Timothy E. Johnson

**** ****** **** **., **** D

Highlands Ranch, CO 80130

720-***-****

ac2j9e@r.postjobfree.com

SYSTEMS ADMINISTRATOR / NETWORK ENGINEER

U.S. Air Force veteran and seasoned IT professional with 20 years of experience in systems administration and network management in the telecommunications industry offering expertise in Unix / Linux, Windows Server (2008 – 2012 R2), and Cisco ASR / CATALYST / NCS

CORE COMPETENCIES

56K AD CS AD DS AD FS AD LDS AD RMS AIX ATM BSD CCNA CompTIA A+ Datakit DDS DHCP DNS DS0 DSL FAT32 Frame Relay GTP HP-UX ISDN LDAP Leased Lines MCSA MPLS NTFS OC12 OC348 OSI POTS / PSTN RHCSA RHEL SMDS SONET RING SUN-Solaris T-1 T-3 TCP/IP UDP UNE-P VOIP X.25 XTSI

ABILITIES & EXPERIENCE

AT&T – Denver, CO

Denver Service Administration Group 2010 – 2016

Systems Administrator:

Ensured 24 x 7 365 continuity of service for 140 mission critical applications / platforms

User account management of Citrix, PAM RADIUS, RAS, RSA SecureID, SAFENet

Enforced ASPR compliance and remediated CPNI, SPI and SOX deficiencies

Imaged, troubleshot, repaired workstations, PCs, laptops, devices, and peripherals

IT Help Desk expert for Transport Services Organization, OSWF and outside plant

Resolved ACT, AOTS, BMP, REMEDY, USH, and WMS tickets and trouble calls

Installed / pushed / pulled OS updates and patches and performed regression testing

Ran diagnostics and sent system files and core dumps to application support manager

Halted / restarted applications, terminated hung sessions, initialized links, and reset ports

Killed and initialized / re-spawned processes, daemons, demons, and servers

Traced / isolated network outages, engaged network element managers, restored service

Performed scheduled application / server restarts, maintenance routines, health checks

Tested failover / emergency switching procedures during disaster recovery exercises

Mini-Computer Maintenance and Operations Center 2005 – 2010

Data Center Technician:

Monitored application / network alarms, initiated notifications, coordinated triage

Ensured 24 x 7 365 availability of NAS and SANs in the Data Center

Ran incremental / full system backups, changed out media, scheduled off-site storage

Followed up with equipment vendors to promote compliance with SLAs

Replaced CPUs, memory modules, disk drives, SSDs, and power supplies in servers

Configured NIC teaming to round robin mode for load balancing

Configured subnets and VLANs on Cisco routers and port forwarding on switches

Carried out cable mining, dressing, and labeling for equipment installation / removal

Maintained inventory records and handled the logistics for requisitioned parts

Regional Network Operations Center 1997 – 2005

Transport Services Engineer:

Provisioned DS0, T1, T3, OC12, and OC48 facilities and circuits for ESO group

Slotted TDM / DWDM optical transport carriers on SONET Ring facilities

Set framing (ESF or B8ZS) and signaling (CCS7 Path) on circuits

Handled grooming / de-growth of DACS frames / Alcatel switches for capacity recovery

Served as OCO on service cutovers of tandem, IOC, and access circuits for ITO / TMO

Guided OSWF and / or LEC in use of T-BERD or Scientific Atlanta test sets

Corrected connectivity issues such as turnovers and loopbacks at cross-connect panels

Designed WORD documents and provisioned signaling, framing and translations

Consulted capacity planners for alternate service paths to terminating equipment

Assembled cut packages with M&P including back-out procedure should service fail

TeleTech TeleServices – Thonrton, CO 1996 – 1997

ISP Technical Consultant:

Provided technical support for AT&T WorldNet and Easy World Wide Web ISPs

Isolated connectivity issues by running networking utilities from the command shell

Configured port forwarding, assigned ports to DMZ and setup VPNs on secure gateways

Addressed I/O, IRQ, and DMA conflicts by assigning unique resources in BIOS

Disabled SPI on low risk ports per IPsec best practices

Adjusted MTU size “windowing” in Winsock to optimize for network adapter buffer

Synchronized port speeds between nodes to optimize traffic flow

Educated clients on the use of torrent downloads and UDP for streaming videos / gaming

Removed apps from the Windows, Startup folder or disabled “launch at startup” option

Excluded apps from Windows Firewall and / or Symantec End Point Protection

Downloaded / installed Windows updates and device drivers from manufacturer website

Analyzed system *.ini and *.log files and altered / deleted Windows Registry entries

Monitored calls for quality assurance and developed training curriculum for new techs

U.S. Air Force – George A.F.B., CA

Airman 1st Class (A1C / E-3) 1987 - 1990

Weapon Control Systems Specialist:

Maintained, calibrated, troubleshot radar control, optical sighting, and tracking systems.

Pulled LRUs from the raydome and / or cockpit of jets in the calibration Docks

Tested function / performance of Line Replaceable Units in the shop on mock-ups

Adjusted frequency of klystrons and magnetrons to within very tight tolerances.

Inspected and replaced worn or defective seals and square O-rings in waveguides.

Aligned TISEO (Target Illumination System Electro-Optical) laser guidance module

Held a Top-Secret Security Clearance.

EDUCATION & TRAINING

~ Earned 73 credit hours toward Bachelors of Science in IT Arapahoe / Aurora CC

~ CCNA (Cisco Certified Networking Associate) 360 Training Academy, Littleton, CO

~ MCSA (Microsoft Certified Solutions Administrator) 360 Training Academy, Littleton, CO

~ CompTIA A+ Certification – Arapahoe Community College, Littleton, CO

~ HP-UX System and Network Administration I – HP Education and Training at AT&T

~ Datakit Operations, Admin. & Maintenance – International Systems Strategies, Inc. at AT&T

~ Hands-On UNIX for Systems Support Operations – International Systems Strategies at AT&T

~ OF0461 NCC Maintenance Transport Appreciation – NSD – NOET at AT&T

~ NP0724 – General Telemetry Processor – NCS – NOET at AT&T

~ NP0171 – TMAS Provisioning for T3 – NCSW – NOET at AT&T

~ OF0475 NCC Maintenance – Transport T3 Path Troubleshooting – NCS – NOET at AT&T

~ Transport Provisioning Using TSNOW – NCS – NOET at AT&T

~ Qualified DCS3/1 Alcatel – T3 Provisioning Group at AT&T

~ Certificate of Training in Weapon Control Systems – 3400th Technical Training Wing U.S.A.F.

~ High School Diploma – Wayne High School – Ft. Wayne, IN

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