Sr Linux & Unix Engineer Resume
Mount Laurel, NJ
SUMMARY
- Experience in UNIX/LINUX, RedHat Linux Administration, Engineering and Development of Information Systems.
- Extensive experience in installing, configuring, maintaining, design, development, implementation, and support on, & Red - Hat EL4.x/EL5.x/EL6.x/EL7.x Linux IBM AIX 5.3/6.1 and Solaris 9/10/11 Operating Environments.
- Experience inSolaris 10/11 containers, zones, resource managementand theservice management facility.
- Experience in SAN migration, Physical to Virtual and Virtual to Physical hardware migrations.
- Experience in moving servers between the data centers.
- Provided clients wif remote support of the installation, configuration, and usage of MicrosoftOffice365on various platforms and devices.
- Produced, maintained, and improved documentation on various internal processes, OS standards, and refresh cycle schedules.
- Experience in installation of OracleRAC 11g on Solaris V10, V11 servers.
- Knowledge ofF5 Load Balancerwif Web servers to provide scalability and reliability.
- Install, configure and administer JIRA and Confluence and other development tools.
- Administered VMware virtual machines, hypervisors and Veritas clusters wif support from virtualization engineers.
- Experience inShell (BASH/Korn)andPERL Scriptsfor Solaris and Red Hat Enterprise Linux.
- Ability to build deployment, build scripts and automated solutions using shell scripting and Python.
PROFESSIONAL SKILLS:
Operating Systems: UNIX, Red hat Enterprise Linux 5/6/7, Windows, Solaris V9/10/11
Enterprise Servers & Middleware: IBM WebSphere Application Server 8.5/8.0/7.0, Apache HTTP/Tomcat, WebLogic
Tools: Veritas Volume Manager, Veritas Net backup, Cluster Server, Service Now, LDAP, Active Directory, Centrify, Splunk, Chef, Ansible, Kubernetes, VMware, MS Office, HP-ALM, Jira, Jenkins.
Programming Language: C, VB Script, Basic Java, Shell Scripting, Bash/Korn, Perl, Python
Database: ORACLE, MySQL-SQL, MS SQL Server
Web Technologies: HTML, XML
Web Browser: IE, Mozilla Firefox, Chrome, Safari.
Networking: TCP/IP, DNS, NFS, NIS, SSH, DHCP, Cisco Routers / Switches &LAN
Storage: LVM, SCSI, Ext3, Ext4, Ext5, XFS, NAS, SAN, RAID, Net App Filters, ZFS, EMC
PROFESSIONAL EXPERIENCE
Confidential, Mount Laurel, NJ
Sr Linux & Unix Engineer
Responsibilities:
- Involved in day-to-day Operational maintenance, Support, OS installations and upgrades, On Call Rotation and Utilizing Enterprise Support.
- Building Solaris 10,11, RHEL (Linux), Axiad and AIX servers using kickstart process getting the kickstart file from the kickstart server.
- Installation, configuration and upgrade of RedHat Linux 5/6/7, SUSE 10/11/12 operating systems. Configuring SLES 15 and RHEL 8 wif application customization.
- Building Servers using Kickstart in Linux, NIM in AIX, Jumpstart in Solaris, Manual installations.
- Proficiency in multiple databases like MongoDB, MySQL, ORACLE, DynamoDB and MS SQL Server.
- Automating Linux Environment by maintaining Stable configuration files among all application environments by using Enterprise Puppet and BIT Bucket
- Install configure High Availability solution using VERITAS Clustering products VxVM, VxFS, VxCFS.
- Experience working wif Apache Hadoop, Kafka, Spark and Log stash.
- Experience wif capacity planning, scalability, performance, load testing Understandingf and ability to invoke web services - REST (wif RAML or JSON/XML), SOAP (wif WSDL).
- Extensive Development experience in creating web applications and web services to integrate in house tools in efforts to create an automated infrastructure.
- Handson experience wif Solace administration.
- Deploying Solace VMR in AWS.
- Experience wif SOLACE core concepts and the basic introduced in persistence wif Queues.
- Experience wif capacity planning, scalability, performance, load testing Understandingf and ability to invoke web services - REST (wif RAML or JSON/XML), SOAP (wif WSDL).
- Store VMware content such as ISO images, OVF VMs, OVA VMs and valuable scripts on a local or remote data store to build out Windows Virtual Machines (VMs), ESXi hosts or Linux VMs. The content is accessible to anyone wif admin rights to the vCenter environment on which the content is hosted. So anyone wif access to the vCenter and its data store can initiate an unauthorized VM build wif unprotected VMware content.
- Managing /etc/passwd, /etc/groups, Sudoers, Sudoers.d, syslog, rsyslog, ntp.conf, resolv.conf by using Puppet Enterprise.
- Managing Net Zones, Quest and Vastool configurations, maintaining OU Structure by Configuring through Puppet Enterprise.
- Implementing CI and CD using Jenkins on SAP, EDI and Infrastructure automation among other communication Applications
- CA Robot Monitoring configuration on Severs and Managing infrastructure.
- Implementation of CA Unified Infrastructure Management (UIM) technologies.
- Automating Build Process configuring using Puppet and Deploying Templates on vmware environment from Content library.
- Support and configuring according to application upgrades and Solve communication and performance Tunning among UNIX, Linux software & hardware.
- Leverage NMAP and SolarWinds to evaluate internal network and developed plan to conduct security assessment.
- Monitor network nodes wif solarwinds Network Performance Monitor
- Worked on Installation and configuration of DevOps tools ( Jenkins, Docker, Git (GitHub), BitBucket, Puppet, ).
- Ability to debug using tools like SOAP UI. Hands-on experience on writing RAML files for invoking REST API
- Created various Modules and Manifests in puppet to automate various applications.
- Extensively worked on creating Puppet modules as per the business requirement.
- Experienced in WAMP (Windows, Apache, MYSQL and Python/PHP) and LAMP (Linux, Apache, MySQL, Python/PHP) Architecture.
- Replicating Multiple data centers storage and migrating vm’s among DataCenters.
- Installation, configuring and administration of DNS, NIS, NFS, NTP, Samba, SNMP & DHCP servers and troubleshooting Network issues among Vmware environment.
- Configuring work stations for Client training on Red Hat & SUSE.
- Performed Branching, Tagging, Release Activities on Version Control Tools: SVN, GIT, BitBucket.
- Developed shell and python scripts for automation of the build and release process, developed Custom Scripts to monitor repositories, Server storage. Implementing and configuring Python Virtual environment for application use.
- Managing VMware Templates (in VMWARE content library) and AWS Cloud Formation Templates.
- Sound noledge and experience of Java script, JAVA, .Net, Scala, Node.js and R and MPP technologies like AWS Redshift/Spectrum, Teradata, Netezza.
- ITIL processes on request management and incident management.
- Create scalable and load balanced asynchronous processing actions using job queues.
- Hands on experience in managing AD and Security groups. Managing AD and Security groups by using puppet Enterprise.
- Download the Solace VMR Community Edition container and run it in Oracle VirtualBox.
- Managing Spacewalk and RedHat Satellite Repo’s by Puppet Enterprise.
- Cisco UCS Hardware upgrade (CPU, Memory, blades replacement etc) and firmware upgrades. Support for Intel server blades, Dell PowerEdge servers.
- Troubleshooting vSphere/ESXi Cisco UCS performance related issues.
- vSAN 6.0 configuration including hardware configuration, configured netapp SAN storages for the VMware environment.
- Configure the network and security layer (vlans, routing table in L3 switches, Cisco ASA firewall etc) for VMware environment.
- Involved in Backup Snapshot and DB’s Backup on AVAMAR Backup.
- Deep understanding in TCP/IP network troubleshooting issues.
- General Parallel File System (GPFS) installation, configuration, administration, troubleshooting, migration, adding/deleting new clients in cluster, adding/deleting new file systems, and more.
- Adding Multipath disks for oracle RAC (Real Application Cluster) high-availability and configuring in under configuration file-systems in Solaris and Linux.
- Tier 1 level system administration wif Red Hat Enterprise Linux (RHEL)and SUSE Enterprise.
- Hands on Experience on Shell Scripting, Unix Scripting, python for automating environment.
Confidential, Somerset, NJ
Linux/Unix Admin
Responsibilities:
- Setting up Splunk monitoring on Red Hat Linux and Windows systems.
- Created and configured management reports and dashboards in Splunk for application log monitoring.
- Documented all build and process related items. Level one support for all the build and deploy issues encounter during the build process.
- Developed web services using Spring Boot, Kafka, Hibernate. Comfortable creating REST services.
- Proficient in patching RHEL, AIX and Solaris servers to recommended security levels Maintaining and upgrading operating systems like RHEL and AIX platforms.
- Created RHEL and Windows Virtual Machines as per the business requirements.
- Working closely wif Web Administrators to setup an automated deployment for SharePoint applications using SVN Tools.
- Provided day to day support to RHEL and AIX servers through various ticketing tools and monitoring tools like Service Now.
- Performed and deployed builds for various Environments like QA, Integration, UAT and Productions Environments.
- Maintained and executed build Perl scripts by coordinating wif development and QA teams.
- Worked on subscription queue and interrogate the SOLACE message router.
- Installation, Configuration and Administration of Red Hat Linux 5.x/6.x and Solaris 10 comprising of testing, tuning, upgrading and loading patches, troubleshooting both physical and virtual server issues.
- Responsible for hardware, firmware, Network & Firewall troubleshooting and upgraded, maintained Linux/Unix servers.
- Experienced in configuringKickstartand Jumpstart servers to initiate installation ofRed Hat Linuxand Solaris on several machines.
- Installed and configured VERITAS Volume Manager (VxVM), Disk and file system management through Veritas Volume Manager, Solaris Volume Manager (SVM)and Solstice Disk Suite on Solaris and using Logical Volume Manager (LVM) for other flavors of UNIX.
- Troubleshot free/busy information between Office 365 and on-premise users.
- Installed and applied the patches to theSolaris 10, Oracle and WebLogicrunning onSolaris 10environment to keep the applications updated.
- Planned/installed/maintained clustered environments for distributed applications usingVERITAS Cluster, Sun Cluster and Red Hat Linux Cluster.
- Configured WAS, IHS, MQ, Connect Direct, FTP, Postfix, etc. under VERITAS VCS configuration.
- Expertise in scripting for automation and monitoring using Bash and Perl scripts.
- Worked on Shell and Python scripting.
- Using Service Now/ITIL ticketing tool, created Incident tickets, Requests and Changes.
- Created Incident tickets and assigned to support group, transfer to one support group to another support group using Service Now tool.
- Maintained a disaster recovery plan by documenting current system configuration, identifying, analyzing, and evaluating critical data/hardware issues and documentation and testing plan.
- Created manual Test Cases in HP QC/HP ALM for various User Stories based on Release and Sprint Plan.
- Executed test cases and test scripts for manual testing. Defects are raised in the HP Quality Center/HP ALM for logging, tracking and reporting bugs in the application.
- Installation, configuration, support and security implementation on SSH, NFS, DHCP, DNS, HTTPD services.
- CreatedBash/Korn, Perl, shellscripts to monitor system resources and system maintenance.
- Worked on MySQL server administration on Linux and Windows
- Conducted analysis and evaluation of existing systems to upgrade latest versions of JIRA.
- Developed manual and write technical documents forNASandSAN.
- Designed and integrated centralizedSANsolution, increasing application speed and decreasing production database refresh times.
- Mirrored existing logical volumes & created volume groups, disk groups & set up theRAID(0, 1 and 5) usingVERITAS volume manager.
- Administration of NFS, DNS, NTP, Auto mounts, send mail and Print servers as per the client's requirement.
- Installed and configured Sudo for users to access the root privileges and Performed User Account management, data backups, and users' logon support.
- Involved in creating logical volumes, backups, managed large hard disk farms and resized disk partitions using Logical Volume Manager (LVM) commands on Red hat Linux.
- Managing systems routine backup, scheduling jobs like disabling and enabling cronjobs, enabling system logging, network logging of servers for maintenance, performance tuning, testing.
- Creation and management of user accounts and groups according to the security needs and adding the packages and patches when needed and Permissions policy management and quota implementation.
- Good noledge in awk & Stream Editor (Sed) and using them in in Unix Shell and Perl script.
- Remote monitoring and optimization of Server for File system, disk utilization, Memory utilization, threshold maintenance and Network traffic.
- Package management using RPM, YUM and UPDATE in Red Hat Linux.
Confidential, Pennington, NJ
Linux/Unix Admin
Responsibilities:
- Installation, Configuration & Upgrade of Redhat/SuSE Linux, AIX operating systems.
- Implementing file sharing on the network by configuring NFS on the system to share essential resources.
- Used Solarwinds Network Configuration Manager to backup network node configuration.
- Worked on building and supporting on Sun Midrange platforms and IBM AIX Midrange platforms.
- Worked on performance tuning in Solaris, Linux HPE & HPUX.
- Performed package and patching management and debugging in all flavors of UNIX& Linux.
- Troubleshooting and analysis of hardware and failures for various Solaris servers (Core dump and log file analysis).
- Installation and configuration of Veritas Volume Manager (VXVM), Veritas file system (VFS). Implementation of RAID techniques and creation disk groups and volumes. Managing disks and file system using Veritas Volume Manager (VxVM), HPE Service Guard in HP-UX and Linux servers.
- Installed, configured and managed Oracle Real Application Cluster (RAC) in Solaris, HP-UX and Linux servers.
- Patches and Package administration for installation of patches as per company policy and installation of packaged application.
- Installed, configured and managed Redhat Cluster Suite in Linux servers.
- Worked on live upgrades in Solaris and HP-UX servers. Configured and managed Zeta byte File System (ZFS) in Solaris, HP-UX and Linux Servers.
- Performed configuration and troubleshooting of services like NFS, NIS, DHCP, FTP, LDAP, Web servers, Samba server, and Apache server.
- Planned and implemented migrations from lower end to higher end in OS level and Hardware level in HP-UX and Linux servers.
- Configured and managed Redhat satellite Network server, performing package management tasks and Terrata updates.
Confidential - Merrimach, NH
IT Support Consultant
Responsibilities:
- Provided desktop support, maintained database of support requests and ensured that all system changes were documented.
- Assisted wif technical setup for internal, community and commercial meetings and events.
- Developed content for security awareness training program that included Social Media, Mobile, Email, and Encryption modules.
- Assisted wif PCI compliance remediation support program including validating TLS usage on ecommerce websites and confirmation of least privilege security permission
- Evaluated IT Data Center systems to ensure compliance wif security standards.
- Managed anti-malware program to ensure that systems were updated to protect against latest threats.
- Performed internal security assessment using Nessus and Metasploit, summarized results and provided recommendations to CIO and his staff on areas to improve overall security program.
- Supported program to rollout RSA soft tokens for two-factor authentication for remote access.
- Collaborated wif a variety of technology service providers, research emerging threats, and stayed abreast of security technology trends, standards, strategies.
- Developed and maintained intranet site, created FAQs, and self-help IT information.
Confidential
Systems Administrator
Responsibilities:
- Installation and administration of RHEL 4, 5, and 6, Solaris 8, 9 and 10, and SUSE 9/10.
- Configured kickstart server and applied patches to the servers using Satellite.
- Installation, configuration and administration of VMware, Solaris Zones and LDOMs.
- Installed, configured, cloned VMs on VMware 5, Vsphere 4.0, configured ESX hosts, adding datastores to ESX hosts, creating switches, templates, migrating VMs across ESX.
- Running jobs and applying patches using HP Server Automation Tool (HPSA).
- Installed several security packages like SNORT, tcpd, tcp-wrappers & ASSET.
- Created, Implemented and maintained Disaster Recovery Site for File Server using DFS.
- Performed capacity analysis, monitored and controlled disk space usage on systems.
- Set up user and group login IDs, network configuration, password, resolving permission issues.
- Checking the Logs for errors in the NAS boxes, having noledge on snap lock volumes, thin provisioning and Fabric switch zoning (Brocade).
- Installation and maintaining the OpenStax hardware and software.
- Implemented and Enhanced the Existing Scripts which are developed in BASH and Perl.
- Installation and up-gradation of the operating system (RHEL,Ubuntu) and other applications.
- Implementing Puppet for a start-up in preparation for compliance requirements due to an impending acquisition by a large, publicly traded company.
- Developed Ansible playbooks to configure, deploy and maintain software components of the existing/new infrastructure.
- Developed Puppet modules to automate deployment, configuration, and lifecycle management of key clusters.
- Wrote puppet manifests for deploying, configuring, and managing collectd for metric collection and monitoring.
- Build automatic provisioning system wif kickstart and Puppet.
- Responsible for maintenance of development tools and utilities and to maintain shell, Perl automation Scripts.
- Set up and support network hardware using TCP/IP, SMB, VPN, IPSEC, VoIP.
- Manage a VoIP phone network, IPad and Microsoft Surface support/configuration.
- Worked wif project manager and auditing teams to implement PCI compliance.