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Open nowPosted 10 hours ago

Senior Juniper SRX Firewall Engineer

Symmetrio

Where
United States
Work mode
Remote
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Your applicationOpen nowSenior Juniper SRX Firewall EngineerSymmetrio · United States

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Share of postings closed within
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  3. 13.3%7 days
  4. 21.3%14 days
  5. 35.7%30 days
  6. 59.1%60 days
This job: posted 10 hours ago

The posting

Symmetrio is recruiting a Senior Firewall Engineer to join the network security team of one of our large government customers. The Senior Firewall Engineer will support a primarily Juniper SRX edge / core firewall infrastructure that supports mission critical applications and operations

This is a hands-on, day-to-day operations role. You will be the person who configures the rules, builds and fixes the VPNs, and tracks down the problem when something stops working. You will work closely with the our customer’s network engineers, security staff, and agency IT teams. You should be self-directed, comfortable owning issues from start to finish, and able to explain technical problems clearly to people outside networking.

This is a remote position. Candidates must be comfortable working EST hours. Competitive compensation, health benefits and 401k retirement plan.

This is a full-time, W2 consultant role with Symmetrio. No C2C or third-party candidates.

Responsibilities

  • Administer, configure, and maintain Juniper SRX firewalls, including edge and core devices, in a large multi-tenant enterprise environment.
  • Create, modify, and review firewall rules and security policies in response to agency and project requests.
  • Build, manage, and troubleshoot IPsec site-to-site and remote access VPNs (IKE/IKEv2).
  • Diagnose and resolve connectivity and traffic-flow issues using CLI tools, session and flow analysis, logs, and packet-level troubleshooting.
  • Perform planned changes, upgrades, and maintenance, with clear documentation and rollback plans.
  • Respond to escalated and critical incidents affecting network availability or security.
  • Work directly with agency IT teams and system owners to understand their requirements and implement secure, supportable rules.
  • Coordinate with network engineering and cybersecurity teams so policy, architecture, and incident response stay aligned.
  • Schedule changes around the operational needs of public safety and other critical services, and communicate impact to stakeholders in plain language.
  • Document configurations, standards, and procedures so knowledge is shared across the team.
  • Support Palo Alto firewalls as the City expands its use of that platform (training provided as needed).

Requirements

  • 5+ years of hands-on experience administering and troubleshooting Juniper SRX firewalls specifically (not only Juniper switches and routers) on Junos OS.
  • Strong CLI skills, including building policies, zones, NAT, and VPNs from the command line, not just from a GUI.
  • Proven IPsec/IKE/IKEv2 VPN troubleshooting experience.
  • Solid understanding of routing, switching, and enterprise network fundamentals.
  • Experience supporting large enterprise or multi-customer environments.
  • Ability to work independently, with strong written and verbal communication.
  • Willingness to complete a hands-on technical lab as part of the interview process.
  • Ability to pass a background check.

Preferred Qualifications

  • Experience with Palo Alto firewalls (customer is expanding its Palo Alto footprint).
  • Experience with Juniper Security Director, Junos Space, or other centralized management platforms.
  • Experience with high-end SRX platforms (such as the SRX4000/5000 series) in edge or data center deployments.
  • Experience in government, municipal, or public safety environments.
  • Juniper certifications (JNCIS-SEC, JNCIP-SEC, or higher)

Benefits

  • Health Care Plan (Medical, Dental & Vision)
  • Retirement Plan (401k)
  • Paid Time Off (Vacation, Sick & Public Holidays)
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