Permanent Role

Job Title

Layer 3 Network Engineer (Network Assurance Lead)

The Role
Provide hands-on technical ownership of complex subscriber broadband faults across access, provisioning and CPE layers within an ISP/Wholesale environment. This is a deeply operational, execution‑focused role requiring expert diagnosis of end‑to‑end FTTP issues, structured evidence gathering, and effective engagement with third‑party BNG and wholesale providers.
The role may occasionally require out‑of‑hours work and travel between office locations, primarily Stoke and Irlam.

Reporting to
Head of Networks

Ø Key Responsibilities

Ø Investigate complex FTTP subscriber faults end‑to‑end

Ø Analyse DHCP session establishment and lease failures

Ø Troubleshoot Radius authentication and attribute alignment

Ø Validate subscriber state using third‑party BNG session tools

Ø Investigate session drops, stale sessions, and re‑authentication behaviour

Ø Validate VLAN tagging and access alignment

Ø Diagnose IP addressing and allocation issues

Ø Investigate MTU and fragmentation‑related faults

Ø Perform WAN and LAN packet capture analysis

Ø Deep‑dive into CPE routing, NAT and firewall behaviour

Ø Investigate DNS resolution issues

Ø Identify firmware‑related behavioural faults

Ø Validate ACS / TR‑069 provisioning integrity

Ø Diagnose Wi‑Fi performance issues (RSSI, airtime utilisation, interference)

Ø Distinguish internal LAN issues from upstream network faults

Ø Maintain and update technical knowledge base

Ø Own and drive clear communication during major faults and escalations, providing structured updates to internal teams, suppliers, and stakeholders, ensuring transparency and alignment at all stages

Ø Proactively build, maintain, and improve the technical knowledge base, ensuring repeat issues, fixes, and best practices are well documented and easily accessible across teams

Ø Identify gaps in processes, tooling, and documentation, and work with internal teams and suppliers to implement improvements that reduce repeat faults and increase operational efficiency

Personal Attributes

Ø Strong communicator, able to present complex technical information clearly

Ø Collaborative team player with a positive approach to internal teams, suppliers and customers

Ø Methodical, analytical, and evidence‑driven problem solver

Ø Calm under pressure with strong operational focus

Key Skills and Experience

Essential

Ø Strong broadband fault diagnostic experience (FTTP preferred)

Ø Practical understanding of DHCP and Radius flows

Ø Solid IP networking fundamentals

Ø Experience working in an IPoE (DHCP‑based) broadband environment

Ø Strong Wi‑Fi troubleshooting knowledge

Ø Comfortable interpreting session data, logs, and diagnostic outputs

Ø Experience working with third‑party BNG or Retail ISP/Wholesale providers

Ø Ability to produce clear, structured technical escalations

Desirable

Ø CCNA‑level knowledge

Ø Experience diagnosing firmware‑related issues

Ø Experience with ACS / TR‑069 provisioning systems

Qualifications

Ø Relevant networking qualifications desirable (e.g., CCNA), but not mandatory

Freedom Fibre recognise the service provided by recruitment agencies and as such have a Preferred 2nd tier Supplier List, with whom terms of business have been agreed. Only suppliers who have signed up to these terms can place candidates with Freedom Fibre and will receive instruction directly from us to do so. Freedom Fibre is therefore unable to consider speculative CV's or proposals from any other third party and any speculative CV's or proposals being sent into the organisation will be treated as gifts.

As such, Freedom Fibre reserves the right to directly contact any candidates who have been speculatively submitted by a third party and shall therefore not be liable for any fees whatsoever should it choose to engage the candidate’s services. Furthermore, speculative submission of candidate CV's does not establish a right of representation should the same candidate’s details also be submitted by a Freedom Fibre Preferred 2nd tier Supplier or independently by the candidate themselves.

Submission of any unsolicited CV's and proposals to Freedom Fibre will be deemed evidence of full and unlimited acceptance of these terms and agreement that these terms are the totality of any commercial or contractual relationship whatsoever in respect of the candidate(s) whose unsolicited CV's were sent.