Matthew Dehait
101 W. Seminole Dr. Phoenix, Arizona 85023 602.989.3739 mtdehait@gmail.com
Experience Sr. Security/Virtualization Engineer
5/2004 9/2010 Net Fusion Services, Phoenix, AZ Virtualization Designed, implemented, upgraded, and supported numerous VMware vSphere, ESX, ESXi, and Microsoft Hyper-V installations. Performed numerous migrations between versions and physical to virtual (P2V) conversions. Recommended, evaluated, and installed virtual server host hardware and virtual backup products such as Veeam Backup, Vizioncore vRanger, and Symantec Backup Exec. Configured Cisco and Juniper switches to support VMware environments. Storage Recommended, installed, configured SAN and NAS storage systems over iSCSI and Fiber-Channel connections. Worked extensively with HP, Lefthand, EMC, Sun, Data Domain, and Dell SANs and data deduplication appliances. Security Implemented security on the networks perimeter using ACLs to implement a DMZ to protect the companys web and mail servers. Established SSL SMTP mail on the mail server and implemented authentication for sending mail. Implemented POP and SMTP proxies through a 3rd party spam and virus filtering service to further protect the companys messaging infrastructure. Performed security evaluations and penetration tests to verify security measures.
Sr. Infrastructure/Intranet Engineer
6/2004 5/2008 Earnhardt Management Company, Chandler, AZ Application Development Developed secure intranet applications to enable users to achieve SSO goals for the company. Developed application to enable users to securely store data in a database with client-side encryption, to allow the users to store sensitive data with complete confidentiality, even from IT personnel. Implemented a web PKI solution to secure the companys internet sites. Network Infrastructure and Security Implemented security on the networks perimeter using ACLs to implement a DMZ to protect the companys web and mail servers. Established SSL SMTP mail on the mail server and implemented authentication for sending mail. Implemented POP and SMTP proxies through a 3rd party spam and virus filtering service to further protect the companys messaging infrastructure. Performed security evaluations and penetration tests to verify security measures.
Sr. Systems Analyst
2/2002 2/2004 CORF Services, Scottsdale, AZ Management Tasks Functioned as director of IT department. Managed all IT projects from 1
initial design specification, hardware and software selection, and implementation. Designed network and created implementation plan for the companys new medical billing software system consisting of 100 IBM blade servers, as well as planning for the network connectivity and datacenter design for the system. Provided 24/7 support to users and clients. Planned and supervised expansion of office to span multiple floors and locations, supervising and planning cabling and voice requirements, as well as installing datacenter infrastructure and access control. Managed outside contractors to complete network projects. Web Development Tasks Designed a secure SSL Email system for HIPAA compliance with customers using co-located servers connected to the enterprise email server via VPN connection with data encryption. Installed 4 Microsoft IIS servers, created ASP-driven websites for the companys web presence, and did all graphic design for the sites. Created a dynamic, fullycustomizable, database and template-driven application to allow clients to create their own high-quality websites with a minimum of interaction. Installed and deployed an IMail web server with web access to over 1500 clients. Wrote all security policies for distribution to clients. Network Management Tasks Expanded network from 50 nodes to over 200 within 12 months, while simultaneously adding network security and improving workflow for over 50 remote users connecting via Citrix Metaframe XP, Citrix Nfuse, and Cisco VPN using a 3000-series concentrator. Installed, configured, and deployed SalesLogix CRM application to over 100 users. Installed and supported over 150 remote client facilities in installing new medical billing software and adding connectivity to the remote sites via hardware VPN. Configured SSL certificates for secure web connections. Completely rebuilt and expanded network from 2 servers up to a total of 12 including replacing and correcting problems in all Active Directory controllers.
Network Engineer
8/2001 - 11/2001 SinnPer Systems, Phoenix, AZ Installed and configured servers and workstations in Windows NT/2000 environments for a wide array of clients. Configuring Windows 2000 Terminal Services clients and servers, VPN setup, MS Exchange setup and troubleshooting, as well as web development.
Network Engineer/Field Technician
7/1999 - 5/2001 Computer Service Now, Middletown, OH Network and hardware field technician. Service corporate customers onsite with a variety of hardware platforms and operating systems. Troubleshooting Novell, Windows NT, and Windows 95/98 clients and servers.
Technical Department Manager
7/1998 - 7/1999 PC Micro Direct of Ohio, Dayton, OH Responsible for supervising service department technical staff of 5 technicians performing system and network repairs and troubleshooting. Provided advanced phone and on-site support to customers.
LAN Administrator
2
7/1997 - 7/1998 Micro Direct, Dayton, Ohio Managed the store's NetWare 4.11 and Windows NT mixed-environment network to guarantee high availability and performance. Managed a staff of 15 in all store and technical functions. Responsible for profit and loss of sales department, product procurement, and customer relations
Certifications
(ISC)2 Certified Information Systems Security Professional (CISSP) VMware VCP, VTSP, VSP A+ Technician Cisco CCNA Citrix CCA i-Net+ Certification Microsoft MCSE Network+ Novell CNA Certification
