System Analyst

David Walton

***.******@*****.*** • 708-***-**** • Woodridge, IL

SUMMARY

Cybersecurity NOC/SOC Analyst with a proven track record in SIEM management, incident response, and log analysis. Demonstrated ability to reduce false positives, respond swiftly to threats, and enhance team efficiency. Skilled in securing enterprise environments and optimizing tools for threat detection and remediation. EXPERIENCE

Walgreens, Technical Risk & Compliance Administrator Jul 2025 - Aug 2025

Assisted in review and updated IT SOX controls and self-assessments to ensure accuracy and completeness of data Assisted in regulatory cybersecurity guideline analysis to review current environment and align as necessary Assisted with the implementation and testing of an attestation process in Archer eGRC to ensure compliance with security standards

Assisted in development and implementation of SharePoint Governance Policy, Site Owner Guide and ongoing user access management controls

Assist in the documentation of controls and procedures for various technical processes within Walgreens Boots Alliance Aqueity, Cybersecurity Engineer

Feb 2024 - Present

Administered and fine-tuned SIEM platforms to detect, analyze, and respond to security threats, improving log correlation and reducing false positives.

Conducted in-depth information security assessments to identify vulnerabilities, enforce compliance, and strengthen enterprise security posture.

Supported GRC audits by aligning security controls with frameworks such as NIST, ISO 27001, HIPAA, SOX, and PCI-DSS, ensuring regulatory compliance.

Deployed and managed EDR solutions to contain threats, monitor endpoints, and remediate compromised systems in real time. Led incident response activities, including triage, root-cause analysis, and forensic investigation, to reduce mean time to detection

(MTTD) and resolution (MTTR).

Performed risk assessments and implemented risk management strategies to safeguard sensitive data and minimize business impact.

Applied audit and control frameworks to monitor system integrity, ensuring effective internal controls and compliance reporting. Monitored and managed intrusion detection and prevention systems (IDS/IPS) to proactively block malicious traffic and intrusion attempts.

Oversaw identity and access management (IAM), including role-based access, privilege reviews, and MFA enforcement to prevent unauthorized access.

Developed and enforced security policies and governance frameworks, aligning with business objectives and compliance requirements.

Delivered social engineering awareness training, reducing phishing susceptibility and strengthening the human security layer. Configured and maintained firewall and network security policies, enforcing segmentation and access control to protect critical infrastructure.

Conducted vulnerability management cycles, including scanning, patch validation, and remediation tracking to close security gaps.

Performed malware analysis to understand attack vectors, create detection rules, and strengthen endpoint defenses. Secured cloud environments (AWS, Azure) by implementing identity controls, monitoring services, and enforcing compliance baselines.

Ensono, Cloud Engineer

Aug 2019 - Apr 2024

Hardened cloud infrastructure with automated scripts and security tools Managed firewalls, load balancers, and IPS for cloud-based services. Conducted cloud vulnerability assessments; recommended patching actions. Reported cloud security postures to leadership, aiding risk decisions. Led cloud migration efforts with minimal business disruption. Collaborated with IR teams during critical incidents in the cloud space Amex Nooter LLC, IT Infrastructure Specialist

Apr 2018 - Apr 2019

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Provided Tier 2/3 support for IBM-based enterprise IT infrastructure. Handled hardware/software procurement and vendor negotiations. Deployed and configured desktops, phones, and office tech equipment. Resolved performance issues across systems and applications. Maintained patch management schedules and endpoint hardening LICENSES & CERTIFICATIONS

AWS Cloud Solutions Architect, Cloud Practioner

Microsoft Azure Cloud Certifications

Identity & Access Management

Comptia Cloud

Technical Tools & Platforms

SKILLS

SIEM Management • Information Security • GRC Audit • Endpoint Security & EDR • Incident Response • Risk Assessment & Management • Audit & Control Frameworks • Intrusion Detection & Prevention • Identity & Access Management • Security Policies & Governance

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