SUMMARY

• IT Infrastructure Professional with over 8 years of experience in the areas of Unix System Administration in Redhat Linux and Sun Solaris servers.
• I’m also very comfortable with most aspects of UNIX operating system across multiple flavors and an enthusiastic learner.

TECHNICAL SKILLS

Other: X86/X64 architecture, Sun Netra servers, Solaris 8, 9, 10 RHEL 5 and 6, Red Hat on Z Series, Hypervisor, Windows XP, 2003 and 2008, Microsoft outlook, SVM, VERITAS Volume Manager, Brocade 3900, 4100, 5300 and DCX, Sunfire V240, V490, V880, E15K, E25K, Sun Sparc E2K, Sunsparc M4000, M8000 and M9000, Logical Volume Management, Remedy IT Service Management, KVM, VirtualBox, SELinux, Iptables.

PROFESSIONAL EXPERIENCE

Confidential, WASHINGTON DC

UNIX SYSTEM ENGINEER

Responsibilities:

• Monitoring Production Servers and Apps using BigBrother & Spectrum
• Configured different Application Server startup Script
• Performed different Corrective action to resolve applications and server issues
• Configured and Installed different apps specific to my environment
• Apply Kernel, Security, Bug Fix, and Enhancement Update (kernel) RHEL - Production & Development; Oracle Java JRockit Production Patch; Performed software upgrades and OS patching for Redhat 5 & 6, Centos 6 and Solaris 9 & 10
• Configured RH scalable File system packages
• Update the SSL certificate in a Production Environment
• WebLogic CPU Patch - Oracle WebLogic Server 10.3.6.0.7 PSU Patch
• Helped Developers isolate and Resolve Application issues that are OS or Hardware Based
• Remote Access Management
• Disk Quotas Evaluation and System Performance Monitoring and Tuning
• Upgraded & Configured Multiple Applications
• Enabling Remote configuration Channel Management tool on Redhat Servers
• KVM based Virtualization.
• OHS Project Splitting & Hardening on Web Servers
• Adding Entries to Host files to Resolve Redundancy and Traffic load Issue
• Training New Admins to Adapt to the Environment
• Using Redhat Satellite Server to Manage Patching, Scheduling Jobs and other Admin Tasks in a Production and Development/Stage Environment
• Created and Provisioned EC2 instances in AWS
• Configured an LDAP client to Authenticate using Certificate
• Used VMware ESX to provision and configure Virtual Machines
• Synchronize Time Using NTP
• Resolve IronPort Failed Message(s) and Spawning Application Issues
• Deployed various applications in Production and Development Servers
• Configured & Secured Apache to Host Multiple Websites
• Network Connection Troubleshooting
• Configured an SMTP/Postfix Mail server and Enabled Host to receive Remote Mails
• Configured and Created a Samba Access Share
• Responded to and closed out ITSM tickets in a timely Manner
• Add Cookie Output to OHS access Logs
• Provide Migration Support in regards to Redhat & Solaris as we transitioned Data Centers
• Netbackup Upgrade
• NFS/CIFS Filesystem mounting and support
• Used Cron to Manage the Syncing of Routine Jobs and Apps
• Installed and Configured NetIQ on Specified Redhat & Solaris Servers
• VirtualBox VM setup
• Logical volume management
• CPU & Disk space Utilization Management
• Red Hat Virtualization Management
• Hardware documentation and policy
• Configured Systems to Boot into a Specific Runlevel Automatically
• Role-Based Access Control management

Confidential, Fairfax VA

UNIX Systems Administrator

Responsibilities:

• Installed Red Hat Enterprise Linux 5/6 and Oracle Solaris 9&10; Centos 6
• Patching and Kernel Updates
• Troubleshoot and Resolved TCP/IP Networking Issues and Setup and Managed Server Networking
• Imported an ISCSI Disk
• Configured SELinux; list and Identify File and Process Context; Diagnose and Address Routine SELinux Policy Violation & Designed and Addressed Routine SELinux Policy violations
• User Accounts Administration and Management
• Monitored and Controlled System Processes
• Monitored and Managed Server Performance Using Associated Tools
• Creating a RAID Array
• Administered Logs to Detect System Errors
• Created Swap space and use of Fdisk to Invoke a Partition
• Created and Configured LUKS-Encrypted Partition
• System Logging, Monitoring, and Automation
• Managing Password Policies
• DNS Troubleshooting
• Deactivated Direct SSH Root login on Servers
• Security Hardening on Dedicated Servers
• SSH keys for Secured Password less SSH Communication between Servers
• Creation of Repo
• Documented Server Baseline and Procedure
• File System Security & Troubleshooting
• General Troubleshooting and Root Cause Analysis

Confidential, Columbia MD

UNIX Administrator

• Installed Solaris 9 on sun enterprise 2900 server, V880 and E2900, V210, V240, V440, V490, V880, 1280 & HP ProliantDL-320/360/380/560/580 Servers also, installed Redhat Enterprise Linux 5.3 and Redhat Enterprise Linux 4 server on Dell 2950 servers
• Performed Solaris and Redhat Linux Kernel Tuning
• Performed user account creation, deletion, and configuration; Hardware troubleshooting
• Performance Monitoring
• Troubleshoot various TCP/IP Issues & Tracked and fixed problems using system logs
• Cron job Setup and Support
• Creating, Mounting and Umounting File Systems
• User, Group Administration and Advanced File Permissions
• Provide support to Application Development/Support Teams Integrating Applications into Linux OS
• Excellent Written and Verbal Communication Skills, Inter-Personal Skills and Self Learning Attitude
• Interacted with System Managers on Project Requirements and Development
• Continues Hands on Approach to Daily Systems Management
• Interacted with Application Administrators and Developers for System Troubleshooting
• Work under General Direction from Direct Management. Establish/Recommend Policies on System use and Services.