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Corporate Cybersecurity Analyst

Job in El Segundo, Los Angeles County, California, 90245, USA
Listing for: Millennium Space Systems
Full Time position
Listed on 2026-08-11
Job specializations:
  • IT/Tech
    Cybersecurity, Information Security & Data Protection
Salary/Wage Range or Industry Benchmark: 81000 - 148000 USD Yearly USD 81000.00 148000.00 YEAR
Job Description & How to Apply Below
Position: Corporate Cybersecurity Analyst – Millennium Space Systems
  • Experience in digital forensics
Company

Millennium Space Systems

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.

Job Summary

As a Corporate Cybersecurity Analyst at Millennium Space Systems, you will ensure that unclassified and controlled systems comply with corporate security requirements and applicable federal regulations. You will execute vulnerability testing, perform limited penetration testing, and contribute to root cause‑ analysis and remediation activities while supporting the implementation of the NIST Risk Management Framework, the Cybersecurity Framework, NIST 800‑171 R2, and CMMC on the corporate network.

This is an onsite role in El Segundo, California.

This position's internal job is Cyber Security Assessment Spec. Our team is currently hiring for a level 1 or 2.

Position Responsibilities
  • Perform daily and weekly audits and scans using SIEM, vulnerability scanners, antivirus, IDS/IPS, Nmap, Wireshark, and similar tools
  • Create, modify, and upgrade security tools (SIEM, EDR, DLP), dashboards, queries, and reports
  • Execute predefined vulnerability testing and limited penetration testing; conduct foot printing, enumeration, and exploitation as needed
  • Perform root cause analysis of findings and assist with remediation reviews
  • Create and maintain documentation (Including but not limited to system security plan (SSP), acceptable use policies (AUP), standard operating procedures (SOPs), incident playbooks)
  • Assess and implement the NIST Risk Management Framework, Cybersecurity Framework, NIST
    800‑171R2, and CMMC on the corporate network
  • Work with Information Technology to monitor daily network activity, generate weekly security reports, and brief the Head of Information Security
  • Serve as liaison for all corporate Information Security matters, providing strong interpersonal support
  • Participate in or lead risk management activities such as disaster recovery, continuity of operations, and incident response
Basic Qualifications (Required Skills/Experience)
  • Associates degree in IT, Information Security, Cybersecurity, Computer
  • Must have an active DoD 8570/8140 IAM Level 1 security certification (Security+, Cloud+, etc.)
  • Experience with SIEM, NIDS/NIPS, EDR, DLP, vulnerability scanning, and network threat hunting
  • 1+ years of experience in a SOC, Information Security Analyst role, or equivalent academic experience
  • This position requires the ability to obtain a U.S. Security Clearance for which the U.S. Government requires U.S. Citizenship
Preferred Qualifications (Desired Skills/Experience)
  • B.S. in Computer Science, Computer Engineering, Cybersecurity, or a related discipline
  • Experience in Linux and Windows integrated environments
  • Advanced cyber related certifications (CISSP, CISM, etc.)
  • Incident response experience or related academic knowledge
  • Strong work ethics and ability to learn complex SOC concepts
  • 3+ years of experience in a SOC, Information Security Analyst role, or equivalent academic experience
  • Working knowledge of NIST
    800‑171R2 or related cybersecurity frameworks and familiarity with CMMC
  • Experience in digital forensics
  • Experience with NIST 800-171 and CMMC
  • Experience with SDLC and experience within a Dev Ops environment
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.…

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