Senior Engineer - Site Reliability Engineering

LSEG (London Stock Exchange Group); Allen (TX); On-site; USD 140,000 - 190,000; Full time

Job summary

LSEG (London Stock Exchange Group) is seeking a Senior Site Reliability Engineer to drive reliability across new and existing platforms. You will work with Architecture, Engineering, Security, and Platform teams to embed reliability from day one.

This role emphasizes proactive ownership, leadership presence, and collaboration with global teams. No people-management or shift-based duties are required; you will respond to major incidents when needed.

Qualifications

• Senior SRE role shaping foundations of reliability across platforms.
• Not a people-management or shift-based role.
• Requires proactive ownership and leadership presence.

Responsibilities

• Lead the establishment of SRE foundations for new projects, building environments, monitoring, alerting, and ensuring operational readiness from day one.
• Define, implement, and champion observability standards, tooling, and guidelines across metrics, logs, traces, and SLIs/SLOs.
• Design and evolve monitoring and alerting solutions to improve visibility, reduce toil, and strengthen system health.
• Continuously drive reliability improvements through incident reduction and performance tuning.
• Partner with Security to ensure platforms meet compliance.

Skills

Reliability engineering

Observability

Incident management

Leadership

Cross-team collaboration

Tools

Monitoring systems

Observability tooling

Job description

Role Profile:

We are evolving our Site Reliability Engineering capabilities to strengthen reliability, observability, security, and operational excellence across our Markets and Risk Intelligence division.

As a Senior SRE, you will be a senior handson technical person help shape the foundations of reliability across both new and existing platforms. You will collaborate with Architecture, Engineering, Security, and Platform teams to ensure reliability is built into systems from day one.

While this is not a peoplemanagement or shiftbased role, you will work closely with global teams and may occasionally be called upon for major incidents or critical issues. This position requires a highly proactive, hard-working expert with strong leadership presence and ownership of platform reliability outcomes.

Key Responsibilities

We are looking for a person who is passionate about reliability engineering and who bring a continuous improvement approach to everything they do!

Lead the establishment of SRE foundations for new projects building environments, monitoring, alerting, and ensuring operational readiness from day one.

Define, implement, and champion observability standards, tooling, and guidelines across metrics, logs, traces, and SLIs/SLOs.

Design and evolve monitoring and alerting solutions that improve visibility, reduce toil, and strengthen system health.

Continuously drive reliability improvements across our environments through incident reduction, performance tuning, and building resilient patterns.

Partner with Security teams to ensure our platforms meet compliance