Celestica · 8 hours ago
Senior Firewall Engineer
Richardson, TX, US
Full-time
Onsite
Senior Level
7+ years expCelestica is a global leader in design and manufacturing solutions, and they are seeking a Senior Firewall Engineer to join their Security Architecture team. This role involves managing the global firewall infrastructure, handling complex rule migrations, troubleshooting VPN issues, and ensuring security through patch management and configuration auditing.
ElectronicsManufacturingProduct DesignSupply Chain Management
No H1B
U.S. Citizen Only
Responsibilities
Lead the installation and configuration of physical and virtual firewalls (NGFW) in data centers and cloud VPCs
Process high-complexity firewall change requests, ensuring that all changes are documented and follow the change management process
Manage and troubleshoot Site-to-Site (IPsec) and Client-to-Site (GlobalProtect/AnyConnect) VPN tunnels
Perform regular firmware upgrades, vulnerability patching, and hardware refreshes across the global estate
Use packet captures and flow analysis (Wireshark, tcpdump) to resolve connectivity issues that junior staff cannot solve
Develop scripts (Python/Ansible) to automate repetitive tasks like health checks or mass object creation
Act as a technical mentor for Junior/Mid-level SOC and Network Engineers
Qualification
Required
7+ years of dedicated experience in Network Security Engineering
Bachelor's degree in IT, Networking, or a related field (equivalent experience accepted)
Firewall Mastery, Advanced administration of Checkpoint Firewalls
Deep knowledge of TCP/IP, NAT/PAT, BGP, OSPF, and SSL/TLS Inspection
Expert at using Wireshark, Splunk, and firewall auditing tools like Tufin
Experience managing security groups and virtual appliances in AWS or Azure
Integrating firewalls with Active Directory, LDAP, and MFA (SAML/Okta)
Excellent written and verbal communication skills, interpersonal and collaborative skills, and the ability to communicate security and risk-related concepts to technical and nontechnical audiences
Strong presentation skills for communicating architectural designs to executive leadership
Organized and able to meet deadlines
Lead the installation and configuration of physical and virtual firewalls (NGFW) in data centers and cloud VPCs
Process high-complexity firewall change requests, ensuring that all changes are documented and follow the change management process
Manage and troubleshoot Site-to-Site (IPsec) and Client-to-Site (GlobalProtect/AnyConnect) VPN tunnels
Perform regular firmware upgrades, vulnerability patching, and hardware refreshes across the global estate
Use packet captures and flow analysis (Wireshark, tcpdump) to resolve connectivity issues that junior staff cannot solve
Develop scripts (Python/Ansible) to automate repetitive tasks like health checks or mass object creation
Act as a technical mentor for Junior/Mid-level SOC and Network Engineers
Preferred
Checkpoint: CCSE (highly preferred)
CompTIA Security+ or Cisco CCNP Security
Company
Celestica
Celestica is a manufacturing firm that provides design, hardware platform, and supply chain solutions to a multitude of industries.
10001+ employees
Funding
Current Stage
Public CompanyTotal Funding
$1.47B2024-06-20Post Ipo Debt· $657.67M
2023-06-05Post Ipo Secondary· $148.8M
2021-09-30Post Ipo Debt· $660.4M
Leadership Team
Robert Mionis
President and CEO
Recent News
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2025-12-12
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