Security analysis grounded in evidence.

Hands-on lab and project experience across security operations, network analysis, incident investigation, Windows/Linux infrastructure, and telemetry integration.

Portrait of Jacob Macdonnell
Jacob MacdonnellSecurity Analyst
Security OperationsNetwork AnalysisIncident InvestigationEndpoint & Log Analysis

Professional summary

Security operations-focused analyst with hands-on lab and project experience in incident investigation, network analysis, Windows/Linux infrastructure, and telemetry integration. My approach is to follow technical problems until I can explain the mechanism end to end. In controlled labs and course simulations, I correlate endpoint, network, memory, and Windows event evidence, test explanations against the available data, expand scope when needed, and document conclusions that are traceable to the evidence. Supporting work demonstrates systems troubleshooting, Python automation, and clear technical documentation.

Technical skills

Security Operations & Incident Investigation

Alert triage, incident investigation, scope expansion, IOC enrichment, playbooks/runbooks, containment recommendations, incident reporting, MITRE ATT&CK, PICERL in labs and course simulations.

SIEM, Endpoint & Identity

Wazuh SIEM/XDR, Sysmon, Windows Event Logs, Sigma, Hayabusa, Active Directory lab administration; Microsoft Learn SC-200 labs covering Microsoft Sentinel/KQL and Defender XDR/Defender for Endpoint; Splunk/SPL in guided labs.

Network Analysis & Digital Forensics Labs

Wireshark, Zeek, RITA, PCAP analysis, TCP/IP, DNS, HTTP/S, C2 beacon analysis, Volatility 3, Procmon, Regshot, malware triage.

Systems & Infrastructure

Windows 11, Windows Server 2022, Ubuntu/Linux, Active Directory/DNS, VMware, network segmentation, static addressing, LVM, Netplan.

Cloud & Platforms

AWS security labs covering S3, IAM, IMDS/SSRF, AWS CLI, and ScoutSuite configuration assessment; GCP and Azure fundamentals.

Scripting & Automation

Python, PowerShell, SQL, Git/GitHub, triage automation, log parsing, evidence extraction.

AI-Assisted Development

ChatGPT/Codex, Claude Code, Google Antigravity.