Senior Network Engineer - Network Architect

Responsibilities Act as the subject matter expert for SimSpace network and network security infrastructure Design, implement, support, and secure enterprise network infrastructure and software‑defined networking solutions Configure and maintain complex VMware environments leveraging NSX‑T, DVS, and software‑defined networking technologies Contribute to the design and implementation of resilient, secure, and scalable network architectures Configure and troubleshoot virtual networking, VLANs, VRFs, traffic forwarding, and hybrid cloud connectivity Lead network modernization initiatives, including technology refreshes, architecture improvements, and capacity planning Troubleshoot all levels of network connectivity issues including, but not limited to, network outages, switch failures, network performance, NIC cabling, TCP/IP configuration, etc. Perform troubleshooting of complex network and security incidents including outages, performance issues, routing failures, VPN issues, and other network events Support enterprise LAN/WAN, internet connectivity, data center networking and cloud networking initiatives Manage and optimize secure web access technologies including content filtering, secure web proxy, SSL inspection, DLP, and zero‑trust remote access platforms Administer next‑generation firewall infrastructure, including firewall policies, ACLs, NAT, IPS/IDS, VPNs, routing, segmentation, and high‑availability configurations Manage web application firewall (WAF) and edge security technologies, including rulesets, custom protections, bot mitigation, and application‑layer threat prevention Support centralized logging, security monitoring, alerting, and threat analysis activities across network and security platforms Assess existing network and security technologies to identify opportunities for modernization, improved security posture, and operational efficiency Maintain documentation, standards, and operational procedures for network and security infrastructure Provide technical leadership, mentorship, and guidance to junior engineers and operational staff Participate in maintenance activities, infrastructure upgrades, and business‑driven technology projects Requirements At least 8 years of network engineering experience At least 5 years of hands‑on experience in network security or security infrastructure Strong understanding of enterprise networking concepts, protocols, and infrastructure design Deep knowledge of routing, switching, TCP/IP, DNS, BGP, OSPF, VLANs, VRFs, VPNs, and network segmentation Experience designing and supporting enterprise LAN, WAN, and data center network architectures Experience managing next‑generation firewalls, secure web gateways, web‑application firewalls, and zero‑trust security platforms Hands‑on experience with firewall policy management, NAT, IPS/IDS, VPN technologies, and routing protocols Strong understanding of web certificates, PKI, TLS/SSL encryption, certificate lifecycle management, and troubleshooting certificate‑related connectivity or inspection issues Experience with LAN/WAN design including IP allocations, segmentation, VLAN implementation, and hybrid cloud networking Proficiency with packet captures, traffic analysis, and network troubleshooting methodologies Familiarity with vulnerability management and security assessment tools Experience with monitoring and observability platforms Ability to lead technical implementations, infrastructure upgrades, and operational initiatives Ability to quickly learn and adapt to new technologies and platforms Strong written and verbal communication skills CCNP Enterprise, CCIE Enterprise Infrastructure, or equivalent networking certifications Experience with network automation frameworks and scripting technologies Experience supporting large‑scale enterprise or data center environments Experience supporting compliance frameworks such as SOC 2, ISO 27001, or CMMC Understanding of AI and automation technologies that improve network operations, monitoring, troubleshooting, and operational efficiency #J-18808-Ljbffr Jobtailor