Information System Security Officer with Security Clearance - L'GARDE : Job Details

Information System Security Officer with Security Clearance

L'GARDE

Job Location : Tustin,CA, USA

Posted on : 2025-08-08T09:06:39Z

Job Description :
Information System Security Officer (ISSO) L·Garde is a full-service design, development, manufacturing, and qual-test supplier to Tier 1primes and government agencies. We provide systems engineering and skilled technicians tomake your Skunk Works-type project a reality. With over 50 years of aerospace and defenseexpertise, our deployable systems test the limits of what's possible in the harshest ofenvironments — in space, on the moon, and even on other planets. We are seeking a diligent and resourceful Information System Security Officer (ISSO) to join ourteam. If you are a proactive cybersecurity professional with a passion for protecting criticalsystems and making an impact in national security, this role is for you. A Day in the Life: As an ISSO at L·Garde, you will help secure and protect complex systems in a classifiedaerospace and defense environment. You will collaborate with leadership, IT, and complianceteams to ensure that cybersecurity controls meet stringent federal requirements. You will drivecompliance initiatives, monitor security posture, and actively safeguard the systems that makecritical projects a success. Key Responsibilities:Cybersecurity & Compliance•Support implementation, monitoring, and continuous improvement of cybersecuritycontrols in accordance with the Risk Management Framework (RMF). •Maintain and update System Security Plans (SSPs), POA&Ms, risk assessments, andcontinuous monitoring documentation. •Perform vulnerability assessments, penetration testing, and security audits using toolssuch as Nessus, SCAP/STIG, or PowerShell. •Collaborate with the CFO and IT Manager to ensure compliance with NIST SP 800-171,CMMC 2.0, DFARS 252.###-####, and other applicable cybersecurity standards. •Develop and maintain security documentation, including SSPs and incident responseplans. Technical Operations•Support account provisioning, patch management, secure configurations, and networkmonitoring. •Evaluate and recommend security solutions that meet DoD and federal requirementsfor processing classified information. •Participate in security authorization activities, including Risk Assessment Reports,Certification and Accreditation packages, and System Requirements TraceabilityMatrices (SRTMs). •Support security awareness training and insider threat mitigation programs. •Maintain thorough documentation for all security-related processes, changes, andconfigurations. •Interface with external auditors and DoD/DCSA representatives during inspections andassessments. •Promote a positive security culture and set an example for compliance and accuraterecord-keeping. Teamwork & Communication•Communicate clearly and professionally with colleagues, vendors, and governmentstakeholders. •Work independently or in collaboration with a small, high-trust team to solve complexproblems and maintain mission readiness. •Contribute to a culture of proactive security and continuous improvement. Who You Are:•Bachelor's degree in Cybersecurity, Information Systems, Computer Science, or a relatedfield — or equivalent experience. •At least 3 years of experience in cybersecurity, information assurance, IT administration,or compliance in a defense or aerospace environment. •Hands-on DoD cybersecurity compliance experience, especially under JSIG RMF and NISPOM RMF preferred. •Familiarity with NIST SP 800-171, CMMC 2.0, DFARS 252.###-####, and RMF processes. •Familiarity with JSIG classified systems, boundary definitions, and compliance documentation (e.g., SSPs, POA&Ms) •Working knowledge of Windows operating systems and cybersecurity tools (e.g.,Nessus, SIEM, endpoint protection). •Strong understanding of IT systems, networking, security policies, process controls, andIT operations. •Advanced knowledge of security principles such as defense in depth, zero trust, leastprivilege, separation of duties, access controls, and encryption. •Excellent written and verbal communication skills with the ability to clearly documentpolicies, incidents, and technical processes. •Strong organizational skills and attention to detail. •Ability to multitask, manage shifting priorities, and work in a fast-paced, mission-drivenenvironment. •Maintains Top Secret U.S. Government Security Clearance. •DoD Directive 8570.1 IAM Level I or higher certification, such as a COMPTIA Security pluscertification. What We Offer:• Be at the forefront of aerospace innovation by working on cutting-edge aerospace technologies.• Opportunity to wear multiple hats and grow your skill set.• Collaborative and inclusive work culture where your contributions are highly valued.• Competitive salary• Top-Tiered Benefits, 100% of both employee and dependents are covered by the company = Medical, Dental, Vision• Flexible Spending Account• Retirement and Company Match• Company-Sponsored Life and LTD Insurance• Generous Paid Time Off Policy with up to 4 weeks in the first year.• Robust Paid Holiday Schedule Compensation Range: $83,200 - $114,400 Join our team as an Aerospace Engineer IV and contribute to the advancement of aerospaceinnovation by taking on diverse, impactful projects in a collaborative environment, where yourcontributions are valued and your growth is fostered through hands-on experience. L·Garde is an equal opportunity employer, including individuals with disabilities and veterans, andparticipates in the E-Verify Program.
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