At a Glance
- Tasks: Lead and optimise large-scale carrier-grade networks while mentoring engineers.
- Company: Dynamic ISP with a focus on innovation and collaboration.
- Benefits: Competitive salary, hybrid work model, and professional development opportunities.
- Other info: Exciting career growth in a supportive and dynamic environment.
- Why this job: Join a successful team and make a real impact in network engineering.
- Qualifications: Proven expertise in network architecture and design, ideally with ISP experience.
The predicted salary is between 50000 - 60000 £ per year.
Principal Network Engineer - ISP
Permanent | £80,000pa - £90,000pa + Benefits | London HQ - Hybrid Role - 2 Days per Week at HQ
Location is London. Candidates located across the UK Midlands, London and South East UK will be considered, provided they can attend the London HQ two days per week.
The Opportunity
Surfing a wave of success in 2026, my client is offering an experienced Principal Network Engineer this exciting opportunity to lead the architecture, design, delivery and optimisation of large-scale carrier-grade networks.
You will act as the Senior Technical Authority across Network Infrastructure Projects, providing expert guidance, Technical Leadership, Network Architecture and Network Design as well as final-level / 4th level escalation support.
Applicants should have experience working for an ISP or closely with Internet Service Providers / PON's within a carrier-grade environment.
CCIE and/or CCIP Certifications are highly advantageous, but not essential if you have proven experience i. e. gained battle scars in the Networking and ISP arena.
Key Requirements
- Proven expertise in Network Architecture and Network Design (essential).
- Experience working for an ISP or within an ISP/carrier-grade network environment (essential).
- Advanced Cisco networking experience across enterprise and service provider technologies.
- CCIE (Service Provider or Enterprise ) highly desirable; candidates able to demonstrate CCIE-level capability will also be considered.
- Strong knowledge of BGP, OSPF, IS-IS, MPLS, MPLS VPNs, IPv6, Multicast and Firewalls.
- Experience producing HLDs, LLDs, migration plans and technical documentation.
- Strong project delivery, technical leadership and stakeholder management skills.
Responsibilities
- Lead network projects from scope and design through implementation
- Optimisation and operational handover
- Provide senior escalation support; drive network performance, resilience and security improvements
- Mentor engineers; support maintenance and migration activities
- Participate in an on-call escalation rota; and collaborate with technical.
- Support operational and leadership stakeholders to deliver business-critical network initiatives.
- #J-18808-Ljbffr
Principal Network Engineer - Cisco - ISP - South or Mids UK in London employer: Energy Jobline CVL
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