SUMMARY:

• An experienced system administrator seeking to contribute to and work collaboratively with all stakeholders to improve the stability and performance of all systems to accomplish the organization’s mission and goals.
• Consummate team player with good management, analytical, communication. and interpersonal skills.
• Consistently receive positive performance appraisals from managers, co - workers and clients.

TECHNICAL SKILLS:

• NFS, FTP, SSH, DNS, Apache HTTP Server, NTP, LVM, iptables firewall, Cron, Putty, SSH, WinSCP, HP Quality Center, Remedy, MS Office

PROFESSIONAL EXPERIENCE:

Confidential, Silver Spring, MD

Linux Administrator

Responsibilities:

• Supports user management, creates user and group accounts, profiles, configure appropriate access for users and groups, and manage quotas
• Creates, change, and deletes user accounts per request as necessary.
• Maintains appropriate file and system security, monitoring, and controlling system access, changing permissions, ownership of files and directories, maintaining passwords, assigning special privileges to selected users, and controlling file access.
• Experience in Performance Monitoring & Tuning
• Assists in ongoing system performance, system application tuning, hardware upgrades, and resource optimization as required.
• Configure CPU, memory, and disk partitions as required.
• Installs, upgrades and manages packages via RPM and YUM package management
• Maintains proper version of all software elements, including bug fixes and security patches
• Works with system, network, security, and storage engineering teams to prepare and configure new servers for the environment.
• Administers and configures Logical Volume Manager which involve creating and modifying file systems, Logical Volume, Physical Volume, Volume Groups and Resizing
• Manages systems routine backup, scheduling jobs and enabling cron jobs
• Performs daily system monitoring, verifying the integrity and availability of all hardware, server resources, system processes, viewing system and application logs and verifying completion of scheduled jobs
• Performs firewall management using both GUI and CLI to setup firewalls
• Configure and administers NFS, LDAP, HTTPD, and DNS on linux server environment
• Installs, configures, and supports Apache on Linux production servers.
• Installs, configures, maintains and administer Linux system using Confidential and interactive installation on many servers and applying security polices for hardening the server based on the company’s policies
• Performs hardening of the operating systems per security configuration standards, and provides ongoing technical support for patching, upgrades, and trouble-shooting operating system issues both in non-production and production environments.
• Installs and configures Linux instances in Amazon Web Services using sound knowledge of Amazon AWS (EC2, S3, ELB, VPC, IAM, Route53, ElastiCache, CloudFront
• Installs and maintains Jira and Confluence systems in a Linux environment
• Configures, maintains and upgrades Atlassian JIRA and Confluence
• Work with customers to design and configure the Jira and Confluence applications (e.g. projects, workflows, screens, fields, permissions)
• Assists in developing strategic technical documentation and written communication relative to IT issues and procedures
• Works as part of a team that provides 24/7 support

Confidential, Silver Spring, MD

Linux Admin Support

Responsibilities:

• Installed, configured, and administered Confidential Servers
• Implementing file sharing on the network by configuring NFS on the system to share essential resources.
• Performed configuration and troubleshooting of services like NFS, DHCP, FTP, LDAP, Web servers, Apache server.
• Administrated DHCP, DNS, and NFS services in Linux
• Extensive experience in User Administration with creating users, groups, and giving permissions Created and maintained user accounts, profiles, security rights, disk space and process monitoring, e.g. reset password and unlock locked user account
• Performed day-to-day troubleshooting of issues with various servers on different platforms
• Administered file system backups and restores using local archiving utilities to include tar, gzip
• Administrative tasks like cleaning of system log files, var files, removing temp files, checking file systems, scheduling jobs and creation of user accounts.

Confidential, Mclean, VA

Linux Administrator

Responsibilities:

• Created User and group accounts
• Monitored system resources, logs, disk usage, scheduled backups and restorations.
• Set up Quotas for the user accounts & limiting the disk space usage
• Worked closely with database administration staff to ensure optimal performance of databases, and maintain development applications and databases.
• Managed file systems using fdisk and LVM
• Performed software package installation, upgrades and updates using yum and rpm commands

Confidential, Washington, DC

Linux Support

Responsibilities:

• Created and managed approved user accounts and groups
• Maintained user-based security via password aging
• Created Logical Volumes (LVM) for Linux operating system.
• Installed, upgraded and managed packages via RPM and YUM package management
• Installed, configured and supported Apache on Linux production servers.
• Managed routine system backup, scheduled jobs and enabled cron jobs
• Performed troubleshooting and resolved networking issues

Confidential, Rockville, MD

Help Desk

Responsibilities:

• Created and managed user accounts, security, rights, disk space and process monitoring in Linux
• Performed functions such as, addition of user, moves, deletions, backups, restorations and preventive maintenance
• Provided technical support to users and assisted them in defining and solving computing problems
• Performed troubleshooting of network issues and responded to problems
• Assisted in preparing documentation of supported products for users.
• Assisted in preparing user training materials and conducted training sessions as assigned
• Installed upgrades and configured personal computers and peripherals including modems, printers, disk drives, memory and other system boards, keyboards, and monitors
• Responded to trouble calls, analyzed problems with software and hardware and took appropriate actions to correct problems