System Administrator Print Manager
Resume:
Rajesh Nayak
**********@*****.***
SUMMARY
•Over 12+ years of working experience on Red Hat Enterprise Unix, Linux (7/6/5), windows, Manhattan WMS, New Relic, Datadog, AEM 6.1 administration.
•Worked for NOC team for monitoring servers and network using New Relic, Datadog, Azure and PRTG and creating PowerShell scripts for alerts.
•Strong experience working with various Development & Test teams at an Enterprise level environment.
•Worked on Manhattan WMS administration and support, worked on Service now, kneat and TFS
•Troubleshooting SMC tickets raised by users and co ordinating to get them resolved.
•Actively worked on Deployments and roll backs with Development Team.
•Scheduling and coordinating Security Related tasks on healthcare servers and deploying them.
•Worked on Tech Refresh project for upgradation of platform to new software’s.
•Scheduled and worked on AEM maintenance activity and tar optimization/compaction of crx repository
•Co-coordinating with Developers and testers for bug fixing and providing logs for the same.
•Responsible for OS installation and configuration through network and standalone installation techniques and also installing third party software’s and services.
•Handling day-to-day User Administration tasks like adding, deleting and modifying user data and documenting all user data in a centralized location.
•Performance tuning of Linux machines under Test and Productions environments by kernel parameter tuning, identifying process that hog the system resources and containing them.
•Experience working in customizing the Kickstart and Jumpstart scripts to automate the installation of various servers used for various internal projects.
•Responsible for OS maintenance activities like upgrading the OS, updating the services and third-party software.
•Worked on dev ops and configuration management software’s.
•Worked and maintained integrity of Linux, Solaris servers by performing patching operations on a regular and planned way.
•Creating and administrating file systems LVM,ext4, ext3 and NFS on Several RHEL Versions.
•Working knowledge on TCP/IP, UDP protocols in solving network related issues on the servers.
•Working knowledge on Firewall scripts and securing Linux productions systems.
•Installation and configuration of Web Application servers like Apache, Tomcat and Web logic.
•Active involvement in testing of various Linux Environments in the Development/Test Stages to help create a better standardized environment and resolutions of any problems if any occurred.
•Experienced in documenting various maintenance activities and upgrades and changes in the network architecture.
•Worked with a bug/problem tracking system in responding to DNS requests, updates and tasks.
•Providing 24/7 technical support to Production and development environments
•Strong working knowledge of Switch and Router configuration and customization with VLAN and Inter-switch communication.
•Installation and configuration of web hosting administration such as FTP, SSH, RSH, Telnet, and HTTP.
TECHNICAL SKILL
Operating Systems: Linux Red Hat 7/6/5/4, AIX 6.1/5.3/5.2/5.1; VMware 5.3/4.1/3.5 Windows 98/XP//7, Windows Servers 2000/2003
Hard ware: HP ProLiant: DL 580/380 (G8/G7/G6/G5/G4) DELL IDRAC: (R710, R720, R910, R610, R510), X86 and Power7, Power6 ((p795, p780, p595, p590, p570, p550, p520, p690, p670 and p630)
Language: HTML, C/C++, Java Script, SQL, XML, Bash, & Shell Scripting.
Virtualization: VMware and vSphere, and VIO, KVM
Monitoring Tools: New Relic, PRTG and Datadog
Networking: TCP/IP, UDP, LAN, WAN, NFS, LDAP, DNS, SAN.
EDUCATION: B.E(Instrumentation Technology) Mysore university 1997
Professional Training and certifications: ITILV3 Foundation
PROFESSIONAL EXPERIENCE
Project: Nolan Transport Group, Dunwoody, Georgia (Jan 2022- Present)
Production Support Engineer /Linux System Admin
•Worked at NOC for monitoring the servers which are used for freight hawk and now beon application
Creating tickets during outage and follow up with stake holders.
•Worked on Dashboard New Relic, Datadog, App insight, azure and PRTG monitor to configure and send alerts to slack channel and pager duty application.
•Worked with Infra team to build and install applications on windows and Linux servers and fine tune them and worked on Git repository for branch creation.
•Worked on Python scripts to schedule some monitor jobs and send mail alerts.
•Involved in New relic to Datadog migration project.
•Created power shell scripts to send reports from server shared drive to slack channel. and track boot loop issues in server.
•Worked on CI/CD pipelines and Kubernetes to deploy code using gitlab repo and Jenkins with Run team.
•Having knowledge about MySQL and Postgres SQL.
•Worked and managed a team on project and weekly standups.
•Involved in outage calls to find RCA and Monitoring solution for same.
Project: UPS-SCS Alpharetta, Georgia (Aug 2017- Dec 2021)
Linux Administrator/Application support
•Worked on Manhattan Warehouse management Infrastructure and application support which is hosted on Windows 2008/2012, Red hat Linux 6 / 7 and Oracle servers.
•Monitoring the health of servers by Implementing the scripts and scheduled task and rectifying issues related to capacity of server.
•Supporting developers for their day-to-day deployments and troubleshooting issues with regards to Infrastructure and code on DEV/FIT/UAT and Prod issues by creating HDFS tickets
•Monitoring Oracle 12c Database using Oracle OEM and Aptom tools and mitigating DB locks which are inactive for long. Worked on AWS to manage servers and deploy applications.
•Working with Production support to rectify issues in printers using CUPS software in Linux and Print Manager in Windows.
•Having knowledge in trouble shooting MQ servers,JBOSS, JDBC
•Used Ansible to schedule patching on servers
•Responding Developers and user issues by creating SMC Change and getting approved in Kneat system.
•Used Python script to schedule some clean up jobs inside Linux servers for Logs and check space.
•Working on crystal reports to deploy reports for Developers on Test and Production environment
•Updating Java and python software in servers.
•Worked in TFS to create Label, TOD and uploading files and deployment code to servers.
•Responsible for Planning and scheduling the OS security updates on healthcare infrastructure using Leap and coordination with DDS team for Database patching monthly and quarterly.
•Worked on Disaster recovery exercise on healthcare production environment between Winward and Ramapo Ridge NJ data centers.
•Deployed Java,Python and SQL in production environment.
•Having knowledge in Redhat satellite .
•Worked extensively on SQL queries to deploy and check issues in data.
•Worked on yearly password change exercise in healthcare Infrastructure
•Worked on Tech refresh project to upgrade the server O/S and new Database for Manhattan WMS
•Worked on Co ordinating System engineering Team to rectify any system related issues.
•Worked on Windows servers on IIS and related issues and monitoring scheduled tasks.
•Have knowledge in agent-based monitoring agents like Splunk, New relic and BMC patrol.
Project: AT&T Atlanta GA (Aug 2016- June 2017)
AEM/Linux Administrator/Application support
•Worked on AEM (Adobe Experience Manager) content management system for AT&T.com.
•Supported server system including Author and Publish instances of non-production environment.
•Worked on dispatcher configuration for new AEM websites by creating new farms in dispatcher.any
•Worked on bulk asset upload using the curl console and very large AEM packages.
•Worked on AEM server performance issues by doing various optimization techniques like tar optimization.
•Created various rules in dispatcher and disabling various system level AEM application folder access.
•Worked on upgrade of AEM dispatcher module from 3.0 to 4.2
•Enhanced the Asset workflow to generate the custom renditions and added new approval steps
•Installation, configuration of Linux, Nginx, Apache, Jboss, AEM 6.1 and Jenkins on VM box.
•Configuration and settings of Jenkins jobs scheduling and running the builds.
•Worked on AEM Upgrade from 6.1 to 6.2 version
•Worked on AWS with Ec2 and code deployments.
•Deployment of AEM code through Jenkins, Changing the repository Branches and scheduling the builds
•Worked on code cloud git repository for version control.
•Worked on monthly releases of services and upper funnel teams. And support after releases.
•Resolved user issues on TDP and Jira Tickets.
•Created a shell Script for automating the AEM maintenance script and scheduled the corn jobs.
•The following maintenance activity is scheduled workflow clean up, version clean up and package cleanup.
•Trouble shooting AEM issues by verifying error logs inside CRX and resolving issues faced by developers.
•Worked on Integrify project for IIS hosting, naming tool and certificate renewal on SQL server and windows 2008.
•Checking the bundle status and configuration details inside AEM system/console for developer’s bug fixing.
•Used Package Manager for creating uploading and installing the packages.
Project: Travelers Hartford, CT (Nov2015- Aug 2016)
Linux Administrator
•Installation, configuration and Operating System upgrade on, Red Hat Linux 6.x, 5.x,
•Administrated server consolidation program through use of VMware ESX server and VMware Virtual Center
•Used and worked on Kick Start configuration to handle issuances and kernel configurations.
•SWAP box configuration, Implementation of disaster backup and recovery.
•Performance Management & Tuning of RHEL.
•Created, and Installation of VIO Server and configured several VIO client LPARS on power6 (p550 and 570) models.
•Installed and configured SAMBA server for windows and Linux connectivity.
•Worked on Linux patching, MySQL, open ssl and settings.
•Worked on puppet for configuration management and settings.
•Worked on Red hat satellite server for updates, configurations and reports.
•Having knowledge about chef and wireshark.
•Installed apache and MySQL, php, jboss etc
•Implemented NIS and NFS for administrative and project requirements.
•Migrated Unix applications to Linux platform (ETL Informatica, Oracle, DB2, AD/LDAP etc.)
•Worked with several teams and guided 1st Level and 2nd Level teams to handle Incidents related to OS, Applications and Hardware.
•Having knowledge in python scripting.Suse Manager
•Discussed and documented Internal WIKI pages about the SLAs, OLAs and other ITIL best practices used to address the tickets in a timely manner.
•Excellent understanding of HP Service Manager and ability to create/modify/edit Interaction (SD-Service/Request), RFCs, Change Records, Incidents, Problem Record, CAB/eCAB, Test and Production Implementation Readiness.
•Helped the team in migration activities and actively involved in Pre-Assessment Phase, Assessment Phase, Build Phase, Validation Phase, UAT-1 (by Application Areas), Implementation Readiness (Change Records, Change Windows, Impact analysis), Migration, Cut-Over/Night-of-Implementation, UAT-2 (Final Validation by Application Areas) followed by Final Transition from Project to Service.
•Installed and Configured Web and investigate the configuration changes in the production environment.
•Responsible for multicasting of various components as a system administrator.
•Worked closely with DBA team to ensure optimal performance of databases, and maintain development applications and databases
•Tuning the kernel parameters based on the application/database requirement.
•Monitoring system resources, logs, disk usage, scheduling backups and restore
•Set up Quotas for the user accounts & limiting the disk space usage.
•Configuring SUDO and granting root permission to users for performing certain activities.
•Configure Crontab entries and update automation scripts.
•Knowledge in Adobe, Hyperion, development servers.
•Upgrading RHEL 5.0 to RHEL 5.9/6.4 using live upgrade and manual upgrade.
•Created BASH shell scripts to automate cron jobs and system maintenance. Scheduled cron jobs for job automation.
•Worked on Splunk setup and configuration.
•Work with security team to modifying application users’ password policies, group policy, UID and GID assignment policies.
•Monitored the performance of the system using top, sar, ps, prstat, vmstat, netstat, iostat, and cpuinfo to check the CPU utilization, bottlenecks of I/O devices, memory usage and network traffic.
•Troubleshoot network connectivity used ping, netstat, ifconfig, and trace route commands. Login to the remote system using sudo, putty, and telnet. Transfer files across the systems on the network used ftp, scp, and rsync commands.
•Experience managing various file systems using LVM and also configured filesystems through network using NFS, NAS, SAN methodologies and installed RAID devices.
•Linux technical support and prepared technical documentation for check in verification.
•Regular backing up of critical data and restoring backed up data. Worked in solving tickets issued on day to day activities and problems related to development and test servers.
Environment: Red Hat Linux 5/6, VMware ESX 5.x, Weblogic 12/11, Oracle 10g, VMWARE, NFS, SAN, NAS, ITIL.
Environment: RHEL 5/6, Oracle, RAC, LDAP.
Project: Athena DDS Mumbai, India (May2008 – Dec2013)
Unix/Linux Administrator
•Installation and Configuration of Redhat 6.x/5. x.
•Installation, configuration and management of Apache and Tomcat servers.
•Performing Nessus Scan on quarterly basis to scan for vulnerabilities in Web and Application servers.
•Applying patches to fix the holes that are found during the quarterly scan basis using Nessus scan.
•Upgraded and maintained servers, operating Systems and patches.
•Install/configure/maintain the Solaris / Linux servers, NIS, DNS, NFS, Mailing List, Send mail, apache, ftp, sshd.
•Managed NetaPP FAS 920 Storage and implemented RAID.
•Configuring and optimizing open-iSCSI in RHES for SAN using iOmega technology.
•Install host firewall IPTables for Redhat Linux.
•Performed TCP/IP, DNS and DHCP administration.
•Setting up Oracle 10g server in Linux/Unix environment.
•Maintained and monitored all of company's servers’ operating system and application patch level, disk space and memory usage, user activities on day-to-day basis.
•Monitored and fine-tuning system and network performance for server environments running Solaris, Redhat Linux.
•Troubleshoot various systems problems such as application related issues, network related issues, hardware related issues etc.
•Experience managing various file systems using LVM and SVM and also configured filesystems through network using NFS, NAS, SAN methodologies and installed RAID devices.
•Environment: Red Hat Linux 5.x/6.x,
HCL Info Systems, Mumbai, India (May2004 to Apr 2008)
System Administrator
•Technical support of Operating Systems (Unix, Windows NT/2000/2003/SQL servers)
•Supporting a user base of more than 100 at multiple locations
•Backup Management, Reporting and Disaster Recovery
•Virus Protection and Eradication
•Maintenance of MS Exchange Environment
•Configuring and troubleshooting Microsoft Outlook and Outlook express
•Installation & administration of Windows NT, Windows 2000/2003 Domain Controllers, Active Directory Design & Architecture, File/Print/Database Servers
•Day-to-day system administration and troubleshooting using Server Manager, User Manager for Domains, Network Monitor, Event Viewer, Performance Monitor and NT/Exchange command line and Resource Kit Utilities
•Configuration and deployment of print servers and file servers under multi-platform environment
•Worked on POS systems for bill payment and handled Teams of engineers at multiple cities
•Built/Jumpstarted/Installed servers from the scratch
•Installation and configuration of Oracle Server and Client
•Environment: Windows 2003/2000, NT, Unix, Ms Exchange
Contact this candidate