, Confidential - UX and VM ware along with SAN/NAS storage. Experienced in Managing Services (Technical Lead/Program Manager) with project management, SDLC, change management, policy and procedure creation process, documentation skills.
  • 20+ of total IT exp, out of which 16+ years of Technical Lead/systems support experience in heterogeneous UNIX systems.
  • Domain expertise in Automobile, Manufacturing, Healthcare, Telecom, Insurance, al and Public Sectors.
  • Good background in project/program management with a focus on business solutions. Vast interdisciplinary experience in Data Centre Operations, infrastructure management in both domestic and international markets.
  • Conducting quality survey with respect to IT support and updating the IT Head, designing Process Documents for the IT team
  • Ability to handle multiple complex tasks with tight deadlines concurrently. Detailed understanding of emerging infrastructure technologies and solutions. Conducting the IT Induction program for the new hires.
  • Wide experience of infrastructure technologies and strong relationships with major IT Vendors Oracle, Sun, Microsoft, IBM, Red Hat, NetApp and VMWare.
  • Having Good Knowledge on AWS cloud.
  • Client facing and resolving client related issues concerning Clients Outsourced / Managed IT services.
  • Setting / managing the complete SLA & OLA of the outsourced / managed IT services and reporting, analyzing Capacity Management and forecasting to meet managed services SLA's.
  • Experience in handling multiple teams & accounts (onsite/offshore).
  • Experience providing system administration support for enterprise business applications including financial, engineering, web applications. These include Oracle, DB2, SAP, People soft, Web logic, Web Vsphere, and Apache.
  • Automating configurations of Linux infrastructure using DevOps tools Chef, Zabbix, Rundeck, Audit.d, syslog and Ansible.
  • Complete server administration and architect tasks on Linux (Redhat, SUSE, Ubantu)) and documentation for the projects
  • Hands on knowledge on Source Code Management SVN, GIT
  • Experience in installing VMWare ESX, patching ESX and involved in upgrades on enterprise servers, Good working knowledge of network & UNIX security procedures
  • IT Service Management (project, service catalog, change and incident management) interaction with customers, stake holders communication, other support teams and vendors on projects supporting 24x7 systems.
  • IT Service Management (project, service catalog, change and incident management) interaction with customers, other support teams and vendors on projects supporting 24x7 systems.
  • Architecting, installing, configuring, monitoring, upgrading and supporting Red hat Enterprise Linux infrastructure running as VMware ESX virtual servers in a 24/7 mission critical environment
  • Networking experience architecting, integrating, monitoring, supporting and troubleshooting Web related systems in firewalled, load balanced Data Center Enterprise networks.
  • Installing and supporting Web related software applications on Linux servers.
  • Installing, configuring and supporting Linux servers running on Fiber Channel SAN and IP based iSCSI and Centera attached storage.
  • Day to day Administration of the Production, Staging, UAT, Development and testing Environments along with installation of Security s.
  • Flexible, result oriented and adapt to the environment quickly to meet the goals of the product and organization.
  • Good sense of team work, leadership quality, integrity, aptitude to learn and ability to put in sustained quality effort.
  • Strong experience with supporting systems in a SAN environment, including the following storage protocols: FC, NFS.
  • Strong understanding of system deployment tools such as Linux Kick-start, Solaris Jumpstart, and AIX NIM.
  • Strong ability to independently identify potential issues and remediation without supervision.
  • Experience in Installation, configuration, up gradation and supporting Linux servers running in Vmware Environment.
  • Ability to follow and adhere to policies, procedures and standards relating to Systems management.
  • Highly experience in installations, upgrading and maintenance of operating systems, capacity planning, performance management, monitoring, troubleshooting, problem determination and resolution, User account management, security.
  • Working with Senior Storage Administrators on review of entire environment and executing initiatives to reduce failures, defects and improving overall performance.
  • Have strong leadership qualities, technical skills and goal oriented. Good in coordinating with the team members and management. Quick learner and adaptable to complex work environments.
  • Experience in installation, configuration, upgrading, system hardening, performance tuning, monitoring and troubleshooting and supporting on UNIX/SUSE/RHEL Linux servers. In an enterprise, Data center Environment.
  • Proficient in UNIX shell programming, patches installation and trouble shoot the cause of failure and monitoring of logs on UNIX systems. Good exposure on Oracle, DB2 databases, System Admin, AOL modules, Installation and configuration of Oracle RAC, Lotus Notes Domino and other applications.
  • Infrastructure Management
  • Service Delivery
  • Team Management
  • Project Management
  • Worked in a fast-paced 24x7 production environment comprising RHEL/SUSE, Ubantu Linux, AIX and Solaris servers, have well planning and able to prioritize work ethic and ability to see projects deadlines through to completion.
  • Providing technical support for the UNIX environment and perform quality scans to understand server vulnerabilities and take corrective action.
  • Proficient in UNIX shell programming, patches installation and trouble shoot the cause of failure and monitoring of logs on UNIX systems.
  • Experience in SUDO administration, creation of Volume groups, logical volumes, file systems, trouble shooting file system mounting problems, Implementing RAID levels, user account management and SSH Implementation
  • Configuration and maintenance of SFTP, FTP/FTPS, DHCP, SNMP, TCP/IP, UDP, RAID, NIS, NFS, DNS, Send Mail, Tivoli Storage Management, Veritas Volume Manager, Veritas Net backup, Veritas Clusters, HACMP clusters, Application Servers on Unix and Windows Environment
  • Handling planned and unplanned downtime, outages and major Incidents send Incident report to management and follow up to resolution.
  • Performing OS Installation, migration, up-gradation and maintenance of UNIX servers, from Operating System implementation to application & database implementation, take centralized backups & restore them, applying APAR fixes, patches and service packs.
  • Perform capacity planning, system design, planning and implementation, hardware, OS related, network and application level troubleshooting, domain administration, system and network-level performance monitoring and system tuning.

TECHNICAL SKILLS:

HARDWARE: IBM P550/570//P670/690/, Sun fire 12K, 6800/4800, E10K/6500, V880/ V480/ V210/ E450/ E220R/A1000/A5000/D1000/T3/rp7420/rp8420/ Sunstore Edge L700/EMC Symmetrix DMX800, IBM Shark 2105, IBM SVC, NAS, Switches, Linux x series, p series, Blade servers, Storage Tek Tape Library, KVM consoles, VMware ESX 5.x/4.x/3.x, Cisco Gateways, Cisco Switches/Routers, Nexus 7x, CUBE-SP, Ipflex, Confidential servers, Dell servers and Windows servers

OS: RHEL 7.x/6/x/5.x/4.x/3.x, RHEL AS/ES, Linux 9.x/8.x/7.x, SUSE Linux, 11.x/10.x/9 VM ware ESX 5.x/4.x/3.x, Ubantu, Solaris 10.x/9.x/8.x,AIX 6.x/5.x, Confidential -UX 11.x/10.x, Windows NT/ 2008/2003/2000/98/95 , Windows Server, and MS-DOS

LANGUAGES: C, SQL, PL/SQL, AND COBOL. UNIX Scripts

DATABASES: Oracle 10g/9.x/8.x/7.x, DB2, UDB, SAP, SIEBEL, People soft, SQL Server 7.x/6.5, Sybase 4.x, MS access

GUI: Developer 2000, Visual Basic 6.x/5.x

WEB: ASP, HTML, Java Script, Jscript and VBScript

PRODUCTS: UC Central, Alcatel-Lucent, CUCM, CUOM, UM, VOSS, Netapp, ACME

TOOLS: S4 Access, Websm, VCS GUI, Exceed, Reflections, X manager, TOPAS, NMON, Glance plus OEM, SQL Plus, iostat, SAR, top, net stat, vmstat, CA Access Control, RTMT, Nagios, Dtrace, MySQL, Etrust, putty, SSH, HPOpen view AutoSys, AIX ODM, RunDeck, OSSEC, Zabbix, Stealth, Auditd, Ansible, CHEF, Puppet. Spacewalk, Redhat Satellite, Graylog, IDS, IMAP, CLUES, Pentasafe, VPN SQLloader, F5 Load Balancers, ILO, DRAC, TRIPWIRE, Crystal Reports, IBM RSA, SAN/NAS Storage, SVN, GIT, Maven, Jenkins, send mail, O365, jira, confluence and BMC Patrol.

ERP: Oracle Applications (11.x/10.x)

HA: VERITAS Clusters, Sun Clusters, MC Service Guard and HACMP

FILE SYSTEMS: VERITAS Volume Manager, Solstice Disk Suite, Confidential LVM, SVM, IBM LVM, JFS, JFS2, GPFS, UFS, NFS and VMFS

BACKUPS: VERITAS Net backup, Tivoli Storage Manager

SCRIPTING: SED, AWK, Bourne, Korn and PERL

NETWORKING: SQL*N ET, Net8, TCP/IP, UDP, Fiber Channel. DHCP, DNS, NFS, NIS+, FTP/FTPS, Ethernet/Fast Ethernet/Gigabit networks; SCCP, RTP and SIP

WEB SERVERS: Web Vsphere 7.x/6.x/5.x, Web logic 10/8.x/7.x, Tomcat, Jboss, CVS, Apache, I planet 6.x, and IIS 6.x/5.x/4.x

PROJECTS PROFILE:

Confidential

Senior Linux Administrator

Responsibilities:

  • Installation, configuration, monitor, administration and maintenance UNIX/LINUX servers in an enterprise environment (RHEL 7/6/5/4, SUSE 11/10/9, VMware, AIX, Solaris, Confidential -UX) with SAN/NAS infrastructure across multiple sites for business-critical applications.Vsphere
  • Experience in Stealth Install/upgrade/Un Installs, request stealth service accounts, update COI’s on RHEL/VMware environments
  • Work with VMware Infrastructure Client in supporting our Linux Enterprise and Windows environment.
  • Configured, deployed, managed and trouble shoot servers and Virtual Machines
  • ESXI and server maintenance project with a scope covering over 2500+ VM's and servers.
  • Installed several hot fixes and patches on Linux servers and windows servers to eliminate vulnerabilities.
  • Created clones from existing VMs (both live and powered-off)
  • Deployed several VMs from Templates and customized their configurations as-needed.
  • Deploy VMware security/bug fixes to ESXi hosts and MS Security patches to Windows servers including service packs, and perform any other planned maintenance activities on an established cycle
  • Installing Vm
  • Installation of ESX server and creation of VMs and install different guest OS.
  • Updating ESX host’s using Vmware Update manager.
  • Experience in in a fast-paced 24x7 production environment comprising RHEL/VMware/SUSE Linux, Ubantu,AIX and Solaris.
  • Experience in Architect, Implementation, monitor and support automation routines to centrally patch data center Test, Staging, and Development & Production RHEL/SUSE environments using spacewalk, Red Hat Satellite or SUSE Manager.
  • Experience Confidential well planning, able to prioritize work ethic and ability to see projects deadlines through to completion.
  • Experience in Architect, Implementation, monitor and support automation routines to centrally configure data center Test, Staging, Development & Production RHEL/SUSE environments using Chef, Zabbix, Run Deck, OSSEC, Auditd and syslog.
  • Wide experience of infrastructure technologies and strong relationships with major IT Vendors VMware, Red Hat, SUSE, Oracle, Sun, Microsoft, IBM, NetApp and VMware.
  • Bootstrapped new VMware Vsphere ESX hosted virtual machines created from clones.
  • Installation and configuration of VMware tools, VM snapshots for quick restore purpose before every CHG control and/or before any changes to system configurations or installations.
  • Access permissions are delegated for users with sudo and ACL file permissions
  • Experience Confidential Servers consolidation and virtualization using VMware virtual infrastructure, VMware ESX and VMware Venter.
  • Experienced in the environment of 2000+ UNIX servers consisting of different flavors of UNIX
  • Used Zabbix console monitoring before and after stealth agent install to review and monitor the Linux management agent tools communications with the enterprise Linux servers
  • Decommissioned Linux servers using standard operating procedures and updated ITSM CMDB.
  • Experience in Spacewalk and Redhat Satellite to patch servers. Manually installed patches using yum installations and to monitor when automation routines didn’ Confidential go through as part of exceptions
  • Managed Splunk user accounts, installing Splunk Universal Forwarder, Heavy Forwarder Agents, creating file systems for splunk, permissions to the splunk user/groups.
  • Reviewed OSSEC architecture, Zabbix server properties with a goal to architect new automation routines to monitor and support all the enterprise Linux servers and to classify the servers according to agency or cluster
  • Reviewed leading daily production calls to provide status to management on the day-to-day critical problems.
  • Experience in installing VMware ESX hosts (ESX 3.5, Vsphere 4 & Vsphere 5.0) in Confidential Blades/non-blade servers.
  • Server hardening like Separate partitions, Limit user accounts, proper backups, not permit empty passwords, OS up to date, especially security patches, Minimize unnecessary software, network ports.
  • Experience in Bash/Shell scripting for easy administration like startup scripts, killing scripts, Performance Monitoring scripts
  • Experience providing system administration support for enterprise business applications including financial, engineering, web applications. These include Apache Tomcat, Apache HTTP. Oracle, DB2, SAP, Web logic, Web Vsphere
  • Experience in installing VMware ESX, patching ESX and involved in upgrades on enterprise servers, Good working knowledge of network & UNIX security procedures
  • IT Service Management (project, service catalog, change and incident management) interaction with customers, other support teams and vendors on projects supporting 24x7 systems.
  • Architecting, installing, configuring, monitoring, upgrading and supporting Red hat Enterprise Linux infrastructure running as VMware ESX virtual servers in a 24/7 mission critical environment.
  • Creating SVC accounts in the Active Directory Environment.

Confidential, Lincolnshire, IL

Sr. Consultant

Responsibilities:

  • Experience in installing VMware ESX hosts (ESX 3.5, Vsphere 4 & vVsphere 5.0) in Confidential Blades/non-blade servers.
  • Experience in SUDO administration, creation of Volume groups, logical volumes, file systems, trouble shooting file system mounting problems, Implementing RAID levels, user account management and SSH Implementation.
  • Experience in installation, configuration, upgrading, system hardening, performance tuning, monitoring and troubleshooting and supporting on UNIX/RHEL/SUSE /Ubantu Linux servers. In an enterprise, Data center Environment.
  • Installation, configuration and administration of VERITAS Volume Manager, VERITAS Clusters
  • Driving resolution for defect calls on various open problems from development and prioritizing the defects for maintenance releases in discussion with customer.
  • Configuration of TCP/IP, DNS, FTP, Telnet on UNIX servers. Setting up of DNS, DHCP, NFS, NIS services and configuration
  • Experienced in the environment of 2000+ UNIX servers consisting of different flavors of UNIX.
  • Collaborate with the team members and senior management to maintain a continuous stream of information regarding IT projects, infrastructure availability and incidents impacting business.
  • Regularly interact with clients on process related issues, SLAs and tried to achieve client satisfaction by enhancing performance and ascertain areas of potential dissatisfaction.
  • Installed several application software, handling troubleshooting, user management and hardware support, backup and restore patches, upgrades in RHEL/SUSE, Solaris, Confidential -UX, AIX, VM ware ESX 3.x/4.x.

Confidential, Atlanta, GA

Sr. Technical Infrastructure Engineer

Responsibilities:

  • Collaborate with the team members and senior management to maintain a continuous stream of information regarding IT projects, infrastructure availability and incidents impacting business
  • Extensive involvement & interaction with clients Confidential for relationship management. Regularly interact with clients on process related issues, SLAs and tried to achieve client satisfaction by enhancing performance and ascertain areas of potential dissatisfaction
  • Responsible for initiating, planning, executing, monitoring and controlling projects as per stipulated schedules and within budgeted allocations
  • Performing Audit on Alarming on Confidential & Confidential Data Center - Tested and configured SNMP/SYSLOG alerting
  • Creating CBUS rules which automatically distribute notifications and create ticket in AOTS
  • Performing health checks, Base line verification tests, Auditing, trouble shooting on ALU Devices (SDM, ISC, IAS)
  • Handling & Coordinating MHO, Remote hands, network, DBA, UC voice teams
  • Sending leadership notifications on outages to the respective teams
  • Debugging UC central client issues via tracing, log collection servers
  • Creating Job aids, uploading to WIKI. Troubleshooting VizGems Confidential & Confidential EMS monitor alarms.
  • Supporting Alcatel Lucent, ACME, Netapp Environments
  • Server hardening like Separate partitions, Limit user accounts, proper backups, not permit empty passwords, OS up to date, especially security patches, Minimize unnecessary software, network ports
  • Performing standalone physical operating system deployments as well as virtual using VMware (ESXi)
  • Performing required storage maintenance according to NetApp/EMC best practices.
  • Developing documents and enforced standards for storage support and management.
  • Providing secondary administration support for various network appliances including Cisco switches & firewalls, F5 load balancers,
  • Installation, configuration and maintenance SUSE Linux 10.x, Red Hat Enterprise Linux 3.x, 4.x, BIOS upgrades, Patch/Package administration for production environments.
  • Co-coordinating all Data centers Management team for Hardware Change Management, Support Vendors, Business Partners, Customers, Remote Hands, and Storage, Tools teams.
  • Experience in installing VMware ESX hosts (ESX 3.5, vVsphere 4 & vVsphere 5.0) in Confidential Blades/non-blade servers.
  • Experience in configuring NFS mounts point and iSCSI storage to the vVsphere hosts.
  • Migrate 200+ VMware ESX 3.5 hosts to vVsphere4.1 U2 using VMware Update Manager.
  • Deploying Voice over IP Solution for various customers, each with distinct requirements including but not limited to Cisco Communications Manager centralized cluster with remote sites running SRST functionality.
  • Executing several implementations of Cisco Call Manager and Unity Connection.
  • Solving call routing, number translation, and call handler issues. Implementing Cisco Unified Communications Manager Applications like CUPS, UC Central client, Extension mobility and Auto Attendant as per customer requirements

Environment: SUSE Linux, 11.x/10.x, RHEL 5.x/4.x/3.x, Linux 9.x/8.x/7.x, Ubantu, VM ware ESX 4.x/3.x, AIX 6.x/5.x, Solaris 10.x/9.x/8.x, Confidential -UX 11.x/10.x, Confidential DL 580 G7, Confidential BL460C G6, Confidential Blade Enclosures, VERITAS Volume Manager 4.x/3.x, VERITAS Clusters 4.x/3.x, VM Clusters, ALU, ACME, NetApp FAS 3170, Nexus 7K, F5, Cisco Switches, Routers, Gateways, CUCM, VOSS, CUBE-SP, RTMT, UC Client, Oracle, CVS, Web Vsphere 7.x/6.x/5.x, Tomcat, Jboss, Apache, Java and HACMP

Confidential, Detroit, MI

Engagement UNIX Solution/Hosting Engineer

Responsibilities:

  • Create Build Sheets for new servers, middleware Components, VMware virtual machines, and Solaris zones.
  • Create SAN/NAS storage requests new servers, Databases, create Network Request to engage - Network/Firewall Engineers
  • Review/validate infrastructure/network/firewall/storage requirements with Application /Network Team
  • Submit Load Balancer, Firewall and Network requests for implementation.
  • Review and provide recommendations to fix Security Vulnerabilities & Compliances identified during IIS/ Qualys /TSS Security scans.
  • Assist Project Manager to complete P2P (Promote to Production) activities.
  • Create/Maintain Engineering Project repositories/schedule in Star team and Microsoft Project Server
  • Create Server name & Placement form to obtain IP, VLAN, DNS name, Rack Locations.
  • Register IP & Name by submitting ROARS/IPAM Request.
  • Attending meetings with the Project Manager, Client and associated teams to review and clarify any doubt regarding the SOS request and documentation.
  • Getting the necessary information from Operations Team and System Administrator: ip/ ifconfig, switch/ports ids, device location, cables identification, using this information to complete the decommission cut sheet that will be provided to network team, to complete the information provided in the NOTA request.
  • Researching the information for the CIs being decommissioned on the standard “EDS-Research Tools” (ADMS, Webwerks, Star Team, CVS, etc).
  • Submitting NOTA request with the necessary (Server info, Location, WBS code, MOC/RC, Load Balancer rules (VIPs, Pools, NATS and Routers) /Firewall rules, IP info, removal of switch sets (Ports, VLANs), technical contacts to have the Network Engineer engaged.
  • Once the network activities are completed then IPs are returned, then submitting the ROARS form to return the DNS entries, Informing Project Manager once the NOTA, DNS requests are completed. Maintaining MS Project Server schedules, storing the project work authority in the Star Team approvals directory for all UNIX/LINUX servers.

Environment: Solaris 10.x/9.x/8.x, SUSE Linux, 11.x/10.x, RHEL 5.x/4.x/3.x, VM ware ESX 4.x/3.x, AIX 6.x/5.x, Confidential -UX 11.x/10.x, Linux 9.x/8.x/7.x, VERITAS Volume Manager 4.x/3.x, VERITAS Clusters 4.x/3.x, Oracle, DB2, People soft, CVS, Web Vsphere 6.x/5.x, Web logic 10.x/8.x, Tomcat, Jboss, Apache, .net, Java and HACMP

Confidential, Chicago, IL

Sr. UNIX Administrator

Responsibilities:

  • Coordinated with project team, program leads, and business partner reps to develop the documents for Implementation Strategy, Implementation Plan, Implementation Back out Plan, Implementation Checkout List, Implementation Contact Listing, Post-Implementation Checkout plans etc.
  • Provided 1st through 3rd level UNIX and Linux support to all business units, including software development desktops and servers; as well as corporate infrastructure.
  • Experienced in High Availability (HA) solutions, backup and recovery, performance tuning and capacity planning.
  • Configured and implemented an enterprise Red Hat Linux Kick starts DVD based installation to automate installation of RHEL workstations and servers.
  • Reviewed and standardized all UNIX hardware and software support contracts and maintenance agreements, resulting in significant cost savings for the company.
  • Experienced in working with file systems such as UFS, JFS, VXFS, Ext 3
  • Experienced in creating VMware templates and Cloning VMs.
  • Experienced deploying VMs using VMware templates.
  • Extensive experience in configuring VMware Cluster with HA and DRS enabled.
  • Converted around 120+ servers from Physical to Virtual (P2V) using VMware Converter and decommissioned around 50+severs during Data Center Migration project.
  • Installation, configuration and administration of VERITAS Volume Manager, VERITAS Clusters, HACMP
  • Installed, configured and maintained SUSE Linux 10.x, Red Hat Enterprise Linux 3.x, 4.x, BIOS upgrades for production environments,
  • Experienced on creating mksysb, NIM administration, and maintenance and performance analysis on AIX servers.
  • Installed several application software, handling troubleshooting, user management and hardware support, backup and restore patches, upgrades in Solaris, Confidential -UX, AIX, SUSE/RHEL, VM ware ESX 3.x/4.x
  • Experienced in Transition the systems by following the process and Procedures
  • Involved as a subject matter expert (SME) on systems problem (RSA) resolution activities
  • Managed account request process for all environments. Monitors system security, investigates security incidents.
  • Responsible for system resource allocation, tuning the OS (cpu, disk, memory and paging, swapping)
  • Experienced in the environment of 2000+ UNIX servers consisting of different flavors of UNIX.
  • Documented installation procedures, changes required in present environment.
  • Leading daily production calls to provide status to management on the day-to-day critical problems.
  • Driving resolution for defect calls on various open problems from development and prioritizing the defects for maintenance releases in discussion with customer.
  • Installed, configured, managed, NIM server and installing clients using NIM recourses
  • Experienced in configuring and maintaining openSSL
  • Installation and configuration, trouble shooting of Veritas Volume Manager On Solaris
  • Written different scripts for easy administration like startup scripts, killing scripts, Performance Monitoring scripts
  • Configured TCP/IP, DNS, FTP, Telnet on Unix servers
  • Setting up of DNS, DHCP, NFS, NIS services and configuration
  • Experienced networking and security infrastructure setup in AIX, Solaris, and SUSE/Red hat Linux.
  • Coordinates implementation of tested system changes with functional teams to determine priorities, schedule new builds and releases
  • Leading incident bridges for immediate issue resolution on severity 1 tickets.
  • Ensured releases are performed with consent from business and involve business users for post release functional testing
  • Preparing monthly reports, weekly status updates on volume of tickets opened /closed. Provide support to the incident management team to rapidly identify and troubleshoot problems so as not to delay the implementation timelines.
  • Experienced in multi-pathing software such as Veritas DMP.
  • Installed, configured and maintained Solaris, SUSE/RHEL, Confidential -UX, AIX production, dev, test environments
  • Writing and running the scripts to automatically watch the resources, CPU, memory, I/O, and paging space, Disk usage, OS of the systems, Status of the servers

Environment: Solaris 10.x/9.x/8.x, AIX 6.x/5.x, Confidential -UX 11.x, SUSE Linux 10.x, RHEL 4.x/3.x, Linux 9.x/8.x/7.x, VERITAS Volume Manager 4.x/3.x, VERITAS Clusters 4.x/3.x, Oracle, DB2, People soft, CVS, Web Vsphere 6.x/5.x, Web logic 10.x/8.x, Tomcat, Jboss, Apache, .net, Java, VMware ESX 4.x/3.x, and HACMP

Confidential, Peoria, IL

Sr. UNIX Administrator

Responsibilities:

  • 24/7 Data center support for Linux, AIX, Confidential, Solaris and VMware platforms.
  • Coordinated between L1/L2 onsite team and offshore India teams as an onsite coordinator.
  • Administration and troubleshooting all Unix servers running various business critical applications
  • Initiated change request calls for providing inputs to analyst and developers from customer perspective
  • Experienced in the environment of 1000+ UNIX servers consisting of different flavors of UNIX.
  • Managed a group of Managed Services, and executed Managed Services engagement with the customer.
  • Handled internal management and customer-facing engagement with the customer.
  • Single Point of Contact for Managed Services Engagement with the customer, responsible for meeting the SLA's agreement’s (Priority1...Priority 5) and proactive solutions to the customer for their IT infrastructure.
  • Support of components (Unix/Linux servers, storage, backups, networking).
  • Responsible to maintain 100% system availability and responsiveness to customer requests with no deviation to SLA.
  • Responsible to managing the team. Shifts, monthly change windows, meeting SLA's.
  • Handled a team of 20 in onsite & offshore by providing 24/7 support to the customer in order to meet SLA and the high availability
  • Configured Printers & Tape drives, adding SAN storage disks on Linux, AIX, Solaris
  • Experienced on tuning UNIX servers using tools including nmon, topas, svmon, iostat, and vmstat, SAR.
  • Installation, maintenance of patches upgrades, following the change management process in all Unix
  • Experienced in ITIL and Six Sigma processes
  • Supports application testing by tracking high severity defects, Coordinates release status with Dept execs and managers, business units, and prod support.
  • Problem resolution support, specific to systems/server issues; identifies and resolves system/server problems, coordinating with application users, DBA’s, Network teams to determine symptoms, ensure accurate problem definition.
  • Experienced in Zoning, ZFS file systems.
  • Experienced in development and improvement of operations’ plans, processes, procedures, standards, and priorities.
  • Implemented TSM v5.x enterprise storage product client on all UNIX platforms for backup and restore operations, monitoring, troubleshooting of TSM related issues and migrated the TSM clients to new TSM servers.
  • Setting up of DNS, DHCP, NFS, NIS services and configuration
  • Installation, maintenance and support of AIX, Linux, Solaris, and Confidential -UX based systems and related software.
  • Experienced on patch management tools with different vendors on different UNIX flavors.

Environment: AIX 5.x/4.x, RHEL 4.x/3.x Linux 9.x/8.x/7.x, Solaris 10/9/8, Confidential -UX 11.x, VERITAS Volume Manager 4.x/3.x, VERITAS Clusters 4.x/3.x, Oracle, SAP, Web Vsphere 6.x/5.x, Web logic 10.x/8.x, Tomcat, CVS, Java, Apache, VMware, Tivoli Storage Manager, IMAP and HACMP.

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