{"id":340859,"url":"https://alion.io/job/sierra-space-systems-engineer-iii-mission-systems","title":"Linux Systems Administrator – Dream Chaser Mission Systems (Systems Engineer III)","company":{"id":58801,"name":"Sierra Space","domain":"sierraspace.com","url":"https://alion.io/company/sierra-space","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"B","score":79,"open_postings":31,"ghost_share":0,"stale_share":0.839,"repost_share":0,"time_to_fill_p50_days":36,"computed_at":"2026-11-12T10:38:37Z"}},"role":"DevOps","role_family":"DevOps","seniority":"middle","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Louisville, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":119064,"max":163713,"currency":"USD","period":"year","gross":null,"usd_annual":163713},"salary_estimate":null,"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Linux","optional":false},{"name":"Ansible","optional":true},{"name":"Bash","optional":true},{"name":"CentOS Stream","optional":true},{"name":"CIS Benchmarks","optional":true},{"name":"Configuration Management","optional":true},{"name":"Confluence","optional":true},{"name":"Docker","optional":true},{"name":"Jira","optional":true},{"name":"Puppet","optional":true},{"name":"Python","optional":true},{"name":"Verification & Validation","optional":true},{"name":"VMWare","optional":true},{"name":"Windows","optional":true}],"status":"live","first_seen_at":"2026-03-12T00:00:00Z","employer_posted_date":"2026-09-11","last_verified_at":"2026-11-13T00:14:28Z","board_verified":true,"closed_at":null,"days_open":246,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":245},"description":"Sierra Space Careers:\nAt Sierra Space, we build the missions and systems that keep our world secure in the domain above Earth.\nSierra Space team members share a spirit of innovation and collaboration and a belief that we can deliver on the boldest missions in space today. Together with our customers, we aim to safeguard our nation, sustain human presence in space, and secure the freedom of operations in low Earth orbit and beyond.\nOur success is measured by the trust of those who rely on what we build and deliver, and our technologies keep the United States and its allies mission-ready throughout space.\nWe are mission-driven, and together, we are an extraordinary team.\nAbout the Role\nSierra 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.About You\nOur 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.\nWe’re looking for team members who align with our values, mission and goals - while also meeting the minimum qualifications below. The preferred qualifications are a bonus, not a requirement.\nKey Responsibilities:\nLinux Systems Administration:\nAdminister, configure, and maintain Linux-based servers and workstations (RHEL/CentOS)\nPatch, harden (STIG compliance), tune performance, and troubleshoot Linux systems\nManage virtualized Linux environments (VMware) and containerized applications (Docker)\nWrite and maintain Bash/Python scripts for automation, monitoring, and administration\nMission & Network Support:\nProvide end-to-end support of mission-critical IT systems, infrastructure, and networks\nConfigure and support networking components (Cisco switches, Palo Alto firewalls)\nAdminister command and telemetry software (InControl & Amergint | ARKA)\nSupport real-time missions and pre-mission simulations\nProvide Flight & Test Operations end-user support\nDocumentation & Process:\nDevelop documentation for system design, operations, and training\nRefine operational concepts and processes\nPerform general systems engineering and integration tasks\nCollaborate closely with NASA during all phases of mission preparation and planning\nMinimum Qualifications:\nBS 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)\nExperience with VMware, Docker, Python, RF, Cisco switches, and Palo Alto firewalls\nExperience with command and telemetry software (InControl & Amergint | ARKA)\nProficient with Linux and Windows operating systems (Linux depth required)\nExperience in IT system & network administration, data management, software configuration, and real-time mission support\nPractical knowledge of engineering principles and practices\nExperience working in multi-disciplinary design and development teams\nKnowledge of requirements management, functional requirements parsing/derivation/allocation, systems design/integration, technical risk identification and management, and V&V principles\nThis role requires you to work on-site at our Louisville, CO location\nAbility to obtain/maintain Secret or higher U.S. Security Clearance may be required\nMust pass NASA background check and maintain NASA clearance\nPreferred Qualifications:\nLinux certification (RHCSA, RHCE, LFCS, or equivalent)\nPython Scripting experience \nSecurity hardening experience (DISA STIGs, CIS Benchmarks)\nConfiguration management/automation tools (Ansible, Puppet, or similar)\nReal-time operations, spacecraft ground systems, or control center operations experience\nExperience managing enterprise IT applications, systems, and networking at scale\nKnowledge of ground-to-space communication systems and control center development\nProficiency in Jira and Confluence\nINCOSE certification or equivalent experience\nBackground in Aerospace and Defense industry\nExperience with baseline definition/maturation in complex development settings, including trade studies\nExposure to establishing and tracking Technical Performance Measurements (TPMs)\nCompensation:\nPay Range:\n$119,064.00 - $163,713.00Your actual base compensation will be determined on a case-by-case basis and may vary based on job-related knowledge and skills, education, experience, internal equity and market competitiveness.\nElevate Your Career\nAt Sierra Space, we are committed to your personal and professional development. We empower you to make profound and meaningful contributions and foster a vibrant culture of collaboration, where teamwork ignites breakthrough innovations.\nWe also offer a generous benefit package, including medical, dental, and vision plans, 401(k) with 150% match up to 6%, life insurance, 3 weeks paid time off, and more.\nSierra Space is an industry-leading space and defense technology company providing satellites, spacecraft, and enabling mission systems and components. We deliver mission-proven technologies to our customers that safeguard our nation, protect space-based assets and enable space exploration.\nApplication Deadline: This role will remain posted until a qualified pool of candidates is identified.\nPlease note: Sierra Space does not accept unsolicited resumes from contract agencies or search firms. Any unsolicited resumes submitted to our website or to Sierra Space team members not through our approved vendor list or Talent Acquisition will be considered property of Sierra Space, and we will not be obligated to pay any referral fees.\nSierra Space Corporation is an equal opportunity employer and is committed to working with and providing reasonable accommodations to applicants with disabilities. If you need special assistance or a reasonable accommodation related to applying for employment with Sierra Space or at any stage of the recruitment process, please contact us.","description_format":"text","description_chars":6288,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":true,"languages":[]},"benefits":["Equity","Life insurance","Professional development"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Space & Aerospace"],"lifecycle":[{"event":"open","at":"2026-09-05T18:02:55Z"}],"visa":[],"liveness":{"score":6,"band":"cold","label":"Long shot","p_open":1,"p_active":0.229,"p_room":0.28,"age_days":245,"expected_fill_days":36,"reasons":["conf:0","stale_co","velocity","win:tail","crowd:brand"],"computed_at":"2026-11-12T10:38:37Z"},"pay":{"stated_usd_annual":163713,"is_top_pay":true},"html_url":"https://alion.io/job/sierra-space-systems-engineer-iii-mission-systems","json_url":"https://alion.io/job/sierra-space-systems-engineer-iii-mission-systems.json","meta":{"generated_at":"2026-11-13T04:23:31Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":9313,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-14T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.1,"usd":0.01,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":58801},"rest":"https://alion.io/mcp/rest/get_company?id=58801"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fsierra-space-systems-engineer-iii-mission-systems"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"free","price":{"credits":0,"usd":0},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fsierra-space-systems-engineer-iii-mission-systems"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.1,"usd":0.01},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fsierra-space-systems-engineer-iii-mission-systems"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/sierra-space-systems-engineer-iii-mission-systems\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fsierra-space-systems-engineer-iii-mission-systems"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":340859}},{"tool":"search_jobs","arguments":{"company":"sierraspace.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":340859},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); https://alion.io/mcp with an Alion account has everything. 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