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Networking Specialist

Ncounter
Ec2N1Ap, EC2N 1AP, United Kingdom
Last week
£180,000 – £200,000 pa

Salary

£180,000 – £200,000 pa

Job Type
Permanent
Work Location
Hybrid
Seniority
Senior
Education
Degree
Posted
25 May 2026 (Last week)
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Networking Specialist

Location: London (Hybrid Working Available)

Industry: Global Financial Services / Institutional Asset Management

Ncounter is supporting a global financial services organisation as they hire a senior Networking Specialist into a business-critical infrastructure role based in London, with hybrid working in place. This team underpins highly available, low-latency platforms that operate across international markets and demand exceptional network performance and stability.

The role centres on the design, delivery, and optimisation of complex enterprise networks spanning data centres, campus environments, and cloud platforms. You will be trusted as a senior technical authority, taking ownership of routing architecture, contributing to strategic decisions, and ensuring the network can support real-time, high-throughput workloads.

Key Responsibilities:

• Design and operate resilient network architectures across LAN, WAN, data centre, and cloud environments

• Own and optimise routing and traffic flows using BGP and OSPF in large-scale enterprise networks

• Design, support, and troubleshoot multicast architectures for real-time data distribution

• Translate technical and business requirements into robust, well-documented network designs

• Lead network change and delivery initiatives alongside internal engineering teams and vendors

• Act as a senior escalation point for complex network incidents and performance issues

• Continuously improve network resilience, throughput, and operational efficiency

What We’re Looking For:

You will be an experienced network engineer who has worked in demanding, high-availability environments where routing stability and performance are critical. Strong practical experience with BGP, OSPF, and multicast networking is essential, alongside confidence working with modern data centre technologies.

Nice to Haves:

• Experience with automation using Python, Ansible, or similar tools

• Exposure to observability and monitoring platforms

• Understanding of network security and secure routing design

• Hands-on experience with Arista and or Cisco in production environments

• Industry certifications such as CCNP or CCIE

This is an opportunity to join an organisation where network engineering directly supports mission-critical systems. If you are motivated by technical ownership, complex routing challenges, and long-term impact, we would welcome a confidential conversation.

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