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Cyber Counterintelligence Jobs in California (NOW HIRING)

Cyber System Security Engineer

El Segundo, CA ยท On-site

$61 - $74.75/hr

Willingness to submit to a Counterintelligence polygraph. Physical Requirements * Must be willing to travel within the organizational Area of Responsibility (AOR), including both air and ground ...

Cyber System Security Engineer

El Segundo, CA ยท On-site

$61 - $74.75/hr

Willingness to submit to a Counterintelligence polygraph. Physical Requirements * Must be willing to travel within the organizational Area of Responsibility (AOR), including both air and ground ...

Cyber System Security Engineer

El Segundo, CA

$141K - $236K/yr

  • Medical

  • Life

  • Retirement

  • PTO

Willingness to submit to a Counterintelligence polygraph. Physical Requirements * Must be willing to travel within the organizational Area of Responsibility (AOR), including both air and ground ...

Security Specialist (COMSEC) Jobs

El Segundo, CA ยท On-site

  • Medical

  • Retirement

  • PTO

... cyber systems for defense, civil and commercial customers. When you join our team, you'll be part ... Willingness to submit to a Counterintelligence polygraph * Experience with the following NSA Type-I ...

New

FSO/ISSM

Oxnard, CA ยท On-site

Be the direct liaison for the facility with the Defense Counterintelligence and Security Agency ... Familiarity with cyber incident response, including preservation, containment, and eradication.

Be the direct liaison for the facility with the Defense Counterintelligence and Security Agency ... Familiarity with cyber incident response, including preservation, containment, and eradication.

Showing results 21-40

Cyber Counterintelligence information

See California salary details

$33.6K

$111.4K

$173.7K

How much do cyber counterintelligence jobs pay per year?

As of Aug 16, 2026, the average yearly pay for cyber counterintelligence in California is $111,393.00, according to ZipRecruiter salary data. Most workers in this role earn between $90,300.00 and $128,300.00 per year, depending on experience, location, and employer.

What is a cyber counterintelligence?

A Cyber Counterintelligence job focuses on identifying, preventing, and mitigating cyber threats posed by foreign intelligence entities, hackers, and insider threats. Professionals in this field analyze cyber activities, conduct investigations, and develop strategies to protect sensitive data and systems from espionage or sabotage. They work closely with cybersecurity teams, law enforcement, and government agencies to counter threats. This role requires expertise in threat intelligence, digital forensics, and security operations.

What does a cyber counterintelligence do?

In a Cyber Counterintelligence role, your daily responsibilities often include monitoring network activity for suspicious behavior, analyzing digital evidence, responding to potential internal and external cyber threats, and preparing intelligence reports. You may also collaborate closely with IT security teams, law enforcement, or government agencies to coordinate investigations and share critical information. The work can involve both proactive threat hunting and reactive incident response, as well as developing strategies to counteract adversarial tactics. This dynamic environment requires adaptability, vigilance, and strong attention to detail to effectively safeguard sensitive information.

What are the key skills and qualifications needed to thrive in cyber counterintelligence?

To thrive as a Cyber Counterintelligence professional, you need expertise in cybersecurity principles, digital forensics, threat analysis, and often a background in criminal justice or intelligence. Familiarity with tools like SIEM platforms (e.g., Splunk), intrusion detection systems, malware analysis labs, and certifications such as CISSP, CEH, or Security+ are highly valued. Strong analytical thinking, problem-solving, and the ability to communicate complex findings clearly are key soft skills for this role. These capabilities are essential for proactively identifying, investigating, and mitigating cyber threats from hostile actors to protect organizational or national security interests.

What are the most commonly searched types of Cyber Counterintelligence jobs in California?

The most popular types of Cyber Counterintelligence jobs in California are:

What are popular job titles related to Cyber Counterintelligence jobs in California?

For Cyber Counterintelligence jobs in California, the most frequently searched job titles are:

What job categories do people searching Cyber Counterintelligence jobs in California look for?

The top searched job categories for Cyber Counterintelligence jobs in California are:

Infographic showing various Cyber Counterintelligence job openings in California as of August 2026, with employment types broken down into 91% Full Time, 5% Part Time, 2% Temporary, and 2% Contract. Highlights an 88% Physical, 4% Hybrid, and 8% Remote job distribution, with an average salary of $111,393 per year, or $53.6 per hour.

Information System Security Officer (ISSO)

Castelion Corporation

Torrance, CA โ€ข On-site

Full-time

Medical, Dental, Vision, PTO

Re-posted 24 days ago


Job description

About Castelion

Castelion is bringing a new approach to defense development and production: one that focuses on short, iterative design cycles, rapid testing in development, and modern commercial manufacturing strategies for production at scale. We're designing, building, and testing next generation long range strike weapons systems to give America and its Allies a definitive edge and deter future conflicts.

Information System Security Officer (ISSO)

Castelion is seeking a classified cyber assurance practitioner to assist the ISSM in driving the Castelion classified cyber assurance program forward. The program focuses on three major areas:

  • Assessment: Assessing the state of the classified cyber assurance program against industry standards, requirements (contractual and regulatory), and organizational needs.
  • Governance: Managing and spearheading governance of the classified cyber assurance program to interpret and drive implementation of industry standards, requirements (contractual and regulatory), and organizational needs.
  • Communications: Be "the face" of classified cyber assurance program to both internal and external stakeholders (e.g. customer, regulatory, government and supplier entities).

The successful candidate will assist in driving the classified assurance team to ensure Castelion delivers on customer requirements, reduces risk, and ensures mission success. We are a fast paced, multi-tasking, highly dynamic work environment with high degrees of autonomy and accountability.

Responsibilities

  • Assist the ISSM in the completion of the RMF A&A lifecycle process for assigned Castelion classified information systems
  • Ensure compliance with existing regulatory, policy, and contractual requirements as they pertain to Castelion classified information systems
  • Able to identify, triage, and implement new regulatory and contractual requirements into both broad and specific applications
  • Keep apprised of emerging community practices, risks, and threats
  • Plan, prepare for, schedule and coordinate audits, assessments, and tests
  • Identify, evaluate, and select various automation, assessment, and management tool sets to drive effectiveness and efficiencies
  • Provide advanced knowledge of Nessus, Splunk and Security Center tools
  • Provide advanced knowledge of Service Now (SNOW), eMASS, and other GRC tools
  • Build and maintain positive relationships with internal stakeholders, contractual partners, and government customers
  • Successfully further Castelion objectives and initiatives
  • Responsible for auditing all classified information systems
  • Deliver user briefings and agreements in accordance with government requirements
  • Create and maintain data transfer/assured file transfer policies and logs
  • Assist ISSM in record maintenance of all classified network equipment

Basic Qualifications

  • Bachelor's degree; OR 3+ years of experience managing cyber assurance for classified computer systems/networks in lieu of a degree
  • 1+ years of experience in cyber assurance

Preferred Skills and Experience

  • Demonstrated experience with NRO A&A processes and the JSIG A&A processes
  • Subject matter expertise in the RMF 7 step process
  • Experience working within highly technical and demanding teams and environments
  • Experience with obtaining ATO(s) for networks, weapon systems, and satellite systems
  • Demonstrated experience with COMSEC procedures and practices
  • Exceptional written and verbal communication skills
  • Exceptional organizational skills
  • Demonstrated project management skills, and continued track record of getting things done quickly with high quality
  • Demonstrated record for providing unique and/or novel solutions
  • Demonstrated record of integrating with I.T. and product security functions
  • Ability to perform within mission and time constrained environments
  • High comfort with and acceptance of performing individual contributor functions/tasks

Additional Requirements

  • Must be able to work extended hours and/or weekends as needed
  • Ability to travel both locally and domestically
  • DoD IAM Level III eligibility based on active certifications
  • Counterintelligence (CI) scope polygraph (full-scope or lifestyle also acceptable), or ability to successfully complete
  • This position is based in Torrance, CA and requires being onsite - remote work not considered
  • Active Top Secret clearance with SCI eligibility.

Leadership Qualities

  • Bias to Action and Creative Problem Solving. Desire and experience questioning assumptions in ways that lead to break through ideas that are ultimately implemented. Successfully bring in applicable processes/concepts/materials from other industries to achieve efficiency gains. Ability to personally resolve minor issues in development without requiring significant support.
  • High Commitment, High Initiative. A successful candidate will have a genuine passion for Castelion's mission and consistently look for ways to contribute to the company's technical goals and prevent hardware blockers. Ability to work in a fast paced, autonomously driven, and demanding atmosphere. Strong sense of accountability and integrity.
  • Clear Communicator. Proactively communicates blockers. Trusted in previous roles to be voice of company with regulators, suppliers, gate keepers and customers. Capable of tactfully managing relationships with stakeholders to achieve company-desired outcomes without compromising relationships. Emails, IMs and verbal interactions are logical, drive clarity, and detailed enough to eliminate ambiguity.

ITAR Requirements

  • To conform to U.S. Government export regulations, applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (aka green card holder), (iii) Refugee under 8 U.S.C. § 1157, or (iv) Asylee under 8 U.S.C. § 1158, or be eligible to obtain the required authorizations from the U.S. Department of State.

Employment with Castelion is governed on the basis of competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status.

All employees are granted long-term stock incentives as part of their employment as Castelion. All employees receive access to comprehensive medical, vision, and dental insurance, and the company offers four weeks of paid time off per year.