{"id":2673120,"url":"https://alion.io/job/ltm-network-engineer-l3","title":"Network Engineer L3","company":{"id":9353,"name":"Ltm","domain":"ltm.com","url":"https://alion.io/company/ltm","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Career site","truth_index":{"grade":"B","score":75,"open_postings":137,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-10-16T05:45:00Z"}},"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":["Houston, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":91000,"max_usd":187000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":413},"experience_years_min":6,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"BGP","optional":false},{"name":"ITIL","optional":false},{"name":"OSPF","optional":false},{"name":"VPN","optional":false},{"name":"AWS","optional":true},{"name":"Azure","optional":true}],"status":"live","first_seen_at":"2026-10-07T00:00:00Z","employer_posted_date":"2026-10-16","last_verified_at":"2026-10-16T22:34:30Z","board_verified":true,"closed_at":null,"days_open":9,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":9},"description":"Location: Houston, TX (3 days Hybrid)Max Salary : $140K+BenefitsOnly VI ProfilesJob Description Network Operations Engineer L3\nRole Summary\nWe are looking for a Network Operations L3 Engineer to provide advanced operational support troubleshooting and implementation for enterprise network infrastructure The role involves handling complex incidents leading changes and acting as an SME for Cisco Firewalls and Routing Switching environments\nKey Responsibilities\nProvide L3 support for production network environments including incident resolution root cause analysis and preventive actionsTroubleshoot and resolve complex network issues related to routing switching and firewall technologiesConfigure manage and optimize Cisco Firewalls ASA Firepower FTD includingACLs NAT VPN SitetoSite Remote AccessPolicy changes upgrades and failover scenariosDesign configure and support Routing Switching infrastructureRouting protocols OSPF BGP EIGRPSwitching technologies VLANs STP HSRPVRRP PortChannelsLead and execute network changes upgrades migrations and maintenance activities following ITIL processesAct as escalation point for L2NOC teams and mentor junior engineersParticipate in problem management RCA documentation and service improvement initiativesWork closely with security cloud and application teams during outages and project activitiesMaintain technical documentation HLDLLD SOPs runbooks change recordsMandatory Skill Sets\nCisco FirewallsCisco ASA Firepower FTDNAT ACLs IPsec SSL VPNHigh Availability upgradesRouting SwitchingStrong handson with Cisco Routers SwitchesOSPF BGP EIGRP\nVLANs STP HSRPVRRP VPC EtherChannel\nTroubleshooting\nDeep packetlevel and protocollevel troubleshooting\nHandling highseverity incidents in production\nGood to Have\nExposure to Fortinet Palo Alto firewalls\nExperience with Data Center or Enterprise networks\nMonitoring tools SolarWinds PRTG SNOW\nBasic understanding of cloud networking Azure AWS connectivity\nITIL process awareness Incident Change Problem Management\nExperience Qualifications\n6 to 10 years of experience in Network Operations Network Support\nStrong experience in L3 operational support roles\nCisco certifications CCNP CCIE preferred not mandatory","description_format":"text","description_chars":2203,"description_truncated":false,"requirements":{"experience_years_min":6,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Media & Entertainment","Creative Agencies","Branding","Enterprise Apps Implementation Partners"],"lifecycle":[{"event":"open","at":"2026-10-16T04:28:04Z"}],"visa":[],"liveness":{"score":53,"band":"ok","label":"Likely open","p_open":1,"p_active":0.588,"p_room":0.9,"age_days":9,"expected_fill_days":24,"reasons":["conf:1","stale_co","velocity","win:mid","comp:brand"],"computed_at":"2026-10-16T05:45:00Z"},"pay":null,"html_url":"https://alion.io/job/ltm-network-engineer-l3","json_url":"https://alion.io/job/ltm-network-engineer-l3.json","meta":{"generated_at":"2026-10-16T22:41:24Z","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":4282,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-17T00:00:00Z"}},"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":9353},"rest":"https://alion.io/mcp/rest/get_company?id=9353"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fltm-network-engineer-l3"},{"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%2Fltm-network-engineer-l3"},{"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%2Fltm-network-engineer-l3"},{"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/ltm-network-engineer-l3\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fltm-network-engineer-l3"}]}