Senior Network Engineer

Duties and Responsibilities

• Implement and support enterprise LAN, WAN, WLAN, VPN, firewall, network access control, cloud connectivity, and SD-WAN technologies.
• Independently complete network engineering assignments and tactical infrastructure projects with limited supervision.
• Configure and maintain routers, switches, firewalls, wireless infrastructure, VPN services, and related network platforms.
• Implement production network changes, including: o VLANs, trunks, port channels, and switch-port configurations o Static and dynamic routing changes o Firewall policies, NAT rules, security zones, and DMZ configurations o Site-to-site and remote-access VPN configurations o Wireless SSIDs, authentication policies, and access controls o Network Access Control and AAA integrations o WAN circuit activations, migrations, and failover configurations
• Troubleshoot complex Layer 2 and Layer 3 network incidents involving routing, switching, wireless, firewalls, VPNs, DNS, DHCP, internet connectivity, and application traffic flows.
• Perform packet-level and protocol-level analysis to identify root causes of performance, availability, and connectivity issues.
• Lead or participate in network infrastructure projects such as office openings, site relocations, hardware refreshes, network migrations, circuit upgrades, and technology deployments.
• Coordinate circuit installations, upgrades, cross-connects, handoffs, testing, migrations, terminations, and outage remediation with carriers, local exchange carriers, and data-center providers.
• Develop implementation plans, test plans, rollback procedures, validation steps, and supporting documentation for network changes.
• Maintain accurate logical and physical network diagrams, IP address documentation, circuit inventories, configuration standards, and operational procedures.
• Monitor network availability, capacity, performance, and configuration compliance using Solar. Winds Orion or similar network-management platforms.
• Review monitoring alerts and performance trends to identify recurring issues, capacity constraints, and opportunities for proactive improvement.
• Ensure network-device configurations are backed up, standardized, and maintained in accordance with organizational security and operational requirements.
• Perform root-cause analysis for significant incidents and recommend corrective and preventative actions.
• Provide technical guidance to service desk, infrastructure, security, application, and site-support teams for network-related issues.
• Coordinate and validate work performed by telecommunications carriers, managed service providers, cabling vendors, field technicians, and other third parties.
• Participate in an on-call rotation and provide escalation support for critical network incidents as required.
• Follow established Change Management, Incident Management, Problem Management, and configuration-management processes.
• Contribute to network standards, reference architectures, lifecycle planning, resiliency improvements, and technology evaluations. Technical Skills
• Strong working knowledge of enterprise TCP/IP networking, including subnetting, routing, switching, DNS, DHCP, NAT, and packet flow.
• Hands-on experience configuring and troubleshooting Layer 2 technologies such as: o VLANs o Spanning Tree Protocol o Link aggregation and port channels o MAC address learning o Switching loops and broadcast-domain issues
• Hands-on experience configuring and troubleshooting Layer 3 technologies, including static routing and dynamic routing protocols such as OSPF and BGP.
• Experience supporting Cisco, Juniper, Meraki, or comparable enterprise routing and switching platforms.
• Experience managing enterprise firewalls, security policies, network address translation, security zones, and site-to-site or remote-access VPNs.
• Experience with enterprise wireless networking, including 802.11 standards, SSIDs, authentication, roaming, interference, and wireless troubleshooting.
• Working knowledge of Network Access Control and AAA technologies, including 802.1X, RADIUS, and TACACS+.
• Experience supporting WAN connectivity such as internet circuits, MPLS, broadband, private connectivity, or SD-WAN.
• Ability to use technical troubleshooting tools such as packet captures, ping, traceroute, route analysis, interface statistics, logs, and network-monitoring platforms.
• Experience with network monitoring and configuration-management tools such as Solar. Winds Orion or comparable products.
• Ability to create and maintain network diagrams using Microsoft Visio, Lucidchart, or similar tools.
• Strong understanding of network resiliency, redundancy, high availability, and failover concepts. Professional Skills and Traits
• Demonstrated ability to independently troubleshoot complex technical problems and drive them through resolution.
• Strong analytical skills with the ability to distinguish between network, security, systems, application, carrier, and end-user issues.
• Ability to assess risk, prioritize technical work, and implement changes safely in production environments.
• Clear written and verbal communication skills, including the ability to explain technical issues to both technical and nontechnical stakeholders.
• Strong documentation habits and attention to configuration accuracy.
• Ability to manage multiple projects, incidents, and operational priorities without losing ownership or follow-through.
• Comfortable working with geographically distributed teams, vendors, carriers, and managed service providers.
• Collaborative mindset and willingness to share technical knowledge with other members of the IT organization.

Minimum Qualifications

• Available to work on Time Zone AMER at 07.00am EST or Time Zone EMEA at 07.00am GTM
• Four or more years of hands-on experience in an enterprise Network Engineering, Network Operations, or Infrastructure Engineering role.
• Demonstrated experience independently configuring and supporting production routers, switches, firewalls, wireless infrastructure, or SD-WAN platforms.
• Experience implementing production network changes using documented implementation, validation, and rollback procedures.
• Experience troubleshooting enterprise network incidents beyond basic connectivity and end-user support.
• Experience supporting multi-site network environments.
• Experience coordinating circuit installations, upgrades, migrations, handoffs, and outage remediation with telecommunications carriers.
• Bachelor’s degree in Information Technology, Computer Science, Engineering, or a related field, or an equivalent combination of education, technical training, and relevant professional experience.

Preferred Qualifications

• CCNP Enterprise, JNCIS, PCNSE, Fortinet FCP, Meraki certification, or another comparable professional-level networking certification.
• ITIL 4 Foundation certification or practical experience working within formal Change, Incident, and Problem Management processes.
• Experience supporting globally distributed network environments.
• Experience with public-cloud networking in AWS or Microsoft Azure
• Experience with network automation, scripting, APIs, infrastructure as code, or configuration-management tools.
• Familiarity with network-security concepts, segmentation, zero-trust architecture, and security-control implementation.
• Experience participating in network architecture, capacity planning, hardware lifecycle planning, or technology-selection initiatives. Indicators of Success Within this role, a successful candidate will be able to:
• Independently implement standard network changes and infrastructure deployments.
• Resolve complex network incidents using structured troubleshooting and evidence-based analysis.
• Take technical ownership of assigned projects from planning through implementation and documentation.
• Improve network reliability by identifying recurring problems and implementing permanent corrective actions.
• Maintain accurate documentation and follow disciplined production-change practices.
• Effectively coordinate technical activities across internal teams, vendors, carriers, and service providers Additional notes Hands-on firewall configuration and management experience Strong understanding of Layer 2 and Layer 3 network protocols Ability to confidently answer technical questions related to firewalls Prior experience working as a Network Engineer Broader network engineering expertise beyond support-level responsibilities