Cybersecurity Engineer

Joshua Dieckmann

Omaha, NE ***** • 812-***-**** • *.*********@*********.***

PROFESSIONAL SUMMARY

Results-driven Senior Cybersecurity Engineer with 10+ years of experience safeguarding enterprise and government systems. Specialized in threat hunting, incident response, and vulnerability management, leveraging tools like Cortex XSOAR and Elastic Stack to mitigate complex security threats. Adept at orchestrating audits, implementing proactive defenses, and ensuring NIST/RMF compliance. Active TS/SCI clearance with a proven ability to collaborate across teams and deliver mission-critical security improvements.

️ TECHNICAL SKILLS & TOOLS

SIEM & Monitoring: QRadar, Elastic Stack, Wireshark, IBM X-Force Exchange

EDR & Threat Protection: Carbon Black, Palo Alto Threat Prevention, Cisco Firepower, Cisco ASA

Incident Response & SOAR: Palo Alto Cortex XSOAR, FTK (Forensic Toolkit), Nmap

IAM & Directory Services: Microsoft Active Directory

Cloud Security & DevSecOps: Docker

Penetration Testing & Red Teaming: Kali Linux, Metasploit, Burp Suite (familiar)

Compliance Frameworks: NIST, RMF

Languages & Tools: Bash, PowerShell, basic Python (scripting for automation), STIG Manager

PROFESSIONAL EXPERIENCE

Peraton — Bellevue, NE

Senior Cybersecurity Engineer — Dec 2022 – Present

Delivered cybersecurity training aligned with NIST and RMF frameworks.

Enhanced threat detection capabilities by integrating Elastic Stack for log aggregation and SIEM analytics.

Implemented Palo Alto Cortex XSOAR for automated incident response workflows.

Utilized STIG Manager to streamline and document security baselines in alignment with DoD hardening standards.

Cybersecurity Analyst — Jul 2021 – Dec 2022

Performed root cause analysis of security incidents; utilized Wireshark, Nmap, and IBM X-Force Exchange for threat intelligence correlation.

Conducted routine audits and vulnerability scanning with Carbon Black and QRadar.

Managed identity and access issues using Active Directory.

OPTK Networks — Lincoln, NE

Head of Information Technology — Jan 2021 – Jun 2021

Directed IT security operations and led infrastructure overhaul.

Ensured regulatory compliance and performed risk assessments aligned with NIST.

Oversaw vendor negotiations and tech implementation across firewall and endpoint platforms.

Administered security operations using Azure Security Center and performed system hardening with Kali Linux, Metasploit, and managed access with Azure AD.

TEKsystems Inc — Bellevue, NE

Network Administrator — Aug 2020 – Mar 2021

Managed LAN/WAN and perimeter security tools including Cisco ASA.

Supported military systems through on-call troubleshooting and firewall configuration.

CERTIFICATIONS

ISC2 Certified Information Systems Security Professional (CISSP)

CompTIA Cybersecurity Analyst (CySA+)

CompTIA Security+

CompTIA Network+

CompTIA A+

CLEARANCE

Active TS/SCI Clearance

LOCATION & AVAILABILITY

Based in Omaha, NE • Open to hybrid or remote opportunities

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