What are the responsibilities and job description for the Network Reliability Engineer L3/L4 position at TECEZE?
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