Network Reliability Engineer L3

Role: Network Reliability Engineer L3

Location: Burlington City , NJ (Onsite)

Primary Skill - Need Expertise on Fortinet devices , FortiGate Firewall, Forti Manager , Forti Analyzer, SDWAN Fortinet

 

10+ years of experience supporting enterprise network environments across LAN, WAN, WLAN, Security, and Data Center technologies.

Key Responsibilities

• Develop backend and full-stack features using Python, Django, and PostgreSQL.
• Build and maintain REST / GraphQL APIs.
• Create automation workflows for network operations and approvals.
• Work with MongoDB, Redis, Celery, and RabbitMQ for data handling and background tasks.
• Deploy and manage applications using Docker and Kubernetes.
• Support automation using Terraform and Ansible.
• Build CI/CD pipelines using GitLab CI, Jenkins, or GitHub Actions.
• Integrate with tools such as ServiceNow, Git, and network vendor APIs.
• UI full stack experience for JS and HTML catalogs creations.

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 (NexACI), WLAN, firewalls, or load balancers.
• Automation & Net DevOps:
• 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.
• Observability: Experience with at least one monitoring stack (SolarWinds, Cisco DNAC, ThousandEyes, PrometheGrafana, 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.