Network Security Support Engineer

Posted 18 Days Ago
Be an Early Applicant
London, Greater London, England, GBR
In-Office
Senior level
Artificial Intelligence • Cloud • Information Technology • Consulting
The Role
Provide advanced triage, incident response, and change implementation for complex customer network and security environments. Troubleshoot SD-WAN, routing (OSPF/BGP/MPLS), firewalls, IPS/IDS, switching, DDI and ISP circuits. Act as escalation for junior engineers, maintain documentation, liaise with providers, participate in on-call rota, and lead implementation of change requests and project tasks.
Summary Generated by Built In

Please note: This is a hybrid working role which will require to attend an office based in Central London twice a week. 

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 part of a high-performing team, providing advanced triage, incident response, and change implementation, while acting as an escalation point for junior engineers.

Your part to play

●      Provide advanced support for network and security incidents & service requests

●      Lead implementation of change requests and project tasks

●      Act as an escalation point for Level-1/2 engineers, providing guidance and mentorship

●      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

●      Participate in the out-of-hours on-call rota and flexible shift coverage

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 (Autotask, ServiceNow)

●      Technical Skills: VeloCloud, SilverPeak, Fortinet, Zscaler, Infoblox (training provided for gaps)

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

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.

Skills Required

  • 4-5 years' experience in a network & security support role
  • ITIL Service Principles
  • SD-WAN deployment and troubleshooting
  • Firewall policies, IPS/IDS, web filtering, secure web gateways
  • Advanced routing (OSPF, BGP, MPLS)
  • Switching (Layer 2/3)
  • ISP circuit management and liaison with providers
  • DDI (DNS, DHCP, IPAM)
  • Monitoring tools (SNMP, API-based platforms)
  • Experience with ITSM platforms (Autotask, ServiceNow)
  • Vendor-specific technologies: VeloCloud, SilverPeak, Fortinet, Zscaler, Infoblox (training provided for gaps)
  • Participate in out-of-hours on-call rota and flexible shift coverage
  • Strong technical problem-solving and troubleshooting skills
  • Excellent communication and customer service skills
  • Time management and task prioritisation in fast-paced environments
Am I A Good Fit?
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The Company
782 Employees
Year Founded: 2020

What We Do

Kerv is a purpose-driven technology consultancy that harnesses the power of technology for good. They specialize in secure digital transformation, providing expertise across cloud, AI, data, security, and customer experience (CX) to help organizations modernize and achieve measurable outcomes. As a certified B Corp, Kerv focuses on delivering high-impact business solutions across diverse sectors, including the public sector and financial services.

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