Information Systems Security Officer (ISSO)

Los Angelesfull time

On Site

$104k–$143k

H1B: no

Apex Technology Inc Information Systems Security Officer (ISSO) responsible for securing assigned systems and ensuring compliance with NIST SP 800-171 and CMMC Level 2. Collaborate with system owners, IT, engineering, SOC, and Cybersecurity Lead to implement and document security requirements.

Responsibilities

Apex is looking for an Information Systems Security Officer (ISSO) to keep assigned systems secure, documented, and ready for customer or third-party review. You will work with system owners, IT, engineering, the SOC, and the Cybersecurity Lead to make sure security requirements are implemented in the environment and supported by evidence that holds up under review.
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.
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.

Qualification

Active TS/SCI clearance requiredUS Citizenship requiredExperience with ATOExperience with Microsoft GCC HighSecurity+Experience supporting aerospace

Required

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

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
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.

Benefits

Dental
Vision
401(k)
PTO
Equity/RSU
Parental Leave
Life Insurance

Company

Apex Technology Inc

View company page

Source: ashby

Active within the past hour

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Must-Have Skills for This Role

NIST SP 800-171CMMC Level 2POA&M managementCrowdStrikePalo AltoTenable

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Information Systems Security Officer (ISSO) at Apex Technology Inc · LumiJobs