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Senior Linux/devops Engineer Resume

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Ashburn, VA

SUMMARY:

  • Over 8 years of enriched IT experience in System Administration, DevOps, ans AWS Cloud with extensive experience in Solaris, Red hat Linux, Ubuntu &UNIX Server Administration, Docker, Anisible, Jenkin, GIT, and AWS Cloud that includes EC2, S3, IAM, VPC, IGW, NAT, EFS, Route 53.
  • About three years of experience in installing and managing ESXi5.5, 6, V center servers and vCSA on windows and Linux.
  • Installing, upgrading and configuring SUN Solaris, 8, 9, 10, 11 and 11.2 on Sun Servers using Jumpstart Servers and Interactive Installation.
  • Installing, upgrading, patch, and configuring Red hat Linux Enterprise5, 6.5,6.9On HP and Dell Servers.
  • Savvy in troubleshooting, creating, managing and maintaining Solaris LDOMS and Solaris Zones.
  • Excellent in installing, configuring and managing Pillar Axiom Storage (Oracle SAN),HP SAN and Netappalong with deep understanding of Storage and SAN technologies Virtual disk, LUNs, snapshot, replication, and Thin Provision
  • Knowledge of configuring and managing Brocade 300 Switches
  • Extensive experience in configuring, managing and troubleshooting IP Table and KVM on Red Hat Linux.
  • SELinux implementation and configuration.
  • Strong knowledge and understanding in installing, configuring, managing and maintaining various monitoring tools such as Nmap, Nagios and solariswind.
  • Expertise in migrating Netbackup 6.5 to Netbackup 7.5
  • Creating and maintaining user accounts, profiles, security rights, disk space and process monitoring.
  • Installing and configuring of Web hosting administration such as HTTP, FTP, and SSH.
  • Strong knowledge of TCP/IP, LDAP,DNS, NIS, NIS+, NFS, DHCP.
  • Extensive experience in installing, configuring and troubleshooting various Configuration Management Tools such as Puppet and Ansible.
  • Good knowledge in managing configuring, and trublshootingAnsible configuration Management Tool.
  • Excellent knowledgeinstalling, configuring, scaling, and creating pipeline withDocker, GitHub and Jenkin.
  • Excellent knowledge in managing, maintaining, and scaling the AWS infrastructure using EC2, S3, IAM, VPC, and Cloud watch.
  • Create Electic File System (EFS) from the scratch, configure and create rules and policies, and attach it to EC2 instances.
  • Expertise in Veritas Volume manager (VxVM), creating new file systems, mounting and unmounting file systems.
  • Hands on experience in installing, managing, and maintaining the VCS( Veritas Cluster)
  • Strong knowledge and Hands on Experience in installing, managining and maintaining EXSi5.5, 6 on Dell Servers attached to HP SAN.
  • Strong knowledge in installing and managing V center server and vCSA.
  • Excellent in installing, configuring and administering Linux Volume Manager (LVM), Solaris Volume Manager (SVM).
  • Excellent in installing, configuring and maintaining Veritas Volume Manager, Veritas Net Backup, Veritas Cluster Server (VCS) .
  • Efficient in installing, configuring and implementing the RAID Technologies using various tools like Veritas Volume Manager, Solaris Volume Manager, and Logical Volume Manager.
  • Hands on experience installing, configuring and maintaining Apache/Tomcat, Samba &Send Mail and Weblogic Application Servers.
  • Experience in using Veritas Net Backup, proficient in System Backup and Recovery from tapes using UFSDUMP, UFSRESTORE, TAR and CPIO, file system administration.
  • Hands on experience in racking, stacking, installing, and maintaining on various Sun Entry level servers like Sun Fire V280, V440, Midrange servers like Sun Fire V480, V880, V890 and have also worked on Highend Oracle T5120, T4 - 1, T4-2, T7-2, M4000, M5000 and X4-2, Storages such as Pillar Axiom 600, Netapp, 7310, 6120 and 6140, HP SAN, Dell Power Edge series and HP proliant servers such as Gen 7. Gen 8, and Gen 9.
  • Good in writing Shell scripting using Ksh//Bash/Awk/Python /YAMAL to ease administration tasks.
  • Excellent skills in Analyzing, Designing, Implementing System Integration, knowledge on Switches, Routers, & Firewalls.
  • Knowledge in Subnet, VLSM, CIDR, and supernetting.
  • Proven track recorder in designing and implementing high available, scable, resilient and fault tolerant systems platform.

TECHNICAL SKILLS:

Operating System: Solaris 11.2/11/10/9/RHEL (Red Hat Linux) 5, 6, 7Ubuntu 12, 14.04, 16Windows 2000,20 R2ESXi5.5, 6AWS EC2

Hardware: Sun Fire V440/V480/V880/V890, Sun Enterprise ServerT5120, Oracle Ultra Enterprise Servers M4000/M5000/T4-1/T4-2/X4-2, . Dell R751, Dell 2950, Dell R730, Dell R710, HP proliant Gen 7, Gen 8, Gen 9, Sun Storage 7310/6120/6140 such Oracle SAN Storage Pillar Axiom 600. HP-9000, IBM RS/6000Brocade 300 switches

Web/Application Servers: Tomcat, Apache,Weblogic

Cluster server: Veritas Cluster, Sun cluster

Scripting Languages: Bash, KSH, SED, AWK, Python, YAMAL

Programming Language: Python, YAMAL

Databases: MSSQL server, Oracle,Tape Hardware: Storage tek Tape libraries L40, L80, L180, L700Protocols: TCP/IP, FTP, SMTP, SOAP, POP and HTTP,NIS, DNS,DHCP, LDAP

Configuration Management Tool: Puppet, Chef, Ansible, Jenkin, Docker, Github

Monitoring Tool: Nmap, Nagios, Solarwind

Virtual Technology: Solaris LDOMS and Zones, RHEL KVM, VmWares

WORK EXPERIENCE:

Confidential: Ashburn, VA

Senior Linux/DevOps Engineer

Responsibilities:

  • Manage Global End Point Operation and Core System for 2100+ LinuxRHEL servers on HP Gen 7, Gen 8, and Gen9. Globally.
  • Manage and maintenance the 3.2 Upgrade and migration Project that includes migrating current 2100+ hosts globally to Red Hat Linux 6.9. As a part of Project member involved in communicating with CSS to plan and schedule the Migration maintenance windows, and change management.
  • Take initiative and standardize the Patching and failover documents to minimize the unplanned outage
  • Perform risk analysis and assessment and identify issues and accordingly create risk mitigation plan to address if any issue occurs.
  • Usedwireshark, tcpdump to monitor network and troubleshoot issues
  • Setup Kickstart environment for the Linux production and development installation
  • Install, configure, and manage EAS Hosts at the Clients location globally as requested.
  • Patch and Failover all 2100+ servers as required to curb the Vulnerability
  • Request new LUNs and add them to the existing Volume Manager.
  • Install HP hardware, remove and replace the failed component such as hard drive, PSU.
  • Migrate end of life HP Gen 7 servers to Gen 9 and Gen 10 with zero down time.
  • Upgrade ILO and BIOS globally to address the Sptre and Meltdown vulnerability.
  • Create, manage, and update local Yum repository
  • IP table management and configuration
  • Create and manage KVM environment
  • Monitor the EAS hosts globally for any issue or alerts and identify the root cause for issue and fix it.
  • Secure connect all the hosts at Client locations using the Conrep and GRUB such as setting the admin password for GRUB, disabling USBs, setting Auto Power, and enforcing to use specific cipher.
  • Reconfigure all the EAS hosts at Client locations to enforce use of TLS 1.2 for enhcnce security.
  • Distribute Paches globally using the Electronic Distribution Software.
  • Create and generate verity of status and progress reports and dash boards for the management using Python and Bash script.
  • Configure and reconfigure the Transaction Processing by modifying IPs, Ports, and Stations on EAS hosts as per the Client requests.
  • Activate the modified configurations on client system to implement the change.
  • Create VMG packages and profiles and distribute them via DT, deploy via Jenkin, and release via Jera.
  • Create and update Check Sum Scripts using the Bash script.
  • Update and modify health and lockdown script using Python.
  • Identify and trouble the hardware issues and open break fix to replace the hardware.
  • Install and update s on EAS hosts.
  • Recover the corrupted RHEL hosts and fail back to the previous kernel version if issue occurs with new version.
  • Perform Failover on dual EAS hosts globally and communicate with the Clients and mitigate if any issue arises.
  • Create changes using the Ask Now and work on Incidents and changes assigned for variety of reasons.
  • Collaborate and co-ordinate with off shore teams for better synchronization on project status.
  • Installing, configuring, and maintaining the jenkin and Dockers.
  • Integrating Git with the Jenkin for automatic job building, configuring build and delivery pipeline for continuous integration and continuous deployment.
  • Worked with GIT for creating local repo, cloning the repo, adding, committing, pushing the changes in the local repo, recovering files, branching, creating tags, viewing logs, etc.
  • Install, manage, trouble, and scale the Jenkin slaves and configure the build and delivery on different nodes as per the request from the Developers.
  • Install,configure, and manage the Docker, Docker-machine, Docker-compose, and Docker-swarm for production, development, and test environment.
  • Create the Docker-files and cluster environment using the Docker-Swarm.
  • Scale up or down the Docker enterprise infrastructure that includes creating Docker-volumns, adding the slaves to Docker-cluster, create the application stack as per the requirement.
  • Install and configure Iopsbasesed EC2 instances and attache the EBS as per the requirements.
  • Install application on AWS EC2 test environment
  • Configured the storage on S3 Buckets
  • Created new accounts, roles, and groups using IAM
  • Create and manage the VPC, VPC peering, routing table rules. and integrate different routs.
  • Configure the NAT, IGT, and LBS for load balancing.
  • Configure the Cloud Watch for monitoring, alerts, and notification regarding the AWS infrastructure.
  • Created Electic File System (EFS) from the scratch and configure rules and polocies using policy generator, and attached them to EC2 instances.

Environment: Red Hat Linux (RHEL) 6, HP Proliant Gen 7, Gen 8, Gen 9, Gen 10, Jenkin, VMG, ESD, Jera, Anisible, Docker, LVM, AWS EC2, S3, SNS, IAM, VPC, IGT, Route 53, HP SAN and NAS

Confidential

SeniorSolaris/Linuxengineer.

Responsibilities:

  • Install, configure and manage monitoring tools such as Solarwind and Nagios.
  • Build new Solaris environment from scratch to run Solaris 10, 11 and 11.2 beta
  • Create and configure new Solaris virtual environment such as Zones and LDOM to host Weblogic, OBIEE and critical productions apllications in short period of time..
  • Create and configure LDOM (Logical Domains) and Solaris zonesto host new testing environment running Solaris 1, 11.2 beta.
  • Manage, maintain and create Solaris IPS (Internet Package Services) repository.
  • Responsible for installing SPARC T4, T7, M5000, M4000 servers, and creating the ZFS cluster and file systems.
  • Worked with the Oracle DBA team in setting up the Oracle ASM, Oracle Rack 11g, and configured LUNs on the VCS Cluster servers.
  • Setup an environment on Solaris Zones and LDOM to host the OBIIE 12C
  • Assist Oracle Weblogic 11g/12c installation with DBA team
  • Manage and configure Red Hat Linux(RHEL) 6, 7.
  • Manage, upgrade Local YUM Repository.
  • Excellent in configuring and managing Brocade 300 switches.
  • Provising and mapping LUNS from Pillar Axiom 600 (Oracle SAN) to Productions servers.
  • Savy in managing, maintaining and configuring Netbackup 7.6, 6.5.
  • Manage and Maintain Sun Storage 7310, 6120 that includes Firmware upgrade, Memory expansion and adding new disk array to satisfy data growth.
  • Build new server architecture as per requirement and hand over to application team that included mounting servers on racks, cabeling and establish networking and configuring switches.
  • Configured Netbackup clients and managed VERITAS Netbackup systems.
  • Worked with Veritas Clusters and deployed three-node production cluster on Solaris
  • Adding, deleting and configuring different resources in Veritas Clusters on Solaris10.
  • Administration and troubleshooting Solaris servers running business critical application &Web Logic (WAS) applications.
  • Creating and setting up NFS Mount Points on Solaris.
  • Discovering and adding newly added LUNS to the Veritas Volume Manager, Solaris servers.
  • Increase and decrease volume and file system in Veritas Volume Manager and File System.
  • Veritas File System and Veritas Volume Manager are used to configure the RAID Storage Systems.
  • Manage and maintainVXVM, SVM and ZFS.
  • Manage and maintain Web Server in DMZ.
  • Remove and replace failed hardware on Sun storage and servers.
  • Install and configure VCS cluster on Redhat Linux2 node cluster in Production environment
  • Troubleshoot various nfs related issues
  • Install LAMP and troubleshoot related issues
  • Involve RedHat server performance tuning by configuring Kernel Parameter Settings, Tune Up

    TCP, Use ext4, Refine Mount Point option, Proper Configuration of MySQL and Apache Analyzing LinuxServer Performance

  • Install various patching that involves vulnerabilities and issues
  • Perform system requirement reviews, patches, created tickets for storage, network connections Consoles, ILOs
  • Implement kernel changes/ITIL in production and test environment for Linux
  • Installing, Configuring and Trouble shooting of VMware Esxi5.5, 6, vSphere Client and Virtual Center Server Virtual Environment
  • Deploying and Troubleshooting the VM’S & ESX Hosts by using Virtual Center Server
  • Create and manages the Virtual Switches, DV-Switches & Port groups in virtual Environment
  • Experience with cloud infrastructure and Virtualization using VMware
  • Experiences on Hot Migration and Cold Migration for VM’s and VM files using V-Motion and SV-Motion
  • Upgrading and Patching and ESX Host Using VUM and ESX-Update utility
  • Hands on experience in installing Windows Server 2012R2 on Dell Server. Good knowledge in creating and promoting server as Domain Controller.
  • Experience in installing DNS, DHCP server and creating scope on Windows Server 2012R2

Environment: Solaris10, 11, 11.1, 11.2 beta. Weblogic, OBIEE, Oracle 10g, Oracle 11g R2, Axiom Path Manager. SunFire V440, V880, V890. Sun ULTRASPARC T5120, T4-1, T4-2. Oracle Enterprise Edition M4000, M5000, X4-2. Sun storage 7310, 6120,6140. Oracle SAN storage Pillar Axiom 600. Brocade 300 Switches. Solaris Volume Manager (SVM), Veritas Volume Manager (VXVM), Zetabite File System (ZFS).Windows Server 2012R2

Confidential: Dallas, Texas

Senior Linux Solaris Engineer

Responsibilities:

  • Install, configure and troubleshoot Red Hat Linux 5 and 6.5.
  • Install and configure the Solaris 10, create the solaris volume manager.
  • Create the LDOMs and Solaris Zones on SPARC T4-1 and T4-2 servers.
  • Support Level 2 and Level 3 calls for users .
  • Patch and upgrade Operating SystemRedhat Linux 6, and upgrade ILO and BIOS to the latest version on HP Gen 7, Gen 8 servers
  • Install and configure Nmap server to monitor and troubleshoot issues to provide 24X7 up time.
  • Cinfigure and manage IP table to safeguard Lunix infrastructure.
  • Manage, configure and troubleshoot KVM Servers to support Test and Development environment
  • Installation and configuration of Veritas Storage Foundation Suite, Volume Manager, Cluster Servers & Veritas File systems (Vxfs).
  • Net backup and TSM Backup for backup administration.
  • Installation of SSH and configuration of key bases authentication.
  • Integrating UNIXfile systems using packages like SAMBA. Setting up printers on UNIX / NT machines to work seamlessly across platforms.
  • Install, configure, manage and troubleshoot new configuration tool Puppet and sync all the Lunux clients to Puppet Master Server.
  • Involve RedHat server performance tuning by configuring Kernel Parameter Settings, Tune Up

    TCP, Use ext4, Refine Mount Point option, Proper Configuration of MySQL and Apache Analyzing LinuxServer Performance

  • Install various patching that involves vulnerabilities and issues
  • Perform system requirement reviews, patches, created tickets for storage, network connections Consoles, ILOs
  • Installing, Configuring and Trouble shooting of VMware Esxi5.5, 6, vSphere Client and Virtual Center Server Virtual Environment
  • Deploying and Troubleshooting the VM’S & ESX Hosts by using Virtual Center Server
  • Create and manages the Virtual Switches, DV-Switches & Port groups in virtual Environment
  • Experience with cloud infrastructure and Virtualization using VMware
  • Manage and maintain local RHEL Repo up to date.
  • Over seen and manage POC for Red Hat Satallite Server infrastructure.
  • Fortify Linux infrastructure security using IP Table configuration and alteration.
  • Assisting the Development team to provide the information and troubleshooting.
  • Manage and maintain RHEL Virtual infrastructure by creating KVMs.
  • Network trouble shooting using ‘ndd’, 'traceroute', 'netstat', 'ifconfig' and 'snoop' etc
  • Working closely with Vendors on Hardware Problems, software fixes.
  • Administration of NFS, NIS, DNS, Samba and Sendmail servers.
  • Provided 24X7 support for large number Production, Development and Test systems.
  • Coordinating with RHELSupport 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 a daily basis and monitoring the scheduled backups.
  • Clarify Ticket based problem management.

Environment: Red Hat Linux (RHEL) 5, 6, Dell Poweredge R730, Dell R710, Dell 2950, HPE ProliantSeries servers, Netapp Cluster mode, and, Veritas Foundation Suite, Veritas Volume Manager, Tivoli Storage Manager 5, Veritas Cluster Servers, Veritas Net backup,weblogic, webspear.VmWareESXi, HP Gen 7.

Confidential: Moline, IL

Unix/Linux Architect

Responsibilities:

  • Installed and configured hardware and OS on servers, workstations and I/O devices on E4500 environment.
  • Installed, racked and stacked HP Gen 7 servers and upgraded ILO and BIOS to keep the system upto date.
  • The system builds from the scratch for UNIX and RHEL system.
  • Used Veritas Net backup tool for Backup and recovery.
  • Migrate the End of Life servers to new servrs using the LVM.
  • Remove and replace the hardwares on servers and storages such as PSU, Disks, and upgrade the memory on existing system.
  • Responsible for DNS and Configured DNS Servers and Clients and troubleshooting system and DNS issues.
  • Build Solaris Local zones, branded and native, sparse and full root
  • Products platform - redesigned and deployed infrastructure for multiple markets
  • Build, maintain and troubleshoot Solarisservers including Net Management port configuration SAN and network configuration, NIC teaming/aggregation (IPMP)
  • Work with SAN team to provision SAN and decommission SAN from older infrastructure during migrations
  • Use Live Upgrade to patch Solarisservers and convert from UFS to ZFS
  • Build SolarisLocal zones, branded and native, sparse and full root
  • Work with Sun SolarisZFS systems and VxFS
  • Installed and configured new hard drives and memory.
  • Install, configure, patch, and manage, and upgrade Ubuntu 12, 14
  • Package, Patch management, migration, integration & distribution in development, testing, QA,, the Production environment. (Testing: UAT, SIT, OAT, Performance testing)
  • Used Admintool for adding and managing new users, groups, software and printers.
  • Created disk groups, volumes, volume groups and RAIDs using VeritasVolume Manager.
  • Involved in disk configuration and disk crash recovery using format and fdisk. Bad spots on disk were repaired using repair and analyze. Created new slices, mounted new file systems and unmounted filesystems.
  • Installation, Configuration and Administration of High Availability Veritas Cluster Servers for failover and redundancy purpose.
  • Created Korn shell scripts to automate cron jobs and system maintenance. Scheduled cron jobs for job automation.
  • Involved in preparation of functional and system specifications. Estimated Storage requirements for applications.
  • Installed of all the required Software, patches, documentation, licensing trouble shooting.
  • Set up various user profiles, environment variables/security to ensure smooth operation.
  • Responsible for fax link and sendmail.
  • Coordinating with RHELSupport 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 a daily basis and monitoring the scheduled backups.
  • Resolved and supported in identifying root cause of the issue,ticket based problem management.

Environment: Sun Solaris 7,8, RHEL 5, 6, Windows NT 4.0, Sun Enterprise 4500, Sun Enterprise 250, IBM RS/6000, Motorola Machine, Pentium PCs, Genicom Printers and Laser Jet Printers, Veritas volume manager, VCS, VERITAS Net Backup 4.0.

Confidential

UNIX/Solaris Administrator

Responsibilities:

  • Installing and Administering Solaris Production servers.
  • NFS, NIS+ and Automounter Administration.
  • Configured Veritas Volume Manager.
  • Installing and Patching Solaris 7/8.
  • Installing new Sun Hardware.
  • Upgrading Sun Servers to Solaris 8.
  • User Account management using administration tool.
  • Volume Disc Management.
  • Disk mirroring and RAID implementation using Solstice Disk Suite and Veritas Volume Manager.
  • Used VERITAS Net backup tool for Backup and recovery.
  • Set up various user profiles, environment variables/security to ensure smooth operation.
  • Documented installation procedures, changes required in the present environment.
  • Attended team meetings, change control meetings to update installation progress, and for upcoming changes in the environment.
  • Installation of OAS (Oracle Application Server) on Solaris 8 and its configuration with oracle database.
  • Installed and configured new hard drives and memory.
  • Used VERITAS Volume Manager with Storage Administrator.
  • Created disk groups, volumes, volume groups and RAID using VERITAS Volume Manager.
  • Created, Mounted/Unmounted, Restored, took Backup of File Systems like UFS and NFS.
  • Performed maintenance on high availability servers running SUN and VERITASCluster. This includes setting up SUDO access for DBA and application account access.
  • Modify and used shell scripting to improve monitoring of the servers.
  • Did daily checks and disk space cleanup on assigned servers using Disk suite and VERITAS Volume manager.

Environment: Sun Solaris 7/8, Windows NT 4.0, Sun Enterprise 4500, Sun Enterprise 250, Sun Ultra 250 with RAID, IBM RS/6000, Pentium PCs, Oracle 9i, Perl

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