Tyfanie Enyart
Suffolk
Summary
Cybersecurity and information assurance professional with 10+ years of IT experience, including 6 years specializing in Risk Management Framework (RMF), security control assessments, continuous monitoring, and ATO package development. Proven expertise in eMASS, vulnerability management, system administration, and documentation for DoD. Adept at improving security posture, identifying risks, and collaborating with cross‑functional teams in mission‑critical settings. Skilled in Windows, Linux, GCCS, Windows Server, Visio, HTML, CSS, and project management.
Overview
10
10
years of professional experience
1
1
Certification
Work History
Information Systems Security Manager
General Dynamics Information Technology
01.2026 - Current
- Led RMF lifecycle activities, ensuring effective categorization and continuous monitoring.
- Advise leadership on cybersecurity risk, authorization status, and compliance posture.
- Reviewed and approved SSPs, POA&Ms, RARs, and continuous monitoring artifacts for compliance.
- Review and approve SSPs, POA&Ms, RARs, and continuous monitoring artifacts.
- Direct vulnerability management and ensure timely mitigation tracking.
- Oversee eMASS accuracy, workflow progression, and ATO package readiness.
- Coordinated with system owners and engineers to seamlessly integrate security requirements.
- Lead internal/external audits, evidence collection, and remediation planning.
- Mentor ISSOs, assessors, and administrators on RMF best practices.
Information Systems Security Officer
General Dynamics Information Technology
09.2024 - 01.2026
- Implemented and enforced security policies and methodologies for DoD systems.
- Prepared comprehensive documentation to facilitate successful audits, assessments, and security initiatives.
- Prepared documentation supporting audits, assessments, and security initiatives.
- Managed configuration control for security relevant hardware/software.
- Developed and maintained C&A documentation aligned with DoD policies.
- Maintained robust operational security posture and updated IA documentation to align with evolving requirements.
- Conducted SCAs and communicated complex security concepts to stakeholders.
- Validated implementation evidence, assessment results, and inheritance.
- Ensured audit-ready packages while addressing and resolving workflow bottlenecks for streamlined processes.
Information Systems Security Officer / Information Systems Security Engineer (ISSO/ISSE)
Reliant Technologies LLC
06.2021 - 09.2024
- Executed full RMF lifecycle, drafting artifacts that facilitated ATO achievement.
- Authored SSPs, POA&Ms, PIAs, risk assessments, and supporting documentation.
- Conducted eMASS data analysis and submitted ATO packages.
- Performed vulnerability management using ACAS, STIGs, and CKLs.
- Maintained boundary diagrams and inventories, ensuring up-to-date PPS documentation.
- Supported contingency and incident response planning, conducting tests to validate effectiveness.
- Supported contingency and incident response planning and testing.
- Participated in working groups and communicated system risk posture.
System Administrator
Phantom Eagle
03.2019 - 06.2021
- Maintained servers and desktop systems, ensuring operational reliability and security.
- Maintained servers, imaging servers, and desktop systems.
- Applied OS updates, patches, and configuration changes.
- Managed group policies, user accounts, and system audits.
- Supported DT&E and OT&E for C2 systems, facilitating successful technology evaluations.
- Provided expertise in AOC WS C2 and imagery systems to support operational functions.
- Installed 10.1 C2 systems and resolved PowerShell‑related installation issues.
- Assisted in the implementation of JIRA Service Desk to improve ticket management.
- Maintained four full AOC WS baselines supporting multi‑tenant operations.
System Administrator III
Chenega
12.2018 - 03.2019
- Maintained servers and desktops, ensuring optimal performance and reliability.
- Performed OS updates, patches, and configuration changes.
- Managed user accounts and group administration, enhancing access control and security protocols.
- Conducted data backups and file restoration.
- Automated services and improved procedures through scripting.
- Monitored system workloads and recommended improvements.
- Administered network security and access control, implementing antivirus solutions and remote patching strategies.
System Administrator
Bcause
08.2018 - 11.2018
- Monitored mining environment for power, thermal, and acoustic performance to ensure optimal operations.
- Assembled and configured mining server components and performed continuous maintenance.
- Managed inventory and tracked equipment to maintain accurate records and availability.
- Assembled and configured mining server components.
- Troubleshot mining machines and networking components to resolve issues and minimize downtime.
Help Desk Support Technician
Unisys
03.2017 - 04.2018
- Managed four client accounts, achieving high service satisfaction ratings.
- Troubleshot LAN/WAN connectivity, VPN, and remote access issues.
- Trained new personnel, enhancing support capabilities for Tier 3 teams.
- Managed four client accounts and ensured service satisfaction.
- Trained new personnel and supported Tier 3 teams.
- Documented customer issues and resolutions to improve knowledge base and troubleshooting efficiency.
Technical Support Specialist
TaxSlayer
11.2016 - 03.2017
- Provided Tier 1 & Tier 2 support for 30+ clients daily.
- Configured computers and networks, resolving issues with printers, scanners, and AV/firewall systems.
- Installed TaxSlayer Pro software on client systems.
- Installed and maintained TaxSlayer Pro software, ensuring seamless operation for clients.
- Reported bugs and validated fixes with development/QA teams.
Help Desk Support
TaxSlayer
10.2015 - 03.2016
- Managed 30+ inbound calls daily, delivering multi-channel support to resolve user issues efficiently.
- Facilitated TCP/IP, DNS, and connectivity troubleshooting, ensuring minimal downtime for users.
- Performed password resets and account recovery.
- Resolved browser compatibility and web application performance issues to enhance user experience.
- Supported browser compatibility and web application performance issues.
Education
Master of Science - Cybersecurity
Old Dominion University
Norfolk, VA08-2025
Bachelor of Science - Information Technology
Kaplan University
Davenport, IA04-2015
Skills
- Risk management
- Security policies
- Vulnerability management
- Compliance documentation
- Continuous monitoring
- Cybersecurity auditing
Certification
- CompTIA Security + Certification
- Certified Information Security Manager (CISM), 04/17/26
Security Clearance
Top Secret SCI
Timeline
Information Systems Security Manager
General Dynamics Information Technology
01.2026 - Current
Information Systems Security Officer
General Dynamics Information Technology
09.2024 - 01.2026
Information Systems Security Officer / Information Systems Security Engineer (ISSO/ISSE)
Reliant Technologies LLC
06.2021 - 09.2024
System Administrator
Phantom Eagle
03.2019 - 06.2021
System Administrator III
Chenega
12.2018 - 03.2019
System Administrator
Bcause
08.2018 - 11.2018
Help Desk Support Technician
Unisys
03.2017 - 04.2018
Technical Support Specialist
TaxSlayer
11.2016 - 03.2017
Help Desk Support
TaxSlayer
10.2015 - 03.2016
Master of Science - Cybersecurity
Old Dominion University
Bachelor of Science - Information Technology
Kaplan University