3rd Line - Network Engineer

Senior Networking Engineer – Managed Services Operations Centre (MSOC)

Role Summary

We are looking for a proactive and experienced Senior Networking Engineer to join our Managed Services Operations Centre (MSOC). This is a senior technical role where you will provide expert-level support across customer environments, lead escalations, and contribute to the continuous improvement of our services.

You will act as a technical authority, supporting business-as-usual operations while mentoring junior engineers and ensuring high-quality service delivery. Alongside BAU responsibilities, you will play a key role in enhancing operational processes, improving customer systems, and driving service excellence.

This role also involves building strong customer relationships and collaborating with professional services and pre-sales teams to design and deliver effective infrastructure solutions.

Typical shifts: 08:00–16:30 | 09:00–17:30 | 10:00–18:30 , (Shift patterns may vary based on business needs)

Key Responsibilities

• Maintain high availability of customer networks through proactive monitoring, maintenance, and failover testing


• Act as the final point of technical escalation (Tier 3) within the MSOC


• Troubleshoot complex incidents, problems, and changes, keeping customers regularly updated


• Maintain accurate and detailed records in ITSM systems


• Participate in an on-call rota providing out-of-hours escalation support


• Engage with third-party vendors to log and manage support cases


• Identify and recommend service and operational improvements


• Collaborate with Team Leaders and Service Delivery Managers on continual improvement initiatives


• Ensure all work meets or exceeds agreed Service Level Agreements (SLAs)


• Deliver consistently high levels of customer service


• Mentor and support junior engineers within the team


• Perform regular housekeeping and system maintenance tasks


• Take ownership of personal and professional development
  

Additional Responsibilities

• Flexibility to work on customer sites when required


• Participate in 24/7 support during high-priority incidents


• Maintain professionalism, integrity, and strong working relationships


• Adapt quickly to changing priorities and business needs


• Undertake additional duties as requested by management

Knowledge & Skills

Essential

• Strong technical expertise in networking, including:
  
  
  
  • Juniper networking (LAN/Wireless) and Mist
  
  
  • Switching technologies (Aruba or Cisco)
  
  
  • Routing and wireless networking
  
  
  • Network Access Control (Cisco ISE / Aruba ClearPass)
  
  
  • Aruba Central and wireless solutions
  
  
  • VMware ESX hosting
  
  
  • DNS, DHCP, and Certificate Services
  
  
  • Firewall technologies (Fortinet, Cisco, Palo Alto, Check Point)
  
  
  • VLAN configuration and routing
  
  
  
  


• Experience using ITSM tools (e.g., ServiceNow)

Desirable

• Firewall and switch configuration experience


• Knowledge of Cyber Essentials, ISO 27001, or similar frameworks


• Experience with Infoblox DDI solutions


• Understanding of change control processes


• Confidence working in live customer environments


• Cisco CCNP (or equivalent)

Key Attributes

• Strong technical awareness and problem-solving ability


• Excellent communication and customer service skills


• Commercial awareness with strong attention to detail


• Ability to work independently and as part of a team


• Highly motivated, adaptable, and resilient under pressure


• Professional, approachable, and customer-focused


• Ability to prioritise and manage escalated incidents effectively


• Proactive approach to learning and mentoring others

Experience & Qualifications

Essential

• 3–5 years’ experience in a 3rd Line Infrastructure or similar role


• Experience within a Managed Services environment


• Proven ability to engage with senior stakeholders and customers

Desirable

• Experience managing Change, Problem, and Major Incidents


• ITIL v4 Foundation certification


• BPSS or SC Clearance