Open to opportunities

Marinella David

@marinelladavid

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Results-driven Cybersecurity Leader and Military Veteran.

Zimbabwe

Message

What I'm looking for

I seek a dynamic role in cybersecurity where I can leverage my leadership skills and technical expertise to enhance security measures and drive team success.

I am a results-driven Cybersecurity Leader and Military Veteran with over 5 years of hands-on technical experience and 6 years of military leadership. My expertise spans diverse cybersecurity domains, including security operations, incident management, and security and risk management. I possess an active Top-Secret clearance and hold a Bachelor's Degree in Information Technology Cybersecurity, which complements my practical experience.

Throughout my career, I have demonstrated a strategic and resourceful approach to problem-solving and decision-making. At Science Applications International Corporation, I managed a team of 18 in a 24/7 Security Operations Center, leading initiatives that resulted in a 60% increase in team competency. My leadership development efforts achieved a 100% retention rate of Tier 2 analysts, showcasing my commitment to fostering a high-performing, collaborative workforce.

My technical skills include proficiency in SIEM tools, threat detection, and network security. I have successfully directed rapid responses to cybersecurity incidents and improved threat detection accuracy by 25%. I am passionate about continuous learning and dedicated to enhancing organizational security posture through effective communication and team leadership.

Experience

Work history, roles, and key accomplishments

Current

Cybersecurity Operations Supervisor

Current

Science Applications International Corporation

Sep 2023 - Jan 2025 (1 year 4 months)

Directed rapid response to cybersecurity incidents and led the D&R team in cloud migration efforts. Enhanced threat detection accuracy by 25% and reduced false positives by 40% through optimized SIEM searches.

Incident Response Cloud Security Threat Detection Cybersecurity Operations Cross Functional Collaboration Documentation Network Security Data Integrity

Current

Cybersecurity Operations Team Manager

Current

Science Applications International Corporation

Oct 2021 - Jan 2025 (3 years 3 months)

Managed a team of 18 in a 24/7 Security Operations Center, enhancing team competency by 60% through targeted training and process improvements. Led the transition to a Tierless SOC model, improving ticket resolution speed by 30%. Ensured compliance with NIST standards and mitigated risks across departments.

Team Leadership Security Operations Incident Management NIST Process Improvement Risk Management Threat Detection Project Management

Cybersecurity Ops Associate

Science Applications International Corporation

Oct 2021 - Sep 2023 (1 year 11 months)

Established a Process Asset Library to streamline operations and contributed to incident response plans. Skilled in identifying security threats and analyzing security logs for indicators of compromise.

Incident Response Log Analysis Malware Analysis Continuous Improvement

Healthcare Supervisor

United States Army

Sep 2017 - Apr 2023 (5 years 7 months)

Supervised a team of 20 healthcare professionals, managing operations for a medical clinic serving over 15,000 soldiers. Ensured compliance with medical directives and trained staff on procedures.

Team Management Healthcare Operations Compliance Staff Training Medical Readiness Leadership Recruitment Patient Care

Junior Information Security Engineer

Halfaker and Associates, LLC

Nov 2020 - Oct 2021 (11 months)

Led teams to significantly reduce vulnerability risks and conducted root cause analysis for remediation strategies. Monitored security systems and ensured compliance with security standards.

Vulnerability Management Security Monitoring Root Cause Analysis Compliance Security Policies Incident Response Data Collection User Behavior Analytics Security Tools

Information Technology Intern

Halfaker and Associates, LLC

Mar 2020 - Nov 2020 (8 months)

Assisted with incident response and security impact analysis while conducting vulnerability assessments across infrastructure. Supported drafting IT policies and procedures.