IP Core Network Engineer - Construction

Do you want to help deliver high-quality engineering and maintenance solutions that keep critical infrastructure operating safely and efficiently?

Join a well-established UK construction and engineering specialist with over two decades of experience providing design, installation, and maintenance services across transport, energy, commercial, and public sectors; known for delivering complex mechanical, electrical, fire safety, telecom, and security projects with exceptional quality and compliance, employing a highly trained workforce of engineers, and working collaboratively with strategic partners to drive value and peace of mind for clients. The company has a strong track record of completing challenging infrastructure assignments and maintaining long-term customer relationships with organisations on major rail projects, reflecting its commitment to engineering excellence and safety.

Apply now to be part of a team that builds reliable, innovative solutions and supports essential infrastructure across the UK!

Responsibilities:

• Design and deliver IP data network solutions supporting rail and transport operations.
• Produce High Level Designs and Low Level Designs for complex network migrations.
• Lead and support the migration from legacy SDH infrastructure into a modern MPLS core.
• Support the deployment of a dual-core architecture with full failover capability.
• Contribute to the integration of OTN and IP/MPLS technologies.
• Develop and execute detailed migration plans across approximately 50 operational sites.
• Secure the network in line with critical infrastructure and operational technology requirements.
• Work closely with stakeholders across engineering, operations, and delivery teams.
• Provide hands-on technical input during implementation and cutover phases.

Skills / Must have:

• Strong IP networking background with experience in large-scale data networks.
• Proven experience producing HLD and LLD documentation.
• Experience with MPLS core networks (Nokia experience highly desirable).
• Understanding of OTN and carrier-grade transport environments.
• Experience working in rail, transport, utilities, or other operational technology environments.
• Ability to work onsite full time in Woolwich.
• Strong troubleshooting, planning, and documentation skills.

Benefits:

• Long-term, stable programme work on critical national infrastructure.
• Exposure to modern MPLS core technologies replacing legacy SDH systems.
• Opportunity to work on a multi-year transformation programme rather than short-term BAU.
• Clear ownership and influence over network design and migration strategy.

Salary:

• £55,000–£70,000 per annum (flexible within range depending on experience).