Information Systems Security Officer Jobs in California
Information systems security officer jobs in California represent one of the most active markets in the country, concentrated in defense contracting, aerospace, financial services, and state and federal government agencies across San Diego, the greater Los Angeles area, and the Sacramento region. Major employers with deep California roots in this field include Northrop Grumman, Raytheon Technologies, and Lockheed Martin, alongside large state agencies and financial institutions. The most sought-after specialties are risk management framework compliance, cloud security architecture, and systems accreditation under federal standards. See the openings below and apply to the ones that match your experience.
Find JobsOverview
Showing 5 of 13+ Information Systems Security Officer jobs
Spacecraft represent the most pressing unmet need across the entire aerospace industry. As more launch vehicles come online and the cost to orbit decreases, more companies launching payloads to space continue to emerge.
For the first time in history, this influx of payload companies combined with reduced launch costs has resulted in a massive increase in need for commercial spacecraft platforms, known as satellite buses. These buses hold the payloads of our customers and are flown on launch vehicles.
Apex manufactures these satellite buses at scale using a combination of software, vertical integration, and hardware that is designed for manufacturing. Our spacecraft enable the future of society: ranging from earth observation to communications and more.
We’d love for you to join us on our mission of providing humankind access to the galaxy beyond our planet.
About the Role
The primary focus is NIST SP 800-171 and CMMC Level 2. This role will also support ATO activities, SOC 2 Type II, ISO-aligned compliance work, and other customer security requirements as Apex grows.
Responsibilities
- Serve as the security point of contact for operations and keep teams informed on the current cyber posture.
- Work with the Cybersecurity team to assess requirements, risk findings, and due dates for contracts.
- Maintain the SSP, system inventory, policies, procedures, and supporting evidence for our CUI environment.
- Track NIST SP 800-171 and CMMC Level 2 implementation at the specific artifact level.
- Support ATO and RMF activities including creating and updating security documentation and writing POA&Ms with target completion dates.
- Validate evidence from our cybersecurity suite including CrowdStrike, Palo Alto, Tenable, and Jira.
- Lead vulnerability and configuration remediation with system owners; make sure ownership, expectations, and target dates are clear.
- Lead security reviews on privileged accounts, terminated users, vulnerability results, and other security requests from the program.
Requirements
- Active TS/SCI clearance required
- US Citizenship required
- 3 or more years of experience as an ISSO, security compliance analyst, security engineer, system administrator with security responsibilities, or a similar role
- Strong working knowledge of NIST SP 800-171, CMMC Level 2, POA&M management, control evidence, and assessment preparation
- Experience maintaining an SSP or equivalent system security documentation and supporting formal security reviews
- Ability to understand and validate evidence from identity, cloud, endpoint, network, vulnerability, and logging platforms
- Strong follow-through across multiple teams and the ability to write security documentation that clearly reflects what is actually implemented
Preferred Qualifications
- Experience with ATO, RMF, NIST SP 800-53, SOC 2 Type II, ISO 27001, DFARS 252.204-7012, SPRS, STIGs, or classified system security
- Experience with Microsoft GCC High, CrowdStrike, Palo Alto, Tenable, AWS GovCloud, Entra ID, or similar enterprise security platforms
- Security+, CGRC, CISSP, or a comparable security certification
- Experience supporting aerospace, defense, national security, ATO, RMF, or other regulated technical environments
Why Join Apex?
Apex believes in creating a work environment that you look forward to embracing every day. Our employees love working at Apex, and we want you to love it too. We're a fast-growing startup that has raised more than $500M in funding, and we invest heavily in our people from day one.
What We Offer For Full-time Employees:
Shared upside: Receive equity in Apex, letting you benefit from the work you create
Best-in-class healthcare: 100% company-paid medical, dental, and vision for you and your dependents, plus $100k life insurance at no cost
Comprehensive PTO package to reset and recharge - starting at 15 days vacation, growing to 20+ days annually, plus 10 paid holidays
Competitive 401(k) plan with generous matching - 100% match on first 3%, 50% on next 2%
8 weeks paid parental leave plus childcare reimbursement up to $350/day for work-related travel
Daily catered lunch and unlimited snacks to keep you fueled throughout the day
Vibrant community: Monthly office socials, pickleball tournaments, run club, and gatherings for you and your family
Your dream desk setup and all the tools you need to be your most productive self
World-class Playa Vista office with the benefit of in-person collaboration with amazing coworkers and flexibility to integrate work and life
Real impact opportunity: Work alongside experts from aerospace, new space, and other cutting-edge industries to make a lasting difference
Ready to join a team where your contributions matter and your future is bright? Let's build something extraordinary together.
Equal Opportunity Employer
Apex Technology, Inc. is an Equal Opportunity Employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. Candidates and employees are always evaluated based on merit, qualifications, and performance. We will never discriminate on the basis of race, color, 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.
Compensation Range: $104K - $143K
Spacecraft represent the most pressing unmet need across the entire aerospace industry. As more launch vehicles come online and the cost to orbit decreases, more companies launching payloads to space continue to emerge.
For the first time in history, this influx of payload companies combined with reduced launch costs has resulted in a massive increase in need for commercial spacecraft platforms, known as satellite buses. These buses hold the payloads of our customers and are flown on launch vehicles.
Apex manufactures these satellite buses at scale using a combination of software, vertical integration, and hardware that is designed for manufacturing. Our spacecraft enable the future of society: ranging from earth observation to communications and more.
We’d love for you to join us on our mission of providing humankind access to the galaxy beyond our planet.
About the Role
The primary focus is NIST SP 800-171 and CMMC Level 2. This role will also support ATO activities, SOC 2 Type II, ISO-aligned compliance work, and other customer security requirements as Apex grows.
Responsibilities
- Serve as the security point of contact for operations and keep teams informed on the current cyber posture.
- Work with the Cybersecurity team to assess requirements, risk findings, and due dates for contracts.
- Maintain the SSP, system inventory, policies, procedures, and supporting evidence for our CUI environment.
- Track NIST SP 800-171 and CMMC Level 2 implementation at the specific artifact level.
- Support ATO and RMF activities including creating and updating security documentation and writing POA&Ms with target completion dates.
- Validate evidence from our cybersecurity suite including CrowdStrike, Palo Alto, Tenable, and Jira.
- Lead vulnerability and configuration remediation with system owners; make sure ownership, expectations, and target dates are clear.
- Lead security reviews on privileged accounts, terminated users, vulnerability results, and other security requests from the program.
Requirements
- Active TS/SCI clearance required
- US Citizenship required
- 3 or more years of experience as an ISSO, security compliance analyst, security engineer, system administrator with security responsibilities, or a similar role
- Strong working knowledge of NIST SP 800-171, CMMC Level 2, POA&M management, control evidence, and assessment preparation
- Experience maintaining an SSP or equivalent system security documentation and supporting formal security reviews
- Ability to understand and validate evidence from identity, cloud, endpoint, network, vulnerability, and logging platforms
- Strong follow-through across multiple teams and the ability to write security documentation that clearly reflects what is actually implemented
Preferred Qualifications
- Experience with ATO, RMF, NIST SP 800-53, SOC 2 Type II, ISO 27001, DFARS 252.204-7012, SPRS, STIGs, or classified system security
- Experience with Microsoft GCC High, CrowdStrike, Palo Alto, Tenable, AWS GovCloud, Entra ID, or similar enterprise security platforms
- Security+, CGRC, CISSP, or a comparable security certification
- Experience supporting aerospace, defense, national security, ATO, RMF, or other regulated technical environments
Why Join Apex?
Apex believes in creating a work environment that you look forward to embracing every day. Our employees love working at Apex, and we want you to love it too. We're a fast-growing startup that has raised more than $500M in funding, and we invest heavily in our people from day one.
What We Offer For Full-time Employees:
Shared upside: Receive equity in Apex, letting you benefit from the work you create
Best-in-class healthcare: 100% company-paid medical, dental, and vision for you and your dependents, plus $100k life insurance at no cost
Comprehensive PTO package to reset and recharge - starting at 15 days vacation, growing to 20+ days annually, plus 10 paid holidays
Competitive 401(k) plan with generous matching - 100% match on first 3%, 50% on next 2%
8 weeks paid parental leave plus childcare reimbursement up to $350/day for work-related travel
Daily catered lunch and unlimited snacks to keep you fueled throughout the day
Vibrant community: Monthly office socials, pickleball tournaments, run club, and gatherings for you and your family
Your dream desk setup and all the tools you need to be your most productive self
World-class Playa Vista office with the benefit of in-person collaboration with amazing coworkers and flexibility to integrate work and life
Real impact opportunity: Work alongside experts from aerospace, new space, and other cutting-edge industries to make a lasting difference
Ready to join a team where your contributions matter and your future is bright? Let's build something extraordinary together.
Equal Opportunity Employer
Apex Technology, Inc. is an Equal Opportunity Employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. Candidates and employees are always evaluated based on merit, qualifications, and performance. We will never discriminate on the basis of race, color, 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.
Compensation Range: $104K - $143K
See All 13 Information Systems Security Officer Jobs in California
Find roles in California that match your experience and apply in just a few clicks.
Find JobsInformation Systems Security Officer Jobs by City in California
Where California roles are concentrated, by current openings.
Information Systems Security Officer Job Market in California
A snapshot from current California openings, updated as new roles post.
Who's Hiring
What California Employers Look For
The qualifications that appear most often in information systems security officer jobs across California.
- Active security clearance (Secret or Top Secret) required or must be clearance-eligible
- Certified Information Systems Security Professional (CISSP) certification strongly preferred or required
- Experience with Risk Management Framework and NIST 800-series standards in a government or defense environment
- Bachelor's degree in cybersecurity, computer science, information technology, or a closely related field
- Hands-on experience with system authorization and accreditation processes under DoD or federal guidelines
- Proficiency with security information and event management tools and vulnerability assessment platforms
Information Systems Security Officer Jobs in California: Frequently Asked Questions
How do you become a information systems security officer in California?
The most direct path into an information systems security officer role in California starts with a bachelor's degree in cybersecurity, information technology, or computer science, followed by earning the CISSP or CompTIA Security+ certification, which most California defense and government employers treat as a baseline credential. California's large DoD contractor and state agency sector means many openings also require or strongly prefer candidates who are already eligible for a federal security clearance, so starting in an IT or security analyst role with a cleared employer builds the right background.
Which companies hire information systems security officers in California?
Companies currently hiring information systems security officers in California include AMERICAN SYSTEMS, JT4, and FISICA, per current listings on Migrate Mate as of September 2026. California's concentration of defense primes, aerospace firms, and large state and federal agencies means demand for this role is distributed across both private contractors and public-sector employers throughout the state.
Which California cities have the most information systems security officer jobs?
The cities with the most information systems security officer openings in California are San Diego, El Segundo, and Irvine. San Diego and Los Angeles dominate because of their dense clusters of defense contractors and military installations, Sacramento draws openings from California state agencies and federal offices, and the San Francisco Bay Area adds demand from financial services firms and technology companies that maintain classified or regulated environments.
Are there remote information systems security officer jobs in California?
Yes, but they're less common than in purely analytical IT roles because information systems security officers frequently need direct, on-site access to classified systems, secure facilities, or physical infrastructure. About 33% of information systems security officer openings tied to California are remote or hybrid as of September 2026, and those tend to involve policy, compliance documentation, and risk assessment work rather than hands-on system administration.
How can I get hired as a information systems security officer in California with little or no experience?
The most realistic entry path is landing a junior information systems security analyst or IT security technician role at one of California's large defense contractors or a state agency, where cleared employers like Northrop Grumman and Leidos regularly bring on entry-level candidates and provide on-the-job training toward the ISSO designation. Earning the CompTIA Security+ first gives candidates a concrete credential that clears the initial resume screen, and transitioning laterally from a systems administrator or network analyst position at a cleared facility is another well-worn path into the role in California.
Where can I find and apply to information systems security officer jobs in California?
You can find and apply to information systems security officer jobs in California on Migrate Mate, which lists current California openings updated regularly. Search the listings, identify the roles that match your clearance level, certifications, and experience, and apply directly to the ones that fit.
See All 13 Information Systems Security Officer Jobs in California
Find roles in California that match your experience and apply in just a few clicks.
Find Jobs