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Antonio R

@antonior

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Network Security Engineer at Dynamo Technologies LLC who assessed DoD and USDA systems for vulnerabilities.

United States

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At Dynamo Technologies LLC, I supported DoD and USDA stakeholders by coordinating vulnerability assessments across cloud and on-premises systems.

I used Tenable/Nessus and Invicti to scan systems, review findings, investigate potential false positives, and share practical remediation recommendations with technical teams.

At Nelnet, I supported vulnerability management and security operations with ACAS and Nessus, and contributed to FedRAMP-related compliance work. I also prepared Excel-based reports and dashboards to communicate security status.

Earlier, I monitored and maintained infrastructure in DoD environments at Valdez International Corporation, including SolarWinds monitoring and vulnerability remediation support. I hold AWS Certified Cloud Practitioner, SSCP, and CompTIA Security+ certifications.

Experience

Work history, roles, and key accomplishments

Network Security Engineer

Dynamo Technologies LLC

Jul 2022 - Sep 2026 (4 years 2 months)

Served in a client-facing security support role for DoD and USDA stakeholders, coordinating vulnerability assessment activities. Performed vulnerability scanning using Tenable/Nessus and Invicti, reviewed scan results, and communicated findings to technical teams.

Tenable Nessus Invicti Vulnerability Management Security Assessments FedRAMP DoD USDA Cloud Computing On Premises

Cybersecurity Analyst

Nelnet

Nov 2021 - Jun 2022 (7 months)

Supported vulnerability management and security operations using ACAS and Nessus. Performed SOC-type duties, supported FedRAMP compliance, and administered SolarWinds for enterprise and DoD environments.

ACAS Nessus Vulnerability Management SOC FedRAMP Solarwinds Patching Backup System Building Imaging Troubleshooting Excel

Network Administrator

Valdez International Corporation

Jul 2020 - Nov 2021 (1 year 4 months)

Monitored and maintained network and system infrastructure in DoD environments, troubleshooting network devices and supporting service availability. Supported security compliance and vulnerability remediation through patching and configuration updates.

Network Administration DoD Troubleshooting Patching Configuration Security Audits Solarwinds Virtualization Backup NIPR Processes SIPRNet

PC Technician

TEKsystems Inc.

Mar 2020 - Jul 2020 (4 months)

Imaged, configured, tested, and deployed desktop and laptop systems; performed software patching, backups, and hardware troubleshooting. Supported hardware/software project implementation and coordinated technical escalations.

Imaging Configuration Testing Deployment Patching Backup hardware troubleshooting Project Implementation

Help Desk Analyst

Bell Techlogix Inc.

Jan 2020 - Mar 2020 (2 months)

Resolved end-user hardware, software, and network issues through phone and ticketing workflows. Configured workstations, installed updates and patches, and contributed support documentation.

Help Desk Troubleshooting Ticketing Documentation Workstation Configuration Patching

Network Operations Center Technician

Immedion LLC

Aug 2019 - Dec 2019 (4 months)

Monitored data center and network infrastructure, reviewed system performance, and escalated service or connectivity issues. Performed routine hardware/software maintenance, patching, and equipment installation.

NOC Monitoring Data Center Network Infrastructure Performance Reviews Escalation Management Maintenance Patching Installation

Administrative Specialist

United States Marine Corps

Mar 2015 - Mar 2019 (4 years)

Managed Defense Travel System accounting for over $1 million in flight expenses for deploying and separating service members. Served as Pay and Promotions Manager, maintained pay records, and trained team members.

Defense Travel System Accounting Compensation Management Training Mentorship Administrative Systems