Information System Security Officer

ECS; Arlington (VA); On-site; USD 120,000 - 165,000; Full time

Job summary

Everforth ECS is seeking a mid-level Information System Security Officer (ISSO) to secure a DoD VDI environment and support operations in Arlington, VA and Fairfax, VA. The position requires 3–5 years of cybersecurity experience, a DoD clearance or eligibility, and hands-on work with RMF, A&A, and vulnerability management.

The ISSO will monitor security, coordinate with stakeholders, maintain documentation, and help sustain customer projects using eMASS, ACAS, and HBSS.

Qualifications

• Must be a U.S. citizen with a DoD clearance or eligibility.
• Bachelor's degree or equivalent with 3–5 years in cybersecurity.
• Experience with DoD cyber frameworks and RMF.
• Proven ability to work independently and meet deadlines.
• Strong communication and stakeholder interaction skills.

Responsibilities

• Lead A&A, configuration management, continuous monitoring, and incident response.
• Support eMASS-based customer projects and tooling.
• Apply RMF and STIGs to secure environments.
• Coordinate with internal and external stakeholders on security compliance.
• Provide knowledge transfer to teammates and clients.
• Work on Arlington, VA with local trips to Fairfax, VA.

Skills

U.S. Citizenship

Bachelor's Degree in related field

3+ years Cybersecurity Experience

Active DoD Secret clearance

Ability to obtain TS/SCI

RMF/DoD guidance familiarity

Experience with eMASS/ACAS/HBSS

Education

Bachelor's Degree in related field

Tools

eMASS

ACAS

HBSS/ESS

DoD RMF

STIGs

Job description

Job Description

Everforth ECS is seeking an Information System Security Officer (ISSO) to work onsite in our Arlington, VA and Fairfax, VA corporate offices.

Job Description

Everforth ECS Federal has an immediate opening for a mid-level Information System Security Officer (ISSO) to ensure that a Department of Defense (DoD) virtual desktop infrastructure (VDI) environment remains secure and functional. Must have at least 3 to 5 years’ experience (pending education requirements) performing a variety of cyber security related tasks, including continuous monitoring, vulnerability remediation, and the development and implementation of standards and procedures. The ideal candidate will have a technical background; experience with heterogeneous environments; and the ability to interface with all levels from end-users to senior management.

Candidates must be able to take ownership of tasks and deadlines; work without supervision; commit to high-quality results; and provide common sense solutions. In addition, candidates should be adaptable, detail-oriented, and have well-developed written, verbal, and interpersonal skills.

Primary Duties

• Assist and lead various cybersecurity activities such as Assessment and Authorization (A&A), Configuration Management, Continuous Monitoring, and Incident Response.
• Assist with the Management and Sustainment of customer projects in the Enterprise Mission Assurance Support Service (eMASS) Toolset.
• Apply knowledge, tools, policy, and procedures to implement, monitor, and manage cybersecurity risk in production, test, and development environments.
• Utilize Assured Compliance Assessment Solution (ACAS), Electronic Security System (ESS) - formally Host-Based Security System (HBSS), and other tools to monitor, detect, and analyze vulnerabilities.
• Coordinate with internal and external stakeholders concerning security compliance.
• Support and provide knowledge transfer to team members and clients.
• Other duties as needed.
• The job is located in Arlington VA, with occasional local trips to our Fairfax, VA location.

Salary Range: $120,000-165,000

Required Skills

• Must be a US Citizen
• Must have a Bachelor's Degree in a related field; four (4) years relevant experience in lieu of a degree
• 3+ years of Cybersecurity Experience
• Active DoD Secret clearance with the ability to obtain TS/SCI
• Capable of understanding the system and its environment of operation
• Experience utilizing Enterprise Mission Assurance Support Service (eMASS), ACAS, ESS/HBSS, DoD Risk Management Framework (RMF), Defense Counterintelligence and Security Agency (DCSA) Assessment and Authorization Guide (DAAG), Information Assurance Vulnerability Management (IAVM) alerts, Secure Technical Implementation Guides (STIGs), etc.
• Have an active Security+ (Plus) certification or equivalent certification that satisfies DoD 8140 requirements
• Able to obtain CISSP, CISM, CASP+ CE, CAP, GSLC, or CCISO

Desired Skills

• Active Top Secret clearance
• A track record of self-improvement and continuous learning
• Familiarity with Security Content Automation Protocol (SCAP)
• A working knowledge of technologies like:
• Citrix Workspace and Networking
• Microsoft networking and products (group policy, profiles, SQL, etc.)
• Next Generation Firewalls and layer 3 switches (Fortinet and Cisco)
• Nutanix Acropolis hypervisor

#EverforthECS1

ECS Federal LLC is an equal opportunity employer and does not discriminate or allow discrimination on the basis any characteristic protected by law. All qualified applicants will receive consideration for employment without regard to disability, status as a protected veteran or any other status protected by applicable federal, state, or local jurisdiction law.

Everforth ECS is the federal segment of Everforth, a $4B global organization with over 10,000 employees. Our nearly 3,500 professionals deliver advanced technology solutions in data and AI, cybersecurity, and enterprise transformation, serving defense, intelligence, and federal civilian agencies.

Our work powers mission-critical outcomes, strengthens technology partnerships, and creates meaningful opportunities for our people. We are defined by a commitment to excellence in delivery, a culture of innovation, and an environment where talent can thrive and grow.

We Value

• Attracting and developing top talent and high-performing teams
• Fostering a culture that is engaging, accountable, and mission-driven

Meet the challenge. Make a difference with Everforth ECS!