Industrial Security Specialist - Personnel Security - Millennium Space Systems

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 (MSS), a part of Boeing Defense, Space and Security (BDS) is seeking an Industrial Security Specialist - Personnel Security (Level 2 or 3) providing Personnel Security (PERSEC) support for Collateral, Sensitive Compartmented Information (SCI), and Special Access Program (SAP) activities. This role reports to the Industrial Security Manager - Personnel Security and supports government and internal customers in a fast-paced, mission-focused environment.
At the heart of this role is our commitment to deliver our customer's greatest capability: our people. The ideal candidate is detail-oriented, collaborative, and experienced in DoD personnel security processes, systems, and governing policy, including experience serving as an appointed Special Access Program Security Official (SPO) and/or Contractor Special Security Officer (CSSO).
This role emphasizes teamwork and cohesion, requiring the ability to work effectively with colleagues, government representatives, and mission partners to streamline personnel security processes, support mission success, and ensure personnel are trusted and ready. This is an onsite role in El Segundo, California.
Level 2:

• Associate's degree with a minimum of 2 years of related experience
  or
• Bachelor's degree with a minimum of 1 year of related experience

Level 3:

• Bachelor's degree with a minimum of 3 years of related experience
  or
• Master's degree with a minimum of 2 years of related experience

Position Responsibilities:
Roles & Responsibilities
Personnel Security Operations:

• Provide PERSEC support for Collateral, SCI, and SAP programs
• Review, track, and monitor security clearance processing activities in accordance with SEAD 3, SEAD 4, and the 13 Adjudicative Guidelines
• Prepare, process, and review Program Access Requests (PARs) for accuracy and access eligibility
• Maintain personnel security files for all cleared personnel
• Maintain daily logs, tracking spreadsheets, and local databases for PERSEC activities
• Apply the 13 Adjudicative Guidelines in risk assessments, clearance determinations, and SAP/SCI access decisions

Systems & Data Management:

• Perform data entry, validation, and record checks in government and local systems, including NBIS, DISS, SCINET, SIMS, and JADE
• Conduct risk assessments of candidates submitted for access using applicable personnel security systems
• Process Visit Authorization Requests (VARs) using DISS and/or JADE
• Ensure accuracy and compliance of personnel access records across multiple security platforms

Foreign Travel & Reporting:

• Provide defensive foreign travel briefings to cleared personnel
• Collect, review, and submit foreign travel, foreign contact, and foreign activity reports in accordance with SEAD 3 reporting requirements
• Ensure timely updates to government systems and notify appropriate U.S. Government representatives of reportable activities

SPO / CSSO Responsibilities:

• Serve as, or support, an appointed Special Access Program Security Official (SPO) and/or Contractor Special Security Officer (CSSO), as required
• Execute delegated personnel security authority for SCI and SAP programs in coordination with Government Security Representatives (GSRs) and Program Security Officers
• Interface directly with government customers and mission partners on SCI and SAP personnel security matters
• Ensure compliance with all applicable SCI and SAP personnel security policies, procedures, and reporting requirements
• Promote team cohesion in executing personnel security operations and ensuring consistent application of policies
• Take ownership of challenges and offer solutions to improve efficiency, accuracy, and mission support

Customer & Government Support:

• Coordinate indoctrination and debriefing appointments in collaboration with government customers
• Support U.S. Government senior leaders with access approval decisions
• Regularly provide updates to program managers on Personnel Security Operations, including clearance status, and SAP/SCI program access
• Reinforce that our people are our greatest capability through proactive, solutions-oriented PERSEC operations

Compliance & Program Support:

• Assist with security education, awareness, and refresher training initiatives
• Initiate and maintain records for annual self-inspections, security refresher training, indoctrinations, and staff assistance visits
• Support secured space operations, including a working knowledge of opening and securing classified spaces
• Complete all required technical, security, and compliance training
• Collaborate with internal teams and external customers to ensure personnel security compliance is achieved through various self-inspections and continuous compliance inspections.

Basic Qualifications (Required Skills/Experience):

• This position requires an active U.S. Top Secret Security Clearance with SCI Eligibility (U.S. Citizenship Required. A U.S. Security Clearance that has been active in the past 24 months. More information on this process can be found by following the Mandatory Security Clearance and Access Process Disqualifying Criteria link which is listed in the job posting.
• Eligibility for Special Access Programs (SAP)
• Willingness to submit to a Counterintelligence polygraph
• Working knowledge of SEAD 3, SEAD 4, and the 13 Adjudicative Guidelines, including their application to risk assessments, clearance determinations, and access decisions.
• Working knowledge of applicable security policies and guidance (ICDs, SEADs, JAFANs, DoD Manuals, etc.)
• Experience with assisting an appointed Special Access Program Security Official (SPO) and/or CSSO.
• Ability to build rapport and work effectively with DoD, military, civilian, and industry partners
• Proficiency with Microsoft Word, Excel, and PowerPoint

Preferred Qualifications (Desired Skills/Experience):

• Active Top-Secret clearance with SCI eligibility and adjudicated counterintelligence polygraph.
• Prior experience acting as the primary appointed SPO or CSSO for SCI or SAP programs.
• Proficiency with NBIS, DISS, SCINET, SIMS, and JADE.
• Ability to work as a team member while simultaneously functioning independently and accepting responsibility for assigned actions.
• Must be able to relate to a diversified customer base and be knowledgeable of DoD operations.
• Proven ability to contribute to teamwork, cohesion, and proactive problem-solving.
• Experience with routinely handling, transporting, documenting, and accounting for classified material.
• Developing solutions to problems of moderate scope and complexity.
• Excellent written and verbal communication skills with strong attention to detail

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 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.
Pay & Benefits:
Millennium Space Systems, A Boeing Company, offers a very competitive benefits package to include medical, dental, vision, and 401k plan.

• Level 2: $64,000 - $114,000
• Level 3: $78,000-$139,000

Applications for this position will be accepted until Feb. 20, 2026
Export Control Requirements:
This position must meet U.S. export control compliance requirements. To meet U.S. export control compliance requirements, a "U.S. Person" as defined by 22 C.F.R. §120.62 is required. "U.S. Person" includes U.S. Citizen, U.S. National, lawful permanent resident, refugee, or asylee.
Export Control Details:
US based job, US Person required
Relocation
Relocation assistance is not a negotiable benefit for this position.
Security Clearance
This position requires an active U.S. Top Secret Security Clearance (U.S. Citizenship Required). (A U.S. Security Clearance that has been active in the past 24 months is considered active)
Visa Sponsorship
Employer will not sponsor applicants for employment visa status.
Shift
This position is for 1st shift
Equal Opportunity Employer:
Boeing is an Equal Opportunity Employer. Employment decisions are made without regard to race, color, religion, national origin, gender, sexual orientation, gender identity, age, physical or mental disability, genetic factors, military/veteran status or other characteristics protected by law.