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Cyber Security Analyst

Fathom 4, LLC
Charleston, SC Full Time
POSTED ON 8/14/2026
AVAILABLE BEFORE 9/12/2026

ABOUT US:

Fathom 4 is the kind of defense services company you've always wanted to work with... and for. We strive to take care of all the people we support; our employees, our clients, our troops, and our community. We are in the people business and that principle is what drives our culture. We want to hire people for a career, not just a specific project.

If we concentrate on genuinely taking care of you, we know you will do what you can to care for the client. Fathom 4 will continue to grow if we ensure to build teams that feel the same way.

SECURITY CLEARANCE STATEMENT: This position requires a government security clearance; you must be a US Citizen for consideration.

RESPONSIBILITIES:

The Cyber Security Analyst shall protect and defend US Department of Defense (DoD) information and information systems by ensuring availability, integrity, authentication, confidentiality, and non-repudiation. This includes providing for restoration of information systems by incorporating protection, detection, and reaction capabilities. This position is part of a team of government staff, Fathom 4 employees, and subcontractors assigned to execute technical and operational cybersecurity capabilities.

TYPICAL DUTIES INCLUDE:

  • Analyze systems and networks to identify vulnerabilities and reduce breaches
  • Develop and implement scanning and certification plans for network control and maintenance
  • Document existing and proposed information architecture to convey compliance, problems, and solutions
  • Provide Cybersecurity related documentation (Plans of Action and Milestones (POA&M), Vulnerability Management Plan, Risk Management Framework (RMF) Implementation Plan, System Security Plan, and Contingency Plan)
  • Resolve incidents and breaches, mitigating problems, and informing key personnel
  • Develop and maintain RMF artifacts
  • Support interaction with federal government stakeholders and accrediting authorities
  • Analyze a system’s security posture via the use of automated tools and manual review of DoD Software Security Technical Implementation Guides (STIGs). Automated tools will include: Security Content Automation Protocol (SCAP) utilities, Nessus, and Assured Compliance Assessment Solution (ACAS)
  • Work with government personnel to ensure compliance with all current IT & cybersecurity policies, including those pertaining to Cyber Asset Reduction and Security (CARS).

REQUIRED QUALIFICATIONS AND EXPERIENCE

  • 3 years of experience with DoD operational information technology environments, system and network vulnerability analysis, risk assessment and risk mitigation analysis, security test and evaluation (ST&E), contingency planning, firewall policy, ports, and protocols.
  • B.S. in Computer Science, IT, Cybersecurity, or applicable Engineering discipline, with a GPA of 3.0 or better. Engineering and Science degrees must be from an ABET accredited institution to be considered valid by our government clients.
  • Experience in supporting development and implementation of a Cybersecurity plan for a new operational system resulting in an Authorization To Operate (ATO) decision.
  • Current Certifications allowing Cybersecurity IAT Level II access, including Security , etc.
  • A current Windows or Linux OS related certification.

CLEARANCE

  • Must be a US Citizen
  • Current DoD SECRET minimum security clearance and military base & facility access is critical and must be maintained throughout employment.

LOCATION

  • THE work location is ON-SITE in Charleston and N. Charleston, SC, with 0-5% travel expected

ADDITIONAL DESIRED SKILLS AND EXPERIENCE

  • Prior military experience a HUGE plus!
  • Windows 10, Windows Server 2010/2016 certs
  • Linux OS Variants to include, CentOS and RedHat
  • Adobe suite of tools and plug-ins (Air/Flash Player/Photoshop/Premier/Reader)
  • Networking protocols
  • Java/C/C /C#
  • Microsoft Office
  • Microsoft SQL Server
  • PostgreSQL

EQUAL OPPORTUNITY EMPLOYER:

Fathom 4. LLC. is an equal opportunity employer that does not discriminate in employment. All qualified applicants will receive consideration for employment without regard to their race, color, religion, sex, age, sexual orientation, gender identity, or national origin, disability or protected veteran status.


Salary.com Estimation for Cyber Security Analyst in Charleston, SC
$97,016 to $121,220
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