Network Infrastructure Engineer

This range is provided by Lexicon Solutions. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more. Base pay range $52.00/hr - $72.00/hr Direct message the job poster from Lexicon Solutions Lead Technical Recruiter / Sr. Account Manager at Lexicon Solutions Type: 2-year contracts (potential for extension) Our client keeps the Portland metro moving — buses, MAX light rail, streetcar, and more. Behind that is a mission‑critical network that supports CCTV, rail systems, voice, data, and real‑time vehicle communications. We’re supporting our client as they add two Senior Network Infrastructure Engineers to their Network & Server team. These roles focus on high‑availability, converged network infrastructure in a complex enterprise environment where reliability and safety really matter. We’re recruiting for two senior‑level roles 1. Sr. Network Engineer – Firewall / Security Focus Lead design, deployment, and support of next‑gen firewalls (Palo Alto preferred) in a highly segmented environment. Help build out new network modules to isolate services (e.g., separating CCTV from rail environments) and reduce blast radius. Serve as a primary/secondary SME for firewall policy, rule sets, and security best practices (PCI/HIPAA exposure is a plus) 2. Sr. Network Engineer – Wireless / Mobility (Cisco / Meraki) Focus Own design and support of Cisco wireless controllers and Meraki environments across yards, facilities, and vehicles. Support existing operations where vehicles use Wi‑Fi and cellular to offload CCTV footage, and help drive the long‑term move toward real‑time cellular connectivity across the fleet. Work on projects involving mobile/vehicle RF, MPLS networking, and future cellular‑first architectures. If you’re stronger on one side (firewalls or wireless/Meraki) but have strong route/switch fundamentals and are comfortable learning, our client is open to candidates who can grow into the tools. In both roles, you’ll: Plan, design, implement, and manage our client’s IT communication and network infrastructure, with an emphasis on high availability and security. Support and improve a complex, converged environment: Cisco switches/routers, wireless, firewalls, VPN/remote access, and monitoring/platform tools. Troubleshoot network and server issues in a mission‑critical 24/7 environment , quickly resolving outages and degraded service in coordination with internal teams and vendors. Integrate with Microsoft‑centric platforms: Active Directory, M365 hybrid , virtualization, backup, and real‑time monitoring systems. Participate in, and sometimes lead, complex projects from design through implementation and cutover. Help drive IT process maturity , documentation, and cross‑team collaboration as they continue to modernize their infrastructure and practices. Some off‑hours / on‑call participation is expected to support critical systems. Core background (senior‑level) ~ 4+ years of hands‑on experience in network management and network security in a complex enterprise setting. Strong experience designing, implementing, and supporting multi‑site network environments. Proven background supporting mission‑critical systems (public sector, utilities, transportation, healthcare, financial services, etc. all translate well). Technical strengths we’re targeting (mix across both roles) Strong routing/switching (Cisco) and converged network design. Firewall / Security role: Next‑gen firewalls (ideally Palo Alto , but Fortinet/Check Point/etc. are also relevant). Network segmentation, policy design, and rule‑set hygiene. Wireless / Mobility role: Cisco wireless controllers and Meraki wireless management. Experience with large‑scale Wi‑Fi deployments and/or vehicle/yard environments is a plus. Exposure to MPLS , mobile/vehicle RF networking, CCTV, and voice/telephony is helpful. Experience with cloud/hybrid (Azure and/or AWS) is a nice‑to‑have. Relevant certifications (CCNA/CCNP, Network+, Security+, Microsoft, etc.) are appreciated but not required. Soft Skills & Culture Fit Our client is very focused on collaboration and communication as they raise IT maturity across the organization. They’re looking for someone who: Communicates clearly with both technical and non‑technical stakeholders. Can translate technical tradeoffs into business language and help shape requirements. Works well across teams instead of in silos. Is curious, adaptable, and willing to learn new tools (e.g., Palo Alto, Meraki) as long as the core fundamentals are solid. Cares about public service, safety, and reliability for the community. Seniority level Mid‑Senior level Employment type Contract Job function Information Technology Referrals increase your chances of interviewing at Lexicon Solutions by 2x #J-18808-Ljbffr