SUMMARY

I am an IT professional with more than 22 years of experience with Linux System Administration, Linux System Engineering, DevOps Engineering, Systems Security, Backup and Recovery, System Maintenance, Cloud Computing, and Networking for Military Communications and Corporate Information Systems. I am a technical expert in Linux Systems Administration, DevOps Engineering Fault Isolation, Virtual Technologies, and Network Security. I have served in various positions charged with determining System Security constraints using such tools as Imperva, QRadar, Snort, IPTables, Dansguardian, and System Monitoring Tools. I am proficient with Cloud Computing, Networking, SAN Storage, Identifying critical systems, and determining system acquisition sources. I have extensive experienced in Development Support, Performance Tuning, Clustering, Patch Management, and System Level Configuration management with demonstrated experience in the management, control, and integration of software changes for multiple client server - based computers and cloud services while sustaining software baseline integrity and upgrading software quality assurance. I am knowledgeable in Information Systems and Information Technologies (IS/ITS) and have in-depth experience as an Information Systems Security analyst, Linux Systems Administration, Software Development Tools, LAN’s, WAN’s, and an ability to master evolving Information Technologies. I have held positions as a Team Lead and demonstrated strong leadership capabilities while keeping the companies best interests at the forefront. I work well in a team environment and am also able to be left alone to accomplish tasks with minimal management involvement.

TECHNICAL SKILLS

• Linux Systems Administration/Engineering
• Kernel and Performance Tuning
• RedHat
• CentOS
• Ubuntu
• Openstack
• VMWare
• AWS
• AZURE
• VirtualBox
• Jenkins
• GitHub
• HAProxy
• Zabbix
• Ansible
• Capistrano
• Maven
• Splunk
• Docker
• App Dynamics
• MySQL
• Postgres
• MongoDB
• SqlDeveloper
• Apache
• Tomcat
• JBoss
• Hazelcast
• ZooKeeper
• Integrating Information Systems
• LDAP
• SAMBA
• NFS
• Single Signon
• Clustering
• LAN/WAN Communications
• TCP/IP Networking
• Network Security Systems Administration
• IPTables
• Firewalls
• Microsoft Applications
• Office
• IIS
• Active Directory
• NetApp Administration
• Cisco UCS Administration

PROFESSIONAL EXPERIENCE

Application Support Engineer/DevOps Engineer

Confidential

Responsibilities:

• Deployed and Maintained new VM's in openstack and azure cloud for application support expansions.
• Built/Configured HAProxy servers to route traffic to systems and distribute load .
• Installed/Configured Tomcat on new systems to run java applications.
• Developed deployment scripts for quick roll out of Application Sprints using Ansible playbooks with Rundeck and Capistrano.
• Installed/Maintained a zookeeper cluster for the development team to distribute cross-node synchronization for their applications.
• Performed system tuning on all Linux Systems to increase performance of Java Applications.
• Installed/Configured new Jenkins systems for Application development and installed needed plugins.
• Maintained our Maven repository for Application Project Management.
• Maintained and created git repositories for the Developers to maintain code releases.
• Installed/Configured Zabbix Monitoring hosts for realtime alerting and trend analysis.
• Created bash scripts to automate system tasks and control system processes across multiple hosts.
• Actively participated in the design and implementation of new systems in our Openstack Env.
• Installed Splunk Forwarders to all new systems and configured hosts to use specific sourcetypes.
• Performed third level support for all Linux Systems.
• Configured and managed IPTables Firewall for strict security and created Openstack Security Groups to be compliant with Comcasts Security Policies.
• Installed/Configured all new Open Source Apps and reasearched the use of new tools to support the development team.
• Perfomed User Administration for all systems and applications providing access and defining roles for new stake holders.
• Gave oversight into capacity planning and future strategy for new customer provisioning.
• Oversaw maintenance of file systems, created a schedule for periodic processes, monitored and reported on resource usage, maintained communication with users regarding Application support and System Performance, and made management aware of possible bottle necks and single points of failure.

Linux System Engineer/DevOps Engineer

Confidential

Responsibilities:

• Created Virtual Templates for quick deployment of distributed systems for Medecision .
• Architected the backup strategy using Networker for daily backups and Storix for bare metal backups .
• Architected the VMWare Cloud using Cisco UCS blade technology with a NetApp backend, VMWare ESX 5.0, and Cisco Nexus 1010V fiber interconnect switches at Siemens.
• Performed system tuning on all Solaris/Linux/AIX machines for both Siemens and Medecision.
• Maintained monthly updates for all Linux systems and performed firmware updates on a quarterly schedule at Medecision.
• Performed quarterly security checks on all Linux systems and remediated any open vulnerabilities at Medecision.
• Maintained a complex in-house process that included bash and java scripts and moved files between systems and loaded PHI data into the databases for Medecision.
• Configured Apache Web Servers to include modules and virtual hosts i.e. php mod and ssl mod as Siemens.
• Created bash scripts to automate system tasks and to auto provision LDAP authentication to the Apache Webservers and create the virtual hosts for both Medecision and Siemens
• Actively participated in the design and implementation of new systems at Medecisions’ Rackspace Data Center and actively moved VM images from Azure Cloud to Rackspace for deployment.
• Installed Splunk Forwarders to all new systems and maintained the splunk master servers for Medecision.
• Actively participated in our quarterly DR tests and created the DR strategy and scripts used in recovery for both Siemens and Medecision.
• Performed third level support for all Solaris/Linux Systems for both Siemens and Medecision.
• Configured and managed implementations of Samba, PHP projects, Apache Web Server, DNS, LDAP, Kickstart, IPTables Firewall, NFS, NIS, SSH, MYSQL\PostgreSQL, Open Source Apps, and User Administration for all Solaris/Linux/AIX. Some tasks were completed manually and some were bash scripted to streamline processes for both Siemens and Medecision.
• Gave oversight into capacity planning and future strategy for new customer provisioning for both Medecision and Siemens.
• Oversaw maintenance of file systems, created a schedule for periodic processes, monitored and reported on resource usage, maintained communication with users regarding Linux systems, and made management aware of training requirements for both Medecision and Siemens.

Linux/VMWare Systems Administrator

Confidential

Responsibilities:

• Configured all Linux systems to authenticate to Windows Active Directory using Centrify .
• Configured our Network to integrate Windows systems with Linux systems including SAMBA sharing, Print servers, and Router configurations.
• Implemented our VMWare Cloud using Cisco UCS blade technology with a NetApp backend, VMWare ESX 5.0, and Cisco Nexus 1010V fiber interconnect switches. Cisco named this technology their FlexPod package.
• Implemented all our Security Tools to include Imperva, QRadar SEIM, Tripwire, and Trustware.
• Maintained monthly updates for all Windows and Linux systems and performed firmware updates on a quarterly schedule.
• Migrated all Physical Servers to the Cloud using PlateSpin Migrate and VMWare Converter.
• Actively participated in the design and implementation of an Active Directory migration to consolidate our three domains into one goevo domain.
• Upgraded our Exchange 2003 environment to Exchange 2010.
• Migrated our backup software from a CA ArchServe environment to a SyncSort Block Level backup software.
• Upgraded our current T1 internet connections to two 10 MB circuits with redundancy.
• Actively participated in our annual DR tests.
• Oversaw maintenance of file systems, created a schedule for periodic processes, monitored and reported on resource usage, maintained communication with users regarding Linux/Windows systems, and made management aware of training requirements.

Linux Systems Administrator,

Confidential

Responsibilities:

• Configure all Linux systems to authenticate to Windows Active Directory using Kerberos and LDAP.
• Configured our Network to integrate Windows systems with Linux systems including SAMBA sharing, Print servers, and Router configurations.
• Install/Configure VMware ESX 3.5 environment with a NetApp Backend.
• Configure and manage implementation of Samba, PHP projects, Apache Web Server, DNS, LDAP, Kickstart, IPTables Firewall, NFS, NIS, SSH, MYSQL\PostgreSQL, Open Source Apps, and User Administration.
• Implemented Active Directory for user and computer management and created group policies.
• Configured Windows DFS to manage all shares.
• Installed and configured DNS.
• Responsible for all Linux and Windows systems backups using Backup Exec.
• Administer and maintain all servers running Linux/Windows to maintain a 24x7 uptime environment.  
• Oversaw maintenance of file systems, created a schedule for periodic processes, monitored and reported on resource usage, maintained communication with users regarding Linux/Windows systems, and made management aware of training requirements.
• Implemented an instant messaging solution using Openfire and Psi. 
• Responsible for securing all Solaris/ Linux servers using IPTables, SSH, Syslog, and Logwatch.
• Configured Kickstar/Jumpstart to streamline all Solaris/ Linux installations.

Sun Solaris/Linux System Administrator,

Confidential

Responsibilities:

• Make sure daily TSM backups of all Solaris/Linux Systems complete without error and all new systems are configured with TSM Client Software.
• Perform System Tuning for all Oracle and Engineering Servers running Solaris 8, 9, and 10.
• Configure all Solaris/Linux servers to authenticate to Windows Active Directory using Kerberos and LDAP.
• Install/Configure VERITAS Volume Manager and Solaris 10 ZFS using disks allocated from IBM SAN.
• Perform limited database administration (DBA) tasks, ensure proper backup of Sun Solaris data, and system documentation are kept current.
• Configure and manage implementation of Samba, PHP projects, Apache Web Server, DNS, LDAP, Kickstart, IPChains/IPTables Firewall, NFS, NIS, SSH, MYSQL\PostgreSQL, Open Source Apps, and User Administration.
• Connect/Install hardware needed for SAN Disks on all Solaris/Linux Oracle Servers.
• Participate in yearly Sunguard DR test.
• Monitor system backups and restore files as needed
• Perform fault isolation for all Sun/Linux systems to prevent re-occurrences of problematic processes.
• Install/Configure new Linux servers running RedHat AS 3.0.
• Maintain and Deploy Sun Solaris systems to provide optimum functionality for daily operations.
• Perform maintenance of file systems, create cron jobs for periodic processes, monitor and report on resource usage, maintain communication with users regarding Sun Solaris systems, and make management aware of training requirements.
• Configure and maintain WU-FTP, Squid, Apache, DNS, NIS, NFS, and Sendmail.
• Administer Samba to authenticate to Active Directory so all users have access to their home directories on Windows Clients.
• Administer Solstice DiskSuite to Add/Delete storage for all Sun Systems.
• Perform limited database administration (DBA) tasks, ensure proper backup of Sun Solaris data, and system documentation was kept current.

Solaris/Linux System Administrator,

Confidential

Responsibilities:

• Make sure daily “VERITAS” backups of all Solaris/Linux Systems complete without error and all new systems are configured with VERITAS Net-Backup Client Software.
• Designed and implemented an auto e-mail sorting tool on a RedHat 8.0 Linux server using fetchmail, procmail, and custom designed bash scripts, which took a total of 8 hours of manpower off of the “Network Abuse Identification” process. 
• Administer and maintain all servers running Solaris/Linux 7 - 8 and Red Hat Linux to maintain a 24x7 uptime environment.  
• Jumpstart/Kickstart all new servers scheduled for PPT (Pre Production Lab) and configure them accordingly.
• Troubleshoot all issues in PPT and ensure immediate and accurate response to all trouble tickets affecting testing and system uptime.
• Monitor PPT network and ensure all devices are functioning.
• Perform fault isolation to prevent issues from reoccurring.

Linux Systems Administrator,

Confidential

Responsibilities:

• Monitor system backups and restore files as needed
• Perform fault isolation for all Sun/Linux systems to prevent re-occurrences of problematic processes.
• Install/Configure new Linux servers running RedHat AS 3.0.
• Maintain and Deploy Sun Solaris systems to provide optimum functionality for daily operations.
• Perform maintenance of file systems, create cron jobs for periodic processes, monitor and report on resource usage, maintain communication with users regarding Sun Solaris systems, and make management aware of training requirements.
• Configure and maintain WU-FTP, Squid, Apache, DNS, NIS, NFS, and Sendmail.
• Administer Samba to authenticate to Active Directory so all users have access to their home directories on Windows Clients.
• Provided advanced technical Linux support for customers of Confidential Inc.
• Assisted with the configuration and management of Samba, PHP projects, Apache Web Server, DNS, LDAP, Kickstart, IPChains/IPTables firewall, SSH, MYSQL\PostgreSQL, and User Administration.
• Maintained System Security and ensured systems are up to date with current patches and backups/restores were completed without flaw.
• Configured client networks to integrate Windows systems with Linux systems including SAMBA sharing, Print servers, and Router configurations.
• Oversaw and maintained the daily operation of All Solaris/Linux hardware and system software, as well as Oracle database and applications software.
• Maintained all Solaris/Linux systems to provide optimum functionality for daily operations.
• Coordinated and/or undertook in troubleshooting of Solaris/Linux systems hardware, software, Network hardware, and resolution of related user problems. 
• Configured and Maintained CISCO routers, Local Director, and Jumpstart servers.
• Assisted in the management of a Solaris/Linux environment and participated very actively in the selection, design and purchase of new hardware and software, installation of new Solaris/Linux hardware/software.
• Oversaw maintenance of file systems, created a schedule for periodic processes, monitored and reported on resource usage, maintained communication with users regarding Solaris/Linux systems, and made management aware of training requirements.

Network Security Analyst,

Confidential

Responsibilities:

• Monitored a Solaris/Linux/HP-UX enterprise network for network intrusions and malicious logic attacks
• Performed threat assessments, and coordinated network and Information System Security countermeasure.  
• Assisted with the identification and dissemination of preferred enterprise Solaris/Linux Security Tools (Tripwire, TCP Wrappers, Firewalls, Proxy Servers, Anti-virus Software, physical-layer/network-layer/application-layer encryption applications).
• Assisted with complex total military Solaris/Linux systems network (security) engineering and planning.
• Configured Network Intrusion Detection Tools for Solaris/Linux Systems and Recommended network security configurations for Solaris/Linux Systems, and architectural design considerations. 
• Performed System Administration, backup and recovery, and troubleshooting for 10 Sun SPARC Ultra servers running Solaris/Linux.