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Information System Security Officer; ISSO - Millennium Space Sy Security Clearance

Job in El Segundo, Los Angeles County, California, 90245, USA
Listing for: Boeing
Full Time position
Listed on 2026-02-23
Job specializations:
  • IT/Tech
    Cybersecurity, Systems Engineer, Information Security
Job Description & How to Apply Below
Position: Information System Security Officer (ISSO) - Millennium Space Sy with Security Clearance
Job Description At Boeing, we innovate and collaborate to make the world a better place. We're committed to fostering an environment for every teammate that's welcoming, respectful and inclusive, with great opportunity for professional growth. Find your future with us. Millennium Space Systems, a part of Boeing Defense, Space and Security (BDS), is a fast, agile small satellite company focused on national security space.

Our missions have direct impact to global security, like missile warning and Earth observation. Our team is curious, bold and innovative. We take risks, innovate and explore new techniques and technologies. We influence change because we challenge the status quo. And when we watch our satellites launch, we know each one of us made it happen. We are seeking an Information Systems Security Officer (ISSO) at Millennium Space Systems, where you will ensure that the classified and controlled systems Millennium is responsible for comply with all customer-defined security requirements and applicable federal regulations.

This position is onsite in El Segundo, California.

Position Responsibilities:

* Perform daily and weekly information assurance activities, such as auditing, and working with the IT team to patch classified systems with the goal of maintaining all systems in compliance with corporate and government directives, regulations, and policies

* Create new and manage existing assessment and authorization packages and perform all tasks necessary to obtain and maintain authorization to operate (ATO). This includes items such as the implementation of security controls, writing procedures for, and conducting certification testing, facilitating third party certification and penetration testing, addressing plan of action and milestones (POA&M) items, and continuous monitoring activities

* Ensure system authorization packages take into consideration the requirements of government agencies and the owner/users of the systems such as program managers, system engineers, and developers

* Design and implement technical security controls for new and existing systems

* Participate in or lead planning and executing risk management activities such as disaster recovery, continuity of operations, and incident response

* Participate in or lead computer forensic activities such as using tools and techniques for attack reconstruction, root cause analysis, and providing solutions/recommendations Basic Qualifications (Required Skills/Experience):
* 2 years of experience within the IT and/or Info Sec industry

* Certification(s) and experience commensurate with Information Assurance Manager Level I (IAM Level I) as specified by DoDD 8140

* Experience in classified environments (e.g.: Collateral, SCI, SAP)

* Working knowledge of the Risk Management Framework as provided by NIST Special Publication (SP) 800-37, controls provided in NIST SP 800-53, and assessments provided by NIST SP 800-53A and derived policies, such as the Intelligence Community Directive Number 503 (ICD-503) or the Joint Special Access Program (SAP) Implementation Guide (JSIG)

* Working knowledge and experience with completing and submitting accreditation or assessment and authorization packages

* Ability to audit and verify security controls as part of industry standard system hardening or in accordance with customer or government requirements

* Ability to communicate complex concepts with senior management, technical personnel, and external entities including senior representatives of the US Government and teammates

* Ability to audit, scan for vulnerabilities, and continuously monitor mixed computer system environments using vulnerability scanners, SIEMs, and various scripting languages

* This position requires an active U.S. Top Secret Security Clearance (U.S. citizenship required).

Preferred Qualifications (Desired Skills/Experience):
* Ability to participate in or manage Computer Incident Response Team (CIRT) activities, including computer forensic analysis

* Ability to analyze network traffic using common security devices such as wireshark, tcpdump, firewalls, and intrusion detection systems Conflict of Interest:
Successful candidates for this job must satisfy the Company's Conflict of Interest (COI) assessment process Drug Free Workplace:
Millennium Space Systems, a Boeing Company, is a Drug Free Workplace (DFW) where post offer applicants and employees are subject to testing for marijuana, cocaine, opioids, amphetamines, PCP, and alcohol when criteria is met as outlined in our policies. Total Rewards:
At Millennium Space Systems, a Boeing Company, we strive to deliver a Total Rewards package that will attract, engage and retain the top talent. Elements of the Total Rewards package include competitive base pay and variable compensation opportunities. Millennium Space Systems also provides eligible employees with an opportunity to enroll in a variety of benefit programs, generally including health insurance, flexible spending accounts, health savings…
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