Top Senior Network Engineer Jobs in NYC, NY

Designs, implements, administers, and supports secure LAN, WAN, and MAN infrastructure. Manages large-scale firewall and switch environments, configures VPNs, proxy services, and intrusion prevention systems, and troubleshoots network and security incidents. Analyzes logs and monitoring data, implements routing and resiliency solutions, collaborates with cloud providers and agencies, and evaluates emerging network technologies through research and proof-of-concept testing.

Design, operate, and improve Verition's global network platform across datacenters, cloud, and internet edge. Build high-performance datacenter fabrics (EVPN/VXLAN, BGP, leaf-spine), WAN and market connectivity, security, observability, and low-latency optimizations. Automate provisioning, configuration, validation, and monitoring using Python, APIs, Git, and IaC tools. Partner with cross-functional teams, provide production support/on-call, and drive platform reliability, performance, and scalability improvements.

The Senior Lead Network Engineer will enhance and maintain a large-scale network, evaluating setup, designing infrastructure, and providing consulting and testing services.

Design, deploy, and operate network security infrastructure including firewalls, segmentation, and DMZ. Collaborate with Cybersecurity and Network teams to detect/mitigate threats, evaluate new platforms, improve observability through scripting, and support business workflows securely.

Respond to and resolve level-two network issues escalated from NOC or service desk, perform minor software upgrades, run proactive performance assessments, assist clients and peers, maintain knowledge-base articles, participate in on-call rotation and after-hours support as needed.

Design, deploy, and maintain resilient enterprise and cloud network infrastructure for mission-critical 911 systems. Configure Fortinet and Cisco devices, troubleshoot connectivity and voice/video issues, perform production upgrades and packet captures, implement IaC-driven deployments, collaborate with vendors, and mentor junior engineers to ensure 24/7 reliability and security.

Design, implement, and improve security controls for operational technology (OT) networks in datacenter environments. Identify and remediate risks, create inventories and risk registers, coordinate penetration testing and vulnerability mitigation, embed security into OT systems, develop recovery and response playbooks, and present technical findings to stakeholders while partnering with engineering and third parties to reduce risk.

Design, implement, and support large-scale enterprise WAN/LAN networks. Responsibilities include routing/switching (OSPF/BGP), MPLS/VPLS, QoS, load balancing (F5/A10 with iRules), firewalls (Palo Alto/Checkpoint), network management and monitoring, capacity planning, upgrades, troubleshooting complex issues, vendor integration, documentation, mentoring, ITIL/change management, and occasional travel (up to 20%).

Design, deploy, automate, and support large-scale cloud network infrastructure across AWS, Azure, and GCP. Manage firewalls, Kubernetes networking, VPNs, DNS, BGP, monitoring, infrastructure as code, and network performance. Lead technical roadmaps, design reviews, troubleshooting, engineer onboarding, and team direction while participating in on-call support and occasional travel.

Design, deploy, and operate enterprise network infrastructure across data centers and cloud (GCP, AWS, Azure). Manage VPCs, VPNs, BGP, F5 BIG-IP, hybrid connectivity, and observability. Build IaC and automation with Terraform, GitLab CI/CD, and Ansible. Maintain monitoring, documentation, and participate in on-call support for critical incidents.

Design and deliver large-scale, high-performance network fabrics (Ethernet, RDMA, InfiniBand) for Azure workloads. Troubleshoot and root-cause hardware, OS, API, and management-tool issues; produce design and implementation documents; lead cross-team reviews; participate in on-call duties; and drive integrations with customers and third parties to ensure reliable, secure, and scalable network deployments.

Design, configure, operate, and troubleshoot multi-vendor IP networks. Implement and maintain MPLS/IP services, routing (OSPF/BGP), LAN technologies, QoS, IPSec VPNs, and firewalls. Lead migrations, upgrades, audits, documentation, and collaborate with operations and project teams to ensure performance and minimal downtime.

Design, deploy, and troubleshoot complex multi-vendor network topologies using BGP, OSPF, and MPLS. Implement MPLS-based Layer 2/3 VPNs, optimize routing and failover, configure WAN edge, peering, and route reflectors, and perform packet analysis and traffic shaping for high-performance backbone infrastructure.

Provision, activate, validate and troubleshoot DWDM/SONET/OTN services across multi-vendor optical transport platforms. Use TL1/CLI and NMS tools for topology, performance and fault management. Perform audits, tracing, upgrades, migrations and cutovers, maintain circuit/configuration documentation, and collaborate with teams during maintenance and deployments.

Design, implement, and maintain global network infrastructure including switching, routing, wireless, VPNs, firewalls, and cloud networking. Troubleshoot performance, enforce security policies, document configurations, collaborate with peers and vendors, provide on-call support, and travel to sites as needed.

The Senior Network Engineer manages enterprise network design, implementation, and operations, focusing on infrastructure, VoIP, security, troubleshooting, and project management.

Designs, implements, and administers enterprise network solutions; defines high-level network requirements and architecture; monitors availability, performance, and security controls; manages firewalls and access policies; supports cloud networking and automation; coordinates maintenance, change management, and vendor/developer interactions to meet SLAs.

Lead design and implementation of secure global network infrastructure. Architect security standards, conduct threat modeling and network assessments, build security automation and tooling, integrate controls with SDN/BGP/MPLS platforms, support incident response, and mentor engineering teams to maintain resilient, observable network security posture.

The Principal Network Engineer implements and supports network infrastructure for a federal healthcare EHR modernization program. Responsibilities include cloud and VLAN network configuration, microsegmentation, OCI connectivity troubleshooting, routing strategy, cybersecurity policy alignment, ATO artifact collection, deployment support, change management collaboration, vendor capability implementation, and technical documentation. The role is remote, supports cross-functional teams, and requires obtaining and maintaining a Public Trust Level 5 clearance.

Designs, configures, maintains, monitors, and troubleshoots LAN/WAN infrastructure, firewalls, VPNs, wireless networks, and Cisco and Fortinet devices across client environments. Resolves complex incidents, supports migrations and deployments, documents configurations, collaborates with security teams, participates in service transitions, and mentors junior engineers. The role also values network automation, scripting, ITIL practices, and cloud networking experience in Azure and AWS.

Maintain and implement nationwide network infrastructure; administer switches, routers, firewalls, load balancers and proxies; configure and troubleshoot LAN/WAN and WiFi; support level 2/3 escalations; document networks; manage firmware/software lifecycle.

Designs, implements, secures, and supports hybrid enterprise networks across Azure, AWS, on-premises data centers, offices, and remote locations. Responsibilities include cloud connectivity, routing, switching, firewalls, VPNs, monitoring, troubleshooting, Zero Trust controls, high availability, disaster recovery, and Infrastructure as Code automation. The engineer leads migration and modernization initiatives, coordinates with vendors, supports office deployments, documents network environments, participates in on-call support, and mentors junior staff.

Build and design proxy infrastructure from scratch, implement rotation systems, manage IP reputation, optimize for performance, and develop reverse proxy systems for various proxy types.

Designs, analyzes, and supports telecommunications networks (voice, data, video, wireless). Develops installation and maintenance plans, defines system requirements, coordinates with IT teams, and implements network services and contingency solutions for DoD LANs.

Lead design, implementation, and analysis of telecommunications networks (voice, data, video, wireless). Provide technical direction, cost evaluation, network specifications, installation planning, reporting, and coordinate with other IT professionals through project lifecycle.