• Sr . Tier 3 NOC…

    Comcast (Plano, TX)
    …and their applications and routing + Solid knowledge of Layer 2 and Layer 3 internetworking technologies + 5 to 8 years' experience with protocols + **Extensive ... Firewall experience with firewalls such as (Fortinet 60F/80F, Cisco ASA, Juniper SRX, Checkpoint NG etc.)** + Extensive experience with Cisco switches and routers + Certifications such as ( **Fortinet Professional - required** , Fortinet Expert - preferred,… more
    Comcast (10/04/25)
    - Related Jobs

  • Sr IT Systems Engineer - Pub SEC

    Lumen (San Antonio, TX)
    …network management (NM) activities and serve as the first level of escalation to Tier I NOC personnel on network issues. + Troubleshoot, identify, and resolve ... committed to teamwork, trust and transparency. People power progress. We're looking for top- tier talent and offer the flexibility you need to thrive and deliver… more
    Lumen (09/26/25)
    - Related Jobs