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SISL Infotech UK
Actively Hiring
System Integrator for Businesses

Senior Network Engineer

Posted: 1 week ago• Recruiter recently active
Job Location
Remote Work Policy

In office

Visa Sponsorship

Not Available

RelocationAllowed
Skills
Python
Git
BGP
DNS
TCP/IP
WAN Optimization
Ospf
EIGRP
Ansible
WLAN
DHCP
servicenow
QoS
Firewalls
Vlans
Terraform
Solarwinds
thousandeyes
Ips
STP
Load Balancers
CI/CD
CI/CD Pipelines
Infrastructure As Code (IaC)
SD-Wan
Cisco DNAC
VPNs
VRFs
Enterprise LAN/WAN
HSRP/VRRP
Prometheus/Grafana
Fortinet Secure SD-WAN
Splunk/ELK
Data Center (Nexus/ACI)
NetBox/Nautobot
VDOM Design & Administration
High Availability (HA) Deployment & Troubleshooting
FortiGate Administration & Troubleshooting
FortiManager Configuration & Policy Management
FortiAnalyzer Log Analysis & Reporting
FortiAuthenticator (MFA, RADIUS, TACACS+)
FortiEMS & Endpoint Integration
FortiOS Upgrades, Patching & Lifecycle Management
Security Policy Design & Optimization
Antivirus & Application Control
Web Filtering & DNS Filtering
SSL Inspection & Decryption
Threat Prevention & Security Hardening
Security Zone Segmentation
Rule Base Optimization & Cleanup
Access Control & Governance
SLA-Based Path Selection
Overlay VPN Management
Link Health Monitoring
SD-WAN Design & Troubleshooting

About the job

Job Title - Sr. Network Engineer

Location - Burlington, NJ 08016

Duration - Fulltime

Job Description -

Technical Skills

  • Experience in network engineering / NOC / NRE / NetDevOps roles.
  • Core Networking: Strong in Routing & Switching (BGP, OSPF, EIGRP, STP, VLANs, VRFs, HSRP/VRRP, etc.).
  • Network Domains: Hands-on in one or more areas – Enterprise LAN/WAN, SD-WAN, Data Center (Nexus/ACI), WLAN, firewalls, or load balancers.
  • Automation & NetDevOps:
  • Design, build, and maintain network automation using Python, Ansible, Terraform, Git, CI/CD.
  • Implement Infrastructure as Code (IaC) for configuration and lifecycle management.
  • Integrate workflows with Source of Truth (NetBox/Nautobot) and ITSM tools (ServiceNow).
  • Develop reusable modules, playbooks, and pipelines for provisioning, upgrades, backups, and compliance.
  • Use Python with network libraries (Netmiko, NAPALM, pyATS, etc. as a plus).
  • Git & CI/CD: Comfortable with Git (branches, merge requests) and basic CI/CD pipelines.
  • VDOM Design & Administration
  • High Availability (HA) Deployment & Troubleshooting
  • Observability: Experience with at least one monitoring stack (SolarWinds, Cisco DNAC, ThousandEyes, Prometheus/Grafana, Splunk/ELK, etc.).
  • Protocols & Troubleshooting: Strong understanding of TCP/IP, DNS, DHCP, VPNs, QoS, and proven ability to troubleshoot complex network issues under pressure.
  • Collaboration & Design:
  • Work closely with network architects, operations, SRE, and application teams to embed reliability by design.
  • Contribute to network design reviews focusing on resilience, failure domains, capacity, and automation readiness.
  • Documentation & Mentoring:
  • Create and maintain runbooks, playbooks, and documentation for ops teams.
  • Mentor engineers on NetDevOps, automation, and reliability best practices.
  • FortiGate Administration & Troubleshooting
  • FortiManager Configuration & Policy Management
  • FortiAnalyzer Log Analysis & Reporting
  • FortiAuthenticator (MFA, RADIUS, TACACS+)
  • FortiEMS & Endpoint Integration
  • FortiOS Upgrades, Patching & Lifecycle Management

Firewall & Security Skill –

  • Security Policy Design & Optimization
  • IPS, Antivirus & Application Control
  • Web Filtering & DNS Filtering
  • SSL Inspection & Decryption
  • Threat Prevention & Security Hardening
  • Security Zone Segmentation
  • Rule Base Optimization & Cleanup
  • Access Control & Governance

SD-WAN Skills-

  • Fortinet Secure SD-WAN
  • SLA-Based Path Selection
  • Overlay VPN Management
  • WAN Optimization
  • Link Health Monitoring
  • SD-WAN Design & Troubleshooting

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