IT Systems Administrator – Millennium Space Systems
Confirmed on the employer's own hiring board on Oct 22, 2026. First seen by Alion on Oct 16, 2026.
Company:
Millennium Space SystemsMillennium 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.
Job Summary: 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. This position will sit onsite at our office in El Segundo, CA.
This position’s internal job is Systems Administrator. Our team is currently hiring for level 3 OR 4.
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
Basic Qualifications (Required Skills/Experience):
- Ability to obtain security certifications such as Security+ or equivalent IAT Level 2 certifications per DoD Instruction 8570 (8140)
- Experience installing, configuring, troubleshooting, and administering Windows Server (2016 or later) and Windows desktop OS (Windows 10 or later)
- 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
- This position requires the ability to obtain a US Security Clearance for which the US Government requires US Citizenship. A final U.S. clearance Post Start is required
Preferred Qualifications (Desired Skills/Experience):
- 5+ years of experience with system administration of complex infrastructure and software development systems
- Experience maintaining and configuring Active Directory (AD)
- Experience executing DoD STIGs for operating systems (Windows 10, Windows Server 2016+)
- 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
Travel: Occasional travel may be required based on business needs
Conflict of Interest:
Successful candidates for this job must satisfy the Company’s Conflict of Interest (COI) assessment process.
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:
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:
- Level 3: $102,850-$151,250
- Level 4: $128,350-$173,650
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.
Category = Information Technology & Analytics
Language Requirements:
Not ApplicableEducation:
Not ApplicableRelocation:
Relocation assistance is not a negotiable benefit for this position.Export Control Requirement:
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.Safety Sensitive:
This is not a Safety Sensitive Position.Security Clearance:
This position requires the ability to obtain a U.S. Security Clearance for which the U.S. Government requires U.S. Citizenship. An interim and/or final U.S. Secret Clearance Post-Start is required.Visa Sponsorship:
Employer will not sponsor applicants for employment visa status.Contingent Upon Award Program
This position is not contingent upon program awardShift:
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