Senior Network Engineer

Senior Network Engineer

Full-Time 54000 - 84000 £ / year (est.) No home office possible
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At a Glance

  • Tasks: Design and maintain secure network infrastructures in a high-security environment.
  • Company: Leading tech firm focused on national-level systems and security.
  • Benefits: Competitive salary, DV clearance support, and opportunities for professional growth.
  • Why this job: Join a team of experts and make a real impact on critical networking services.
  • Qualifications: Expertise in Juniper, Cisco ISE, and F5 technologies required.
  • Other info: Dynamic role with significant responsibility and career advancement potential.

The predicted salary is between 54000 - 84000 £ per year.

We are seeking highly skilled DV-cleared Senior Network Engineers with deep expertise in Juniper networking, Cisco Identity Services Engine (ISE), and F5 load balancing and security technologies. The successful candidate will be responsible for architecting, securing, and maintaining complex network infrastructures within a high-security environment. This individual will be a key technical authority, ensuring the resilience, security, and performance of critical networking services supporting national-level systems.

Responsibilities

  • Network Architecture & Engineering
    • Design, implement, and maintain Juniper network infrastructure, including routing, switching, firewalling, and security platforms.
    • Develop high- and low-level designs for secure network solutions.
    • Optimise network topologies for performance, resilience, and scalability in mission-critical environments.
  • Cisco ISE Administration
    • Lead the deployment, configuration, and management of Cisco Identity Services Engine.
    • Implement and maintain authentication, authorisation, and accounting (AAA) policies.
    • Develop NAC policies, including profiling, posture checks, and certificate-based access.
    • Troubleshoot ISE policy sets, device onboarding, and endpoint classification.
  • F5 Load Balancing & Security
    • Configure, optimise, and support F5 BIG-IP LTM/ASM/APM modules.
    • Manage SSL offloading, WAF policies, secure application delivery, and traffic steering.
    • Develop iRules and automation scripts where required to optimise traffic flows and enhance security.

Cross-cutting requirements

  • Active Developed Vetting (DV) clearance - required for immediate engagement.

Qualifications

  • Expert-level experience with Juniper routers, switches, SRX firewalls, and JunOS.
  • Hands-on expertise with Cisco ISE, including NAC policy design and implementation.
  • Deep knowledge of F5 BIG-IP, including LTM, ASM, APM, WAF, SSL, and traffic management.
  • Ability to design secure network architectures in highly classified environments.
  • Strong understanding of network protocols (BGP, OSPF, MPLS, VXLAN, STP, TACACS+/RADIUS).
  • Demonstrable experience troubleshooting complex, large-scale networks in high-availability environments.

Senior Network Engineer employer: Cisco Systems, Inc.

As a leading employer in the high-security networking sector, we offer Senior Network Engineers the opportunity to work on cutting-edge technologies within a dynamic and supportive environment. Our commitment to employee growth is reflected in our continuous training programmes and career advancement opportunities, while our collaborative work culture fosters innovation and teamwork. Located in a strategic area, we provide a unique chance to contribute to national-level systems, ensuring that your work has a meaningful impact.
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Contact Detail:

Cisco Systems, Inc. Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Senior Network Engineer

✨Tip Number 1

Network with industry professionals! Attend meetups, webinars, or conferences related to networking and security. This is a great way to connect with potential employers and learn about job openings that might not be advertised.

✨Tip Number 2

Show off your skills! Create a portfolio showcasing your projects, especially those involving Juniper, Cisco ISE, and F5 technologies. Having tangible examples of your work can really impress hiring managers.

✨Tip Number 3

Prepare for technical interviews by brushing up on your knowledge of network protocols and troubleshooting techniques. Practice common interview questions and scenarios to demonstrate your expertise in high-security environments.

✨Tip Number 4

Don’t forget to apply through our website! We often have exclusive listings and it’s the best way to ensure your application gets seen by the right people. Plus, you’ll be part of a community that values your skills!

We think you need these skills to ace Senior Network Engineer

Juniper Networking
Cisco Identity Services Engine (ISE)
F5 Load Balancing
Network Architecture
Network Security
Routing and Switching
Firewall Configuration
Authentication, Authorisation, and Accounting (AAA)
Network Access Control (NAC)
Traffic Management
SSL Offloading
iRules Development
Network Protocols (BGP, OSPF, MPLS, VXLAN, STP, TACACS+/RADIUS)
Troubleshooting Complex Networks
High-Availability Environments

Some tips for your application 🫡

Tailor Your CV: Make sure your CV highlights your experience with Juniper networking, Cisco ISE, and F5 technologies. We want to see how your skills match the job description, so don’t be shy about showcasing your relevant projects and achievements!

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 Senior Network Engineer role. We love seeing passion and enthusiasm, so let us know what excites you about working with us at StudySmarter.

Showcase Your Problem-Solving Skills: In your application, highlight specific examples where you've tackled complex network issues or optimised performance in high-security environments. We’re looking for candidates who can think on their feet and come up with innovative solutions!

Apply Through Our Website: We encourage you to apply directly through our website for a smoother process. It’s the best way for us to receive your application and ensures you don’t miss out on any important updates from our team!

How to prepare for a job interview at Cisco Systems, Inc.

✨Know Your Tech Inside Out

Make sure you brush up on your knowledge of Juniper networking, Cisco ISE, and F5 technologies. Be ready to discuss specific projects where you've implemented these systems, as well as any challenges you faced and how you overcame them.

✨Showcase Your Problem-Solving Skills

Prepare to share examples of how you've troubleshot complex network issues in high-availability environments. Use the STAR method (Situation, Task, Action, Result) to structure your answers and highlight your analytical thinking.

✨Understand Security Protocols

Since this role involves working in a high-security environment, be prepared to discuss your experience with security protocols like TACACS+/RADIUS and your approach to designing secure network architectures. This will show that you take security seriously.

✨Ask Insightful Questions

At the end of the interview, don’t forget to ask questions that demonstrate your interest in the role and the company. Inquire about their current network challenges or future projects involving Juniper or F5 technologies. This shows you're not just interested in the job, but also in contributing to their success.

Senior Network Engineer
Cisco Systems, Inc.
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