Unix/linux Admin Resume
Dallas, TX
SUMMARY
- Around 6+ years of professional IT experiences in Infrastructure Support/operations on Solaris, Linux, AWS.
- Experience in Unix/Linux Systems Installation, Configuration, Implementation, performance Tuning, Maintenance, Security Setup, Support & Trouble - shooting.
- In-depth understanding of the principles and best practices of Software Configuration Management (SCM) in Agile, SCRUM, Waterfall methodologies.
- Hands on experience with VMware, Openstack and Amazon Cloud Services, (EC2, S3, EBS, ELB, Cloud Watch, Elastic IP, RDS, SNS, SQS, Glacier, IAM, VPC, Cloud Formation, Route53) and managing security groups on AWS.
- Installation, Configuration, Implementation, Maintenance, Support & Trouble-shooting of middleware products Weblogic, WebSphere, MQ, Http Server.
- Worked in Networking and possess knowledge of TCP/IP, NIS, NFS, DNS, Firewall and SMTP (Sendmail).
- Experience in Shell Scripts, hands-on solving of day to day operational issues, Resolution of technical issues on system integration and support.
- Administered and supported high availability, data replication, business persistence, fail-over, fail-back using VERITAS Cluster Server 5.X/6.X.
- Experience in deploying and managing virtualization technologies using VMware/KVM.
- Writing/Modifying various Manifests and applying them on the nodes using Puppet.
- Automate configuration through Puppet.
- Experience in working with Redhat satellite server.
- Experience in Configuring Jumpstart, Cobbler, and Kickstart for Network Installation on various Operating System.
- Strong analytical skills to solve complex and technical issues.
- Good Knowledge and Administering Virtualization technologies Ldoms, Zones.
- Worked with container based deployments using Docker, working with Docker images, Docker hub and Docker registries.
- Everyday UNIX and Linux Server administration, deployment, configuration, troubleshooting and server builds.
- Knowledge on version control systems like GIT.
- Managing Monitoring solution using Nagios/Splunk Environment.
- Performing security audits and remediating the Vulnerabilities.
- Experience in various IaaS architectures including Redhat OpenStack, AWS, and Azure.
- Constantly strive to keep server environment updated, secure, stable, meet SLA’s and keep server uptime of 99.99%.
- Sound understanding of IT Infrastructure Administration with project management skills.
- Experience of working in Data centers with 24X7 Production and On-Call Environments.
- Performed health checks for servers inside theDatacenterto ensure continued functionality.
- Asset management and inventory for software and hardware.
- Tape Management for networker backup, in which all the daily tapes are stored inDatacenter& Month end tapes are sending to DR site.
- Handed & updated CMDB whenever there is server movement, installing & removal of server from Datacenter.
- Recorded Incident Reports for all major incidents and ensuring repeated incidents are closed via Problem Management.
- Experience in providing day-to-day user administration like adding/deleting users and managing users queries.
- Team Management and Vendor Management skills.
- Hands-on experience with different types of storage structures (SAN/NAS/DAS).
- Experience in Package Administration, RPM, User administration (creating user ids, password management, permissions).
- Experience on Disk Administration using VXVM, SVM, LVM, and ZFS.
- Good communication and documentation skills, proven ability to work on multiple tasks concurrently completing them with in time according to SLA (Service Level Agreement) and provided on call 24/7 support.
TECHNICAL SKILLS
Operating Systems: Solaris9, Solaris10,Solaris 11, RHEL 6,7,Centos 6
Scripting Language: Bash,Perl
Tools: ITSM
Databases: Oracle 10g, Oracle 11g, Oracle RAC, OEM
Application Servers: WebSphere, Apache tomcat, Weblogic, JBoss
Monitoring: Nagios, Splunk
Virtualization: Vmware, KVM, OVM.
Hardware: Oracle, HP, Cisco, Oracle and Fujitsu
Protocols: TCP/IP, SNMP.
Cloud: AWS, Openstack, Azure
Configuration Management: Puppet
Sparc Platform: Sun Fire V440, Sun Fire v240, Sun Fire v210,T1000,T2000,T5120,T5220,T5140,T5240,T5440,SFV480,SFV490,T3-1.T4- 4,T5-2
Mid Range& High End Server: Sun Fire v880,Sun Fire v890, SE M4000,SE M5000,SE M9000.
X86 Platform: X4100, X4200,X4600,X2200,X2100,X4170,X4270,Cisco UCS C-240, HP Blade system C7000.
Storages: Sun Storage 3000 family, storage 6140, EMC Clarion, VNX.
Tape Library: Sl500.
PROFESSIONAL EXPERIENCE
Confidential, Dallas,TX
Unix/Linux Admin
Responsibilities:
- Systems administration, maintenance and monitoring various day-to-day operations.
- Resolving the Issues for Solaris, Linux servers with in the Specified SLA.
- Performance monitoring and trouble shooting.
- Troubleshooting panic reboot, server unresponsiveness, End user/faulty hardware issues.
- Coordinating with FE for faulty hardware replacement (SB, CPU, DIMM, HDD etc) which caused for panic/reboot.
- Design EC2 instance architecture to meet high availability application architecture and security parameters.
- Provide highly durable and available data by using S3 data store, versioning, lifecycle policies, and create AMIs for mission critical production servers for backup.
- Worked with IAM service creating new IAM users & groups, defining roles and policies and Identity providers.
- Managing server related information through CMDB.
- Experience in creating file systems using LVM, SVM, VxVM on RedHat Linux and Solaris.
- Worked on incidents using Service now ticketing tools.
- Experience on YUM Configuration and management.
Environment: RHEL 6,RHEL 7, Solaris 11, Solaris 10,Vxvm, Sun Blade 6000, T6340,Cisco UCS C-240, HP Blade system C7000
Confidential
Unix/Linux Admin
Responsibilities:
- Experience in handling an enterprise environment which has more than 4000+ servers and to provide end to end support for Solaris, Linux operating systems and hardware perspective.
- Troubleshooting Linux/Solaris related issues hosted on Oracle, CISCO UCS Manager, AWS & VSphere.
- Troubleshooting panic reboot, server unresponsiveness, End user/faulty hardware issues.
- Create Change Management records for replacing faulty components/ break-fix activities by adhering to customers Change Management guidelines.
- Performing server acceptance once the server is build and will be added to configuration database.
- Design EC2 instance architecture to meet high availability application architecture and security parameters.
- Provide highly durable and available data by using S3 data store, versioning, lifecycle policies, and create AMIs for mission critical production servers for backup.
- Participated in working on Openstack services like Nova, Neutron, Swift, Glance and Heat.
- Strong working experience on Disk Administration using VERITAS Volume Manager /4.x/5.x Solaris Volume Manager, RHEL LVM, ZFS.
- Administration of Veritas/Sun cluster.
- Managing Veritas volume replicator (VVR) between primary and DR.
- Monitor, visualize, manage storage and cluster resources, and generate reports using veritas infoscale Operations Manager.
- Wrote puppet manifests for deploying, configuring and managing info for metric collection, Packages installation and monitoring.
- Joining the ECC calls (Sev1) as soon as you see them either through email or get the pager alerts to phone.
- Planning & Resolving the Issues for Solaris, Linux servers with in the Specified SLA.
- Performance monitoring and trouble shooting.
- Patch management and package management on Solaris hosts.
- Created multiple shell scripts (Solaris/Linux) to automate daily administrative tasks.
- Modify scripts in Perl as well as Shells Bash.
- Managing server related information through CMDB.
- Configuration & Administration of Solaris Zones and LDOMS.
- Experience on physical servers migrations to virtualization (P2V, V2V).
- Start, Stop and Modify the Status of a Virtual Machine / Access a VM Console / Configure Systems to Launch At Boot Time.
- Managing on calls with 24X7 and fix the issues within SLA.
- Experience on YUM Configuration and management.
Environment: RHEL 6,RHEL 7, Solaris 11, Solaris 10,SUN/VERITAS Cluster Server, Puppet, SE M9000/M5000,Sun Blade 6000, T4-4,T5-2,T5440,Cisco UCS C-240,HP BL460c Gen8,HP Blade system C7000.
Confidential
Unix/Linux Admin
Responsibilities:
- Systems build, administration, maintenance and monitoring various day-to-day operations.
- Administration and troubleshoot skills on Disks & File Systems for Linux and Solaris systems.
- Troubleshoot and configure additional swap for Linux and Solaris servers.
- Work on single point of failover (SPOF) servers and arrange the standby server as project required.
- Documentation of all activities and preparing run books for Linux and Solaris systems.
- Proactively used monitoring tools (Nagios, Solar Winds) to determine production issues.
- Remote management of Production, development & DR servers.
- Red hat and UNIX based OS installation on different architectures using jumpstart/Kickstart.
- Responsible for basic bash scripting.
- Developed bash shell scripts for automation.
- Rotate logs using logrotate.
- Experience in creating file systems using LVM, SVM, VxVM on RedHat Linux and Solaris.
- Resizing of VERITAS File Systems-Extension and shrinking of Vxfs.
- Disk group administration, Creating and removing of Volumes.
- Manage file systems using Logical Volume Management, Resize file systems and protect them with LVM Snapshots.
- Worked on incidents using Service now ticketing tools.
- Worked with development teams to provide a consistent platform for software development.
- Experienced at managing the escalation of cross-functional problems with multiple vendors
- Having ability to quickly identify a problem and find multiple creative solutions.
- Having ability to work under pressure with many assigned tasks and hard deadlines.
Environment: Solaris 9/10, Sparc Enterprise M9000/M5000,T4-4,T4-1,T5220, SUN FIRE V880V890,HP Proliant DL 360,380, Red hat Linux 6, web sphere 6.1,SVM,VERITAS Volume Manager 4.x/5.x, LVM.
Confidential
Systems Engineer
Responsibilities:
- Installation, Configuration, Upgradation and administration of Sun Solaris, Red Hat Linux.
- Troubleshooting issues at Hardware, boot and OS level.
- User account management and support.
- Executing Incident and Change Management tickets as per the defined process.
- Managed Disks and File systems using LVM & SVM.
- Coordination with Vendors for any issues related to OS and Hardware.
- Monitoring & managing Datacenter and to provide 99.5% uptime to the end user
- Patch and package management.
- Performed Firmware Upgrades on Sun Servers.
- Live upgrades of SUN servers.
- Case logging/follow-up and technical data collection (like vrtsexplorer, sosreport & sun explorer) with Sun, Redhat & Veritas.
- Exposure to bash scripting.
- Configured soft and hard links, NFS soft and hard mounts on Linux and Solaris servers.
- Participated in multiple Data Center outages and sev1 issues.
- Monitor network health using Nagios.
- Participated in Datacenter migration activities.
- IPMULTIPATHING configuration in Solaris and NIC Bonding in Linux.
- Testing failovers and troubleshooting IPMULTIPATHING issues.
- On-call support as per the requirement.
- Zone creation, configuring and troubleshooting.
- Spearheading efforts across installing, configuring and troubleshooting Sun Solaris Operating Systems.
- Responsible for Logs Monitoring, Disk Usages.
- Scheduling jobs using Crontab.
- Used FSCK on file systems successfully when critical data got corrupted.
- Used alternate super blocks for fixing file system related issues.
- Responsible for Taking Backups.
Environment: RHEL 6, Solaris 9,Solaris 10Sun fire 210,240,440,480/490,880/890,1280,T1000,T2000,T5120,SE M4000/M5000SunFirex4100,4170,x4450.