OBJECTIVE:

Acquire a Linux Systems Administrator position where I can challenge and optimize my eight years of technical experience in installation, configuration and maintenance of Linux/Unix/Windows server based systems and network applications.

SUMMARY:

• Extensive experience in automating deploying OS Images in an enterprise environment
• Eight year of experience delivering infrastructure products and services (server, storage, and networking)
• Expertise with operating systems including Redhat Linux, Microsoft Windows
• Skilled experience with server hardware including HP, Dell, and Confidential
• Expert proficiency within VMware Virtual Center, including new VM creation, modification, and deletion
• Proficient understanding of configuration management tool Puppet
• Experience working with ticketing systems RT and Jira
• Knowledge with SAN and NAS data storage technologies including EMC and NetApp
• Experience with process engineering, and change management in a complex environment
• Technically proficient in server hardware/software, network and storage technologies as stated above
• Excellent customer service support with a 'can - do' attitude
• Ability to execute with discipline and urgency
• Demonstrated impact and influencing skills with high degree of initiative
• Highly Collaborative/Team oriented
• Mentoring and knowledge-sharing skills that will enhance the team's performance
• Flexibility to respond to critical system issues and perform infrastructure updates outside of normal business hours
• Organized with strong attention to detail and time management skill
• Team-oriented approach and ability to work well with partner organizations in a large corporate environment
• Customer-service focus, striving to ensure that the service is not just available but meets business needs now and for the future
• Excellent experience with blade-based server platforms and their design and management tools, such as HP and Dell
• Excellent verbal and written communication skills with experience in direct internal and external customer relationship management
• Ability to learn new and different technologies to a working depth quickly
• 24/7 customer support and service delivery experience

TECHNICAL SKILLS:

Operating System: Red Hat, CentOS, Ubuntu Linux, Windows 2007, Windows 2008, Windows 2012

Network: LAN / TCP/IP / UDP / DNS / HTTP / SSL / DHCP / Routers

Hardware: HP, Dell Servers, Desktops

Languages: Bash Scripting

Application Server:: SSH, SFTP, Apache, Samba, NFS, Nagios

Database: MySQL

Automation: Puppet, Confidential Bigfix, Red Hat Satellite

AWS: EBS, EC2, AMI, VPC, IAM, Route 53, S3 Bucket

PROFESSIONAL EXPERIENCE:

Confidential, New Jersey

Linux Systems Engineer

Responsibilities:

• Installation, Maintenance and troubleshooting of Red Hat, CentOS and Ubuntu Operating systems.
• Provisioning and configuration of servers, post-build monitoring and troubleshooting.
• Deploying Virtual guest machines and use clones, snapshots and templates.
• Experience in Server build using PXEboot and Kickstart on multiple servers.
• Monitoring Virtual environments with ESXi Servers, VCenter and Nagios.
• DNS Management, create and modify entries for domain name resolution.
• Working with Keystone to provision users with proper privileges.
• Troubleshooting of day-to-day system and user issues on various systems.
• Management of disks on Red Hat and CentOS Servers using LVM, creating volumes, file system and resizing volumes.
• Remediating vulnerabilities while applying security polices for hardening the server based on the company policies.
• System performance tuning and validating systems are configured and optimized for maximum functionality and availability.
• Configuration management using Puppet.
• Install, upgrade and manage packages via RPM and YUM package management.
• Worked on decommissioning of servers which reached end of life.
• Documented various administrative tasks using Confluence.

Confidential, NYC

Systems Engineer and Administrator

Responsibilities:

• Engineering of SA-related solutions for various project and operational needs.
• Installing new and rebuilding existing servers which includes infrastructure (NFS, NIS, PXE boot, Kickstart File Servers, Automount, DNS, DHCP).
• Installing of ESXi Hypervisor Servers, VSphere clients and VCenter Servers.
• Administrating of server infrastructure consisting of 2500+ servers. Both physical and virtualized servers running VMware ESXi.
• Using Amazon EC2 features to provision, monitor, scale and distribute compute infrastructure.
• Using Amazon Cloud Watch metrics to monitor the health and utilization of AWS resources.
• Working with route 53 to add DNS hosts.
• Working with IAM to provision users with proper privileges.
• Creating logical volumes with LVM and extending them as needed.
• Deploying Virtual guest machines and use clones, snapshots, and templates.
• Setting up directory shares with NFS servers, and configuring clients as NFS clients, setting up auto mounts for home directories in different domains.
• Performing daily system monitoring, verifying the integrity and availability of all hardware, server resources, systems and key processes, reviewing system and application logs, and verifying completion of scheduled jobs such as backups.
• Troubleshooting and maintaining of TCP/IP, Apache HTTP/S and DNS applications.
• Expert levels Linux (RHEL / CentOS) support experience.
• Presenting/assigning LUNS to ESXi host.
• Health checks for VMs and ESXi hosts.
• Responsible for patch management and managing servers with Redhat Satellite.
• Creating the data stores for storing VMs and data.
• Using Puppet Master to keep in sync configuration on hosts running agents.
• Ensuring backup of all the servers and clients using VERITAS NetBackup software, restoring data in the event of emergency.
• Issues related to login, performance, virus removal, adding machines to domains, granting proper permissions and applying domain group policies domain wide.
• Performing ongoing performance tuning, hardware upgrades, and resource optimization as required, Configuring CPU, memory, and disk partitions as required.
• Interacting with the NOC to make certain systems haven' Confidential been penetrated.
• Creating/modifying host-based firewall rules using IPTABLES.
• Scanning Vulnerable hosts on the subnets and fixing vulnerabilities resulting in improved and secure networks using McAfee Found Stone.
• Monitor the availability and health of the infrastructure and applications across multiple data centers. (Systems resources: disk space, memory, CPU load)
• Monitoring server and network infrastructure using Nagios.

Confidential, New Jersey

Responsibilities:

• Being part of the build team, performing system installs on daily basis.
• Performing channel bonds for redundancy and performance.
• Setting up IDrac and ILO IP addresses to Dell and HP.
• Setting RAID levels on Dell, Confidential and HP systems.
• Securing Linux systems by going over the quality check list provided by the security team.
• Providing direct user support through ticketing systems.
• Installing custom apps on systems following directions.
• Performing local and centralized user management.
• Patching systems using Red Hat Satellite.
• Replacing system parts such as RAM, HDD, NIC, HBAs etc.
• Working with vendors to order new hardware.
• Monitoring system health and responding to alerts.
• Creating VMs and loading OS on them.
• Cloning VM machines.
• Resolving Level 1 and Level 2 issues on Linux systems.