Senior Site Reliability Engineer - OpenTelemetry

In this Senior SRE – Observability role you will help shape and scale a modern observability platform to improve monitoring, resilience, and incident response for critical trading systems. You’ll work within the Production Engineering – Observability team to define standards, implement OpenTelemetry and OpenSearch solutions, and deliver enterprise-grade insights. You’ll drive automation and best practices to reduce outages and increase operational efficiency, partnering with cross-functional teams to sustain long-term platform health. This role offers hands-on technical leadership in a high-stakes financial tech environment with a clear impact on uptime and reliability.

• ESPP
• life assurance and income protection
• critical illness cover
• private medical insurance and dental care
• Employee Assistance Program
• competitive pension plan

• Gather requirements and analyze existing monitoring and observability platforms
• Define observability standards, telemetry strategies, and alerting frameworks
• Implement OpenTelemetry-based instrumentation and OpenSearch solutions across applications and infrastructure
• Design dashboards, analytics and reporting to improve transparency and operational efficiency
• Develop automation tools and processes to enhance observability and reduce manual overhead
• Integrate observability frameworks with enterprise monitoring platforms such as Geneos
• Provide documentation and operational handover to ensure long-term sustainability
• Apply Site Reliability Engineering principles to drive stability, scalability and incident reduction

• Proven experience as Senior SRE or Observability Engineer implementing enterprise-scale observability solutions
• Strong expertise in OpenTelemetry including instrumentation and telemetry pipelines
• In-depth knowledge of OpenSearch for architecture, data indexing, optimisation and analytics
• Experience developing dashboards and alerts using Grafana
• Familiarity with enterprise monitoring tools such as Geneos and related observability technologies
• Practical understanding of Site Reliability Engineering practices and automation approaches
• Background in high-availability or mission-critical environments; financial services experience is highly desirable

• collaboration across cross-functional teams
• problem-solving under pressure
• strong communication and documentation
• OpenTelemetry instrumentation
• OpenSearch data indexing and analytics
• Grafana dashboards and alerts