
Network Firewall Engineer
Iselin, NJJobSeen 1 day agoSeen in employer's feed 1 day ago
See where you stand before you apply. No sign-up to start.
You apply on the posting's application page, with no Olive account needed.
Watch jobs like this. New roles like this one near Iselin, NJ, by email.
Don't just apply. Show up ready.
Olive works from this exact posting.
At a glance
Olive focuses on jobs in the United States, including remote roles you can work from there.
Job overview
The client is seeking a Senior Network Security Engineer to design, implement, secure, and support critical network infrastructure, with a focus on firewall engineering and enterprise networking. The engineer will serve as a subject matter expert for next-generation firewall technologies and work with security, infrastructure, and application teams to deliver secure, reliable services.
Skills & qualifications
Skills
Qualifications
Benefits
Full job description
Description
Senior Network Security Engineer (Firewall)
About the Opportunity
Our client, a large enterprise organization with a complex and highly available technology environment, is seeking a Senior Network Security Engineer with deep expertise in firewall engineering and enterprise networking. This individual will be responsible for designing, implementing, securing, and supporting critical network infrastructure while serving as a subject matter expert for next-generation firewall technologies.
Key Responsibilities
-
Design, implement, and maintain enterprise network security solutions with a focus on Palo Alto Networks and Fortinet firewalls.
-
Develop and manage firewall policies, security rules, NAT configurations, VPNs, and access controls.
-
Analyze firewall logs, network traffic, and security events to identify risks and troubleshoot connectivity issues.
-
Lead firewall upgrades, migrations, and lifecycle management initiatives.
-
Provide advanced troubleshooting for network and security issues involving routing, switching, wireless, VPN, and WAN/LAN environments.
-
Support enterprise network infrastructure including routers, switches, wireless systems, and security platforms.
-
Partner with security, infrastructure, and application teams to deliver secure and reliable services.
-
Participate in incident response efforts, root cause analysis, and remediation activities.
-
Maintain technical documentation, standards, and operational procedures.
Requirements
Required Qualifications
-
Bachelor's degree in Information Technology, Computer Science, or equivalent combination of education and experience.
-
10+ years of enterprise networking experience.
-
Strong hands-on experience with Palo Alto Networks and Fortinet firewall administration and engineering.
-
Expertise in firewall policy management, NAT, VPNs, traffic analysis, and network security best practices.
-
Advanced knowledge of TCP/IP, routing, switching, wireless networking, and WAN/LAN technologies.
-
Experience troubleshooting complex network and security environments.
-
Familiarity with optical networking technologies such as DWDM and ROADM is highly desirable.
-
Strong communication, problem-solving, and project coordination skills.
Preferred Certifications
-
CCNP or CCIE
-
Palo Alto Networks security certifications
Technology Doesn't Change the World, People Do.®
Robert Half is the world’s first and largest specialized talent solutions firm that connects highly qualified job seekers to opportunities at great companies. We offer contract, temporary and permanent placement solutions for finance and accounting, technology, marketing and creative, legal, and administrative and customer support roles.
Robert Half works to put you in the best position to succeed. We provide access to top jobs, competitive compensation and benefits, and free online training. Stay on top of every opportunity - whenever you choose - even on the go. Download the Robert Half app (https://www.roberthalf.com/us/en/mobile-app) and get 1-tap apply, notifications of AI-matched jobs, and much more.
All applicants applying for U.S. job openings must be legally authorized to work in the United States. Benefits are available to contract/temporary professionals, including medical, vision, dental, and life and disability insurance. Hired contract/temporary professionals are also eligible to enroll in our company 401(k) plan. Visit roberthalf.gobenefits.net for more information.
© 2025 Robert Half. An Equal Opportunity Employer. M/F/Disability/Veterans. By clicking “Apply Now,” you’re agreeing to Robert Half’s Terms of Use (https://www.roberthalf.com/us/en/terms) and Privacy Notice (https://www.roberthalf.com/us/en/privacy) .
How this job compares
Set against the 444 open Network Security Engineer jobs on Olive Jobs, counted November 14, 2026.
- Pay
- This postingNot listed
- US median$126–180K/yr375 salary ranges
- Openings
- Olive Jobs lists 17 open Network Security Engineer jobs in New Jersey and 444 across the US. 4% of them nationwide are listed as remote or flexible.
- Hiring the most across the US
- Ford Motor Company53 open
- Noblis52 open
- Cognizant51 open
- Experience
- This posting asks for at least 10 years of experience; Network Security Engineer postings that state a minimum ask for 7 years at the median (421 postings).
- Education
- 86 of the 444 open Network Security Engineer jobs (19%) ask for a bachelor's degree or higher.
Counted across the open, public US postings on Olive Jobs on November 14, 2026. Figures based on too few postings are left out.
Prepare for this role
You've read the whole posting — now see how you match it.




