Senior SRE Engineer: Reliability & Observability Leader

LSEG (London Stock Exchange Group); Allen (TX); On-site; USD 140,000 - 200,000; Full time

Job summary

London Stock Exchange Group (LSEG) is evolving its Site Reliability Engineering capabilities to strengthen reliability, observability, security, and operational excellence across Markets and Risk Intelligence.

As a Senior SRE, you will be a hands‑on expert, shaping reliability across platforms and collaborating with Architecture, Engineering, Security, and Platform teams to embed reliability from day one.

Qualifications

• 5+ years hands‑on experience in SRE, Platform Engineering, Infrastructure, or related roles.
• Strong experience with Azure, AKS, Azure Container Apps, VNet, Entra ID and Azure managed services.
• Hands‑on experience with Kubernetes and containerized platforms.
• Proven experience designing and operating observability platforms with monitoring, logging, and alerting.
• Hands‑on experience with Datadog for metrics, logs, APM, and alerting.
• Strong understanding of SRE principles, including SLOs, error budgets, incident management, and reliability engineering.
• Understanding of cloud security principles and collaboration with security teams.
• Experience with cloud cost optimization strategies and tooling.

Responsibilities

• Lead the establishment of SRE foundations for new projects with environments, monitoring, alerting, and readiness from day one.
• Define, implement, and champion observability standards, tooling, and guidelines across metrics, logs, traces, and SLOs/SLIs.
• Design and evolve monitoring and alerting solutions to improve visibility and reduce toil.
• Drive reliability improvements through incident reduction, performance tuning, and resilient patterns.
• Partner with Security teams to ensure platforms meet security and risk-management expectations.
• Lead seamless handovers from project delivery into BAU SRE operations with documentation and readiness.
• Be a technical leader and mentor, supporting engineers and shaping engineering standards.

Skills

SRE principles

Observability

Incident management

Cloud platforms

Education

Bachelor's Degree in Computer Science or related field

Tools

Kubernetes

Datadog

Terraform

Azure

AWS

Job description

London Stock Exchange Group (LSEG) is evolving its Site Reliability Engineering capabilities to strengthen reliability, observability, security, and operational excellence across Markets and Risk Intelligence.

As a Senior SRE, you will be a hands‑on expert, shaping reliability across platforms and collaborating with Architecture, Engineering, Security, and Platform teams to embed reliability from day one.