Christian’s Portfolio

Led a five-person engineering team supporting enterprise client infrastructure on a five-year assignment at Toyota Motor North America, serving as incident manager for high-impact production events. Audited client AWS accounts for exploitable misconfigurations, administered Entra ID conditional access and MFA, and remediated DDoS vectors through AWS Shield, WAF, and CDN. Owned SLA performance, vendor contracts, and hiring while running the post-incident reviews that turned recurring failures into preventive controls.

Triaged SIEM alerts across networks, endpoints, and servers, correlating events to reconstruct incident timelines and investigating spear-phishing campaigns aimed at senior staff. Served as lead LogRhythm administrator, building correlation rules, writing custom parsers for malformed log sources, and mapping detection coverage to MITRE ATT&CK. Planned and executed the SIEM migration onto a restructured server architecture, then validated coverage afterward so monitoring did not silently degrade.

Served as Level 3 escalation point for a support team of four across roughly 350 employees in a HIPAA-regulated environment. Administered Active Directory and Azure AD, Exchange permissions, Group Policy, and MFA, applying least privilege at provisioning and treating revocation at termination as a controlled step rather than an afterthought. Built the standard images and SOPs behind onboarding, deployed security agents through SCCM, and supplied access records and evidence through HIPAA and CMS audit cycles.

Imaged and deployed more than 300 machines supporting a sales force of over 1,500 agents. Provisioned Active Directory accounts and OU changes while maintaining ServiceNow asset and user records accurate enough to be worth trusting.

A competency-based program covering network design, network operations, network security, and cloud security, built on a core IT curriculum spanning systems and services, scripting and programming, data management, the business of IT, and web development. Coursework emphasizes network administration methods for uptime, performance, and security, with industry certifications embedded in the degree path. Completed while working full time.

A proctored, hands-on skills assessment scored on both accuracy and completion across ten challenge modules. Competed in the 2019 and 2020 seasons, scoring 1,470 of 3,000 points at 72.9% accuracy in Fall 2019. Strongest in OSINT, cryptography, wireless access exploitation, network traffic analysis, password cracking, and log analysis.