Senior Network Support Engineer

risual Limited; Derby; Hybrid; GBP 40,000 - 70,000; Full time

Job summary

Join a vibrant and innovative company as a 2nd Line Senior Network Support Engineer. This role places you at the heart of technical support, where you'll manage critical incidents and provide advanced troubleshooting for complex networking environments. Collaborate with a diverse team while acting as a trusted advisor to clients. With opportunities for professional growth and a commitment to employee well-being, this position offers a unique chance to make a significant impact in a supportive and evolving workplace. Embrace your passion for technology and take your career to new heights!

Benefits

Private Medical Insurance

Company Paid Health Cash Plan

Employee Assistance Program

25 Days Holidays Plus Birthday Off

Option to Purchase Additional Holiday

Company Pension Scheme

Life Assurance x 4

Discounted Gym Membership

Company Social Events

Never Ending Supply of Drinks and Snacks

Qualifications

• Strong hands-on experience with Cisco, Juniper, and Fortinet technologies.
• Deep knowledge of routing, switching, firewalls, and security protocols.

Responsibilities

• Act as a senior escalation point for 2nd line network incidents.
• Provide advanced troubleshooting for routers, switches, and firewalls.
• Guide and mentor 1st/2nd line engineers.

Skills

Cisco Networking

Juniper Networking

Fortinet Technologies

Routing Protocols (BGP, OSPF)

Firewall Management

Troubleshooting Skills

VPN Configuration

Network Security Protocols

Education

Relevant Networking Certifications (e.g., CCNP, JNCIS)

Tools

Ansible

Python

Job description

Become a change maker and join Node4.

Node4 have a committed, talented, and diverse workforce that is growing all the time, but as we expand through our own growth and acquisitions, we never lose sight of the most important part of our business - our people. We want you to grow, learn, and evolve alongside us.

So, whether you're just starting out in your career or looking to progress as an industry professional, Node4 has a place for you.

About the role

As a 2nd Line Senior Network Support Engineer, you’ll be at the forefront of our support function managing critical incidents, performing deep technical troubleshooting, and supporting strategic improvements in customer networks.

You will act as a trusted advisor to clients and internal stakeholders, while supporting complex networking environments across multi-vendor platforms including Cisco, Juniper, and Fortinet.

You'll also be part of a shared on-call rota, ensuring consistent support for high-priority issues outside of standard hours.

Key Responsibilities

• Act as a senior escalation point for 2nd line network incidents and service requests.
• Provide advanced troubleshooting for routers, switches, firewalls, and VPNs.
• Configure, maintain, and optimise hardware from Cisco, Juniper, and Fortinet.
• Lead or support the delivery of network upgrades, migrations, and integration projects.
• Guide and mentor 1st/2nd line engineers, sharing knowledge and promoting best practices.
• Support firewall rule management, network segmentation, and security policy enforcement.
• Participate in the on-call support rota (additional allowance provided).
• Maintain high-quality documentation and ensure effective incident/ticket management.

What will you bring?

• Strong hands-on experience with Cisco, Juniper, Fortinet, Meraki technologies.
• Deep knowledge of routing, switching, firewalls, and security protocols.
• Excellent troubleshooting skills and ability to work under pressure.
• Clear understanding of core protocols (BGP, OSPF, IPsec, NAT, VLANs, QoS).
• Comfortable acting as a technical escalation point.
• Previous experience working in an MSP, NOC, or similar service-driven environment.
• Willingness to participate in the on-call rota.

Desirable:

• Relevant certifications (e.g., CCNP, JNCIS, Fortinet NSE 4 or above).
• Experience with automation and scripting tools (e.g., Python, Ansible).
• Exposure to SD-WAN, cloud networking (Azure, AWS), or infrastructure-as-code.

What can we offer you?

• Hybrid Working
• Private Medical Insurance or Company Paid Health Cash Plan
• Employee Assistance Program
• 25 days holidays plus your birthday off
• Option to purchase additional holiday (up to 5 days)
• Company Pension Scheme
• Life Assurance x 4
• A diverse workforce
• Employee investment with Node4 training Academy
• Family savings and shopping discounts through the Node4 benefits portal.
• Discounted Gym Membership
• Modern facilities with open and welcoming breakout areas
• Company Social events
• Never ending supply of hot and cold drinks, biscuits, sweets, and fruit

Why join Node4?

Founded in 2004, Node4 has experienced exceptional growth and success over the years. From an office in Derby to locations nationwide. From three people to a workforce of over 1200. We believe that our people are the driving force behind our success. We are a vibrant, passionate, and diverse team committed to providing exceptional service as standard. We are proud of our employees and the environment that reflects our core business values of Passion, Innovation, and Trust.

Node4 is the place to be if you are passionate about technology and providing exceptional service while developing your career within a welcoming and evolving company.

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