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Cisilion

Network Engineer

Leatherhead
Posted about 22 hours ago
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About the Role

We are looking for enthusiastic, experienced, and driven individuals who are looking to build or maintain a lasting career in Networking. Cisilion will be working with you to set clear goals and expectations with regards to soft and technical skills, training, and accreditations to take you through support roles and further within our Client Services department.

Key Responsibilities

  • Lead complex network troubleshooting and provide expert technical guidance for escalated incidents and problems across managed service client environments
  • Conduct root cause analysis for recurring incidents, proactively recommending improvements to enhance network reliability and performance
  • Collaborate with Observability engineering to identify trends in specific devices, stacks, and environments
  • Performing technical triage through to either resolution and/or vendor escalation across LAN and WAN technologies (SD-WAN) and Wireless Networks – Meraki, Fortinet, Cisco, Palo Alto
  • Serve as the primary technical escalation point for junior engineers and collaborate with cross-functional teams to resolve persistent or high-impact network issues
  • Working closely with 3rd parties/vendors to manage shared Incidents impacting Managed Services Clients, as well as handling RMAs and changes
  • Manage and oversee critical network changes, ensuring compliance with best practices and minimizing client disruption
  • Contribute to technical documentation, process improvement initiatives, and knowledge sharing within the team
  • Drive network automation opportunities to minimize manual triage
  • Document knowledge articles, network diagrams, and other technical artefacts when required

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I’m in my final year doing Economics and I don’t know whether to apply for grad schemes now or do a masters first. What do you think?

Honest answer — it depends on where you want to end up. A lot of top grad schemes (Big 4, civil service, banking) don’t need a masters. Let’s look at the ones you’d be competitive for now, and we can decide if a masters actually adds anything.

Also worth knowing: most autumn 2026 applications are open now. Timing matters more than you think.

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Graduate Consultant — 2026 Scheme

PwC·London, UK
£35,000/yr

Why you're a good match

Strong

Your economics background and your summer at a regional bank line up with what PwC looks for on the consulting scheme. Applications close in four weeks.

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Why you're a good match

You’ve got the grades and the economics background, and your bank internship is exactly the experience this scheme looks for. Apply soon — deadlines close within the month.

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Experience fit

Your summer at the bank plus your econometrics coursework map directly to the day-one responsibilities on this scheme — client modelling, market briefings, and deal support.

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Experience, Knowledge, Skills and Qualifications

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  • 3+ Years experience of working in a technical Network operational support environment at a 3rd line level ideally
  • Professional technical experience of managing and supporting Network and Wireless infrastructure across Cisco, Meraki, Fortinet, Palo Alto (Strata Cloud) and Azure Networks
  • Strong knowledge of network security concepts – Firewalls, VPN, NAC, IPS/IDS
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Skills

Network Troubleshooting
Root Cause Analysis
LAN
WAN
SD-WAN
Wireless Networks
Meraki
Fortinet
Cisco
Palo Alto
Network Security
Firewalls
VPN
NAC
IPS/IDS
Network Automation

Location

Leatherhead, England, United Kingdom

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