{"id":804037,"url":"https://alion.io/job/sphinxdefense-senior-network-engineer","title":"Senior Network Engineer","company":{"id":686152,"name":"Sphinx Defense","domain":"sphinxdefense.com","url":"https://alion.io/company/sphinxdefense","size_band":"11-50","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"A","score":95,"open_postings":16,"ghost_share":0,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":70,"computed_at":"2026-11-07T05:47:08Z"}},"role":"Networking","role_family":"Networking","seniority":"senior","employment_type":null,"work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Colorado Springs, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":144000,"max":195000,"currency":"USD","period":"year","gross":null,"usd_annual":195000},"salary_estimate":null,"experience_years_min":10,"visa_sponsorship":false,"relocation_package":false,"has_equity":true,"technologies":[{"name":"AWS","optional":false},{"name":"BGP","optional":false},{"name":"DHCP","optional":false},{"name":"DNS","optional":false},{"name":"Ansible","optional":true}],"status":"live","first_seen_at":"2026-08-04T18:09:30Z","employer_posted_date":"2026-10-05","last_verified_at":"2026-11-07T16:32:51Z","board_verified":true,"closed_at":null,"days_open":94,"trust":{"level":"ok","repost_count":0,"flags":["company_stale"],"days_open":94},"description":"ABOUT SPHINX\nSphinx builds software to solve complex national security problems in Space. Founded by engineers and technologists with deep experience across commercial and defense technology, we were frustrated by the outdated and insecure technology America's service members are forced to rely on. We're here to do better. \nWe’re focused on building modern, scalable products with an emphasis on using open source technologies. Expect talented, motivated, and interesting colleagues who emphasize collaboration, transparency, and individual responsibility.\nABOUT THE ROLE\nSphinx is hiring a Senior Network Engineer to help design, build, secure, and maintain resilient network infrastructure supporting next-generation national security space systems. This role will support mission-critical systems across classified and unclassified networks, and will require closely collaborating with software, infrastructure, products teams to ensure reliable and secure connectivity for operational systems.\nWe’re looking for someone who enjoys owning complex infrastructure challenges and can bring a strong mix of hands-on networking expertise and systems thinking to the team. You will ensure that the infrastructure underpinning critical national security space missions is performant and secure. This role is designed for someone with deep technical experience supporting enterprise or mission-focused environments, particularly within government, defense, or highly regulated spaces.\nWhat you will be focusing on:\nDesigning, configuring, maintaining, and troubleshooting secure network infrastructure \nSupporting routers, switches, firewalls, gateways, and other enterprise networking technologies, including Cisco, Juniper, and Palo Alto network devices\nInvestigating and resolving network performance, reliability, and connectivity issues across LAN/WAN environments\nSupporting secure classified network environments and maintaining compliance with government security requirements\nPerforming network monitoring, packet analysis, and root cause troubleshooting using industry-standard tools\nCollaborating with cloud, infrastructure, and cybersecurity teams to support modernization and scalability efforts\nAssisting with implementation and maintenance of network security controls and segmentation strategies, VPNs, and IPSec tunnels\nSupporting documentation, technical analysis, and operational reporting for internal and customer stakeholders\nContributing to infrastructure improvements that increase reliability, automation, and operational efficiency\nSupporting DNS, DHCP, IP management, and other core network services in enterprise environments \nYou might be a good fit if you:\nHave 10+ years of experience supporting enterprise or mission-critical network infrastructure\nHave hands-on experience with network troubleshooting, routing and switching, firewalls, and secure network architectures\nHave experience configuring and supporting Cisco, Juniper, and/or Palo Alto network technologies\nHave experience implementing and troubleshooting VPNs, IPSec tunnels, and network segmentation\nHave hands-on network security experience, including identifying and mitigating routing-based threats such as BGP hijacking and route leaks\nHave experience working in classified or highly secure environments\nHave experience with Cisco networking technologies and enterprise networking protocols\nHave experience analyzing network traffic and troubleshooting complex connectivity issues\nHave hands-on experience supporting AWS cloud and hybrid infrastructure environments, including networking and connectivity between cloud and on-premises systems\nCan clearly communicate technical issues, risks, and recommendations to both technical and non-technical stakeholders\nAre highly collaborative, self-motivated, and comfortable operating in fast-paced environments with evolving priorities\nHold an active TS/SCI clearance or are eligible to obtain one\nBonus points if you have:\nExperience designing or supporting complex AWS and/or multi-cloud networking environments\nHave experience with network automation tools and protocols such as Ansible, RESTCONF and NETCONF \nExperience supporting space, defense, or government mission environments\nHold an active DOD 8570 IAT Level II certification or higher (i.e. Security+)\nLOCATION\nThis is a hybrid role based in Colorado Springs, CO, with a combination of onsite and remote work.\nCOMPENSATION\nThis role is between $144,000 - $195,000 base salary.\nBENEFITS\nCompensation includes competitive salary, meaningful equity ownership, profit sharing, employer 401(k) contribution, and 100% employer covered medical, dental, and vision insurance for you and your dependents.\nELIGIBILITY\nMust be a US Citizen.\nMust be able to obtain and hold a U.S. TS/SCI security clearance.\nEEO STATEMENT\nAt Sphinx Defense, we are devoted to building a team that represents a variety of backgrounds, perspectives, and skills. Sphinx Defense is committed to providing equal employment opportunities to all employees and applicants for employment without regard to race, color, religion, sex, sexual orientation, and gender identity.\nCLEARANCE ELIGIBILITY - This position requires eligibility to obtain and maintain a U.S. security clearance. For more information about U.S. Security Clearances: click here. \nTo conform to U.S. Government export regulations, applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (aka green card holder), (iii) Refugee under 8 U.S.C. § 1157, or (iv) Asylee under 8 U.S.C. § 1158, or be eligible to obtain the required authorizations from the U.S. Department of State. Learn more about the ITAR here.","description_format":"text","description_chars":5671,"description_truncated":false,"requirements":{"experience_years_min":10,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":true,"languages":[]},"benefits":["Equity","Vision insurance"],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Space & Aerospace"],"lifecycle":[{"event":"open","at":"2026-09-12T09:11:35Z"}],"visa":[],"liveness":{"score":36,"band":"fade","label":"Fading","p_open":1,"p_active":0.65,"p_room":0.55,"age_days":94,"expected_fill_days":70,"reasons":["conf:0","win:tail"],"computed_at":"2026-11-07T05:47:08Z"},"pay":{"stated_usd_annual":195000,"is_top_pay":true},"html_url":"https://alion.io/job/sphinxdefense-senior-network-engineer","json_url":"https://alion.io/job/sphinxdefense-senior-network-engineer.json","meta":{"generated_at":"2026-11-07T16:47:37Z","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":23993,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-08T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"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":686152},"rest":"https://alion.io/mcp/rest/get_company?id=686152"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fsphinxdefense-senior-network-engineer"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"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%2Fsphinxdefense-senior-network-engineer"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"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%2Fsphinxdefense-senior-network-engineer"},{"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/sphinxdefense-senior-network-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fsphinxdefense-senior-network-engineer"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":804037}},{"tool":"search_jobs","arguments":{"company":"sphinxdefense.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":804037},"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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