Lead UNIX/Linux, Windows, and Infrastructure Engineer for a rapidly growing and evolving SaaS company. Responsible for leading technical infrastructure design while providing technical mentoring, direction, and training for the team.- Led all production hardware design, configuration, and purchases.- Met all budgetary and scaling requirements during a period of hyper growth. - Designed and led deployment of fully redundant storage system for file attachments, significantly increasing performance and redundancy.- Tested various storage vendors and led deployment/migration of our core back-end database SAN, lowering both cost and footprint while increasing performance.- Implemented a rapid DR solution for our back-end database SAN.- Provided last level support during high-pressure technical issues for our production environment.- Provided technical support and direction to fellow team members.

Part of a team monitoring, maintaining, and improving a 24x7 high availability SaaS site.- Provided 24x7 oncall support for the Bullhorn SaaS application consisting of IIS, Apache, JRUN, JBOSS, HornetQ, Redis, and email services. - Completed infrastructure buildout in London providing a lower latency application for European users.- Spec'd hardware purchases for rapid growth and expansion.- Implemented Puppet for config and code standardization including custom modules for Bullhorn specific containers. - Maintained Amazon (AWS) infrastructure for Bullhorn Reach. - Upgraded Database infrastructure from Windows 2008 to Windows 2012.- Designed and installed a highly scalable solution for recent company acquisitions. - Installed and maintained SAN storage solutions including Dell Equallogic and Nexsan.- Converted Windows DNS servers to Linux Bind for internal DNS resolution.- Migrated a significant portion of infrastructure from Windows to CentOS linux.- Worked on a major data-center consolidation project improving future scalability.- Converted numerous VMware ESXi based virtual machines into Linux KVM.- Rebuilt Windows based application servers creating a standard image used across production. - Maintained and installed Hardware.- Maintained Nagios configurations for monitoring server health.

- Enterprise Domain Administrator.- Monitored and maintained over one hundred physical servers located within the USA and China.- Built and managed a VMware ESX cluster consisting of over two hundred virtual machines.- Troubleshot hardware and software related issues.- Managed Active Directory and Group Policies.- Managed tapes and backups of critical systems.- Configured and maintained a polycom video conferencing system used to connect employees within the USA, and our clients in China.- Trained employees on how to use the polycom video conferencing system.- Configured server and application monitoring through Solarwinds to maintain system reliability.- Designed and implemented a Disaster Recovery plan which was successful during testing.- Designed an internal web portal for employees to easily locate training documentation and application links.- Worked with vendors to determine suitable hardware and software purchases.- Completed documentation on various applications, policies, and procedures.

- Provided hardware and software support for the northeast region and theChina AP1000 project. - Resolved various network related issues during the deployment of new satelliteoffices. - Made budget related decisions on the purchasing of hardware and software.- Provided helpdesk support for various engineering applications.- Configured blade servers that were designated for new project related tasks.- Resolved Tier 1 printer, file, and exchange server issues. - Documented solutions for knowledge based materials.- Recorded inventory for asset management.