Candidates About

 

Srijan Tuladhar

Summary: 

·         Seven years of IT experience with five years of emphasis in Redhat Linux, SUSE Linux, Centos, Ubuntu and AIX administration.

·         Installation, configuration, administration, troubleshoot, tuning, security, backup, recovery and upgrades of IBM AIX 4.3/5.1/5.2/5.3/6.1/6.2, Win NT/2000/2003 Server, Linux (Red Hat & SuSE)

·         Experienced in installation, configuration, maintenance and troubleshooting HACMP 4.5/5.1/6.1 on AIX 5.1/5.2/5.3/6.1/7.1

·         Expertise in migration from HACMP V4.4 to HACMP V4.5

·         Implemented Kickstart for RedHat automated installations on VMWARE.

·         Installed and maintained Hardware/Software in Production, Development and Test Environment integrating with Unix/Linux (RHEL/SUSE/AIX) support team.

·         Configuration of Volume groups, logical volumes and file systems on Linux.

·         Managed LVM and file system SRC and paging space management restore and availability.

·         Performed new disks addition, formatting, partitioning, disk space allocation, monitoring system performance, system tuning, server hardening and crash recovery issues.

·         Package Management like Install, remove, update and querying packages using RPM tool.

·         Daily Production support like daily log checking, backup/recovery procedures, disaster recovery, periodic maintenance and off-hours problem support.

·         Administered user and password management, allocating quotas to users as well as system startup and shutdown, monitoring and portioning.

·         Expertise in IBM-AIX hardware components (RS/6000, pSeries-P5, P6, P7), trouble-shooting and maintenance of PC’s.

·         Managed configuration to build LPARs/DLPARs/WPARs and WLM,  configured the hardware devices that support them

·         Disaster Recovery Planning

·         Proficient at configuring and maintaining NFS, DNS, NIS/NIS+, DHCP, SMTP, and Networking with b

·         Proficient in effective communication with all levels of management and the clients.

·         Experienced with support 24/7 on Red Hat Linux Administration.

·         Efficient at Perl/Korn Shell scripting.

·         Experienced in SAN and NAS Management (EMC, IBM etc.)

·         Implementing and maintenance of DNS, DHCP servers in Red Hat Network.

·         Everyday Network administration tasks - adding and removing users file and share permissions, trust management, replication management, server backups, and server setups.

·         Have experience on configuration and managing Puppet Master Server, and also experience in updating and creating modules and pushing them to Puppet Clients

·         Define system requirements, recommend solutions, analyze capacity and modify appropriately.

·         Knowledge in changing ticket Co-ordination and Remedy.

·         Proficient at monitoring and altering file system usage, system and hardware process failures.

·         Hands on experience on automation scripting.

·         Knowledgeable about EMC, Hitachi, Powerpath and MPIO.

·         Submitted and managed parallel, serial and interactive tasks

·         Worked on extensive documentation and 24X7 support role.

 

Technical skills:

 

Operating Systems        Linux (Red Hat 4.x, 5.x, 6.x ),  CentOS 5/6,  Fedora, Ubuntu , Windows NT4.0, Windows 98/2000/2003/XP/VISTA, Open VMS

Hardware                      HP DL360, DL385 G8/G7/G6/G5, Sun Fire Servers - E25k,E15k,12k, E280R, E480R, V240, 420R, V440, V480, V490, V880,V890 4800, E6900 and E2900. IBM - F-SERIES AND P-SERIES, IBM RS6000.

Data Centre Servers -    E250, E450, E3000 and E3500, M4000,T2000, T5120.

Storage-                       EMC, HP, NetApps

Tools                            Nagios, Zabbix, Cacti, Eucalyptus, Openstack, F5, HP SIM, Puppet, Akamai, OSSEC, IpTables, Redhat  Cluster, Aicache, Memcached

Languages                    Shell scripting, Perl, Python

Databases                    Oracle 11g/10g/9/8, MYSQL, Mongo

Networking                    TCP/IP, DNS, NFS, NIS, SSH, DHCP, Cisco Routers / Switches and LAN

Web/Applications Technologies Apache, Tomcat, Jboss

 

Work Experience:

 

Compass Minerals, Overland Park, K.                                                  May 2015 - Current

Linux/UNIX Systems Administrator.

 

Responsibilities:

·         Installed, configured, maintained and enhanced operating system and system support software/hardware Enterprise Linux 6.x, 5.x, 4.x,Ubuntu troubleshooting hardware, operating system, applications & network problems and performance issues.

·         Installed and configured various flavors of linux like Red hat, SuSEand Ubuntu.

·         Monitored trouble ticket queue to attend user and system calls, participated in team meetings, change control meetings to update installation progress, and for upcoming changes.

·         Diagnosing and resolving systems related tasks in accordance with priorities setup in dealing with trouble tickets.

·         Deployed patches for Linux and application servers, Red Hat Linux Kernel Tuning.

·         Network printers setup and installation of client/server applications. Defined and setup network protocols, Network File Services (NFS), and Network Information Services (NIS) in Red Hat Linux and AIX systems

·         Network trouble shooting using 'netstat', 'ifconfig', 'tcpdump', ‘vmstat’, ‘iostat’ and others.

·         Installed and configured DHCP, DNS, web (Apache,IIS), mail (SMTP, IMAP, POP3), and file servers on AIX and Red Hat Enterprise Linux servers.

·         Built vservers using the templates as per the application's requirement

·         Responsible for adding new DNS and mail entries in their respective servers.

·         Day to day production support including checking daily logs, backup/recovery procedures, disaster recovery periodic maintenance and off-hours problem support.

·         Involved in establishing, publishing and monitor adherence to security standards for access to the Servers.

·         Facilitate load balancing and building vservers with high availability and using and creating distribution groups

·         Monitored the whole exalogic infrastructure.

·         Installed and administered Redhat using KVM, Xen based hypervisor.

·         Experienced in installing and managing NFS, FTP and Samba for file sharing.

·         Installed and managed Tomcat and Apache Web based Server for Red Hat Production servers.

·         Identifying, evaluating and recommending the purchase of software, hardware or services that can be used to improve the performance of this group.

·         Supervised hardware installations and performed O/S upgrades.

·         Experience in working in a huge environment with almost 700 servers including RS/6000.

·         Experienced in Network Installation Manager (NIM) installations on AIX 5.2/5.3/6.1.

·         Installed and configured NIM, assigned the clients and took the mksysb of the NIM client on the NIM master

·         Responsible for establishing, publishing and monitoring standard for configuring servers on different UNIX platforms.

·         Responsible for LPAR and DLPAR system administration.

·         Day to day tasks in Red Hat Linux including upgrading rpms, kernel, HBA driver, configuring SAN Disks, multipathing and LVM file system.

·         Installation and administration of Veritas Cluster Manager (VCM), Veritas Volume Manager (VVM).

·         Supporting and troubleshooting of Red hat systems 24/7.

·         Performed system administration tasks like system monitoring, performance usage, network support, and user support.

·         Created and scheduled cron tasks for file update, system back up or removal of unnecessary files.

·         Experience in account creation for users, groups, and manage permissions as per the company policy.

·         Installation and configuration of Apache Web Server 1.3 for Various intranet/extranet websites

·         Allocate and manage quotas for users and groups.

·         Managed cron jobs, batch processing and job scheduling.

·         Performed Failovers in HACMP / cluster environment, and monitored servers.

·         Deployed latest patches for Linux and Application servers, and performed Red Hat Linux Kernel Tuning.

·         Expertise in configuring VLANs on IBM p Series, Nortel Switches, CISCO switches.

·         Linux Kernel, memory upgrades and swaps area and performed Red Hat Linux kick start installations.

           

Environment: REDHAT 6.x,5.x, Ubuntu, CentOSAIX 4.3/.5.2/5.3/6.1/7.1, SMSAP, TSM, Nortel Switches, Cisco Switches, P6/P7 hardware, windows2000, HACMP Clusters, PowerHA, SAN, NIM, IBM HTTP server, WAS 4.0/5.0, VERITAS, DB2, Oracle, PeopleSoft, Shell scripts.

 

Wells Fargo. : Phoenix, AZ.                                                                              Sep 2014–Apr 2015

Linux/UNIX Systems Administrator

 

Responsibilities:

·         Installation/Maintenance of Hardware/Software in Production, Development & Test Environment as an integral part of the Unix/Linux (RHEL 5.x / 6.2,SuSE/AIX) Support team.

·         Worked on installation, configuration and maintenance of Red Hat, Cent OS, UBUNTU, SUSE, AIX and Windows servers.

·         Installed and configured RedHat Satellite server for package transfer across servers, to store client’s system profile and to control other servers in the network.

·         Configured LVM and managed it.

·         Experience with kick start installation on multiple servers.

·         Worked with KVM Hypervisor to install, configure and maintain Red Hat Linux.

·         Capacity Planning, Infrastructure design and ordering systems.

·         Created and scheduled Cron Jobs such as for Backup, System Monitoring and removed unnecessary files.

·         Implemented day-to-day tasks in RedHat Linux that include upgrading rpms, kernel, HBA driver, configuring SAN Disks, multipathing and LVM file system

·         Installed, configured, maintained and administered the network servers DNS, DHCP, NIS, NFS, SENDMAIL.

·         Worked with DBA’s to install RDBMS database, restore and generate logs.

·         Involved in adding new disks, formatting, partitioning, disk space allocation, monitoring system performance, system tuning, and crash recovery issues.

·         Experience with installation and maintenance of NFS, FTP and Samba for file sharing.

·         Built Linux servers using VMWare ESX  andVMWare ESXi.

·         Created Virtual disks/Virtual Target devices to allocate SAN Luns virtually to the VIO clients.

·         Experience in creating Control channel, Shared Ethernet adapter and configuring them on the network.

·         Set up repositories for Redhat, implemented YUM, SSH and other security tools.

·         Application of Load Balancer in the Virtual Linux Server.

·         Daily system monitoring using commands like vmstat, iostat, top, tcpdump, defrags and so on forefficient server operation.

·         Package management like Install, remove and update and querying packages using RPM tool.

·         Used Samba to print and share files in mixed Environment.

·         Installed, configured, maintained, upgraded and troubleshooting EMC powerpath on Solaris 10 and Linux.

·         Experience with installation of Tomcat and Apache Web Servers on Red Hat Production Servers.

·         Monitored trouble ticket queue to attend user and system calls, diagnosed and resolved systems related tasks in accordance with priorities setup in dealing with trouble tickets.

·         Installed, upgraded and managed packages as well as the dependencies through RPM.

·         Patching and Package administration.

·         Implemented RAID techniques and created disk groups and volumes using Veritas Volume manager.

·         Maintained Load balancing, High availability, Failover functionality and Disaster recovery included changing of IP address of the web and app server machines, which caused change in virtual host and http transport configurations.

·         Involved in extensive trouble shooting the issues by finding out root causes, analyzing core dumps and resolved system crashes.

·         Experienced with user account, group account creation, management and allocation of quotas for users and groups as instructed.

·         Provided 24/7 on call supports in debugging and fixing issues related to Redhat and SuSE Linux.

 

Environment : Linux (RHEL 4.x &5.x), AIX 6.1, Oracle 11/10g,  SUN Servers, SUN Fires,  Samba, Perl, Shell Scripting, Bash, SUSE 11/10Veritas Volume Manager (VVM), F5 Load balancers, SiteMinder5.5/4.5, EMC Storage SAN, Veritas Cluster Server (VCS).

 

Capital One. Richmond, VA.                                                                             Feb 2013-Aug 2014

Systems Administrator

 

Responsibilities:

·         Installation, Configuration and upgrade of RedHat Linux 4/5/6.2, Suse Linux, Ubuntu.

·         Performed setup and configuration of Install Server, Configuration Server and Boot Server for Kickstart process.

·         Good experience in installation, configuration and maintenance of Linux.

·         Experience in configuring and trouble shooting of Kickstart services on multiple servers.

·         Experience in System monitoring, Performance tuning and OS hardening to secure the Solaris environment.

·         Administered tasks like user and password management, allocating quotas to users as well as system startup and shutdown, monitoring and partitioning.

·         Creation of Backup accounts for new users and Deletion of accounts for retired or unavailable users.

·         Experience in configuration of NFS and Naming services like NIS and DNS.

·         Implemented file sharing on the network by configuring NFS on the system to share essential resources.

·         Implementation of RAID techniques and creation of Disk groups and volumes using Veritas Volume Manager.

·         Patch and package administration for installation of patches as per the company policy and installation of packaged application.

·         Production support of Apache including installation, configuration, management and troubleshooting

·         Having production experience supporting and deploying to web application servers such as BEA WebLogic, Red Hat JBoss, Apache, Tomcat, and Apache HTTPD servers.

·         Installation, Configuration and Administration of Weblogic, Websphere and Apache Servers in Linux.

·         Worked on VMWare for testing various applications on different operating system.

·         Experience of Storage Area Network/SAN.

·         Implemented configuration management with Puppet.

·         Implementation of RAID techniques and creation of Disk groups and volumes using Veritas Volume    Manager.

·         Created System Disk Partition, Mirroring root disk drive using VERITAS Volume Manager.

·         Maintained and recycled backup Tapes upon request from company.

·         Configured VERITAS Cluster Server (VCS), fail over test of VCS groups, added/

·         modified VCS resources such as File Systems.

 

Environment: Red Hat Linux 4.0,5.0, AS ES, AIX 6.1,4.3,5.1,5.2,5.3, HP-DL585, HACMP 5.5,4.2.x,4.3,4.3.1,4.4 , Veritas Netbackup, SAN Storage, 4.5.5, IBM-z/VM, Oracle 9i/10g, Samba, NT/2000 Server, Websphere,  Web Logic 8.1, VMware ESX 2.x, LPAR, DLPAR ,Tomcat 3.x,4.x,5.x,6.x Apache Server 1.x,2.x, Korn, Bash.

 

Comcast. Philadelphia, PA.                                                                             Sept 2011- Dec 2012

Systems Administrator/Engineer

 

Responsibilities:

·         Installation, Configuration & Upgrade of Redhat Linux

·         Used Kickstart for Red Hat for automated installations and VMWARE.

·         Solved real time issues with the help of engineers and co-workers.

·         Involved in decommissioning servers project as per the company procedures and update the hardware inventory database.

·         Installed, Upgrade and Manage packages through RPM and also take care of dependencies.

·         Installed and maintain puppet-based configuration management system

·         Deployed Puppet, Puppet Dashboard, and PuppetDB for configuration management to existing infrastructure.

·         Deployed m-collective for orchestration.

·         Implemented configuration management with Puppet.

·         Replicated several Unix/Linux servers depending upon the requirement and availability

·         Configured kickstart server and updating/applying patches to the servers using Redhat Satellite server.

·         Installing, administering Redhat using Xen, KVM based hypervisors.

·         Installed RHEL 5.x on x86 servers.

·         Installed, configured and maintained Redhat Satellite Servers for different applications.

·         Performed Linux kernel, memory upgrades and undertook Red hat Linux Kickstart installations.

·         Involved in development, user acceptance, and performance testing, production & disaster recovery server.

·         Created users, manage user permissions, maintain User & File System quota on Redhat Linux

·         Installed and configured VERITAS Volume Manager, Solaris Volume Manager.

·         Installation and configuration of Logical Volume Manager on HP-UX and Linux.

·         Very good working experience on Redhat Satellite Server upgrading and patching.

·         Building Linux servers by using VMware ESX 3.0 and also involved in channels and pushing the packages in Redhat Satellite Server.

·         Implemented upgrade of servers using Redhat Satellite Server.

·         Monitored system activities and fine-tuned system parameters and configurations to optimize performance and ensure security of systems.

·         Backup management and recovery policies using VERITAS Net-Backup.

·         Daily task include growing, creating of VERITAS volumes and file system on San storages.

·         Implemented SUDO,SSH and other security tools and implemented security compliance.

·         Installed VMware ESX server and configured Solaris 9/10/ Red Hat Linux 5.x / Windows 2003 virtual machines for various applications.

·         Kernel parameter changed in Solaris and Linux environment.

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