The Resume of Darius Dauer

I’m a System Administrator, recently moved into Durham, North Carolina with extensive experience in Internal Technology, especially in regards to large network design and maintenance, database management, process automation and Voice over IP.

My objective is to build and maintain computer network infrastructures that maximize productivity and reduce costs.

 

Qualities:

• Highly analytical and able to solve problems quickly in a wide variety of IT related subjects.
• Able to manage IT support teams.
• Objective, logical, positive, respectful and helpful attitude.
• Diligently looking out for the best interests of the company and advising accordingly.
• Have a thorough understanding of each of the topics on the right.

 

Fields of Expertise:

• Microsoft: Windows Server 2000-2012, Active Directory, Group Policy, SQL, Hyper-V
• Linux: Ubuntu, CentOS, LAMP, MySQL, Command Line, Bash Scripting, Python
• Voice Over Internet Protocol: Asterisk, Vicidial, Elastix, SIP, Predictive Dialing
• Networking: Routing, Firewalls, Virtual Private Networks, Load Balancing, VLANs
• Support: Desktop Support, Help Desk Ticketing, On-call 24/7/365
• Software: Microsoft Office, Windows 98 through 10, Mac OS 8 though 10.11

Contact me via email or phone:

 

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System Administrator — July 2014 to Present

West Palm Beach, FL

• Managing a team that supports the IT needs for roughly 300 employees.
  • Responsible for handling IT support tickets and assigning jobs to others.
  • Built the ticketing system that we use to track and close 20+ tickets per day.
• Performing as a system administrator
  • Built and maintain a cluster of Asterisk/Vicidial based servers.
  • Built and maintain a network spanning 20 offices all interconnected by VPNs, SIP trunking, long-range wireless and/or fiber optics.
  • Scripted a sales tracker that uses my own heuristic algorithms to predict which phone numbers in a dataset are more likely to result in a sale based on what we know about the callee and previous sales to people like him/her.

System Administrator for Pharmacy Holdings USA, Inc. — July 2011 to January 2014

Pompano Beach, FL

• Built the network infrastructure from the ground up.
  • Worked with the electricians to wire each office and pharmacy with Cat5
  • Ethernet cables and jacks and Fiber Optic wiring for longer transmission needs across buildings.  Terminated 800+ drops and ran 23+ miles of wire for this company.
  • Collaborated with the telecom providers to insure the company was getting the most for their investment and monthly costs.
  • Built custom servers to run all aspects of operations. Server hardware had in some cases 64 CPU cores, dozens of hard drives and hundreds of gigabytes of memory.  Every machine had remote administration capabilities.
  • These servers ran many virtualized services. File servers, Windows Active Directory, Voice over IP PBXs, Web hosts and Database servers ran on Oracle, Virtual Box, Microsoft Hyper-V, Xen and VM Ware virtual hypervisors.
• Managed a small team of IT professionals.
  • Worked as a liaison between management and developers to make sure everyone was on the same page during a project.
  • Worked with telecom providers to maximize the value of the services we needed from providers and minimize the cost to the company.
  • Monitored network utilization to find areas where we could either save money, improve productivity or increase reliability.
• Integrated many systems to make the best possible use of data.
  • Built a Voice over IP phone system that spanned 6 offices and 2 countries.
  • Connected the call recordings to a main database so that employees would be able to find calls from within a client’s profile.
  • Created a database-driven phone tree that enables clients to order drug refills 24/7 without needing to speak to an employee.
  • Implemented a system management interface that would monitor resource usage and send alerts when any errors were detected anywhere on the network.
• Interconnected the networks of multiple buildings.
  • Worked with ISPs to create a single network that spanned every location.
  • Each building used some combination of dedicated VPLS/MPLS networks, long range Wifi, Fiber Optics or VPNs to connect back to servers centrally located in the datacenter.

System Administrator for Axiom Engineering Inc. — July 2005 to July 2011

Coral Springs, FL

• Built redundant file servers to house all of the company’s data.
  • These servers ran enterprise Linux operating systems.
  • Servers each had uptimes of over 2 years without restarts or service interruptions.
• Created and maintained a small fleet of high-powered workstations used for CAD and drafting.
• Connected with other tenants in the building to combine our respective internet connections into a mesh network of redundant systems to insure internet uptime for everyone.

Other Areas of Expertise:

• I can build routers using commodity hardware that can support multiple internet connections at a fraction of the cost of comparable Cisco, Juniper, SonicWall offerings.
• I have designed servers and workstations specifically tuned for a variety of users and businesses, including web design, video editing, gaming, bulk file storage, database hosting, predictive dialing and PBXs.
• My personal servers run a mix of Xen, VirtualBox and Hyper-V to maximize the usage of the hardware and minimize the costs of colocation.
• I also have experience rebuilding battery backup units, automotive engines and transmissions, liquid-cooled computers, and RAID systems.
• I was President of the Robotics Team at Florida Atlantic University from 2005 to 2008
• I have a passport and I’m willing to travel to distant datacenters or offices when needed.
• CompTIA A+ certified and getting more IT certifications in the fields of Networking, Unix/Linux and Data Security.

What I know…

Server: Microsoft Server, Domain Controllers, Active Directory, Group Policy, Server Design, Remote Assistance, Remote Desktop, Website hosting, Database hosting, Cloud hosting, Networking: Cisco, Dell, Sonicwall, pfSense, m0n0wall, DD-WRT, OpenWRT, Demilitarized Zone, DMZ, Domain Name System, DNS, VPLS, MPLS, Virtual Private Network, VPN, Tunneling, IPsec, PPTP, OpenVPN, Quality of Service, QOS, Power over Ethernet, PoE, Routers, Switches, Hubs, Wiring, DSL, Cable, T1, Fiber Channel, Fiber Optics, Wifi, Long Range Wireless, Bluetooth, Mesh Networking, OLSR, BATMAN, The Onion Router, TOR, Link Aggregation Control Protocol, LACP, Transmission Control Protocol, TCP, User Datagram Protocol, UDP, DHCP, Network Address Translation, NAT, Port Address Translation, PAT, VLAN, Virtualization: Microsoft Hyper-V, Oracle VirtualBox, VMWare, Citrix Xen Server, Telephone and Voice Over IP: Asterisk, FreeSwitch, Switchvox, Trixbox, Elastix, Predictive dialing, Progressive dialing, Software: Microsoft Office, Internet-based applications, Audio editing, Video editing, Image editing, Data Recovery, Windows XP, Windows Vista, Windows 7, Windows 8, Windows Server 2003, Windows Server 2008 R2, Windows Server 2012, Linux, Centos, RedHat, Ubuntu, Debian, FreeBSD, Mac OS X, IOS, Hardware: Video walls, Solid State Disk, SSD, Network Accessible Storage, NAS, Storage Area Network, SAN, Redundant Array of Independent Disks, RAID, SATA, SAS, PCI-E, Ethernet, Cat5, Cat6, USB, Uninterruptible Power Supply, UPS, Motherboards, Power Supplies, Desktop Design, Misc: Bitcoin, Cryptocoin, High Definition Security Cameras, Motion Detection, Home Automation, Biometric Security, RFID