Network Security Engineer Job at Granite Telecommunications, Quincy, MA

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  • Granite Telecommunications
  • Quincy, MA

Job Description

Duties And Responsibilities

  • Support the Network and Security Manager and network engineering team with the design, maintenance, and day-to-day operation of our enterprise network across on-prem, branch, and hybrid environments.
  • Troubleshoot and resolve network tickets, including LAN/WAN issues, firewall- related problems, and connectivity incidents.
  • Perform routine break/fix work, firmware updates, and hardware/software upgrades for firewalls, switches, and other network appliances.
  • Implement firewall policy changes and assist with ongoing firewall rule maintenance and cleanup.
  • Install and configure network devices (routers, switches, firewalls) under guidance from senior engineers.
  • Maintain accurate network topology diagrams for headquarters, branches, and WAN infrastructure.
  • Participate in a weekly on-call rotation with the network team.
  • Provide Tier 1 and Tier 2 support for network-related escalations.
  • Perform and verify backups of network device configurations.
  • Handle additional network or security projects as assigned.

What We Are Looking For

  • 1+ years of hands-on experience in a corporate/enterprise network environment or strong academic background with meaningful internship experience.
  • Solid understanding of networking fundamentals such as TCP/IP, VLANs, routing, and switching.
  • Familiarity with routing protocols (OSPF, BGP, EIGRP).
  • Exposure to enterprise networking hardware (Fortinet, Cisco, Juniper Mist, or similar).
  • Ability to analyze and troubleshoot network connectivity issues efficiently.
  • Strong communication skills and a willingness to learn from senior engineers.
  • Ability to work on-site five (5) days per week (primary work is hands-on with physical infrastructure).

Great- To- Haves

  • Certifications like CCNA (or in progress), CompTIA Network+, Fortinet NSE, or similar.
  • Exposure to cloud networking concepts—especially GCP or AWS (e.g., VPCs, routing, firewalls, hybrid connectivity).
  • Familiarity with virtualization and software-defined networking (Google Cloud networking, VMware NSX).
  • Basic scripting skills (Python, PowerShell) for automation or configuration tasks.

Job Tags

Internship,

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