Linux Administrator Resume
SUMMARY:
I am a self - motivated professional with more than 7 years of Red Hat Linux experience providing through and skillful support to both internal and external parties. I am highly skilled in following through, communicating and meeting deadlines to ensure on time completion of projects. Ability to learn and incorporate new technology. Consistently receives positive feedback from managers, co-workers and clients.
TECHNICAL SKILLS:
Languages: Shells scripting (bash), basic python, salt stack
Cloud Services: Amazon Web Services (AWS), TerrackMark.
OS: RHEL 6, Centos 6, RHEL 7, Basic windows servers 2012
Software: Atlassian Jira, Atlassian Confluence, Atlassian Bamboo, MySQL, Github, Red Hat Satellite, OpenStack
Monitor Software: SolarWinds, Appdynamics, Splunk
Automation: Ansible, Ansible Tower, bash, basic python, Tanium
PROFESSIONAL EXPERIENCE:
Confidential
Linux Administrator
Responsibilities:
- Migrated Solaris based applications to AWS Linux platform.
- Led time critical project for application migration from offsite vendor to doj internet network.
- Automate Linux patching with ansible playbooks and add-hoc commands
- Installed and configured windows active directory including group, group policy, share drives to authenticated users.
- Configuration and administration of AWS services (EC2, S3,EBS, VPC, Security Groups,, NAT, AMI, IAM.
- Installation and configuration of Linux/Unix Servers using Kickstart, PXE, flash archive, live upgrade, jumpstart and Ansible
- Administered, troubleshot and monitored UNIX (Solaris) systems.
- Administer and troubleshoot RSA token for both internal and external parties
- Participated in monthly maintenance patching of Linux and Unix servers
- Write playbooks for PIV authentication, AWS instances provisioning, and day to day Linux tasks.
- Installed and configured Red Hat Satellite repositories in preparation of Red Hat 7 migration
- Automated some basic tasks using shell scripting.
- Configured DNS servers for local name resolution in test environment
- Implement SpaceWalk repository.
Confidential
Technical Consultant
Responsibilities:
- Configuration and administration of AWS services (EC2, S3, RDS, EBS, VPC, Security Groups, ELB, Snapshots, Route53, Cloud Watch, CloudFront, NAT, AMI, IAM, Glacier, SQS, SNS, MySQL, CloudTrail
- Administration of SA-related solutions for various project and operational needs
- Install and upgrade new / rebuild existing servers and configure virtual infrastructure, services, settings, directories, storage, etc. in accordance with Federal standards and project/operational requirements
- Contribute to and maintain system standards
- Research and recommend innovative, and where possible, basic automated approaches for system administration tasks. Identify approaches that leverage resources and provide economies of scale
- Perform daily system and security monitoring to identify any possible intrusions
- Provide Tier II or other support per request from various constituencies. Investigate and troubleshoot issues
- Perform daily system and security monitoring to identify any possible intrusions
- Repair and recover from system or application failures
- Maintain operational, configuration, or other procedures
- Perform periodic performance reporting to support capacity planning
- Participate in on-call rotation to oversee upgrades and ensure uptime of all services
- Develop and maintain installation and configuration procedures
Confidential
Linux Systems Administrator
Responsibilities:
- Daily Administration and Management of Multiple Red Hat Enterprise Linux servers
- Perform large scale configuration and installation of Red hat instances using kick start
- Automation of system administration tasks using shell scripting
- Perform bare metal installation and configuration of VMware Hypervisor on 64-bit servers
- Planning, development and Implementation of hard ware requirements to support a broad
- Experience configuring Iptables/Firewall, Selinux,based
- Created and configure LVM partitions
- virtualization infrastructure using VMware and Red hat tested technologies
- Physical hardware troubleshooting experience
- Red Hat Network (RHN)
- Ability to enable virtualization and verify critical flags required for Cloud based operations
- Performed installation and management of 300 virtual machines on VMware ESXi
- Experience in Enterprise Virtualization and Cloud Computing
- Expertise in Solaris virtual environments
- Installed multiple sparse and whole root zones within one physical instance of Solaris 10
- Performance Monitoring and capacity planning
- Setup ZFS quotas, reservation and automatic NFS-share of directories
- Used SMF system utilities
- Create and manage user accounts. Setting password aging and account expiration. Troubleshoot user account issues and network related connectivity issues
- Install and provision new servers to the network using non-interactive kickstart and, jumpstart, flash archive and live upgrade installation
- Troubleshoot system boot issues using rescue environment and single user mode
- Configured networking in both solaris and linux, including network bonding and IPMP
- Setup central log server for remote logging. Monitored system log files
- Perform system monitoring; cpu, memory, I/O, hardware, jobs scheduling and processes management
- Creating new partitions, including raid partitions, logical volumes, zfs file systems for running systems nondestructively
- Performed package management for system upgrades and updates using yum and rpm
- Build local yum repository for internal network use
- Create and extend physical volumes, volume groups. Resize existing logical volumes for additional space requirements. Setup user account quotas for system resource management
- Restrict access to files and directories using Access Control Lists file permissions. Set suid, sgid and stickets on files as needed
- Configured firewall using iptables for system security
- Configure directories to enable group collaboration and private/public sharing
- Configure NFS servers for file sharing across the network
- Setup NTP servers for time synchronization of multiple clients on the network
- Configure SSH server for password less login, secure ssh logins and restrict ssh logins to local network using iptables
- Perform patching on running servers using live upgrade, yum update, reducing minimal downtime
- Manage and troubleshoot user account issues login issues
- Troubleshoot network connectivity, hardware, cpu, memory, I/O, boot, DNS and other application issues
- Installed and configured DNS for internal name resolution.Daily Administration and Management of Multiple Red Hat Enterprise Linux servers
- Perform large scale configuration and installation of Red hat instances using kick start
- Automation of system administration tasks using shell scripting
- Perform bare metal installation and configuration of VMware Hypervisor on 64-bit servers
- Planning, development and Implementation of hard ware requirements to support a broad based virtualization infrastructure using VMware and Red hat tested technologies
- Physical hardware troubleshooting experience
- Ability to enable virtualization and verify critical flags required for Cloud based operations
- Performed installation and management of 300 virtual machines on VMware ESXi
- Experience in Enterprise Virtualization and Cloud Computing
- Expertise in Solaris virtual environments
- Installed multiple sparse and whole root zones within one physical instance of Solaris 10
- Performance Monitoring and capacity planning
- Setup ZFS quotas, reservation and automatic NFS-share of directories
- Used SMF system utilities
Confidential
Senior Linux Systems Administrator
Responsibilities:
- Managing of Red Hat Enterprise Linux 5 servers
- Daily Administration of Oracle Solaris 10 servers
- Deployment and configuration of Apache Web server on Linux and UNIX machines
- Performed Jumpstart installations and Live upgrades on Oracle Solaris servers
- Installation of Virtual Interfaces In Solaris
- Enforced Security Administration on Linux systems
- Installed and configured VERITAS volume manager
- Implemented RAID 0-5 solutions with VERITAS Volume Manager
Confidential
Computer Systems Analyst
Responsibilities:
- Performed Operating System upgrades
- Configuration and troubleshooting of mobile devices
- Familiarity with network systems such as servers, switches, firewalls and routers
- Knowledge of Internet and networking infrastructure design
- Troubleshoot desktop applications issues while maintaining excellent customer service
- Updated and documented Helpdesk tickets with Remedy ticket system
- Performed Computer Systems Repairs and services
- Performed telephone systems repairs and servicing
- Resolving software and hardware issues
- Administer Sun Solaris 10 O.E
- Repair Sun and Sparc Platforms
- Maintaining Local area networks
- Setup computers and printers on the network
- Monitoring TCP/IP network environment
- Experience with Internet technologies including TCP/IP and HTTP
- Hardware and software inventory
- Scheduling backup of files
- Virus Protection Software Installation