Jon Choi Email & Phone Number

Carrollton, TX, US

Irving, Texas, US

Cincinnati, OH, US

• Implemented SentinelOne EDR + Singularity XDR, reducing malware infections by over 70% in 3 months, improving overall security posture
• Deployed BeyondTrust Privileged Management (PAM) tool, leading to a 40% reduction in access-related incidents
• Configured and managed network traffic through administration of ForcePoint SWG and CheckPoint Firewall
• Spearheaded the implementation of LogRhythm, resulting in 60% enhancement in threat detection and response capabilities, mitigating the risk of data breaches and business interruptions
• Developed and maintained LogRhythm dashboards, alerts, reporting, and analysis, improving threat detection and response capabilities by 75%
• Verified proper application of security patches and expedited remediation efforts using Tenable

Peoria, IL, US

• Executed comprehensive IT audits and implemented actions plans to resolve control deficiencies, resulting in increased security posture and compliance with regulatory requirements
• Developed and implemented information security policies, standards, and procedures aligned with business strategy and industry frameworks, ensuring a secure and compliant environment
• Conducted network security pen-testing assessments utilizing the MITRE and NIST frameworks, identifying vulnerabilities and mitigating risks to the organization
• Collaborated with cross-functional teams to schedule, manage, and execute multiple audits across various business functions simultaneously, ensuring timely completion and efficient use of resources
• Maintained PCI-DSS and PA-DSS compliance by implementing appropriate security standards/controls and responding to security questionnaires from vendors and external partners

• Led the complete reconstruction of a client’s domain and systems following a ransomware attack, minimizing the immediate impact of the incident
• Provided expert consulting services to individuals and organizations, offering project assistance and augmenting existing IT teams to enhance efficiency
• Executed end-to-end management of IT projects including planning, development, testing, implementation, risk assessment, maintenance, and support
• Resolved and troubleshoot complex IT issues, identified areas of improvement, and recommended software, hardware, and networking solutions to enhance client operations
• Orchestrated marketing activities, including blog outreach, strategic planning, social media, and digital/print media campaigns, to enhance the organization’s online presence
• Conducted threat, risk, and vulnerability analysis, as well as providing expert security advisory services to clients, enabling them to stay ahead of emerging threats and minimize risk

Normal, IL, US

• Implemented incident response plans resulting in a 50% reduction in response time
• Managed and remediated escalated security events from threat monitoring systems
• Monitored and created dashboards/alerts in Splunk, Nessus, and Defender
• Developed runbooks/playbooks in compliance with enterprise incident management standards
• Generated and documented reports on assessment case findings, outcomes, and vulnerability metrics
• Analyzed, investigated, and reported on phishing emails

Franklin, Tennessee, US

• Led 1st/2nd level support for calls and trouble tickets for hardware, software, network assistance, and problem resolution
• Directed day to day operations for team through assignment of specific tasks and duties to individuals for daily support and ongoing projects and triaging support tickets
• Monitored network and system logs
• Separated client and server network infrastructure through creating subnets and VLANs for a more secure network
• Integrated and deployed wireless network throughout the office and plant floor
• Examine logs for malware, torrent, and other non-authorized file breaches

Bachelor'S Degree, Information System Assurance And Security Sequence, Information Systems: Security/Assurance

Associate Of Science (A.S.), General Studies