Liam Thoennes
Bedford,MA
Summary
Experienced Network Systems Administrator Level 3 with over 6 years of expertise in managing and maintaining complex network and server environments. Proven track record in installing, configuring, and upgrading system software/hardware, as well as troubleshooting network issues to ensure optimal performance.
Overview
6
6
Years of IT professional experience
Work History
Network Systems Administrator III
K2-Technical
05.2023 - Current
- Designed, implemented, and maintained LAN, WAN, and internet systems for uninterrupted connectivity and optimal performance
- Monitored network traffic, troubleshooted issues, and implemented upgrades over 6 separate networks
- Emphasized information security, adhered to industry standards, and protected sensitive data from cyber threats
- Collaborated with stakeholders, providing technical support, and occasionally delivered training sessions
Network Services Team Supervisor
Department Of National Defense
01.2021 - 10.2022
- Managed team of 4 personnel ensuring best possible network operability, directed tasking for deployment projects and provided guidance for troubleshooting network service interruptions
- Accomplished Tier 2 and Tier 3 network installation and support for voice, data and cryptographic telecommunications systems
- Directed small team as tech Lead which provided network service response for Break/Fix actions causing service interruptions
- Assigned and completed Change Tickets requiring new implementation or deployment of various networking services or devices.
Network Services Team/Network Engineer
Department Of National Defense
11.2018 - 10.2022
- Maintained day-to-day network infrastructure to include VLAN configuration, NTP, OSPF v3 routing, LAN and WAN configurations.
- Remotely resolved network connectivity issues across Wide Area Network (WAN) spanning 10+ sites supporting 1,300 end users.
- Performed management of various CISCO and Brocade Layer 2/3 switching and routing devices. Performed
- architecture reviews and documentation updates for networking infrastructure devices.
- Conducted familiarization training to new network administrators on networking concepts, policy, architecture, access and device details for Cisco and Brocade devices.
- Performed management of CISCO Unified Communications Manager (CUCM) for deployment and maintenance of various Voice over Internet Protocol (VoIP) and desktop Video Teleconferencing (VTC) devices.
Help Desk Supervisor
Department Of Defense
01.2018 - 10.2018
- Primary responsibilities included serving as Network Operating Center (N.O.C.) Watch standing supervisor, Performs 24/7 watch operations to include physical security checks, server room assessments, mission system and network monitoring
- Provided 24/7 status updates and coordination for system and network outages that would impact operations
- Submitted, reviewed and updated IT service requests for 100+ intelligence systems and network enclaves
- Responsible for security controls and real-time monitoring of network security notifications
- Required to assess notifications and contact support for remediation
- Conducted Quality Assurance (QA) and Quality Control (QC) procedures on all information technology (IT) work performed in N.O.C
Education
Philosophy, Computer Science
05.2022
High School Diploma -
07.2016
Skills
- TS//SCl security clearance w/ Cl Scope Poly
- 6 Years of Network administration experience
- CompTIA Security Certified
- IT Infrastructure Management
- LAN and WAN Management
Timeline
Network Systems Administrator III - K2-Technical
05.2023 - Current
Network Services Team Supervisor - Department Of National Defense
01.2021 - 10.2022
Network Services Team/Network Engineer - Department Of National Defense
11.2018 - 10.2022
Help Desk Supervisor - Department Of Defense
01.2018 - 10.2018
Santa Barbara City College - , Philosophy, Computer Science
The Met - High School Diploma,