Find a job 
Featured Companies 
Featured Universities 
For Companies At a Glance
- Tasks: Design and support enterprise firewall solutions with Fortinet and Juniper technologies.
- Company: Join a leading tech firm focused on network security in South Yorkshire.
- Benefits: Competitive pay, flexible working hours, and opportunities for professional growth.
- Other info: Dynamic team environment with potential for contract extension.
- Why this job: Make a real impact by securing networks and solving complex security challenges.
- Qualifications: 5+ years in firewall engineering and strong troubleshooting skills required.
The predicted salary is between 50000 - 60000 £ per year.
Whitehall Resources are currently looking for a Firewall Engineer based in South Yorkshire for an initial 6-month contract.
We are seeking an experienced Firewall Engineer to join the Firewall Engineering team, responsible for designing, implementing, and supporting enterprise network security solutions. The role requires strong hands-on expertise with Fortinet and Juniper firewalls and the ability to operate at Level 3 (L3) support within a complex enterprise environment.
Main responsibilities:- Design, implement, and support Fortinet and Juniper firewall platforms.
- Provide L3 support for firewall-related incidents, problems, and complex service requests.
- Troubleshoot advanced network and security issues across enterprise environments.
- Manage firewall rulebases, NAT policies, security zones, and objects in line with security standards.
- Support firewall changes, upgrades, patching, and migrations.
- Perform root-cause analysis and drive permanent fixes for recurring issues.
- Collaborate with network, security, and infrastructure teams to ensure secure connectivity.
- Ensure compliance with internal security policies and regulatory requirements.
- Maintain accurate documentation, configurations, and operational procedures.
- Participate in on-call rotas and provide out-of-hours and weekend support when required to support business-critical services and incident resolution.
- Minimum 5 years of hands-on experience in firewall engineering or network security roles.
- Strong expertise in Fortinet (FortiGate) and Juniper (SRX) technologies.
- Solid understanding of L3/L4 networking concepts, routing, and traffic flow.
- Proven experience providing L3 operational support in production environments.
- Strong troubleshooting and analytical skills.
- Ability to work effectively under pressure, including during major incidents.
- Experience working in regulated or enterprise environments (e.g. banking or financial services).
- Exposure to high-availability designs, VPN technologies, and security best practices.
- Relevant vendor certifications (e.g. Fortinet NSE, Juniper JNCIA/JNCIS).
Firewall Engineer employer: Whitehall Resources
Contact Detail:
Whitehall Resources Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Firewall Engineer
✨Network Like a Pro
Get out there and connect with people in the industry! Attend networking events, join online forums, or even hit up LinkedIn. The more folks you know, the better your chances of landing that Firewall Engineer gig.
✨Show Off Your Skills
When you get the chance to chat with potential employers, don’t hold back! Share your hands-on experience with Fortinet and Juniper firewalls. Talk about specific projects you've worked on and how you tackled complex issues. Let them see your expertise in action!
✨Ace the Interview
Prepare for those tricky interview questions by brushing up on L3 support scenarios and troubleshooting techniques. Think of examples from your past work where you solved tough problems. Confidence is key, so practice makes perfect!
✨Apply Through Us!
Don’t forget to check out our website for the latest Firewall Engineer roles. Applying through us not only gives you access to exclusive opportunities but also helps us match you with the right job based on your skills and experience!
We think you need these skills to ace Firewall Engineer
Some tips for your application 🫡
Tailor Your CV: Make sure your CV highlights your experience with Fortinet and Juniper firewalls. We want to see how your skills match the job description, so don’t be shy about showcasing your hands-on expertise!
Craft a Compelling Cover Letter: Your cover letter is your chance to shine! Use it to explain why you’re the perfect fit for the Firewall Engineer role. Share specific examples of your past work that align with the responsibilities listed in the job spec.
Show Off Your Troubleshooting Skills: Since this role involves L3 support, make sure to mention any complex incidents you've resolved in the past. We love seeing how you tackle challenges, so give us the details on your problem-solving process!
Apply Through Our Website: Don’t forget to submit your application through our website! It’s the best way for us to receive your details and get the ball rolling on your application. We can’t wait to hear from you!
How to prepare for a job interview at Whitehall Resources
✨Know Your Firewalls Inside Out
Make sure you brush up on your knowledge of Fortinet and Juniper firewalls. Be ready to discuss specific features, configurations, and troubleshooting techniques you've used in past roles. This will show that you're not just familiar with the technology but can also apply it effectively.
✨Showcase Your L3 Support Experience
Prepare examples of how you've provided Level 3 support in previous positions. Think about complex incidents you've resolved and be ready to explain your thought process and the steps you took to troubleshoot and fix issues. This will demonstrate your hands-on expertise and problem-solving skills.
✨Understand the Bigger Picture
Familiarise yourself with enterprise network security as a whole. Be prepared to discuss how firewall management fits into broader security policies and compliance requirements. This shows that you understand the importance of your role within the team and the organisation.
✨Be Ready for Scenario-Based Questions
Expect to face scenario-based questions during the interview. Practice articulating how you would handle specific situations, such as a major incident or a firewall upgrade. This will help you demonstrate your analytical skills and ability to work under pressure, which are crucial for this role.