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Linux Systems Administrator

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Onsite

Linux Systems Administrator

Sierra Space

Linux Systems Administrator

Skills

DockerPythonAnsibleLinuxJiraConfluenceWorkdayCompliance

7 months ago

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Important information


Salary:

$119,064 – $163,713 / year

Location:

Denver, CO, USA

Work mode:

Onsite

Published on:

18 September 2026

What they need


Who you are

  • Our mission is driven by an unyielding commitment to advancing space-based technology in service of our customers and safeguarding national security. We seek individuals who are passionate about innovating beyond boundaries and relentlessly pursuing solutions that protect, preserve and empower – to join us in this critical mission
  • BS in Computer Science, Systems Engineering, or related discipline + typically 5 or more years of relevant experience (relevant experience may count toward degree; relevant advanced degree may count toward experience)
  • Experience with VMware, Docker, Python, RF, Cisco switches, and Palo Alto firewalls
  • Experience with command and telemetry software (InControl & Amergint | ARKA)
  • Proficient with Linux and Windows operating systems (Linux depth required)
  • Experience in IT system & network administration, data management, software configuration, and real-time mission support
  • Practical knowledge of engineering principles and practices
  • Experience working in multi-disciplinary design and development teams
  • Knowledge of requirements management, functional requirements parsing/derivation/allocation, systems design/integration, technical risk identification and management, and V&V principles
  • This role requires you to work on-site at our Louisville, CO location
  • Ability to obtain/maintain Secret or higher U.S. Security Clearance may be required
  • Must pass NASA background check and maintain NASA clearance
  • Linux certification (RHCSA, RHCE, LFCS, or equivalent)
  • Python Scripting experience
  • Security hardening experience (DISA STIGs, CIS Benchmarks)
  • Configuration management/automation tools (Ansible, Puppet, or similar)
  • Real-time operations, spacecraft ground systems, or control center operations experience
  • Experience managing enterprise IT applications, systems, and networking at scale
  • Knowledge of ground-to-space communication systems and control center development
  • Proficiency in Jira and Confluence
  • INCOSE certification or equivalent experience
  • Background in Aerospace and Defense industry
  • Experience with baseline definition/maturation in complex development settings, including trade studies
  • Exposure to establishing and tracking Technical Performance Measurements (TPMs)

What the job involves

  • Sierra Space is seeking a Linux Systems Administrator to support mission-critical IT systems, networks, and infrastructure in a space flight mission critical environment
  • This role focuses on Linux administration of real-time spacecraft ground systems and applications as well as certifying as a Ground Control (GC) flight controller
  • Administer, configure, and maintain Linux-based servers and workstations (RHEL/CentOS)
  • Patch, harden (STIG compliance), tune performance, and troubleshoot Linux systems
  • Manage virtualized Linux environments (VMware) and containerized applications (Docker)
  • Write and maintain Bash/Python scripts for automation, monitoring, and administration
  • Provide end-to-end support of mission-critical IT systems, infrastructure, and networks
  • Configure and support networking components (Cisco switches, Palo Alto firewalls)
  • Administer command and telemetry software (InControl & Amergint | ARKA)
  • Support real-time missions and pre-mission simulations
  • Provide Flight & Test Operations end-user support
  • Develop documentation for system design, operations, and training
  • Refine operational concepts and processes
  • Perform general systems engineering and integration tasks
  • Collaborate closely with NASA during all phases of mission preparation and planning

Benefits

  • Medical Coverage: We offer two comprehensive medical plans, a PPO and an HDHP, designed to prioritize the well-being of our team members
  • Dental Coverage: HMO and PPO dental plans are aimed at promoting optimal oral health and reducing costs
  • Vision Coverage: Our vision plan offers access to a wide range of in-network and out-of-network providers
  • Flexible Spending Accounts: Maximize savings and use pre-tax dollars to pay for medical and dependent care expenses
  • Health Savings Account: This tax-advantaged savings account allows team members to set aside pre-tax funds to cover qualified medical expenses
  • Life and AD&D Insurance: Comprehensive Basic and Supplemental Life and Accidental Death and Dismemberment (AD&D) insurance offers financial protection to your family
  • Disability Insurance: Short-term and long-term disability insurance provides wage replacement should you suffer a disability that prevents you from working
  • 401K Profit Sharing Plan: Employees may contribute 1% to 100% of base salary up to the annual IRS maximum. Employer match provided with a 5-year vesting schedule
  • Employee Assistance Program: Confidential service available 24/7 that provides assessment, counseling, resources and referrals to employees
  • Professional Development / Educational Reimbursement Plan: Reimbursement for undergraduate and graduate tuition, books and fees.

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