Network Administrator II

Posted Yesterday
Be an Early Applicant
Westminster, CO, USA
In-Office
Mid level
Aerospace • Hardware • Software • Defense
CesiumAstro creates out-of-the-box communication systems for space and airborne platforms.
The Role
Administer and support enterprise and operational network infrastructure for launch operations, including switches, routers, firewalls, VPNs, VLANs, monitoring, troubleshooting, incident response, documentation, and collaboration with cybersecurity and engineering teams during mission-critical and shift-based operations.
Summary Generated by Built In
Please Note: To conform with the United States Government Space Technology Export Regulations, the applicant must be a U.S. citizen, lawful permanent resident of the U.S., conditional resident, asylee or refugee (protected individuals as defined by 8 U.S.C. 1324b(a)(3)), or eligible to obtain the required authorizations from the U.S. Department of State.

At CesiumAstro, we are developers and pioneers of out-of-the-box communication systems for satellites, UAVs, launch vehicles, and other space and airborne platforms. We take pride in our dynamic and cross-functional work environment, which allows us to learn, develop, and engage across our organization. If you are looking for hands-on, interactive, and autonomous work, CesiumAstro is the place for you. We are actively seeking passionate, collaborative, energetic, and forward-thinking individuals to join our team.

CesiumAstro is seeking a Network Administrator II to join our 2nd or 3rd shift. In this role, you will support network infrastructure and communications systems associated with the Element 1 Launch Operations Program. This role is responsible for maintaining secure, reliable, and high-performing network environments that support engineering, integration, testing, mission operations, and launch activities.

The ideal candidate is a proactive and technically capable network professional with experience supporting operational infrastructure in mission-critical environments. This position works closely with IT infrastructure, cybersecurity, mission operations, and engineering teams to ensure network stability, security, and operational readiness across launch and ground support systems.

JOB DUTIES AND RESPONSIBILITIES

    Network Infrastructure Administration

  • Configure, administer, monitor, and maintain enterprise and operational network infrastructure supporting Element 1 launch operations
  • Support switches, routers, firewalls, wireless infrastructure, and network security appliances
  • Monitor network performance, availability, and capacity to ensure reliable operational support
  • Troubleshoot network connectivity, latency, and infrastructure-related issues across operational and engineering environments
  • Support implementation and maintenance of VLANs, VPNs, routing protocols, and access control configurations
  •  Operational & Technical Support

  • Support network infrastructure associated with launch operations, integration labs, mission operations, and testing environments
  • Assist with network provisioning, hardware deployments, cable management, and infrastructure upgrades
  • Collaborate with cybersecurity teams to support network security, vulnerability remediation, and compliance initiatives
  • Participate in incident response and operational troubleshooting activities during critical mission and launch support windows
  • Support business continuity and disaster recovery planning activities related to network operations
  •  Documentation & Continuous Improvement

  • Maintain accurate network diagrams, infrastructure documentation, configuration records, and operational procedures
  • Assist with implementation of infrastructure improvements focused on reliability, scalability, and operational efficiency
  • Support network audits, compliance reviews, and cybersecurity assessments
  • Recommend process improvements and infrastructure enhancements based on operational needs and performance trends
  • Perform other duties, responsibilities, and special projects as assigned to support business operations, organizational objectives, and evolving Element 1 program needs

JOB REQUIREMENTS AND MINIMUM QUALIFICATIONS

  • Bachelor’s degree in Computer Science, Information Technology, Information Systems, Network Engineering, Cybersecurity, or a related technical field.
  • 2–5 years of professional experience in network administration or network operations.
  • Experience administering enterprise networking environments and supporting operational infrastructure.
  • Working knowledge of:
    • Enterprise networking technologies (Fortinet preferred or equivalent platforms)
    • Firewall and network security solutions
    • VPN and remote access technologies
    • Network monitoring, diagnostics, and troubleshooting tools
    • Routing, switching, TCP/IP, VLANs, and network segmentation
    • Ticketing systems and infrastructure management platforms
    • Strong analytical and troubleshooting skills with the ability to resolve network connectivity, hardware, and software issues.
    • Excellent communication skills and ability to collaborate across technical teams.

PREFERRED EXPERIENCE

  • Experience supporting aerospace, defense, manufacturing, mission operations, or other highly regulated operational environments.
  • Familiarity with cybersecurity frameworks, compliance requirements, and vulnerability management processes.
  • Experience supporting 24/7 operations or shift-based environments.

CesiumAstro considers several factors when extending an offer, including but not limited to, the role and associated responsibilities, a candidate’s work experience, education/training, and key skills.  Full-time employment offers include company stock options and a generous benefits package including health, dental, vision, HSA, FSA, life, disability and retirement plans.  
 
CesiumAstro is an Equal Opportunity employer.  All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability, protected Veteran Status, or any other characteristic protected by applicable federal, state, or local law.

Please note: CesiumAstro does not accept unsolicited resumes from contract agencies or search firms. Any unsolicited resumes submitted to our website or to CesiumAstro team members will be considered property of CesiumAstro, and we will not be obligated to pay any referral fees.

Skills Required

  • Bachelor's degree in Computer Science, IT, Information Systems, Network Engineering, Cybersecurity, or related field.
  • 2-5 years of professional experience in network administration or network operations.
  • Experience administering enterprise networking environments and operational infrastructure.
  • Working knowledge of enterprise networking technologies (Fortinet preferred or equivalent platforms).
  • Experience with firewall and network security solutions.
  • Experience with VPN and remote access technologies.
  • Familiarity with network monitoring, diagnostics, and troubleshooting tools.
  • Knowledge of routing, switching, TCP/IP, VLANs, and network segmentation.
  • Experience with ticketing systems and infrastructure management platforms.
  • Strong analytical and troubleshooting skills to resolve connectivity, hardware, and software issues.
  • Excellent communication skills and ability to collaborate across technical teams.
  • Experience supporting aerospace, defense, manufacturing, mission operations, or other highly regulated operational environments.
  • Familiarity with cybersecurity frameworks, compliance requirements, and vulnerability management processes.
  • Experience supporting 24/7 operations or shift-based environments.

CesiumAstro Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about CesiumAstro and has not been reviewed or approved by CesiumAstro.

  • Healthcare Strength Health coverage includes medical, dental, vision, life and disability insurance, plus FSAs and mental health benefits. Feedback suggests the health package is comprehensive for a growth-stage aerospace firm.
  • Retirement Support Offerings include a 401(k) with company matching and other retirement-plan elements. Feedback suggests core retirement mechanisms are in place alongside standard financial benefits.
  • Leave & Time Off Breadth Generous PTO, paid holidays, paid sick days, and bereavement leave are included. Feedback suggests time-off options are broad on paper across multiple leave types.

CesiumAstro Insights

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The Company
HQ: Austin, TX
400 Employees
Year Founded: 2017

What We Do

We build high-throughput, plug-and-play phased array communication payloads for space and airborne platforms. CesiumAstro’s full-stack, multi-mission hardware and software products enable a diverse range of commercial and defense objectives. Full-system engineering design is at the heart of every CesiumAstro product. We deliver high-performance solutions under rapid development timelines.

Why Work With Us

At CesiumAstro, we’re a team. We’re passionate, respectful, and determined colleagues ready to help at a moment’s notice. We’re mentors excited to enable our peers with the knowledge they need to succeed. Together, we’re visionaries committing to building memories that will last a lifetime.

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