Network Security Engineer

Network Security Engineer

Full-Time 45000 - 45000 £ / year (est.) No home office possible
Sadler Recruitment Ltd

At a Glance

  • Tasks: Own and improve a complex multi-site network estate in a dynamic environment.
  • Company: Join a leading organisation in Wales focused on network transformation.
  • Benefits: Competitive salary, hands-on experience, and opportunities for professional growth.
  • Why this job: Make a real impact on network security and infrastructure in a collaborative team.
  • Qualifications: Experience in network engineering and strong skills in L2/L3 switching and routing.
  • Other info: Be part of a small team where your contributions are highly visible.

The predicted salary is between 45000 - 45000 £ per year.

The Network & Security Engineer will take full ownership of a complex, multi-site network estate operating in a highly visible, operational environment. The Network Security Engineer will become the technical lead for networking, responsible for the improvement and long-term stability of the network across two major operational sites. While you’ll own the network domain, you’ll have the backing of both internal colleagues and external specialists when designing and implementing improvements. The organisation is investing heavily in modernising its infrastructure, and you will play a central role in that journey. A key early project will be leading the replacement of the core network before end of support, assessing the current environment, identifying risks, and designing the next generation network architecture. You’ll work alongside an experienced Infrastructure Manager, a small internal IT team, external cyber security specialists and a SOC provider to bring the estate up to modern security and operational standards. The environment is collaborative rather than siloed.

Job Responsibilities

  • Take ownership of the full network estate across two operational sites
  • Assess existing core and edge switching infrastructure and identify improvement opportunities
  • Design and lead a core network refresh, including potential vendor changes
  • Implement robust VLAN design, segmentation, routing and network access controls
  • Strengthen network security through port security, segmentation and configuration hardening
  • Work closely with external cyber security specialists to implement CIS and security best practices
  • Support the implementation of controls aligned with Cyber Essentials Plus
  • Collaborate with an external SOC provider on monitoring and security improvements
  • Contribute to the wider IT team where needed within a small operational environment

Essential Experience

  • Proven experience as a Network Engineer or Senior Network Engineer
  • Strong hands-on expertise with L2/L3 switching and routing
  • Experience designing and supporting multi-site enterprise networks
  • Strong understanding of VLANs
  • Experience implementing network access controls, segmentation and port security
  • Involvement in a refresh, core upgrade or infrastructure transition
  • Comfortable working directly with switch configuration via CL

Nice to Have's

  • Experience with vendors such as Cisco, HPE, Juniper or Ruckus
  • Exposure to Cyber Essentials, CIS benchmarks or security frameworks
  • Experience working with SOC providers or vulnerability management processes
  • Industry certifications such as CCNA or CCNP
  • Experience within operational or regulated environments

Why Join

  • A rare opportunity to engineer networks within one of Wales' most recognisable and operationally critical environments
  • Genuine ownership of a network estate with your ownership
  • Opportunity to join a major network transformation programme
  • Broad exposure across networking, infrastructure and cyber security
  • Varied operational environment with real-world impact
  • A small technical team where your work will be highly visible

Please send your CV in today.

Network Security Engineer employer: Sadler Recruitment Ltd

Join a forward-thinking organisation in the Vale of Glamorgan, where you will have the unique opportunity to take ownership of a complex network estate and lead significant transformation projects. With a collaborative work culture and strong support from both internal teams and external specialists, you will be empowered to drive improvements and enhance security standards in a highly visible operational environment. The company is committed to employee growth, offering broad exposure across networking, infrastructure, and cyber security, making it an excellent employer for those seeking meaningful and rewarding careers.
Sadler Recruitment Ltd

Contact Detail:

Sadler Recruitment Ltd Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Network Security Engineer

✨Tip Number 1

Network with industry professionals! Attend local meetups or online forums related to network security. This way, we can get insights into the latest trends and maybe even find out about job openings before they’re advertised.

✨Tip Number 2

Show off your skills in practical ways! Consider setting up a home lab to demonstrate your expertise in L2/L3 switching and routing. We can share our projects on platforms like GitHub to catch the eye of potential employers.

✨Tip Number 3

Prepare for interviews by brushing up on common technical questions and scenarios. We should practice explaining our past experiences with network refreshes and security implementations clearly and confidently.

✨Tip Number 4

Don’t forget to apply through our website! It’s the best way to ensure your application gets noticed. Plus, we can tailor our applications to highlight how our skills align with the specific needs of the role.

We think you need these skills to ace Network Security Engineer

Network Design
L2/L3 Switching
Routing
VLAN Configuration
Network Access Controls
Segmentation
Port Security
Cyber Security Best Practices
CIS Benchmarks
Cyber Essentials Plus
Vendor Management (Cisco, HPE, Juniper, Ruckus)
Switch Configuration
Collaboration Skills
Problem-Solving Skills

Some tips for your application 🫡

Tailor Your CV: Make sure your CV reflects the skills and experiences that match the Network Security Engineer role. Highlight your hands-on expertise with L2/L3 switching and routing, as well as any experience with multi-site enterprise networks.

Showcase Your Projects: If you've led any network refreshes or core upgrades, be sure to include those in your application. We want to see how you've taken ownership of projects and contributed to improving network security and performance.

Highlight Collaboration Skills: Since this role involves working closely with internal teams and external specialists, mention any collaborative projects you've been part of. Show us how you can work effectively in a team environment to achieve common goals.

Apply Through Our Website: We encourage you to apply directly through our website for the best chance of getting noticed. Make sure to follow the application instructions carefully and submit all required documents.

How to prepare for a job interview at Sadler Recruitment Ltd

✨Know Your Network Basics

Make sure you brush up on your L2/L3 switching and routing knowledge. Be ready to discuss your hands-on experience with these technologies, as well as any specific projects you've led or contributed to. This will show that you’re not just familiar with the concepts but have practical expertise.

✨Showcase Your Problem-Solving Skills

Prepare to talk about how you've assessed existing network infrastructures in the past. Think of examples where you identified risks and implemented improvements. This is your chance to demonstrate your analytical skills and how you can contribute to the organisation's network refresh project.

✨Familiarise Yourself with Security Best Practices

Since the role involves strengthening network security, be prepared to discuss your understanding of port security, VLAN design, and segmentation. Mention any experience you have with Cyber Essentials or CIS benchmarks, as this will highlight your commitment to maintaining high security standards.

✨Emphasise Collaboration

This position requires working closely with both internal teams and external specialists. Share examples of how you've successfully collaborated in previous roles, especially in a multi-site environment. Highlighting your teamwork skills will show that you can thrive in their collaborative culture.

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