Senior Engineer, Site Reliability Engineering (Cloud Focus: AWS & Azure)

We are evolving our Reliability Engineering team to move beyond support and operations. As a Senior Engineer in Site Reliability, you will be part of a diverse and inclusive organization that has full ownership of the availability, performance, and scalability of one of the most critical shared services at LSEG.

Main Responsibilities

• Maintain Service Level Objectives (SLOs) for cloud-hosted systems, continuously measuring and improving availability, latency, and overall system health.
• Design and implement automation for AWS and Azure environments to scale systems sustainably, prevent service issues, and enable rapid recovery.
• Partner with development teams to improve reliability, observability, and release velocity using cloud-native tools and guidelines.
• Participate in on-call rotations, incident response, postmortems, and root cause analysis.
• Advocate for strong engineering practices for building, deploying, and running scalable, reliable services across AWS and Azure.
• Enable cloud migration by performing architectural reviews, operational readiness testing, and configuring observability dashboards (e.g., Datadog integrated with AWS CloudWatch and Azure Monitor).
• Drive continuous learning and development in multi-cloud technologies.

Minimum Qualifications

• Bachelor's degree or equivalent experience in Computer Science or related technical field.
• Proficiency in scripting languages (Shell, Python).
• Experience maintaining Infrastructure as Code (IaC) using Terraform (or AWS CloudFormation, Azure ARM templates).
• Hands-on experience with AWS services (EC2, S3, RDS, IAM, VPC, Lambda) and familiarity with Azure equivalents.
• Knowledge of Docker and Kubernetes (EKS or AKS preferred).
• Familiarity with observability tools like Datadog, AWS CloudWatch, or Azure Monitor.
• Implement and maintain CI/CD pipelines (AWS CodePipeline, Azure DevOps, or similar).
• Incident response and blameless postmortems.
• Proficient in Git workflows.

Preferred Qualifications

• 8–10 years of proven experience.
• Strong understanding of AWS Well-Architected Framework and Azure Architecture Center.
• Experience with cloud security guidelines (IAM, KMS, Secrets Manager).
• Familiarity with cloud-native databases (AWS RDS/DynamoDB, Azure SQL).
• Knowledge of DevOps concepts and modern cloud-native architectures.

Benefits

• LSEG offers a range of tailored benefits and support, including healthcare, retirement planning, paid volunteering days and wellbeing initiatives.