Network Engineer

JR United Kingdom; Cardiff; On-site; GBP 45,000 - 65,000; Full time

Job summary

A leading transport and rail infrastructure company is seeking a skilled Network Engineer with Nokia IP/MPLS expertise to support a multi-year digital transformation initiative. This role involves leading the design and implementation of next-gen IP/MPLS networks, ensuring critical connectivity across the rail network in a dynamic operational environment.

Benefits

Secure 3-year project

Exposure to cutting-edge tech

Strong pipeline of future work

Qualifications

• Experience with Nokia IP/MPLS platforms (preferably 7750 Service Routers).
• Strong knowledge of network protocols (OSPF, BGP, MPLS).
• Hands-on skills in configuration and deployment.

Responsibilities

• Lead the design and configuration of a Nokia 7750 MPLS core network.
• Replace legacy SDH infrastructure with high-performance IP-based systems.
• Ensure uptime and redundancy for safety-critical systems.

Skills

Nokia IP/MPLS

Network protocols

Configuration

Deployment

Troubleshooting

Job description

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A leading transport and rail infrastructure company is seeking a skilled Network Engineer with Nokia IP/MPLS expertise to play a key role in a multi-year digital transformation initiative.

This is a high-impact project replacing legacy SDH infrastructure with a modern Nokia 7750 MPLS Core, underpinning critical connectivity across the rail network.

The Opportunity

• Join a long-term (3-year) infrastructure rollout program within one of the UK’s most complex operational environments
• Deliver next-gen IP/MPLS networks for mission-critical transport infrastructure
• Take ownership of design, implementation, and configuration of Nokia-based solutions
• Collaborate with project and field teams to ensure seamless transition from legacy systems

What You'll Do

• Lead the design and configuration of a Nokia 7750 MPLS core network
• Replace legacy SDH infrastructure with high-performance IP-based systems
• Liaise closely with operations and delivery teams to ensure reliable, real-time connectivity
• Carry out hands-on configuration, documentation, testing, and deployment
• Travel to East London sites to support implementation and troubleshooting
• Ensure uptime and redundancy for key systems operating in a safety-critical environment

Key Skills Required

• Proven experience with Nokia IP/MPLS platforms (especially 7750 Service Routers)
• Strong understanding of network protocols (OSPF, BGP, MPLS, QoS, etc.)
• Previous experience replacing SDH/legacy telecoms infrastructure is highly beneficial
• Hands-on capability for configuration, deployment, and troubleshooting
• Experience working in transport, rail, or similarly regulated environments is a plus
• UK driving license preferred due to travel between sites

Why Apply?

• 3-year secure project with a strong pipeline of future work
• Join a highly experienced, specialist engineering team
• Work on a legacy-modernization program with real public impact
• Exposure to complex networking environments and cutting-edge tech
• Work in one of the UK’s most critical infrastructure sectors