Stefan Testa Email & Phone Number

San Diego, California, United States

San Diego

Stuff 'n Things, up to and including high Technomancy.

Backline technician for Websense Data Security Suite.

Top tier of daily administration for over 650 customer installations. Each one comprising of a Debian Linux server and at least one Windows kiosk.Developed new server and kiosk configuration as needed, (custom kernels, OS updates, system configuration, etc) to ensure smooth order fulfillment and business continuity.Responsible for reliability of production field servers and kiosks hardware and configuration. Test, integrate, and approve replacements for product components. Managed the integration and deployment of Salesforce.com enterprise for our customer service and sales groups.Wrote a Perl data loader to update our salesforce.com data daily via the bulk API.

On call administration for 24/7 production network and systems.Built a virtual domain email server to provide a hosted mail solution for customer dealerships.Managed hosted customer Apache virtual serversManaged BIND production DNS.Managed VMware ESX systems.

Managed successful deployment of new kiosk manufacturing production line with APW, including the development of all APW process for system setup, QA, and deployment.Created internal operations procedure for Kiosk/Server order setup, QA, and fulfillment; which allowed for a small operations team to meet a rapidly growing amount of Sample System orders. Developed fault-tolerant load balancer system to provide high availability of business critical services.Developed a more stable and versatile replacement NAT-T IPSec VPN solution for all Linux field servers. The entire install base depends on this system for daily operation, and this new iteration enabled the lowering of average per mo / per site overhead cost from about $60 to $0. (Saving potentially about $3000 per month.)Developed monitoring / intrusion detection system for corporate network.Authored the “MedVantx Sample System Product Manual” for use by internal and field support staff, which decreased Customer Service call time.

Lead in team of 2 Sr. Engineers for all day-to-day technical operations issues in 7/24 NOC.All daily administration on Windows 2K and Linux, to include 7/24 network monitoring using Nagios Net Monitor.Environment consisted of approx. 90 servers, running Microsoft Win2K and Redhat Linux, PIX, Exchange, Apache, IIS, SQL Server, etc.Worked directly with senior management to consistently deliver a robust network infrastructure on schedule and within budget.Directed and executed the scaling of IT architecture from 3 to 50 servers to meet growing application traffic and complexity.Drove the overall IT direction toward increased fault tolerance and decreased spending through the adoption of blade servers and load balancing techniques.Listened to user and business requirements and delivered appropriate solutions

Sole supporter of all (60) local users and network functions for 3 facilities by phone and in-person.Handled all hardware/software troubleshooting, maintenance, and upgrades.Regularly used RedHat Linux to provide many server services, including windows domain authentication, in a strictly Windows environment. Developed and implemented a backup strategy for all client and server data.Developed and implemented an internal web site for the Applied Maritime Technology division.Installed T1 uplink to the SAIC-net main campus.Used packet-sniffing software to diagnose network problems.