Information Technology (IT) Systems Administrator (Level 4) - 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 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.
Millennium Space Systems (MSS) has an exciting opportunity for an Information Technology (IT) Systems Administrator (Level 4) to join the MSS team in El Segundo, CA!
We are seeking a highly motivated, results-oriented, well-rounded, and security-minded IT Systems Administrator to join our team. IT Systems Administrators are responsible for maintaining, configuring, updating, and integrating our secure enterprise and air-gapped systems with a complex variety of operating systems, software applications, and hardware. You will work with collaborative teams of peers that specialize in maintaining compliance standards that keep our systems updated and secure.
The IT Systems Administrator is responsible for effective provisioning, installation/configuration, operation, and maintenance of systems hardware and software and related infrastructure. This individual participates in technical research and development to enable continuing innovation within the infrastructure. This individual ensures that system hardware, operating systems, software systems, and related procedures adhere to organizational policies.
Strong communication and organizational skills are critical to success in this position, along with the ability to build strong relationships, collaborate in a cross-functional environment, and utilize problem-solving skills to proactively identify and manage risks and opportunities.
Position Responsibilities:

• Expected to provide Tier II and below support
• Manage system installation, configuration, upgrades, and updates on secure networks
• Maintain documentation for system operations, changes, and procedures
• Provide technical support and interact with customers in-person, by email, or by response to tickets
• Escalate tickets, tasks, and problems as required
• Monitor systems and resolve issues to prevent costly downtime
• Other job duties as assigned

This position is expected to be 100% onsite. The selected candidate will be required to work onsite at one of the listed location options.
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)
Basic Qualifications (Required Skills/Experience):

• Ability to obtain security certifications such as Security+ or equivalent IAT Level 2 certifications per DoD Instruction 8570 (8140)
• 5+ years of experience with system administration of complex infrastructure and software development systems
• Experience installing, configuring, troubleshooting, and administering Windows Server (2016 or later) and Windows desktop OS (Windows 10 or later)
• Experience executing DoD STIGs for operating systems (Windows 10, Windows Server 2016+)
• Experience maintaining and configuring Active Directory (AD)
• Experience with VMware vCenter, vSphere, and managing virtual machines
• Experience administering Red Hat Linux based systems with minimal support, to include Linux sub-systems, patching, packaging (RPM), performance tuning, networking, user management, and security

Preferred Qualifications (Desired Skills/Experience):

• Experience with multiple Linux operating systems
• Familiarity with Cisco, Palo Alto, and Juniper switches and firewalls
• Experience with VEEAM Backup Suite or Power Protect Data Manager
• Familiarity with Windows and Linux integration
• Ability to create technical documentation to train end users
• Experience with DNS, Group Policies, Print Management
• Experience with troubleshooting, updating, and upgrading Microsoft applications (Outlook, Word, Excel, Project, etc)
• Experience with backup and recovery procedures

Relocation assistance is not a negotiable benefit for this position. Candidates must live in the immediate area or relocate at their own expense.
Travel: Occasional travel may be required based on business needs
Shift: 1st Shift
Drug Free Workplace:
Boeing 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.
Total Rewards & Pay Transparency:
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 accounts, retirement savings plans, life and disability insurance programs, and a number of programs that provide for both paid and unpaid time away from work.
The specific programs and options available to any given employee may vary depending on eligibility factors such as geographic location, date of hire, and the applicability of collective bargaining agreements.
Pay is based upon candidate experience and qualifications, as well as market and business considerations.
Summary pay range: $128,350-$173,650
Applications for this position will be accepted until May 21, 2026
Millennium is DDTC-registered, ITAR-compliant Company. This position is located at a facility that requires special access. Applicants MUST be U.S. citizens and eligible for a security clearance. Additionally, applicants must be willing to apply for and maintain a security clearance. We encourage all interested candidates to apply for any open position for which they feel they are qualified.
Applications for this position will be accepted until Mar. 22, 2026
Export Control Requirements:
If the successful candidate is not a "U.S. Person" (as defined by 22 C.F.R. § 120.62 "U.S. Person" includes U.S. citizens and U.S. nationals, lawful permanent residents, refugees, or asylees) and the position requires access to export-controlled data, an appropriate export authorization by the U.S. Government may be required prior to such access. Employment, and the continuity of employment of non-U.S. persons, is contingent upon the company's ability to secure and maintain the necessary export control authorization.
Export Control Details:
US based job, US Person not 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.