Brennen Welsh
Swansea,IL
Summary
Dedicated Network Security Specialist with extensive experience at Secure Data Technologies, adept at optimizing network security and performance. Proven track record in implementing operational improvements through effective team leadership and management of complex systems. Core competencies include Information Security, risk assessment, and team mentorship. Career goals focus on advancing innovative security solutions to enhance organizational resilience.
Overview
3
3
years of professional experience
4
4
Certification
Work History
Senior Network and Security Analyst
Secure Data Technologies
O'Fallon, IL
08.2024 - Current
- Conducted network performance assessments to diagnose and address connectivity issues.
- Deployed firewalls to safeguard networks against cyber risks.
- Performed consistent evaluations of network setups to align with industry regulations.
- Diagnosed intricate network issues utilizing tools like Wireshark, PingPlotter, and SNMP monitors.
- Analyzed network traffic patterns and bandwidth usage to enhance resource allocation.
- Developed secure remote access mechanisms for employees working offsite using SSL VPN and IPsec tunnels.
- Kept updated records of network architecture diagrams.
- Monitored system logs for anomalies indicating potential security breaches.
- Identified underlying causes of recurrent technical problems by analyzing log files and metrics.
- Coordinated with external service providers to manage maintenance contracts for networking equipment.
- Coordinated with IT teams to formulate and execute disaster recovery plans for key systems.
- Oversaw IP address allocation alongside subnetting operations to optimize network resources.
- Acted as a liaison for internal stakeholders concerning network-related inquiries.
IT Help Desk Manager
Secure Data Technologies
O'Fallon, IL
08.2022 - 08.2024
- Management of a team of 12 junior engineers.
- Conducted regular weekly and monthly meetings to sustain client relationships.
- Managed onboarding and offboarding processes for new clients.
- Led establishment of a new technical team.
- Directed quarterly and annual budget management.
- Oversaw training processes for junior engineers to build core competencies.
NOC Tier 1 Engineer
Secure Data Technologies
O'Fallon, IL
07.2021 - 08.2022
- Configured and managed monitoring system utilizing SNMP.
- Utilized monitoring solutions to ensure optimal client network functionality.
- Conducted maintenance and testing on equipment such as vSphere, servers, routers, switches, and IoT devices.
- Ensured environments remained current and compliant with latest standards.
- Enhanced network monitoring systems to optimize client performance.
- Executed scripts to oversee performance of devices.
Combat Medic Specialist
United States Army
, United States
10.2017 - 10.2021
- Collected, processed, and distributed specimens accurately under stressful conditions.
- Managed maintenance and control of a $4 million inventory of medical equipment.
- Monitored data via spreadsheets and consistently updated databases.
- Achieved operational enhancements that led to cost efficiency and better profit margins.
- Led bi-weekly medical training for junior medics.
- Ensured accurate maintenance of medical records for new and existing patients.
- Protected sensitive information to maintain confidentiality and prevent unauthorized access.
Education
Bachelor's degree - Cybersecurity
SANs Technology Institute
02-2026
Associate of Science - Computer Networking and Cybersecurity
Southwestern Illinois College
Belleville, IL05.2023
Skills
- Information Security
- Operating Systems
- Computer Networking
- IT System Administration
- Cybersecurity
- Network Monitoring
- Firewall Management
- Network Support
- Linux
- Technical Support
- Microsoft Windows
- VMware vSphere
- Vulnerability assessment
Certification
- GIAC GISF, 02/01/25, 02/01/29
- GIAC GFACT, 11/01/24, 11/01/28
- CompTIA Security+, 06/01/22, 06/01/25
- CCNA, 05/01/22, 05/01/25
Military Service
United States Army, United States, Specialist, 10/01/17, 10/01/22
Accomplishments
- Employee of the Year
- GO Team Engineer of the Year
- SANS Advisory Board
- SANS Alumni
Timeline
Senior Network and Security Analyst
Secure Data Technologies
08.2024 - Current
IT Help Desk Manager
Secure Data Technologies
08.2022 - 08.2024
NOC Tier 1 Engineer
Secure Data Technologies
07.2021 - 08.2022
Combat Medic Specialist
United States Army
10.2017 - 10.2021
Bachelor's degree - Cybersecurity
SANs Technology Institute
Associate of Science - Computer Networking and Cybersecurity
Southwestern Illinois College
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