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Cyber Security Analyst​/ISSO - Classified Systems; On-site

Job in Los Angeles, Los Angeles County, California, 90079, USA
Listing for: Areté
Full Time position
Listed on 2026-06-27
Job specializations:
  • IT/Tech
    Cybersecurity, Information Security
Salary/Wage Range or Industry Benchmark: 80000 USD Yearly USD 80000.00 YEAR
Job Description & How to Apply Below
Position: Cyber Security Analyst/ISSO - Classified Systems (On-site)

If you are unable to complete this application due to a disability, contact this employer to ask for an accommodation or an alternative application process.

Cyber Security Analyst/ISSO

Full Time Northridge, CA, US

13 days ago Requisition

Salary Range: $80,000.00 To $ Annually

AtAreté,weareontheforefrontofutilizinginnovativesolutions,withgreatmindsfromallbackgrounds,tohelpsolve the nation’s most complex security challenges. We strive for an inclusive, collaborative team environment that approaches differences as opportunities for innovation and excellence. As an employee-owned company, we foster an atmosphere that propels diverse career opportunities and professional growth.

Discover your future with us.

Areté is immediately seeking a full-time Cyber Security Analyst/Information Systems Security Officer to work primarily in our Northridge, CAfacility. The selected candidate will have and maintain a Top-Secret security clearance with SCI access, including a CI polygraph. The candidate will collaborate with other Cyber Security and IT staff members, travel occasionally, and provide some after-hours support. The candidate will also support a variety of information systems at varying levels of complexity on the classified networks.This

position is an on-site position, hybrid and remote options are not available.

Primary responsibilities:

  • Perform duties as ISSO in accordance with JSIG, RMF, and NIST 800-53.
  • Develop, maintain, and update security authorization documentation including System Security Plans (SSPs), Plan of Actions and Milestones (POA&M), SCTMs, Con Mon Reports, and audit logs.
  • Conduct security control implementation, validation, and assessment activities.
  • Perform and document system audits and risk analysis.
  • Manage and execute Continuous Monitoring (Con Mon) tasks to ensure compliance throughout the system lifecycle.
  • Support configuration management (CM) processes with a minimum of 1-2 years direct CM experience, including review and documentation of system changes, baseline management, and change control.
  • Provide incident response support, including investigation, reporting, and remediation of security events.
  • Support preparation for internal and external inspections and assessments.
  • Support ISSM with other duties as assigned.

We have an impressive range of benefits, programs, and perks that we offer:

  • Life and Long-Term Disability (LTD)
  • Vision Reimbursement
  • Fitness Reimbursement
  • Company-funded 5% contribution to your 401(k) retirement plan
  • Company-funded 5% contribution to your Employee Stock Ownership Plan
  • Continuing Education Assistance

Work-Life Balance:

  • Flexible Scheduling
  • Paid Time Off (PTO)
  • Paid Parental and Bereavement Leave

What We Value:

  • Creativity and innovation in solving challenges
  • Integrity and responsibility in all actions
  • Collaboration across teams and specialties
  • Responsiveness in fast-paced environments
  • Passion for national security and excellence

Experiences and Background We Look For (Required Skills):

  • Active Top Secret security clearance with ability to obtain a CI polygraph.
  • 1-2 years of experience performing ISSO or equivalent cybersecurity duties for classified systems.
  • Demonstrated experience with JSIG, RMF, and NIST 800-53 security controls.
  • Hands-on experience in security auditing, continuous monitoring, and documentation of control implementation.
  • Current IAT Level II Security Certification or higher (Security+, CASP, CySA+, CISSP, GSEC) or ability to obtain within 3 months of the start date.
  • Must have solid technical knowledge on how Windows and Server operating systems arehardened.
  • Experience with common information system Cyber Security tools, technologies, and STIGs (Nessus/ACAS, SCAP Compliance Checker, STIG Viewer, Microsoft Group Policy, etc.).
  • Strong interpersonal skills, technical writing skills, and the ability to work autonomously and on a team.
  • Strong written communication skills and the ability to document/diagram information systems and procedures.
  • Must be able to lift 25 pounds.

Nice to Have (Preferred Skills):

  • Knowledge of the Risk Management Framework is a plus;
  • Experience with Security Directives, Policies, Publications and Regulations including but not limited to the NIST 800-171,…
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