{"id":3235744,"url":"https://alion.io/job/dtn-senior-network-engineer","title":"Senior Network Engineer","company":{"id":1781197,"name":"DTN","domain":"dtn.com","url":"https://alion.io/company/dtn-com","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":7,"ghost_share":0,"stale_share":0.857,"repost_share":0,"time_to_fill_p50_days":39,"computed_at":"2026-10-29T05:49:05Z"}},"role":"Networking","role_family":"Networking","seniority":"senior","employment_type":"full_time","work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"board_field","remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Dallas, United States"],"countries":["US"],"hiring_countries":["US"],"hiring_countries_total":1,"salary":null,"salary_estimate":{"min_usd":82000,"max_usd":147000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":51},"experience_years_min":10,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Ansible","optional":false},{"name":"AWS","optional":false},{"name":"Azure","optional":false},{"name":"BGP","optional":false},{"name":"DNS","optional":false},{"name":"Incident Management","optional":false},{"name":"OSPF","optional":false},{"name":"Python","optional":false},{"name":"Terraform","optional":false},{"name":"VLAN","optional":false},{"name":"VPN","optional":false}],"status":"live","first_seen_at":"2026-10-22T00:00:00Z","employer_posted_date":"2026-10-22","last_verified_at":"2026-10-29T12:50:10Z","board_verified":true,"closed_at":null,"days_open":7,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":7},"description":"For decades, DTN has been the silent force behind some of the world’s most critical industries-helping businesses navigate complexity, uncertainty, and risk with smarter, faster decisions. From agriculture to energy to weather intelligence, our proprietary Operational Decisioning Platform transforms raw data into decision-grade insights-enabling companies to optimize supply chains, ensure market stability, and safeguard infrastructure against disruption. We don’t follow trends-we set the standard for precision, trust, and operational impact.\nDTN is at an exciting inflection point. Building off a foundation of financial strength, profitability, and industry trust, we’re accelerating growth and expanding our global footprint. Our purpose-built solutions-powered by AI and honed by decades of vertical expertise-are helping some of the world’s most significant enterprises thrive amid operational constraints and uncover new opportunities in a fast-changing world.\nJob Description:\nDTN is seeking an experienced, hands-on Senior Network Engineer for a project/contract engagement supporting enterprise network infrastructure projects and day-to-day network operations.\nIn this role, you will lead and execute complex network infrastructure initiatives involving network migrations, cloud networking, F5 load balancing, enterprise firewalls, routing and switching, and ongoing network infrastructure support. You will work across on-premises data centers, wide area networks (WAN), Internet connectivity, and cloud environments to maintain secure, reliable, and highly available enterprise network services.\nThe ideal candidate brings 10+ years of enterprise network engineering experience, expert-level knowledge of F5 BIG-IP, strong routing and firewall expertise, and a proven ability to lead infrastructure projects from technical design through implementation and operational handoff.\nThis position requires technical leadership, detailed implementation planning, cross-functional coordination, and advanced operational troubleshooting. You will take ownership of assigned projects, proactively identify technical dependencies and risks, develop comprehensive implementation and rollback plans, and execute network changes with minimal business disruption.\nAlongside project delivery, you will support daily enterprise network operations, incident response, maintenance, troubleshooting, and service reliability. The successful candidate must effectively balance project commitments with operational priorities and participate in a rotating on-call schedule, including scheduled after-hours support.\nWhat You Will Be Responsible For\nF5 Load Balancing and Application Delivery\nDesign, configure, administer, maintain, and troubleshoot F5 BIG-IP environments, with a strong emphasis on Local Traffic Manager (LTM).\nManage virtual servers, pools, pool members, health monitors, iRules, persistence profiles, network address translation (NAT), and related application delivery configurations.\nTroubleshoot complex application connectivity issues involving load balancers, enterprise firewalls, network routing, DNS, SSL/TLS, and backend application services.\nSupport high-availability configurations, failover testing, software upgrades, and platform migrations.\nImplement, maintain, and troubleshoot SSL offloading and certificate-related configurations.\nPlan and execute F5 migrations, including application dependency analysis, configuration migration, testing, validation, and production cutover activities.\nSupport F5 Distributed Cloud (F5 XC) implementations and migrations, including transitions of services from F5 BIG-IP to F5 Distributed Cloud where applicable.\nEnsure application delivery solutions meet enterprise requirements for availability, reliability, performance, and operational continuity.\nEnterprise Routing and Switching\nDesign, implement, maintain, and troubleshoot enterprise Layer 2 and Layer 3 network infrastructure.\nConfigure, administer, and troubleshoot routing protocols, including Border Gateway Protocol (BGP), Open Shortest Path First (OSPF), and Enhanced Interior Gateway Routing Protocol (EIGRP).\nManage route redistribution, routing policies, and complex network routing configurations.\nSupport Cisco routers and switches, including Cisco Nexus platforms where applicable.\nTroubleshoot virtual local area networks (VLANs), trunking, Spanning Tree Protocol (STP), inter-VLAN routing, and complex Layer 2/Layer 3 connectivity issues.\nAnalyze network routing paths, infrastructure dependencies, and traffic flows to support application migrations and network changes.\nImplement routing and switching changes required for infrastructure migrations, cloud connectivity, and network upgrades.\nSupport network resiliency, redundancy, fault tolerance, and high-availability designs.\nFirewall Administration and Network Security\nConfigure, administer, maintain, and troubleshoot enterprise firewall platforms, particularly Palo Alto Networks and Cisco ASA/Firepower.\nDevelop, implement, and validate firewall policy changes, NAT rules, virtual private network (VPN) configurations, and high-availability configurations.\nSupport firewall migrations, including rule conversion, policy cleanup, configuration validation, and verification of security controls.\nAnalyze firewall policies, traffic logs, and session flows to identify and resolve network connectivity and application access issues.\nCollaborate with information security teams to ensure network changes comply with established security requirements and change management standards.\nSupport Palo Alto Panorama for centralized firewall administration, policy management, and deployment.\nMaintain secure and reliable connectivity across enterprise network environments while minimizing operational risk.\nCloud Networking and Hybrid Infrastructure\nDesign, implement, support, and troubleshoot network connectivity between on-premises data centers and cloud environments, particularly Amazon Web Services (AWS), Oracle Cloud Infrastructure (OCI), and Microsoft Azure.\nSupport cloud networking architectures involving AWS Virtual Private Clouds (VPCs), Azure Virtual Networks (VNets), and OCI Virtual Cloud Networks (VCNs).\nConfigure and troubleshoot cloud subnets, route tables, routing configurations, and network security controls.\nConfigure, maintain, and troubleshoot cloud routing, site-to-site VPN connections, AWS Direct Connect, Azure ExpressRoute, and OCI FastConnect.\nSupport AWS Transit Gateway and equivalent cloud routing architectures.\nAnalyze and troubleshoot cloud security groups, network access control lists (NACLs), cloud firewall policies, and routing dependencies.\nLead or support the migration of applications and network services from on-premises data centers to cloud environments.\nTroubleshoot end-to-end application connectivity across data centers, WAN infrastructure, Internet connections, firewalls, load balancers, and cloud platforms.\nCoordinate with cloud, infrastructure, application, and security teams to support reliable hybrid network connectivity.\nDay-to-Day Network Operations and Infrastructure Support\nSupport daily operations of enterprise network infrastructure across data centers, corporate locations, WAN, wireless networks, Internet connectivity, and cloud environments.\nMonitor network health, availability, performance, and capacity, proactively identifying and resolving issues before they affect business-critical services.\nTroubleshoot and resolve network incidents involving routers, switches, firewalls, load balancers, wireless infrastructure, routing protocols, and cloud connectivity.\nProvide advanced technical escalation support for complex network issues, collaborating with other IT teams to restore services and minimize business impact.\nPerform routine network maintenance, configuration changes, software upgrades, security updates, and hardware lifecycle activities.\nManage network change requests, including impact assessments, implementation planning, testing, documentation, and post-change validation.\nSupport and troubleshoot BGP, OSPF, EIGRP, VLANs, Layer 2/Layer 3 connectivity, firewall policies, NAT, VPNs, and F5 load-balancing services.\nReview network monitoring alerts, logs, performance metrics, and traffic flows using tools such as SolarWinds, NetBrain, or equivalent monitoring and troubleshooting platforms.\nParticipate in incident management, root cause analysis, problem management, and corrective action implementation to prevent recurring issues.\nMaintain accurate network diagrams, device inventories, configuration documentation, operational procedures, and troubleshooting records.\nCollaborate with telecommunications carriers, service providers, technology vendors, and internal IT teams to resolve connectivity and infrastructure issues.\nBalance ongoing operational responsibilities with assigned infrastructure projects, maintaining day-to-day network reliability while meeting project milestones and delivery timelines.\nNetwork Infrastructure Project Management and Technical Delivery\nOwn assigned network infrastructure projects from requirements gathering and technical design through implementation, validation, and operational handoff.\nDevelop comprehensive technical designs, implementation plans, project schedules, migration runbooks, cutover plans, and detailed rollback procedures.\nIdentify technical dependencies, assess implementation risks, and establish appropriate mitigation strategies before executing changes.\nCoordinate project resources and technical activities across application, server, security, cloud, infrastructure, and external vendor teams.\nLead technical implementation meetings, maintenance-window activities, migration cutovers, and post-implementation reviews.\nCommunicate project status, risks, technical dependencies, implementation issues, and recommendations to technical stakeholders and management.\nMaintain accurate network diagrams, configuration records, application dependency maps, and project documentation.\nEnsure assigned project deliverables are completed within established timelines and meet technical, security, and operational requirements.\nPlan and execute network changes with appropriate validation, rollback readiness, and minimal disruption to business services.\nOn-Call, Incident Response, and After-Hours Support\nParticipate in a rotating on-call schedule supporting business-critical enterprise network infrastructure.\nRespond to critical network incidents and technical escalations outside normal business hours, including evenings, weekends, and holidays as scheduled.\nSupport planned after-hours maintenance windows, infrastructure upgrades, network migrations, and emergency changes.\nTroubleshoot and resolve production network issues, coordinating with internal IT teams, service providers, and technology vendors as necessary.\nFollow established incident response, escalation, change management, and communication procedures to minimize business disruption and support timely service restoration.\nWhat You Will Bring to the Position\nEnterprise Network Engineering Experience\n10+ years of hands-on network engineering experience within enterprise environments.\nProven experience designing, implementing, maintaining, and troubleshooting complex enterprise network infrastructure.\nDemonstrated ability to support day-to-day operations of a large enterprise network while simultaneously delivering infrastructure projects.\nF5 Load Balancing and Application Delivery\nExpert-level hands-on experience with F5 BIG-IP Local Traffic Manager (LTM).\nDeep knowledge of F5 virtual servers, pools, pool members, health monitors, iRules, persistence, SSL offloading, NAT, and high-availability configurations.\nExperience performing F5 software upgrades, platform migrations, and complex application connectivity troubleshooting.\nRouting, Switching, and Network Security\nStrong routing and switching expertise, including BGP, OSPF, EIGRP, route redistribution, VLANs...","description_format":"text","description_chars":17721,"description_truncated":true,"requirements":{"experience_years_min":10,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["401k 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