Keith Thielemann
Lexington,KY
Summary
Cleared Cyber Security Analyst, with 7 years of experience in cyber operations (4 Department of Energy/3 Department of Defense) and 8 years of experience with Department of Defense SOF intelligence collection, analysis and dissemination. Maintains an active Top Secret SCI Security Clearance. Skilled in fast-paced cybersecurity operations, contingency and incident response planning, data and loss prevention, threat management and vulnerability patching, and leading mission-critical ICS/GSS security projects.
Overview
9
9
years of professional experience
Work History
Cyber Security Analyst I
Enterprise Technical Assistance Services (ETAS)
10.2025 - Current
- Serve as one of two Falcon Complete Administrators supporting four enterprise networks, leading threat hunting operations and assisting in triage and incident response across all sites, while acting as the primary CrowdStrike Real Time Responder and Investigator for my assigned network.
- Act as the enterprise SME for Cisco DLP, WSA, ESA, and SMA solutions, driving data loss prevention, secure email/web gateway policy enforcement, and cross-site security alignment to maintain compliance with DOE and internal cybersecurity standards.
- Revitalized and strengthened the Cyber Security Program by revising, updating, and standardizing all Policies, Procedures, and Plans, leading the successful transition from NIST 800-53 Rev. 4 to Rev. 5, and directly contributing to a 0-finding DOE Enterprise Assessment and achievement of C-ATO authorization.
- Function as the ICS Scanning SME and vulnerability/patching coordinator for primary site operations; leverage tools such as Varonis, Splunk, and Discovery Attender to detect cleartext credentials, strengthen network security posture, and enhance audit readiness.
Cyber Security Analyst
Leidos
06.2021 - 10.2025
- Reviewed violations of computer security procedures and developed mitigation plans.
- Participated in creation of device hardening techniques and protocols; updated plans and policies to meet DOE Standards.
- Monitored and remediated alerts on Crowdstrike Falcon.
- Monitored and updated blocked websites to restrict access across the Network.
Deployed Intelligence Analyst
20th Special Forces Group
10.2021 - 05.2022
- Created useful and timely intelligence products to support field operations.
- Screened and interpreted all-source intelligence information.
- Disseminate warning and threat analysis and brief executive and senior management on actionable intelligence contingencies on a daily basis.
- Created intelligence presentations in order to brief Department of Defense officials as required.
Cyber Operations Planner
Saic - Science Applications International Corporation
03.2020 - 06.2021
- Monitor and review strategies, doctrine, policies, and directives to ensure compliance and contribute to the development of exercise scenarios and exercise operational plans
- Served as the SME for command level projects and cyber security plans at the service level, as well as provide input during briefings at the O7, O8 and O9 level, transitioning concepts to execution, and assisting in the coordination of operational planning in support of training, exercises, and operations
- Provide input for the development of TTPs, CONOPs, COAs and provide input to address shortfalls, prioritize and validate requirements, and to modify development planning efforts
- Serve in a joint environment monitoring guidance from USCYBERCOM to ensure compliance, as well as coordinating planning efforts across Marine Forces Cyberspace Command
Infrastructure Watch Officer
U.S. Army, 780th Military Intelligence Brigade
01.2019 - 02.2020
- Formerly deployed in a classified environment supporting U.S. Department of Defense's cyber network
- Managed infrastructure resources as required for operations in support of approved CONOPS and CTOs and ensured configuration of infrastructure in support of OCO and DCO
- Maintained positive communications with JMOC Tier-1, Tier-2, Mission Commanders and JMOC SWO
- Presented daily briefings to JMOC Senior Leadership, at the O6 level, recapping daily, weekly and future operations
Intelligence Analyst
U.S. Army, 20th Special Forces Group MICO
09.2016 - Current
- Analyzed all-source intelligence documents and briefed senior military leaders on emerging threats
- Screened and interpreted all-source intelligence and created useful intelligence products to support field operations
- Aided in the creation of training plans for junior enlisted
- Attended and completed Army Airborne school in 2017
Education
Bachelor of Science - Criminal Justice
Eastern Kentucky University
Richmond, KY05.2016
Associate of Science - Intelligence Operations
Cochise College
Douglas, AZ12.2017
University Certificate - Intelligence Studies
Eastern Kentucky University
Richmond, KY05.2016
M.O.S. Certification - All-Source Intelligence Production
U.S. Army Intelligence Analyst School
Fort Huachuca, AZ07.2017
Skills
- Ability to operate in a high tempo environment
- Experience with Crowdstrike
- Some experience with Splunk
- Cisco Web/Email Appliance Experience
- Effective problem solver
- Excellent communication skills
- Produce and deliver intelligence reports
- Exceptional research ability
- Able to handle multiple projects
- Timely project completion
Additional Information
- Project Management Professional (PMP), PMI, (Pursuing)
- CompTIA Cybersecurity Analyst (CySA+), CompTIA, (Pursuing)
- Security+ (SEC+), CompTIA, (Pursuing)
- Certified SAFe Agilist, Scaled Agile, 2020
- Open Source Analytic Tools and Training (OS302), INSCOM, 2019
- Basic Open Source Intelligence Course (OS301), INSCOM, 2019
- Red Hat System Administration I, Red Hat, 2019
- RockNSM Foundations, Perched, 2019
- Certified Ethical Hacker (CEH), EC-Council, 2018
- Implementing Critical Infrastructure Security and Resilience, FEMA, 2016
Accomplishments
- Successfully trained and supervised personnel
- Army Achievement Medal, 2020
- Graduated Army Airborne School, 2017
- Earned the Army National Defense Service Medal, 2016
Timeline
Cyber Security Analyst I
Enterprise Technical Assistance Services (ETAS)
10.2025 - Current
Deployed Intelligence Analyst
20th Special Forces Group
10.2021 - 05.2022
Cyber Security Analyst
Leidos
06.2021 - 10.2025
Cyber Operations Planner
Saic - Science Applications International Corporation
03.2020 - 06.2021
Infrastructure Watch Officer
U.S. Army, 780th Military Intelligence Brigade
01.2019 - 02.2020
Intelligence Analyst
U.S. Army, 20th Special Forces Group MICO
09.2016 - Current
University Certificate - Intelligence Studies
Eastern Kentucky University
M.O.S. Certification - All-Source Intelligence Production
U.S. Army Intelligence Analyst School
Bachelor of Science - Criminal Justice
Eastern Kentucky University
Associate of Science - Intelligence Operations
Cochise College
Similar Profiles
Eddie MillerEddie Miller
Project Manager at ETASProject Manager at ETAS
CHRISTOPHER LUPINICHRISTOPHER LUPINI
Senior Cybersecurity Consultant at ETASSenior Cybersecurity Consultant at ETAS
Ghaith MessaoudiGhaith Messaoudi
DevOps Engineer at ETASDevOps Engineer at ETAS
Thailand NealyThailand Nealy
Patient Clerical Assistant at University Of Kentucky Medical CenterPatient Clerical Assistant at University Of Kentucky Medical Center
Nathalie KezaNathalie Keza
Patient Service Representative at Afton Community DayPatient Service Representative at Afton Community Day