Resume — Bryce Maxheimer

Professional summary

Cybersecurity professional and U.S. Marine Corps Cyber Warfare Operator veteran with 4+ years of hands-on experience in threat hunting, digital forensics, network defense, and cyber infrastructure management. Adept in tools such as Splunk, Security Onion, Autopsy, and FTK. Proven leader in high-stakes environments with a strong foundation in policy compliance, blue-team operations, and adversary emulation. Currently pursuing a B.S. in Applied Cybersecurity. Active TS/SCI with CI Polygraph.

Technical skills

Tools & platforms: Splunk, Security Onion, Autopsy, FTK, Palo Alto Firewalls, Microsoft Deployment Toolkit, Microsoft Sentinel
Operating systems: Linux (Red Hat, Ubuntu), Windows Server / Enterprise Workstation
Cyber ops: Threat hunting, malware analysis, digital forensics, incident response
Frameworks: STIGs, DoD cybersecurity standards, MITRE ATT&CK, NIST 800-53
Networking: Network mapping, enumeration, packet analysis (Wireshark), TCP/IP, DNS
Soft skills: Leadership, team instruction, high-stress decision making, cross-functional collaboration, problem solving, analytical thinking, initiative

Professional experience

Shift Lead

2025-07 — Present

Defense Finance and Accounting Service (DFAS)

Identified suspicious network traffic patterns through Microsoft Sentinel that led to the initiation of formal security incident investigations.
Collected and analyzed digital artifacts to support threat hunting operations and incident response activities.
Processed and analyzed 30,000+ security alerts while establishing baseline network behavior patterns.
Created automated toolsets, developed SOPs, ensured audit requirements were met, and authored SIEM rules to close security gaps and harden infrastructure.
Performed digital forensics on systems in response to alerts and in support of investigations.

Cyber Security Analyst / Infrastructure Architect

2022-02 — 2025-05

United States Marine Corps — Defensive Cyber Operations

Conducted advanced threat hunting using Splunk and Security Onion, developing custom dashboards and queries to identify anomalous traffic.
Led digital forensic investigations using Autopsy and FTK; produced reports on malware behavior, registry artifacts, and file system anomalies.
Architected and maintained virtual infrastructure supporting 100+ users, ensuring high availability of mission-critical tools.
Enforced STIG compliance across legacy and modernized systems, enhancing cybersecurity resilience of classified infrastructure.

Education

SANS Technology Institute

Expected 2027-01

B.S. in Applied Cybersecurity (BACS) — in progress

USMC Cyber Operators Specialist Course

Completed 2023-10

Joint Cyber Analysis Course (NSA Certified)

Completed 2023-05

Alvin Community College

Graduated 2020-05

Associate's Degree, General Studies

Certifications

Full descriptions and PDFs on the Certifications page.

GCFE — GIAC Certified Forensic Examiner 2026-04
GPYC — GIAC Certified Python Coder 2026-02
GCIH — GIAC Certified Incident Handler 2025-09
GSEC — GIAC Security Essentials 2025-07
GFACT — GIAC Foundational Cybersecurity Technologies 2025-03
CompTIA PenTest+ 2024-08
Red Team Certified Professional (RTCP) — Marine Corps Cyberspace Operations Group 2024-04

Awards & recognition

National Cyber League — Diamond 1 Medal

2025-11

Recognized for scoring in the 97th percentile overall in the Fall 2025 Individual Game for the National Cyber League.

Navy and Marine Corps Achievement Medal

2024-11

Awarded for analyzing 3.5M+ daily packets across critical networks and leading defensive cyberspace operations in Okinawa, JP.

Meritorious Mast

2023-05

Recognized for exemplary leadership of 75 Marines during the Joint Cyber Analysis Course.