University of Phoenix

Kent State University

University of Texas

Systems Engineer at Zix

Dallas, Texas, United States

Service Engineer

Instruct graduate and undergraduate statistics, mathematics, computer and e-business related courses, including: Computers and Information Processing, Database Concepts, E-Business, College Mathematics/Algebra, Introduction to Operating Systems, Programming Concepts, Research and Evaluation/Statistics, The Internet: Concepts and Applications, Beginning Programming (C, Java, C++), Intermediate Programming (C, Java, C++) and Web Programming (HTML, XML, JavaScript).

Lead Faculty

Instructor of Karate, Jujitsu, and self-defense classes.  Designed, edited and published the schools' training books, with local customizations, and the instructor's guides to help maintain quality standards in the training of students.

Okinawan Karate Club of Dallas

Instructor

Responsible for the stability and deployment of new websites, with a specific emphasis to the integration with the payment platform.  Systems for customer websites, payment platforms and internal infrastructure are in distributed environments, including private cloud, public cloud and local resources.  SME for a new Zimbra implementation, migrating from Google Apps in under ninety days.  Tasked with grooming junior personnel to take on new tasks and responsibilities.  Primary administrator for three of the seven datacenter operations used by the company.Technologies: CentOS, Ubuntu, MS-Windows Server, MySQL, Galera, Glusterfs, Apache, VMware, Perl, Python, PHP, Zimbra/Zchat, Dovecot, Postfix, AWS, Google Apps, Puppet, XMPP, NextCloud, GitLab, Mantis, Mattersmost, Sophos Email Appliance, Icinga/Nagios

Website Technologies, LLC

Linux Systems Administrator / DevOps Engineer - Infrastructure Lead

Responsible for the stability and deployment of new websites, with a specific emphasis to the integration with the payment platform. Systems for customer websites, payment platforms and internal infrastructure are in distributed environments, including private cloud, public cloud and local resources. SME for a new Zimbra implementation, migrating from Google Apps in under ninety days. Tasked with grooming junior personnel to take on new tasks and responsibilities. Primary administrator for three of the seven datacenter operations used by the company.Technologies: CentOS, Ubuntu, MS-Windows Server, MySQL, Galera, Glusterfs, Apache, VMware, Perl, Python, PHP, Zimbra/Zchat, Dovecot, Postfix, AWS, Google Apps, Puppet, XMPP, NextCloud, GitLab, Mantis, Mattersmost, Sophos Email Appliance, Icinga/Nagios

Verity Recruiting/Website Technologies, LLC

DevOps Engineer

Manager of data transmissions and application support focused on financial billing printing, with partial support for remittance image processing.  Team of seven based in the US, with an off-hours support team of six in Chengdu, India.  Worked with QA to define and implement new production deployment processes to satisfy proper separation of duties between development, QA and production operations.  Developed technical and customer root cause analysis procedures and procedures to release the documents to customers.  Additionally, helped to improve the software and change request processes, including new documentation.  Redesigned the weekly reporting to upper management to include metrics indicating the team’s performance.  The primary technical disaster recovery/business continuity contact, managing two disaster drills per year.As part of the application support on-call rotation, duties included production software releases, technical troubleshooting of the application stack; customer and vendor coordination to resolve operational issues; backup change manager; Linux/UNIX performance tuning; analysis and implementation of a new application deployment, including a fresh ground up installation.Primary technical resource in designing the new FootPrints workspaces for incident management, software release, change management, user access control, problem management, project management.  Supported Technologies: Jenkins, Tomcat, Java, Splunk, Footprints, Solaris, RedHat Linux, Oracle, MS-SQL, IIS, Apache, Activiti, Fuse, Perl, BASH, Windows XP, Window 7, Windows Server 2008, Windows Server 2003, Puppet.

TransCentra

Manager of Production Engineering, Database and Transmissions

Responsible for application deployments and system troubleshooting with respect to application performance or outages.  Linux system tuning and capacity planning.  Proposed and implemented new backup systems.  Assumed responsibility for Puppet, in day-to-day operations.  Configured Linux systems for new application deployments in multisystem/multitenant applications, including Nginx/SSL, Ruby, ActiveMQ, and Mule.  Assisted with monitoring enhancements.  Enhanced deployment procedures to minimize miscommunication problems between development, DevOps and the customer.  Managed hosts in three data centers, both in-house and in colocation facilities  Designed database and application disaster recovery procedures.  Supported virtual machines on VMware 4.0 ESX and EqualLogic SAN.

Numerex Corp.

Sr. Systems Administrator

At Numerex: Responsible for application deployments and system troubleshooting with respect to application performance or outages.  Linux system tuning and capacity planning.  Proposed and implemented new backup systems.  Assumed responsibility for Puppet, in day-to-day operations.  Configured Linux systems for new application deployments in multisystem/multitenant applications, including Nginx/SSL, Ruby, ActiveMQ, and Mule.  Assisted with monitoring enhancements.  Enhanced deployment procedures to minimize miscommunication problems between development, DevOps and the customer.  Managed hosts in three data centers, both in-house and in colocation facilities  Designed database and application disaster recovery procedures.  Supported virtual machines on VMware 4.0 ESX and EqualLogic SAN.

Oxford Global Resources

Westwood College

Adjunct Faculty

IT manager with budgetary authority, including management of IT related service contracts.  Managed the security processes for systems access to conform to HIPAA standards.  Redesigned IT standards with the objective of improving network, systems and security for the facility.  Coordinated lab system installs and upgrades with QA for short and long-term reliability testing.  Managed three part time equivalents.Initial responsibilities included moving the company to a new location.  Responsible for approving power and networking cabling for the new facility.  Specified new network security equipment, including VPN appliances, firewalls, and physical access controls.  Designed new data center, including tracking changes and preparation of new equipment racks and cable management.  Coordinated over-all move activities for IT infrastructure.  Enhancements to new office began with new CRM systems; expansion of SAN; migration of NAS, upgrade of VMWare ESX/ESXi servers and support databases.  Tasks include installation of new servers: both Linux and Windows 2003/2008; migration to Windows 7; NAS upgrades, Disaster Recovery/Business Continuity planning; planning of a new backup system; SOP design and documentation, Vendor management, Customer support.

Corepoint Health

System Administrator

Taught basic physical science and algebra classes in the ultrasound certificate programs.

Sanford Brown Institute

Faculty

Contract Team Lead for IT related projects, such as database deployment, systems redesign, and business continuity.  Deployed Oracle RAC Linux clusters, with redundant SAN and networking to allow fault tolerance in support of Department of Corrections telephony systems, requiring near zero downtime.  Proposed and implemented a prototype Nagios monitoring system to enable internal Systems Administrator to take preemptive action in the event of systems failures.  Also assisted with Zenoss installs, to replace Big Brother in the NOC, and allow better network and overall business management.

Securus Technologies

Senior Systems Administrator

At Securus: Contract Team Lead for IT related projects, such as database deployment, systems redesign, and business continuity.  Deployed Oracle RAC Linux clusters, with redundant SAN and networking to allow fault tolerance in support of Department of Corrections telephony systems, requiring near zero downtime.  Proposed and implemented a prototype Nagios monitoring system to enable internal Systems Administrator to take preemptive action in the event of systems failures.  Also assisted with Zenoss installs, to replace Big Brother in the NOC, and allow better network and overall business management.

Matrix Resources

Project Manager of Linux technical projects.  Redesigned system management procedures and enhanced security for Internet-connected companies.  Designed and implemented a minimally invasive grid computing monitoring system utilizing Nagios and proprietary processes to create a “rapid deploy” environment for large Linux data centers.  Created customized proactive measures to ensure system performance and reliability, including trending reports, out of bound alerts and behavioral profiles.

John Mascio

John Mascio