Find a job 
Featured Companies 
Featured Universities 
For Companies At a Glance
- Tasks: Lead the design and delivery of secure SD-WAN solutions for enterprise clients.
- Company: Join Telent, a forward-thinking tech company with a focus on innovation.
- Benefits: Enjoy 34 days holiday, a pension scheme, and discounts on shopping and dining.
- Other info: Inclusive culture that values diversity and offers excellent career growth opportunities.
- Why this job: Make a real impact in network security while working with cutting-edge technologies.
- Qualifications: Expertise in Fortinet SD-WAN and strong networking skills required.
The predicted salary is between 70000 - 90000 ÂŁ per year.
Reporting into the Head of Focal Engineering, the Fortinet Principal Engineer will be responsible for leading the design and delivery of secure, high-performance Fortinet SD‑WAN solutions for our enterprise and public sector customers. This is a hybrid role based in our Farnborough office with approximately 2 days per month onsite. Ad‑hoc travel may be required.
What you’ll do
- Lead the end‑to‑end design of secure SD‑WAN solutions using Fortinet Secure SD‑WAN
- Define scalable, resilient architectures tailored for enterprise and public sector clients
- Ensure alignment with customer requirements, SLAs, and regulatory standards
- Act as the subject matter expert (SME) for Fortinet SD‑WAN technologies
- Provide guidance and mentoring to engineers and architects across projects
- Drive best practices in network design, security integration, and automation
- Act as the last‑line technical lead to resolve technical problems (design or support)
- Assist in the build and design of proof‑of‑concept scenarios, type approval activities in the Telent labs, and support in the creation of test type documentation and test scenarios
Who you are
You are an experienced network and security professional with deep expertise in designing and delivering complex Fortinet SD‑WAN solutions. You have a strong background in enterprise networking and a proven track record of leading technical design from concept through to implementation.
Key requirements
- Expert knowledge of SD‑WAN technologies, particularly Fortinet Secure SD‑WAN (FortiGate, FortiManager, FortiAnalyzer)
- Fortinet Expert Certification (FCSS)
- Fortinet SD‑WAN design and delivery experience
- Deep understanding of network security principles (firewalls, VPNs, segmentation, zero‑trust concepts)
- Experience designing large‑scale, resilient, multi‑site network architectures
- Strong ability to produce HLDs, LLDs, and technical design documentation
- Excellent troubleshooting and performance optimisation skills
- Strong stakeholder management and communication skills (technical and non‑technical audiences)
What we offer
- 34 days holiday, including public holidays, with option to buy or sell days annually
- 26 days holiday, plus public holidays, with option to buy or sell days annually
- Company pension scheme
- Range of family‑friendly policies
- Occupational health support and wellbeing portal
- Discounts on cinema, restaurants, and shopping through Telent Reward scheme
Additional benefits: A career at Telent spans many sectors, roles, technologies and clients, offering opportunities to develop new skills and make an impact. We nurture talent in an inclusive culture that respects and values difference, celebrates diverse ideas, and allows everyone to be themselves and thrive at work.
Principal Engineer - Fortinet in Farnborough, Hampshire employer: Energy Jobline CVL
Contact Detail:
Energy Jobline CVL Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Principal Engineer - Fortinet in Farnborough, Hampshire
✨Network Like a Pro
Get out there and connect with folks in the industry! Attend networking events, webinars, or even local meetups. The more people you know, the better your chances of landing that Principal Engineer role.
✨Show Off Your Skills
When you get the chance to chat with potential employers, don’t hold back! Share your experiences with Fortinet SD-WAN solutions and how you've tackled complex network designs. Let them see your expertise in action!
✨Prepare for Technical Interviews
Brush up on your technical knowledge and be ready to dive deep into SD-WAN technologies during interviews. Practice explaining your design processes and troubleshooting methods clearly, so you can impress the interviewers.
✨Apply Through Our Website
Don’t forget to apply directly through our website! It’s the best way to ensure your application gets seen by the right people. Plus, we love seeing candidates who are proactive about their job search.
We think you need these skills to ace Principal Engineer - Fortinet in Farnborough, Hampshire
Some tips for your application 🫡
Tailor Your CV: Make sure your CV is tailored to the Principal Engineer role. Highlight your experience with Fortinet SD-WAN solutions and any relevant certifications. We want to see how your skills align with what we're looking for!
Craft a Compelling Cover Letter: Your cover letter is your chance to shine! Use it to explain why you're passionate about this role and how your background makes you the perfect fit. Don’t forget to mention your experience in leading technical designs!
Showcase Your Technical Expertise: In your application, be sure to showcase your deep understanding of network security principles and your experience with SD-WAN technologies. We love seeing specific examples of your work that demonstrate your expertise!
Apply Through Our Website: We encourage you to apply through our website for the best chance of getting noticed. It’s super easy, and you’ll be able to keep track of your application status. We can’t wait to hear from you!
How to prepare for a job interview at Energy Jobline CVL
✨Know Your Fortinet Stuff
Make sure you brush up on your knowledge of Fortinet SD-WAN technologies. Be ready to discuss specific features of FortiGate, FortiManager, and FortiAnalyzer, as well as how they apply to real-world scenarios. This will show that you're not just familiar with the tech but can also lead discussions around it.
✨Showcase Your Design Skills
Prepare to talk about your experience in designing scalable and resilient network architectures. Bring examples of past projects where you’ve led the design from concept to implementation. Highlight any challenges you faced and how you overcame them, as this demonstrates your problem-solving abilities.
✨Communicate Like a Pro
Since you'll be dealing with both technical and non-technical stakeholders, practice explaining complex concepts in simple terms. Think of ways to convey your ideas clearly and effectively, as strong communication skills are key for this role.
✨Be Ready for Technical Challenges
Expect some technical questions or scenarios during the interview. Prepare to troubleshoot a hypothetical issue or discuss how you would approach a specific design challenge. This will help you showcase your expertise and thought process under pressure.