Dona Thomas
Summary
Cybersecurity Engineer with a solid foundation in cybersecurity, forensics, and business information systems. Equipped with hands-on experience in vulnerability assessments, threat detection, incident response, and access management. Proven expertise in administering security tools such as CyberArk, Tanium, Qradar SIEM, Nessus, and Cortex XSOAR. Skilled in implementing security policies, performing server hardening, and leading firewall reviews. Strong background in managing multiple critical sites and collaborating with cross-functional teams to enhance security posture. Holds a Bachelor’s degree in Cybersecurity & Forensics and Business Information Systems, with additional certifications in network and security technologies. Known for a proactive approach, problem-solving skills, and the ability to thrive in fast-paced environments.
Overview
6
6
years of professional experience
2
2
Certification
Work History
Cyber Security Engineer
ST ENGINEERING
05.2023 - Current
- Manage multiple critical sites, including ICDC SOC Center, CAG, CCI, and SIA.
- Conduct vulnerability scans and patch management using Tanium Server.
- Administer CyberArk for user onboarding, password management, and security monitoring.
- Execute break-fix activities to swiftly resolve system issues.
- Facilitate seamless user onboarding/offboarding and access management.
- Implement server and network hardening protocols.
- Lead firewall reviews and provide actionable recommendations for improvements.
- Generate and analyze User Access Matrix reports to ensure compliance.
- Collaborate with cross-functional teams to implement security policies.
- Monitor Attivo BotSink Appliance for advanced threat detection and response.
- Manage CA Server to support identity and access management functions.
- Utilize Nessus Professional for thorough vulnerability assessments.
- Administer Jira database and server for issue tracking and project management.
- Oversee Netgain services for real-time alerting and incident response.
- Manage Talariax SendQuick Alert Plus for effective communication and alerts.
- Deploy and maintain Cortex XSOAR for security orchestration and automation.
- Monitor and analyze security incidents using Qradar SIEM.
- Manage Data Domain for optimized backup and recovery processes.
- Administer Unity NAS for Network File System (NFS) in conjunction with Qradar.
- Ensure RSA Server's secure access and authentication mechanisms are fully operational.
Process Technologist
MICRON SEMICONDUCTOR ASIA Pte ltd
05.2020 - 12.2022
- Troubleshooting and analysing issues on a day-to-day basis
- Participating in projects related to automation and work development
- Attending and disposing alarms according to the wafer status
- Identifying the issue related to equipment hardware errors and taking appropriate actions based on the SOP
- Analysing the abnormalities in process and taking actions for the improvement by altering the process deliverables
- Working under a fast-paced environment with time management, organization, and prioritization skills
Associate Process Engineer
Global Foundries Semiconductor Manufacturing
05.2018 - 05.2020
- Setup and troubleshoot recipes in all tools within Module
- Work on process development as well as knowledge about the equipment hardware systems
- Set up FDC and SPC for developed processes to sustain and improve quality, cost, and productivity requirements
- Making observations and taking measurements directly and interpreting the data for finding the cause for problems
- Setup special recipes for the wafers which underwent alarms to increase the yield
Education
Bachelor of Science - Cybersecurity And Forensics
Murdoch University
SingaporeHigh School Diploma -
Republic Polytechnic
Singapore04.2018
Skills
Vulnerability Assessment & Management
Security Information and Event Management (SIEM)
Identity and Access Management (IAM)
Threat Detection & Incident Response
Security Orchestration, Automation, and Response (SOAR)
Firewall Review & Server Hardening
Backup & Recovery Management
Project Management & Issue Tracking
Certification
- Cisco Certified Network Associate (CCNA)
- Certified Ethical Hacker (CEH)
Timeline
Cyber Security Engineer
ST ENGINEERING
05.2023 - Current
Process Technologist
MICRON SEMICONDUCTOR ASIA Pte ltd
05.2020 - 12.2022
Associate Process Engineer
Global Foundries Semiconductor Manufacturing
05.2018 - 05.2020
Bachelor of Science - Cybersecurity And Forensics
Murdoch University
High School Diploma -
Republic Polytechnic
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