Senior Network Engineer - Telecommunications

Hamilton Barnes Associates Limited; Greater London; On-site; GBP 60,000 - 80,000; Full time

Job summary

A leading network services provider is seeking a Senior Network Engineer to design, implement, and optimise enterprise network architectures. The role focuses on advanced troubleshooting, network automation, and operational efficiency across critical systems. Candidates should possess strong knowledge of routing and switching, hands-on experience with Nokia equipment, and familiarity with Fortinet SD-WAN solutions. Competitive salary of up to £80,000 per annum is offered.

Benefits

Private health insurance

Death in service cover

Company pension contributions

Generous annual leave

Qualifications

• Strong knowledge of routing, switching, and MPLS (Juniper core preferred).
• Solid experience with OSPF and ISP-level networking.
• Background at a Tier 1 ISP or comparable network service provider.

Responsibilities

• Act as Tier 3/4 support for major incidents and complex faults.
• Provide advanced troubleshooting and resolution for routing, switching, and MPLS networks.
• Lead high-impact issues while contributing to future-proofing initiatives.

Skills

Routing knowledge

Switching knowledge

MPLS (Juniper core preferred)

Experience with OSPF

Senior-level escalation handling

Nokia equipment experience

Fortinet SD-WAN familiarity

Ciena solutions familiarity

Job description

Ready to take the lead in managing complex network infrastructures?

Join a network services and infrastructure specialist recognised for delivering high-performance connectivity, security, and managed network operations. With a focus on reliability, technical excellence, and innovation, the organisation continues to support enterprises with end-to-end network solutions across diverse environments.

The team is hiring a Senior Network Engineer to design, implement, and optimise enterprise network architectures. The role will focus on advanced troubleshooting, network automation, and ensuring scalability, security, and operational efficiency across critical systems.

Lead the networks that keep businesses connected. Apply now!

Overview

Responsibilities:

Responsibilities

• Tier 3/4 escalation point, working on high-impact issues while also contributing to future-proofing initiatives.
• Provide advanced troubleshooting and resolution for routing, switching, and MPLS networks.
• Configure, optimise, and maintain Juniper-based core systems.
• Act as Tier 3/4 support for major incidents and complex faults.
• Contribute to configuration and design projects alongside operational work.
• Gain exposure to Fortinet SD-WAN, Ciena, and Nokia kit as part of network operations.
• Support ongoing service improvements and technical excellence.

Skills / Must have

• Strong knowledge of routing, switching, and MPLS (Juniper core preferred).
• Solid experience with OSPF and ISP-level networking.
• Track record of handling senior-level escalations and troubleshooting complex networks.
• Hands-on experience with Nokia equipment.
• Familiarity with Fortinet SD-WAN and/or Ciena solutions.
• Background at a Tier 1 ISP or comparable network service provider.

Benefits

• Private health insurance.
• Death in service cover.
• Company pension contributions.
• Generous annual leave.

Salary

• Up to £80,000 per annum (depending on experience).

Location / Work Setup

Offices in Oswestry, Warrington, or London. Ideally, candidates should be based within 50 miles of one of these sites. Standard working hours are 9am–5pm.