Infrastructure Engineer/linux System Administrator Resume
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Seattle, WA
SUMMARY:
- Over 12 years of IT industry experience in System Administration on Red Hat Linux, Sun Solaris.
- Expertise in Installation, Configuration and administration of Red hat Linux 5x,6x, 7x Solaris 9,10
- Red Hat Linux - based Virtualization implementations such as VM Ware and AWS.
- Worked on VMware virtual environment ESX, ESXi, vCenter, vSphere and vCloud environments.
- Experienced in supporting database systems including Oracle and RAC on Red Hat Linux/Unix.
- Was involved in creating and maintaining user accounts, profiles, security, rights, disk space and process monitoring.
- Experience in setting up a PXE boot environment with Red Hat Linux.
- Expertise in Veritas Volume manager (VxVM), creating new file systems, mounting file systems and un mounting file systems
- Planning, documenting and supporting high availability, business persistence, fail-over, fail-back using Veritas Cluster Server.
- Expertise in implementation and maintenance of DHCP, NFS, NIS, DNS and SMTP.
- Configured Monitoring using Tivoli and Splunk.
- Experience in using Symantec Net Backup, Proficient in system backup and recovery from tapes using tar and cpio, file system administration.
- Configured Network Concepts DNS, NIS and DHCP, troubleshooting network problems such as TCP/IP, providing support for users in solving their problems
- Worked on Networking and communication devices, Server Utilities, TCP/IP, FTP.
- Performing troubleshooting production issues, root cause analysis and preventive actions. Excellent problem resolution and communication skills with ability to work under pressure in a highly visible role.
PROFESSIONAL EXPERIENCE:
Confidential, Seattle, WA
Infrastructure Engineer/Linux System Administrator
Responsibilities:
- Installation, configuration and Operating System upgrade Red Hat Linux 6.x in virtual environment.ESX 5.1
- Provided operational support to various teams on Linux 6.x & 7.X.
- Involved in designing and deploying a multitude applications utilizing almost all of the AWS stack (Including EC2, Route53, S3, SQS, IAM) focusing on high-availability, fault tolerance, and auto-scaling.
- Migrated the current Linux environment to AWS/RHEL Linux environment and used auto scaling feature.
- Increasing EBS backed volume storage capacity when the root volume is full using AWS EBS Volume feature.
- Created AWS Route53 to route traffic between different regions.
- Created S3 backups using versioning enable and moved objects to Amazon Glacier for archiving purpose.
- Assigned users and groups using IAM and individual policies to each group.
- Created SNS notifications and assigned ARN to S3 for object loss notifications.Migrating Datacenter Linux servers to AWS Cloud.
- Configured volume management using LVM.
- Worked with various DBA’s in setting up database on AWS environments
- Migrated Datacenter Application to AWS and made sure the customer facing application are up and running
- SENDMAIL configuration and administration, testing the mail server.
- Installed, Configured and working with Splunk software which gives the system log information in timely manner which helps us determine the health of system
- Wrote Exclusive bash scrips for automation purpose.
- Red Hat Linux kernel, memory upgrades and swaps area increase.
- Configuring DNS, DHCP, NFS in servers.in luesiled enviornment
- Troubleshooting of various server,storage,network issues and often followedup with RedHat Inc by opening tickets for critical issues.
- Setup various user profiles, environment variables/security to ensure smooth operation.
Confidential, Irving, Tx
Infrastructure Engineer/Unix System Administrator
Responsibilities:
- Delivering the OS support to critical servers running Database and Applications on LINUX and Solaris.
- Up-gradation, Configuration, Maintenance, Patch /Package management and Troubleshooting of the Operating Systems and Services .
- Patch management using Yum repository & TPM.
- Red Hat OS upgrades & Migration on 5.X & 6.X
- Installing latest OS and VTM patches to keep the latest and most up to date software configurations.
- Installation and configuration of Oracle RAC 11g on Red Hat Linux cluster nodes.
- Managing users, groups, hosts and file systems.
- Hardware Maintenance and coordinating with Vendors accordingly like HP, SUN, IBM and Symantec for all VERITAS product issues.
- Involving in Hardware replacements like disks, memory D IMM, CPUs and PS units.
- Configured volume management using LVM and SVM .
- Configured VCS service groups, resources and new file systems.
- Adding and removing the cluster nodes from the VCS control.
- Application software installations upon clients request.
- Automating Jobs Using the cron and at.
- Performance monitoring and troubleshooting .
- Day-to-Day Administration upon client request based on the predefined process.
- Communications with business units for maintenance and scheduled outages.
- Giving the capacity reporting for the Production Service lines on weekly and monthly basis to the business to take necessary remedial actions in case of performance issues in PROD servers .
Confidential
Infrastructure Engineer/Unix System Administrator
Responsibilities:
- As part of MCM team: This includes assign the IP, updating MAC information, build the Linux and Solaris boxes .
- Installing and configuring VCS cluster, configure SAN disk for Standalone hosts using VXVM and signoff hosts.
- Ensure that SLA's are maintained while handling the ticket requests without any issues.
- Responsible to ensure makes proper and timely entries into the various on-line reporting systems designed to collect performance metrics for the team.
- Regularly updating the status with the right information, escalating the issues to different levels like Level 3, H/W, SAN teams etc., to ensure high quality work products and processes.
- Checking the issues with the team task that is being completed, before updating the client to avoid any issues and rework.
- Installed and Configured Solaris 9 and 10 on Sun Enterprise servers, Sun Ultra Sparc servers.
- Installed and Configured Red Hat Linux on IBM, HP and Dell servers.
- Installed Veritas Volume Manager on Solaris. Implemented RAID 0, RAID 1, and RAID 5 in the systems.
- Created vmdisks, plexes, and volumes using the volume manager according to the requirements. Replaced failed disks using vxdiskadm.
- Wrote Shell Scripts to perform routine tasks like selective file removal, maintaining log list, disk space utilization & process management.
Confidential
System Administrator.
Responsibilities:
- Involved in the set up of LAN with WINDOWS NT4.0, 2000, 2003, LINUX, SUN SOLARIS with databases Oracle8, Oracle8i, 9i, 10g.
- Involved in integration of .net with SQL databases. Involved in installation of Oracle9.2.0.1 in Linux and Web logic 8, DB2 8.2, Web Sphere 5.1 installations in Windows system as a part of our training and development program with Intel Servers.
- Heterogeneous LAN Configuration between Solaris, Linux and Windows using Telnet.
- Device Management, Scheduling Events & Regular Backups, File system Security, Reporting of Log Messages, Patch, Package Management.
- Performed Custom Jumpstart Installation over network and maintained Install server, Boot server, and Profile server. Wrote various post installation scripts.
- Performed Kick start installation over the network & also configure the DHCP Server. Wrote various post installation script.
- Setup NFS Servers, Diskless clients and Auto clients and auto mounted the file systems using direct and indirect maps.
- Monitored the performance of the system using top, vmstat, netstat, nfsstat, rpcinfo and iostat to check the cups utilization, bottlenecks of I/O devices, Memory usage & Network traffic.
- Used Solaris Volume manager and created metadevices, metamirror, and maintained root disks under Solaris Volume manager control. Attached additional disks to overcome the lack of disk space using metaattach.
- To troubleshoot network connectivity, used ping, Arp, ifconfig, rpcinfo and traceroute commands.
- To login to the remote system, used rlogin, telnet. To transfer files across the systems on the network used ftp and rcp commands.
Confidential
System Administrator
Responsibilities:
- My responsibilities involved Maintenance, Installations and trouble shooting of Windows 2000, Networks, solving technical problems, both in hardware and software.
- Involved in maintenance and technical support in Windows 2000 and other OS.
- Involved in the setup of LAN with Windows 2000 with databases Oracle8, Oracle8i, 9i and also involved in integration of Vb 6.0 and .net with SQL databases.
- System Security, Reporting of Log Messages. Configuring Dial-up Networking, Modem Installation, Proxy Server Installation & Administration, LAN Administration, and Intranet Administration. Installation, Configuration of Client Servers with Windows workstations
Confidential
System Engineer
Responsibilities:
- My first job started as a System Engineer.
- I was leading a team which includes Hardware Engineers and System Engineers to setup LAN based networks, providing with service support for our large-scale client circle over Chennai.
- We supported the clients for all branded Hardware and all peripherals.
- My responsibilities involved Installation, Maintenance and Trouble Shooting of Windows NT Networks, solving technical problems faced in the design and Implementation of the networks at the Client sites.