Resume
Chris Eheler
Security Engineering · Infrastructure Security · Security Automation
Professional summary
Systems, software, and security professional with six years of technical experience supporting production environments across application development, systems administration, networking, and security operations. Professional security experience includes FortiGate firewall administration, Wazuh SIEM deployment and detection tuning, network segmentation and VPNs, security-event investigation, and PCI DSS remediation. Strong software-development background in C#, with current security automation and cloud engineering work using Python, PowerShell, AWS, Terraform, IAM, and CloudTrail.
Technical skills
Security: Wazuh SIEM, FortiGate, Security Monitoring, Detection Engineering, Windows Security Events, Firewall Policy, Network Segmentation, PCI DSS Remediation
Infrastructure: Windows Server, Active Directory, Hyper-V, DNS, DHCP, Linux
Cloud & IaC: AWS, Terraform, IAM, VPC, CloudTrail, Systems Manager
Software & Automation: C#, Python, PowerShell, SQL, LINQ, Git, JSON
Networking: TCP/IP, Cisco Switching, VLANs, VPNs
Professional experience
Deputy Sheriff | Lake County Sheriff's Office
- Conduct complex investigations and serve as a technical resource for digital evidence, mobile-device forensic extraction data, computers, storage media, body-worn camera systems, and field-computer troubleshooting; produce detailed investigative documentation and courtroom testimony.
Jr. Systems Administrator / Software Developer | Transfer Flow Inc.
- Deployed and administered Wazuh SIEM across approximately 100 workstations and machine controllers, managed agents through Group Policy, created detection rules and alerts, and investigated security events and unauthorized access attempts against public-facing infrastructure.
- Selected, installed, and configured FortiGate firewalls, including VLAN segmentation, firewall policies, site-to-site VPN connectivity, and ongoing security administration.
- Partnered with an external PCI DSS auditor to remediate infrastructure findings and reduced exposure from vulnerable legacy systems through network isolation when upgrades were not feasible.
- Designed and implemented a Cisco switching refresh and 10 Gb server backbone while administering five Hyper-V hosts supporting approximately 15–35 virtual machines and AD, DNS, DHCP, and SQL Server services for more than 100 users.
- Developed and maintained production C# applications supporting reporting, inventory management, engineering file versioning, and internal business processes using C#, LINQ, and Microsoft SQL Server.
Technical Support Specialist | Transfer Flow Inc.
- Resolved workstation, application, account, and infrastructure issues through Jira; documented technical processes and communicated technical recommendations to technical and nontechnical stakeholders.
Corporal, Motor Transport | United States Marine Corps Reserve
- Selected for a Maintenance and Supply Quality Control Chief billet normally assigned to a Sergeant; provided technical quality control and instruction for automotive and electrical systems and previously held a U.S. government Secret security clearance.
Selected security engineering projects
Security Automation & Detection Lab
C#, PowerShell, Python, Windows Security Events, Linux Security Logs
Case study →Education & credentials
Associate Degree, Computer Programming — Butte College
Fortinet Network Security Expert (NSE) Level 4 — Legacy credential