Network and Security Engineer
Network and Security Engineer

Network and Security Engineer

Full-Time 50000 - 65000 £ / year (est.) No home office possible
Cisco Systems Inc

At a Glance

  • Tasks: Configure and troubleshoot complex network and security systems in a dynamic environment.
  • Company: Join a leading tech firm focused on innovative network solutions.
  • Benefits: Enjoy a hybrid work model, competitive pay, and opportunities for professional growth.
  • Why this job: Make a real impact on network security while working with cutting-edge technologies.
  • Qualifications: CCNP certification and hands-on experience with Cisco technologies required.
  • Other info: Flexible shifts and excellent career advancement opportunities await you.

The predicted salary is between 50000 - 65000 £ per year.

We are looking for an experienced, fully hands-on Level 3 Network & Security Engineer to strengthen our infrastructure and network security operations. This senior technical delivery role requires expertise in configuring, troubleshooting, and resolving complex issues across Cisco security suite and networking appliances. The environment includes a multi-building campus network and enterprise security platforms, where you will work closely with IT Operations leaders. This is a 6-month contract position, located in Didcot, Oxfordshire, offering a hybrid work model of 3 days on-site and 2 days working from home.

Responsibilities

  • Configure, deploy, and troubleshoot campus and data-centre 100Gbps switching.
  • Execute network switch rollouts including hardware racking, cabling to standard, patch-panel termination, and fibre patching.
  • Perform structured cabinet clean-ups: re-patching copper and fibre runs, labelling, cable management, and documentation updates.
  • Support and maintain the eBGP routing fabric across multiple sites.
  • Configure and monitor QoS profiles for mixed multigigabit, 10G/100G, and uplink interfaces.
  • Fast-track implementation of a 5-node Cisco Identity Services Engine (ISE) build for 802.1X, RADIUS, MAB, and posture policy enforcement.
  • Manage Cisco Secure Email including message tracking, content filters, outbreak filters, DLP policies, and quarantine management.
  • Support enterprise firewall platforms including rule-set changes, tunnel maintenance, and policy audits.
  • Support and maintain Cisco SD-WAN (vManage/vSmart/vBond) fabric, including device onboarding, template management, and policy configuration.
  • Assist with Cloud OnRamp for Multicloud connectivity (AWS / Azure), including gateway controller health checks and tunnel monitoring.
  • Troubleshoot overlay/underlay issues, BFD sessions, OMP route propagation, and control-plane connectivity.
  • Perform scheduled server patching and updates across Windows Server environments.
  • Apply Linux server updates and patches where required (Ubuntu) – desirable but not essential.
  • Support virtualization platforms (Proxmox) for routine maintenance tasks during out-of-hours windows.
  • Maintain accurate network diagrams, IP address management records, and change-log documentation.
  • Follow and contribute to standard operating procedures, change-management processes, and post-implementation reviews.
  • Provide clear handover notes and shift reports for weekday engineering teams.

Technologies

  • AWS
  • Ansible
  • Azure Cloud
  • Cisco
  • Datadog
  • Fabric
  • Firewall
  • Hardware Support
  • Linux
  • Network
  • PowerShell
  • Security
  • Ubuntu
  • Windows

Qualifications

  • CCNP Routing & Switching / Enterprise (current or expired with demonstrable expert-level knowledge).
  • Strong hands-on experience with Cisco ISE deployment, policy configuration, and troubleshooting.
  • Proven experience administering Cisco Secure Email / IronPort (ESA/SMA).
  • Solid working knowledge of enterprise firewall management (Cisco ASA, Firepower/FTD, or comparable).
  • Experience with Cisco SD-WAN (Viptela) architecture, including vManage operations and C8000-series router onboarding.
  • ENSDWI trained or demonstrably operating at that level across SD-WAN, security, and wireless integration.
  • Comfortable with physical infrastructure work: racking, stacking, copper/fibre patching, and cabinet standards.
  • Windows Server patching and administration experience.
  • Methodical approach to change management and documentation.
  • Willing to work on-site at Milton Park on a weekend or flexible shift pattern as outlined above.
  • Linux server administration (Ubuntu) – patching, package management, systemd services (desirable).
  • Cisco CCIE written or lab (any track) – indicative of depth of knowledge (desirable).
  • Experience with hybrid-cloud gateway controllers and Cloud OnRamp (AWS, Azure) – desirable.
  • Virtualisation platform experience (Proxmox) – desirable.
  • Familiarity with network observability and monitoring tooling (e.g., Datadog) – desirable.
  • Scripting/automation skills (Ansible, PowerShell) for network or server tasks – desirable.

Network and Security Engineer employer: Cisco Systems Inc

Join a forward-thinking organisation in Didcot, Oxfordshire, where you will play a pivotal role as a Network and Security Engineer within a collaborative and innovative work culture. Enjoy the flexibility of a hybrid work model, competitive remuneration, and opportunities for professional development, all while contributing to cutting-edge network security operations in a dynamic multi-building campus environment.
Cisco Systems Inc

Contact Detail:

Cisco Systems Inc Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Network and Security Engineer

✨Tip Number 1

Network and Security Engineers, listen up! When you’re prepping for interviews, make sure to brush up on your hands-on skills. Get ready to talk about specific projects where you configured or troubleshot Cisco security appliances. We want to hear those success stories!

✨Tip Number 2

Don’t underestimate the power of networking! Reach out to your connections in the industry, especially those who work with Cisco technologies. They might have insider info on job openings or even refer you directly. Let’s leverage our network!

✨Tip Number 3

Prepare for technical assessments by practising common scenarios you might face in the role. Think about how you’d handle a multi-site eBGP routing issue or a firewall policy audit. We want you to shine in those practical tests!

✨Tip Number 4

Finally, don’t forget to apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, we love seeing familiar faces from our community. Let’s get you that job!

We think you need these skills to ace Network and Security Engineer

Cisco Security Suite
Network Configuration
Troubleshooting
eBGP Routing
QoS Configuration
Cisco Identity Services Engine (ISE)
Cisco Secure Email Administration
Enterprise Firewall Management
Cisco SD-WAN
Cloud OnRamp for Multicloud Connectivity
Windows Server Administration
Linux Server Administration (Ubuntu)
Virtualisation Platforms (Proxmox)
Documentation and Change Management
Scripting/Automation (Ansible, PowerShell)

Some tips for your application 🫡

Tailor Your CV: Make sure your CV is tailored to the Network and Security Engineer role. Highlight your hands-on experience with Cisco technologies and any relevant certifications like CCNP. We want to see how your skills match 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 network security and how your previous experiences have prepared you for this role. We love seeing genuine enthusiasm!

Showcase Your Technical Skills: In your application, don't forget to showcase your technical skills, especially around Cisco ISE, SD-WAN, and firewall management. We’re keen on seeing specific examples of how you've tackled complex issues in the past.

Apply Through Our Website: We encourage you to apply through our website for a smoother process. It helps us keep track of your application and ensures you don’t miss out on any important updates from us!

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 Cisco security suites and networking appliances. Be ready to discuss specific configurations, troubleshooting methods, and any hands-on experience you've had with 100Gbps switching or Cisco ISE deployment.

✨Showcase Your Problem-Solving Skills

Prepare to share examples of complex issues you've resolved in previous roles. Think about times when you had to troubleshoot network problems or implement security measures, and be ready to explain your thought process and the outcomes.

✨Familiarise Yourself with the Environment

Since this role involves a multi-building campus network, it’s a good idea to understand how such environments operate. Research common challenges and solutions in campus networking and be prepared to discuss how you would approach them.

✨Ask Insightful Questions

Interviews are a two-way street! Prepare thoughtful questions about the company's network infrastructure, their current challenges, or the team dynamics. This shows your genuine interest and helps you assess if the role is the right fit for you.

Network and Security Engineer
Cisco Systems Inc

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