{"id":3411681,"url":"https://alion.io/job/ast-spacemobile-principal-gateway-engineer","title":"Principal Gateway Engineer","company":{"id":2057930,"name":"AST SpaceMobile","domain":"ast-science.com","url":"https://alion.io/company/ast-science","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"A","score":89,"open_postings":245,"ghost_share":0.098,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":115,"computed_at":"2026-10-31T05:58:55Z"}},"role":"Industrial Engineering","role_family":"Industrial Engineering","seniority":"lead","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Dallas, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":104000,"max_usd":211000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":1961},"experience_years_min":3,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"CI/CD","optional":true},{"name":"Grafana","optional":true},{"name":"Kubernetes","optional":true},{"name":"Microsoft Office","optional":true},{"name":"Prometheus","optional":true},{"name":"Python","optional":true},{"name":"Splunk","optional":true},{"name":"Wireshark","optional":true}],"status":"live","first_seen_at":"2026-10-28T16:32:19Z","employer_posted_date":"2026-10-28","last_verified_at":"2026-10-31T20:41:59Z","board_verified":true,"closed_at":null,"days_open":3,"trust":{"level":"ok","repost_count":0,"flags":["company_stale"],"days_open":2},"description":"AST SpaceMobile and our global partners are building the first and only space-based cellular broadband network to be accessible by standard smartphones. Called SpaceMobile, this ultra-powerful network is being designed to provide connectivity at 4G/5G speeds everywhere on the planet - on land, at sea and in flight.\nPosition Overview\nWe're looking for a Principal Gateway Engineer to help design, deploy, optimize, and troubleshoot packet core gateway infrastructure that carries subscriber data traffic across mobile networks. This role will work across the full call flow lifecycle, from initial device registration and session establishment through mobility management and data transfer, ensuring reliable connectivity and service performance.\nAs a senior technical contributor, you will partner closely with radio access, core network, IMS, device, and platform engineering teams to identify and resolve issues impacting network performance, subscriber experience, and service availability. You will play a key role in developing technical standards, validating network requirements, and supporting the deployment of scalable and resilient core network solutions.\nThe ideal candidate brings strong expertise in LTE and 5G core technologies, hands-on troubleshooting experience, and a deep understanding of packet core architecture, signaling protocols, and network operations.\nKey Responsibilities\nConfigure, operate, and optimize packet core gateway functions, including subscriber connectivity, data session management, IP address management, quality of service policies, and charging integrations\nAnalyze signaling and user-plane traces to identify and resolve session establishment failures, connectivity issues, mobility events, and service disruptions\nTroubleshoot network issues across multiple domains by correlating gateway, radio, device, and subscriber data\nMonitor and improve key network performance indicators, including session success rates, throughput, latency, and service availability\nSupport software upgrades, feature introductions, capacity expansions, and maintenance activities, including implementation planning and validation testing\nPartner with vendors to investigate defects, validate fixes, and coordinate software release activities\nSupport interoperability and roaming initiatives involving partner networks and multi-technology environments\nDevelop automation tools and scripts for configuration validation, log analysis, auditing, and operational efficiency improvements\nCreate and maintain operational documentation, troubleshooting guides, standard operating procedures, and incident reports\nParticipate in production support and on-call activities to assist with network incident response and service restoration\nCollaborate with cross-functional engineering teams to define requirements, evaluate solutions, and improve overall system performance\nProvide technical leadership and mentorship while promoting engineering best practices and operational excellence\nQualifications\nEducation:\nBachelor’s degree in Electrical Engineering, Computer Science, Telecommunications, Information Technology, or a related technical field\nEquivalent combination of education and relevant industry experience may be considered\nExperience:\nMinimum 3-7 years of experience in cellular core network engineering, packet core operations, telecommunications engineering, or network systems testing\nHands-on experience supporting LTE/EPC and/or 5G Core network environments\nExperience troubleshooting signaling, subscriber connectivity, mobility, and data session issues in production environments\nExperience performing network upgrades, change management activities, and operational support functions\nWorking knowledge of mobile network architecture and end-to-end service flows\nPreferred Qualifications:\nExperience with virtualized or cloud-native core network platforms, including containerized network functions and orchestration technologies\nExperience working with commercial packet core solutions from major telecommunications vendors\nExposure to radio access network procedures and device-level troubleshooting tools\nKnowledge of IMS, VoLTE, VoNR, roaming architectures, and advanced mobile network services\nExperience supporting large-scale production network environments\nFamiliarity with observability, monitoring, and analytics platforms\nExperience with CI/CD pipelines, automation frameworks, and infrastructure automation practices\nRelevant industry certifications, telecommunications training, or vendor-specific credentials\nSoft Skills:\nStrong analytical and problem-solving abilities\nExcellent written and verbal communication skills\nAbility to communicate complex technical issues to both technical and non-technical audiences\nProven ability to collaborate effectively across cross-functional engineering teams\nStrong organizational and time management skills\nAbility to manage multiple priorities in a fast-paced operational environment\nAttention to detail and commitment to operational excellence\nSelf-motivated with a proactive approach to troubleshooting and continuous improvement\nTechnology Stack:\nLTE EPC and 5G Core technologies\nGTP, Diameter, PFCP, SIP, and related telecommunications protocols\nWireshark and network protocol analysis tools\nPython, Bash, or other scripting languages\nIP networking technologies including routing, NAT, VLANs, and network services\nVirtualization and cloud-native platforms\nKubernetes and container technologies\nGrafana, Prometheus, Splunk, ELK, or similar monitoring solutions\nCI/CD and automation frameworks\nMicrosoft Office Suite and engineering collaboration platforms\nPhysical Requirements:\nAbility to work in a standard office environment and use a computer for extended periods\nAbility to review technical documentation, logs, packet captures, and network performance data\nAbility to participate in meetings, technical reviews, and cross-functional collaboration sessions\nMay require occasional after-hours support, maintenance window participation, or on-call responsibilities\nAbility to remain stationary for extended periods while performing troubleshooting, analysis, and operational support activities\nThis job description may not be inclusive to the duties and responsibilities listed. Additional tasks may be assigned to the employee from time to time or the scope of the job may change as needed by business demands.\nAST SpaceMobile is an Equal Opportunity, at will Employer; employment is governed on the basis of merit, competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status.","description_format":"text","description_chars":6807,"description_truncated":false,"requirements":{"experience_years_min":3,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Satellite Communications","Satellite Manufacturing","Mobile Networks"],"lifecycle":[{"event":"open","at":"2026-10-28T18:05:48Z"}],"visa":[{"country":"US","licensed_sponsor":true,"evidence":"H-1B filings in 12 months: 12 · green card filings: 3","filings_12m":12,"filings_prev_12m":2,"green_card_filings_12m":3,"median_offered_wage_usd":139833,"route":null,"cap_exempt":false,"checked_at":"2026-10-29T16:27:21+00:00","sources":["US Department of Labor: LCA disclosure data (H-1B, H-1B1, E-3)","US Department of Labor: PERM disclosure data (green cards)"],"filings_for_role_12m":0}],"liveness":{"score":90,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.903,"p_room":1,"age_days":2,"expected_fill_days":115,"reasons":["conf:3","velocity","win:early","comp:brand"],"computed_at":"2026-10-31T05:58:55Z"},"pay":null,"html_url":"https://alion.io/job/ast-spacemobile-principal-gateway-engineer","json_url":"https://alion.io/job/ast-spacemobile-principal-gateway-engineer.json","meta":{"generated_at":"2026-10-31T22:40:30Z","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":35388,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-01T00:00:00Z"}},"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":2057930},"rest":"https://alion.io/mcp/rest/get_company?id=2057930"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fast-spacemobile-principal-gateway-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%2Fast-spacemobile-principal-gateway-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%2Fast-spacemobile-principal-gateway-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/ast-spacemobile-principal-gateway-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fast-spacemobile-principal-gateway-engineer"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3411681}},{"tool":"search_jobs","arguments":{"company":"ast-science.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3411681},"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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