Network Reliability Engineer L3/L4

Job Description – Network Reliability Engineer L3/L4

Experience

8+ 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 (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, Thousand Eyes, 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 Net DevOps, automation, and reliability best practices.

· FortiGate Administration & Troubleshooting

· Forti Manager Configuration & Policy Management

· Forti Analyzer Log Analysis & Reporting

· Forti Authenticator (MFA, RADIUS, TACACS+)

· Forti EMS & Endpoint Integration

· Fort iOS Upgrades, Patching & Lifecycle Management

Firewall & Security Skill :

o Security Policy Design & Optimization

o IPS, Antivirus & Application Control

o Web Filtering & DNS Filtering

o SSL Inspection & Decryption

o Threat Prevention & Security Hardening

o Security Zone Segmentation

o Rule Base Optimization & Cleanup

o Access Control & Governance

· SD-WAN Skills-

o Fortinet Secure SD-WAN

o SLA-Based Path Selection

o Overlay VPN Management

o WAN Optimization

o Link Health Monitoring

o SD-WAN Design & Troubleshooting