Network Security Support Engineer

Kerv; Greater London; On-site; GBP 52,000 - 78,000; Full time

Job summary

Kerv Connect Cloud is seeking a Network & Security Support Engineer to join the Network Support Team. This night-shift role focuses on delivering out-of-hours planned work and handling P1/P2 incidents for customer environments across the UK.

You will work with SD-WAN, firewalls, routing, and ISP management, providing advanced incident support, change implementation, and thorough documentation while collaborating with providers and internal teams.

Qualifications

• 4–5 years of network and security support experience.
• Familiarity with ITIL Service Principles.
• SD-WAN deployment and troubleshooting.
• Experience with firewall policies, IPS/IDS, web filtering.
• Advanced routing (OSPF, BGP, MPLS) and switching (L2/L3).
• ISP circuit management and DNS/DHCP/IPAM basics.
• Proactive documentation and knowledge sharing.

Responsibilities

• Provide advanced network and security incident support and service requests.
• Lead change requests and project tasks.
• Perform maintenance, software upgrades, and hardware replacements.
• Resolve P1/P2 incidents and coordinate with providers.
• Troubleshoot complex networking/security issues across customer environments.
• Maintain high-quality documentation and share knowledge within the team.

Skills

Networking troubleshooting

Security troubleshooting

Documentation

Communication skills

Time management

Tools

VeloCloud

SilverPeak

Fortinet

Zscaler

Infoblox

Cisco

Juniper

Palo Alto

F5

Job description

Please note: This is a night shift, remote working role (must be UK Based).

About Kerv Connect Cloud

You’ll be part of the Network Support & Engineering team in Kerv Connected Cloud. The Connected Cloud team brings together deep expertise in cloud, networking and managed services to help organisations modernise and run their infrastructure with confidence. From data centres to branch networks and cloud platforms, we design secure, automated environments that are built to scale. It’s all about creating resilient foundations that keep businesses connected, supported and ready for what’s next.

All About You

We’re looking for an experienced Network & Security Support Engineer to join our Network Support Team. This role requires at least 4–5 years’ experience supporting complex customer environments with technologies such as SD-WAN, Firewalls, Routing (OSPF/BGP), and ISP management.

You’ll be working nights to facilitate the delivery of out of hours planned work and to cover P1 and P2 incidents that occur.

Your part to play

• Provide advanced support for network and security incidents & service requests
• Lead implementation of change requests and project tasks
• The role will include maintenance, software upgrades, hardware replacements. It will also involve resolving emergency P1/P2 incidents that may occur
• Troubleshoot complex networking/security issues across customer environments
• Manage ISP circuits and liaise with providers as needed
• Maintain high-quality documentation and ensure knowledge sharing within the team

Required Expertise

• 4–5 years’ experience in a network & security support role
• ITIL Service Principles
• SD-WAN deployment & troubleshooting
• Security technologies (firewall policies, IPS/IDS, web filtering, secure web gateways)
• Advanced routing (OSPF, BGP, MPLS)
• Switching (Layer 2/3)
• ISP circuit management
• DDI (DNS/DHCP/IPAM)
• Monitoring tools (SNMP, API-based platforms)
• ITSM platforms - ServiceNow
• Technical Skills: VeloCloud, SilverPeak, Fortinet, Zscaler, Infoblox, Cisco, Juniper, Palo Alto, F5 (training will be provide for gaps in knowledge)

What You Bring

• Strong technical problem-solving and troubleshooting skills
• Ability to create and maintain high-quality documentation
• Excellent communication and customer service skills
• Time management and task prioritisation in fast-paced environments
• Professional, proactive, and collaborative approach
• The ability to work alone delivering technical support with little supervision

You will live the Kerv values…

• Think Customer First
• Team is everything
• Spread good vibes
• Build future
• Do the right thing

At Kerv, we’re building something special and we’re building it to last. We want everybody to feel valued, included and love working together. With an uncompromising pursuit of amazing employee experience, we always strive to do the right thing. We believe and will relentlessly promote and support the power of diversity, equality and belonging, through collaboration and creating exceptional solutions together.