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Mosaic451, LLC Senior Firewall Engineer in Phoenix, Arizona

Senior Firewall Engineer

Mosaic451 is seeking a Network/Firewall Engineer with experience managing, securing and working in mission-critical heterogeneous network environments. The individual must have hands-on experience configuring routers, switches, and firewalls from Cisco and Juniper, and should have experience working with other vendors ? specifically Palo Alto.

The individual must have experience working with customers to provide solutions to their network problems. The engineer should be experienced in the migration of Firewalls in an enterprise environment.

This is a remote position.


  • Supports and plans network communications systems for Mosaic451 customers.

  • Provides specifications and detailed schematics for network architecture, specifically firewall migration.

  • Provides specific detailed information for hardware and software selection, implementation techniques and tools for the most efficient solution to meet business needs, including present and future capacity requirements.

  • Conducts testing of network design prior to implementation and migration.

  • Maintains technical expertise in areas of network interconnection and interfacing, such as routers, multiplexers, firewalls, hubs, bridges, gateways, etc.

  • Evaluates and reports on new communications technologies to enhance capabilities of the network.

  • Works with configuration management to ensure compliance with architecture

  • Strong problem-solving skills

Minimum Requirements:

  • Individual must have 5-8 years of experience with managing and securing Palo Alto/Juniper/Cisco equipment, including firewalls, switches, routers, and management appliances.

  • Excellent written and oral communication skills

  • Strong analytical skills and demonstrated ability to ?think outside-the-box.?

Education and Certification Requirements:

  • Bachelor?s Degree in Computer Science or related field (preferred but not required)

  • Palo Alto Network Certifications highly desirable: PCNSA, PCNSE, etc.

  • CCNA preferred but not required