Job Description:

We are seeking a Senior Network Engineer to support, design, and maintain our enterprise network infrastructure. This role owns day-to-day network operations while also driving architecture and configuration work for new deployments and upgrades. The ideal candidate has deep hands-on expertise with Layer 2/Layer 3 switching, enterprise firewalls, and VPN technologies, and can troubleshoot complex issues across multi-vendor environments with minimal supervision. Security experience is a strong plus.

Responsibilities include:

Network Operations & Support

Serve as an escalation point for complex network incidents, performing root cause analysis and driving issues to resolution within SLA
Monitor network health, capacity, and performance; proactively identify and remediate bottlenecks before they impact users
Troubleshoot connectivity issues across VLANs, routing, switching, DNS, DHCP, TCP/IP, and WAN/ISP links
Use packet capture and network monitoring tools to diagnose latency, packet loss, and application performance problems
Manage firmware upgrades, patching, and configuration backups following established change management procedures
Participate in an on-call rotation and support scheduled maintenance windows

Network Design & Architecture

Design scalable, resilient LAN, WAN, and remote-access solutions that support business growth
Develop network diagrams, IP addressing schemes, VLAN plans, and routing designs
Evaluate and recommend hardware, software, and circuits; participate in vendor selection and technical evaluations
Lead network components of infrastructure projects — site build-outs, migrations, refreshes, and cloud connectivity
Define and maintain network standards, baseline configurations, and technical documentation

Configuration & Implementation

Configure and maintain Layer 2/Layer 3 switches, including VLANs, trunking, spanning tree, port security, link aggregation, and inter-VLAN routing
Configure and maintain routing protocols (OSPF, BGP, EIGRP, static routing) across the enterprise WAN
Administer enterprise firewalls: security policies, NAT, application control, and access control rules
Build and maintain site-to-site IPsec VPN tunnels between offices, data centers, and third-party partners, including troubleshooting Phase 1/Phase 2 negotiation, rekeying, and tunnel stability issues
Deploy and support remote-access VPN (SSL/IPsec) for end users, including authentication integration and client troubleshooting
Implement network segmentation and access control between environments

Collaboration & Documentation

Maintain accurate network documentation, runbooks, and as-built diagrams
Provide technical mentorship to junior engineers and help-desk staff
Work with systems, application, and security teams on cross-functional initiatives
Communicate clearly with non-technical stakeholders during outages and project planning

Qualifications

Requirements:

 7+ years of hands-on enterprise network engineering experience (or 5+ with a relevant degree)

 Expert-level knowledge of Layer 2/Layer 3 switching and routing in production environments

 Strong hands-on experience administering enterprise firewalls (e.g., Palo Alto, Fortinet, Cisco ASA/Firepower, Check Point)

 Proven experience designing, deploying, and troubleshooting site-to-site and remote-access VPNs

 Solid grasp of TCP/IP, subnetting, DNS, DHCP, NAT, QoS, and network security fundamentals

 Demonstrated ability to troubleshoot complex, cross-domain issues under pressure

 Experience working within formal change management and documentation practices

 Strong written and verbal communication skills

Additional Skills Preferred (but not required):

 Security experience: firewall log analysis, incident response support, IDS/IPS, network segmentation, or vulnerability remediation

 Industry certifications: CCNP, CCIE, PCNSE, NSE 4+, JNCIP, CompTIA Security+, or equivalent

 Experience with NAC, 802.1X, RADIUS/TACACS+, or Zero Trust access models

 Cloud networking experience (AWS, Azure, or GCP — VPCs, transit gateways, VPN/Direct Connect)

 Wireless infrastructure experience (Cisco, Aruba, Meraki)

 SD-WAN deployment and management

 Hands-on experience with network automation frameworks and infrastructure-as-code practices (Python, Ansible, Terraform, Git)

 Experience with AIOps or AI-assisted network monitoring, observability, and analytics platforms

 Familiarity with compliance frameworks (NIST, PCI-DSS, HIPAA, SOC 2)

Education & Experience:

 Bachelor's degree in Computer Science, Information Technology, Computer Engineering, Telecommunications, or a related technical field — or equivalent combination of education, certifications, and hands-on experience

 Demonstrated experience supporting multi-site environments with 2000+ users and/or multiple data centers or branch locations

 Experience operating in a 24/7 production environment with defined SLAs, change control, and on-call responsibilities

 Prior experience mentoring junior engineers or serving as a technical escalation point

 Active or recent industry certification (CCNA/CCNP or vendor-equivalent) required; advanced certifications (CCIE, PCNSE, NSE 4+) strongly preferred

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Senior Network Engineer

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