About the role

  • Joining LSEG as a Lead Engineer to design and optimize enterprise-scale LAN and data centre connectivity. Focused on low latency solutions for global trading systems.

Responsibilities

  • Lead the design, optimisation, and evolution of LAN and data centre networking architectures, including switching, routing, traffic engineering, and segmentation.
  • Deliver low latency, deterministic connectivity solutions optimised for real time trading and market data workloads.
  • Develop and maintain network topologies, high availability designs, and reference architectures for use across LSEG environments.
  • Implement and validate LAN features such as EVPN/VXLAN fabrics, QoS, multicast, and performance tuned network services.
  • Serve as a LAN design specialist, guiding engineering teams and contributing to architectural forums, design reviews, and platform roadmap discussions.
  • Partner closely with infrastructure, application, and cloud engineering teams to define connectivity requirements and support workload onboarding.
  • Provide consultancy and technical direction to teams integrating their services into LAN or hybrid network environments.
  • Lead troubleshooting and root cause analysis activities across complex LAN, campus, and data centre connectivity environments.
  • Contribute to improvements in observability, monitoring, network telemetry, and performance diagnostics.
  • Evaluate emerging LAN technologies, vendors, and design innovations, presenting findings to senior engineering stakeholders.
  • Work effectively within an agile, iterative delivery model.
  • Balance multiple priorities across a dynamic, fast moving environment.
  • Champion high quality engineering standards and ensure designs support resilience, scalability, and security.

Requirements

  • Strong experience in LAN and data centre network design at enterprise scale.
  • Deep understanding of Layer 2/3 architectures, including STP variants, MLAG, VLANs, VXLAN/EVPN, BGP, OSPF, and ECMP.
  • Proven background in building low latency, high performance network environments (preferably financial services or similarly demanding workloads).
  • Strong knowledge of network segmentation, policy enforcement, redundancy design, and high availability strategies.
  • Solid understanding of Linux networking, packet flows, NIC capabilities, traffic shaping, and performance tuning.
  • Understanding of modern container technologies, particularly Kubernetes.
  • Awareness of container networking concepts (e.g., CNI plugins), and how workloads consume network resources in hybrid cloud or on-prem container environments.
  • Familiarity with Gitbased workflows, CI/CD principles, or automation tooling (Terraform, Ansible, scripting languages).
  • Strong communication skills with the ability to translate complex LAN design topics to technical and nontechnical stakeholders.
  • Excellent analytical and problem solving skills across layered network and infrastructure environments.
  • Comfortable working in a fastpaced environment with changing priorities.

Benefits

  • healthcare
  • retirement planning
  • paid volunteering days
  • wellbeing initiatives

Job title

Lead Engineer – Connectivity LAN

Job type

Experience level

Senior

Salary

Not specified

Degree requirement

Bachelor's Degree

Location requirements

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