Manager Management
Resume:
Soner Capan
************@*****.***
Summary:
•A Senior Administrator with 6+ years of extensive experience in UNIX System Administration in Red Hat Linux (RHEL 3/4/5/6), AIX 5.3/6.1/7.1 Sun Solaris 8/9/10, and Win NT/2000 Servers.
•Extensive System Administration experience in heterogeneous environments comprising Linux, UNIX.
•Experience in RHEL/CentOS Manual and Automated (Kickstart) Server Installations both Physical & Virtual.
•Experience with VMware virtualization (Creating VMs, Vmotion, Snapshots, Managing Virtual Hosts)
•Performance monitoring via top, iotop, iostat, vmstat, free, sar, strace, sysbench
•Experience working with monitoring tools such as SiteScope, Nmon, BMC Patrol.
•Excellent in patch deployment and package installation via YUM and RedHat Satellite.
•Configuration of NIS, NFS, SAMBA, APACHE SERVICES in Linux & UNIX Environment.
•Expert in upgrades, installs, configuration and administration of security and monitoring tools on RHEL systems.
•Experience with SAN Storage adding and removing as needed.
•Extensive experience working with LVM (Managing PVs, VGs, LVs, Snapshots, Mirroring) as well as Filesystem Management.
•Advanced technical expertise of the Linux Operating System i.e. High Availability/Clustering, System Backup (Tivoli Backup Manager/NetBackup), Kickstart and Logical Volume Manager (LVM)
•Worked with server decommissioning and collaborating with change management team, application teams, firewall team and backup team.
•Excellent in Configuring and Administering NFS, SMTP, DHCP, DNS, and Samba in heterogeneous environment
•Coordinating with Vendor Support engineers to resolve high priority issues
•Setup, maintain and management of user accounts and groups according to the security needs and adding the packages and patches when needed.
•Initiating Backups on daily basis and monitoring the scheduled backups.
•Expert in Datacenter Operations including hardware, software setup monitoring, troubleshooting in a 24 x 7 mission critical environment.
•Expert in Incident/Change Management using Remedy, HP Service manager ticketing systems.
•Provide OS layer support to SQL, MYSQL, Oracle, Data guard and DB2 database while coordinating with database teams.
•Deploying BASH Scripts to automate tasks
•Experienced in Installation of Web Sphere Application server V3.5/4.0/5.x,6.x, IBM HTTP Server
•Configuring & Troubleshooting NFS Servers and Clients
•Managing/Monitoring System logs to resolve issues
•Implementation of Software & Hardware RAID levels 0, 1, 0+1, 5
•Good exposure to Network Storage Solutions like DAS, NAS and SAN.
•Experienced with Migrations i.e. SAN Refresh, OS Upgrades, P2Vs
Technical skills:
•Operating Systems: Linux (Red hat - RHEL 3/4/5/6), IBM AIX (5.3,6.1,7.1), HP-UX, Solaris, Windows, 03/00/NT4.0.
•Hardware: HP DL380 G5/G6/G7/Gen8, Dell Poweredge 1950, 2300, 2450, R810.
•IBM RS/6000, IBM Blade center, JS20, JS21, HS20, pSeries 570, 590, 595, 650, 630, 670, 780, 770, 750, 740, 730 SUN Enterprise 450.
•Web Servers: Apache (httpd), apache-tomcat, jboss, weblogic. Tomcat, Apache, WebSphere, Apache Http Server, IIS 4.0/5.0, MQ Series.
•Languages: Shell scripting Ksh & Bourn Shell, Korn Shell programming
•Databases: Oracle 8i/9i/10g, DB2, MS SQL SERVER 7.0/2000, SyBase.
•Networking: NIS, NFS, AutoFS, DNS. TCP/IP, DNS, DHCP, Cisco Routers/Switches
•Virtualization: VMware, Vsphere
•Additional: Splunk, Remedy MEM, Monolith, NOC solutions
Education:
Bachelor of Science - University of Edirne
Professional Experience:
Silver Spring Network, Chicago, IL July 2016 to Present
Unix/Linux Engineer
•Provide 24x7x365 operational support for all levels of Infrastructure (RHEL OS layer, DB, Application) used to deliver smart grid solutions to the customer (ComEd).
•Function in a cross-platform capacity to resolve all high priority issues (P1, Sev1) in a very fast-paced delivery-oriented environment. Coordinate with different teams on a regular basis and provide root-cause analysis as needed.
•Monitor all production networks, RHEL & Windows servers, Applications and services using a range of performance monitoring utilities i.e. Splunk, Multisite, Monolith, & Asure
•Respond to incoming Monolith & Splunk alerts as per standard operational guidelines
•Provided Tier 1 & 2 RedHat Linux Support for incoming customer escalations
•UNIX/Linux OS layer troubleshooting i.e. traffic bottlenecks, CPU & H/W Devices and Network analysis using ps, vmstat, free, sysbench, strace, iostat, netstat, sar, nfsstat and sar commands as well as 3rd party monitoring tools (nmon, Openview, SiteScope)
•Coordinating with SAN team to scan in and provision new LUNs on Oracle DB servers.
•Involved in Server decommission project as per the company procedures and updated the hardware inventory database.
•Worked with server decommissioning and collaborating with change management team, application teams, firewall team and backup team.
•Creating documentation for datacenter hardware setups, standard operational procedures and security policies
•Create/Close tickets via Remedy ticketing system. High output of tickets (20+ per day) and escalate to appropriate teams as needed. Maintain customer communication on a regular basis.
•Start/Stop Customer application components (AMM) to assist the customer in analyzing metrics (gas, water, electric).
•Filesystem management (LVM) and monitoring disk usage. Archive and zip files to reserve space (i.e. tar, gzip, bzip2).
Capital One, Richmond, VA May 2014 to Jun 2016
Sr. Linux/UNIX System Admin
•Provided Linux operational support for over 70 Oracle Database Appliances and 9 Oracle Exadata Machines running on Redhat Linux 5/6 Platform
•Performed installation, configuration and upgrade of Redhat Linux 5/6, Cent OS 5.7 operating systems. Automate server installs via Kickstart & PXE. Provide final checkout of fresh installs prior to server turnover.
•Worked on ESX and VM storage issues and also coordinated with the storage admin team.
•Involved in running health checks of servers prior/post patching to ensure system integrity following reboot.
•Coordinating with SAN team to scan in and provision new LUNs on Oracle DB servers.
•Involved in Server decommission project as per the company procedures and updated the hardware inventory database.
•Creating documentation for datacenter hardware setups, standard operational procedures and security policies
•Installed and administered DNS, NFS & HTTP servers. Maintaining appropriate configuration files/entries as needed.
•Experienced in troubleshooting bottlenecks of Memory, CPU issues, Device and Network performance using ps, vmstat, iostat, netstat, sar, nfsstat and sar commands.
•Package management using RPM, YUM and UP2DATE in Red Hat Linux via Red Hat Satellite Server. Configured YUM repositories to select patches through RedHat Network (RHN).
•Worked on Firewall implementation & Monitoring security vulnerabilities within RHEL systems.
•Managed OS storage via LVM. Creating and resizing volumes and filesystems as needed. Maintaining filesystem integrity and closely observing disk utilization and filesystem space.
•Coordinated with DBAs for provisioning ASM Storage on RHEL Servers along w/ RAC installations.
•Scheduled tasks via crontab
•Worked with the LDAP servers which authenticated (w/ Kerberos) all Linux machines in the environment.
•Responsible for monitoring and working on incident/change tickets within UNIX queue with BMC Remedy (High daily output).
•Responsible for providing root cause analysis as well as documenting any solutions for future reference or cross-team collaboration.
•Worked on customer tickets which were related to our application suite and assisted application team with any configuration changes.
•Configured the systems for TCP/IP Networking with the existing LAN
•Write and Deploy custom BASH scripts to automate daily tasks.
•Administered user & group accounts. Updated sudo entries to grant appropriate system privileges.
•Process management and job control. Ensured system service functionality. Renicing heavy Mem & CPU craving processes to ensure system integrity.
•Maintained system security within the environment while allowing users to access all data and software remotely
•Involved in supporting Apache, Apache Tomcat and generated SSL keys for renewing SSL certificates on web servers.
•Provided L2 support, 24x7 on-call/Remote Support for Linux Production problems on weekly rotational basis.
ObamaCare, Reston, VA Nov 2013 – Feb 2014
Linux / UNIX System Administrator
•Provided on-call support by rotation to provide 24x7x365 support within a 3000 server environment.
•Experience working with Red Hat Linux (RHEL 3/4/5/6) and IBM AIX (4.x/5.x/6.x/7.x).
•Administration of RHEL 5 including installation, configuration, testing on both physical and virtual machines.
•Expert in Datacenter Operations including hardware and software setup, monitoring, and troubleshooting on a 24 x 7 basis. wi
•Experienced with Remedy, and HP Service manager ticketing Systems.
•Utilized Remedy for data center service requests (Network requests for IP’s, ILO’s, and DNS changes).
•Performing change management as per company standards in accordance with the hardware provider (IBM).
•Attended team meetings, change control meetings to update installation progress, to track upcoming changes in the environment.
•Reporting ticket status and communicating with requestors & Application/Server owners over Voice conference bridges in case of P1 or Sev1 issues
•Setting up cron schedules for backups and monitoring processes.
•Automate server building via PXE, Kickstart and Jumpstart for Solaris and RHEL Servers.
•Excellent in patches and packages installation on Linux/Unix Environment
•Build, configure and deploy Virtual machines and templates using Vsphere.
•Setup and configure failover load balancing using IP bonding for network cards.
•Working on Volume management, Disk Management, software RAID solutions. File system Tuning and growing. Coordinated with SAN Team for storage allocation and DM Multipath.
•Used IPtables to set up, maintain, and inspect the tables of IPv4 packet filter rules in the Linux kernel.
•Experience in IPtables commands to add, append, delete, insert, or replace rules within a particular chain. Applying parameters to construct packet filtering rules.
•Configured volume groups and logical volumes, extended logical volumes for file system growth needs via Logical Volume Manager (LVM)
•Experience in Linux kernel configuration as well as updating kernel parameters.
•Updating YUM Repository to download/install all necessary rpms to keep systems up to date.
•Monitored Linux server for CPU Utilization, Memory Utilization, and Disk Utilization for performance monitoring.
•Capturing the image of production server, Configuring RAID and build outs of new servers using the Satellite Server with PXE boot.
•Installation and configuration of Redhat Device Multipathing to provide storage solutions.
T-Mobile, Glen Allen, VA Apr 2011 – Oct 2013
Linux Administrator
•Worked as System Administrator on Linux/AIX - UNIX platforms.
•Configuration of NIS, NFS, SAMBA, SENDMAIL, APACHE SERVICES
•Administered Linux servers Linux (Red hat - RHEL 3/4/5) to provide OS level Application and DB support including managing Apache/Tomcat server, mail server, MySql database, and firewalls in both development and production environments.
•Install and configure hardware and RHEL software to all servers in the network as per client specifications
•Applying and Updating patches as needed via RedHat Satellite
•Monitor servers and deploy Linux performance scripts regularly and troubleshoot traffic bottlenecks, poor performance, and any error messages within OS/application logs.
•Installed and tested the latest software for end-users.
•Installed, configured and managed VMware infrastructure (ESXi, Virtual center)
•Install and configure various services including DHCP, NFS, DNS, Apache Web Server, NIS, LDAP, Samba, SSH, FTP/SFTP, Sendmail/SMTP.
•Responsible for resolving network issues using network tools such as ping, tcptraceroute, traceroute, tcpdump, nslookup.
•Develop Linux shell scripts to complete redundant tasks
•User administration with limited and full system privileges. Create and manage sudoers and PAM entries.
•Setup NFS and Samba File sharing between Linux and Windows servers.
•Working closely with Oracle DBS’s, Networking Team, QA Team and Developers.
•Expertise in planning & executing OS Upgrades
•Expertise in Installation, Configuration and Maintenance of VIO Servers versions 1.5, 2.1, 2.2
•Strong understanding of server security practices and tools with an emphasis on SUDO rules configuration, SELinux context, Firewalls, PAM, 3rd party security software (McAfee).
•Running AD queries and enabling user/service account permissions/logins on local UNIX/Linux systems.
•SOP creation of documentation and training material pertaining for the use and management of resolved issues to serve as a future reference
•Performed software and server support for pre-prod & production servers. Assisted with critical system outages, software upgrades, capacity planning, and (DR).
•Coordinated with business executives, Software Engineers, and datacenter teams in a 24x7 delivery-driven environment.
•Worked with AIX RS/6000 servers, DB2 databases, & WebSphere products
•Performed common system administration tasks including adding users, creating file systems, configuring volumes, monitoring logs, providing OS layer support to key enterprise applications.
Bowlmor AMF, Richmond, VA Mar 2010 - Apr 2011
Linux Administrator
•Providing on-line support for around 900 Linux servers in a Data Center Production Environment
•Installation/Upgrade physical & virtual RHEL Servers from the ground up as per customer build sheets. Coordinating with appropriate teams as needed (SAN, VMWare, H/W). Providing final check-out before server turn-over.
•Actively participated and supported in the migration of 460+ production servers from old data center to New Data Center
•Immediate acknowledgement of all P1, P2 issues. Working requests while constantly updating status for all levels of severities and provide RCA report.
•Logging events and forcing crash dumps, server hardening and day to day troubleshooting.
•Co-ordination with Application team to install necessary apps and ensure high performance from OS layer.
•Co-ordination with backup team for recovery of files/critical system data. Worked with Tivoli Backup Manager to take backups of critical data prior to Migrations or for planned DR activities.
•Configuration and administration of NIS, NFS & DNS environment. Updating appropriate configuration files/entries as needed.
•Create and maintain technical documentation for new installations and systems changes as required.
•Maintaining, Upgrading, Troubleshooting Hardware (MBD/CPU/Memory replacement, network problems, console problems, hard disk errors etc.) of sun servers like SF V100/V120/V240/V440/V480 / V490/V1280 /V880, Enterprise 220R/420R/6500.
•Coordinate with vendors SUN, IBM, HP, and VERITAS for RCA’s.
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