Senior Site Reliability Engineer

About the role

As a Senior Site Reliability Engineer you will ensure the reliability, scalability and performance of critical platforms that power mission‑critical applications. You will lead complex reliability initiatives, drive automation to reduce operational toil, and work closely with engineering teams to design resilient, observable systems.

Key responsibilities

• Creates monitoring queries and establishes service‑level baselines.
• Supports senior engineers during incidents and contributes to post‑mortems and root‑cause analyses.
• Participates in disaster‑recovery tests and validates availability, reliability and recoverability.
• Implements automation and executes code in production environments.
• Designs and documents infrastructure topology, deployment workflows and platform health reports.
• Develops advanced automation scripts for incident response, failovers and rollbacks.
• Builds templated observability dashboards and configures SLOs and error budgets.
• Guides cross‑functional teams in migrating applications to standard platforms and adopting new platform features.

Required skills

• Advanced Terraform expertise (modules, state management, drift detection, remote state).
• Extensive AWS operations across ECS, Fargate, RDS, ALB, VPC, IAM, Route53, Lambda, DynamoDB, SQS, Secrets Manager, KMS and CloudWatch.
• GitHub Actions CI/CD pipeline creation and troubleshooting.
• Containerisation with Docker, ECR and ECS task definitions, health checks and autoscaling.
• Strong Linux administration, Bash and Python scripting for AWS CLI automation.
• Incident response, observability techniques and root‑cause analysis.
• Experience deploying and operating AI services and APIs in production.

What we offer

• Flexible working hours and hybrid/on‑site options.
• Comprehensive pension plan, generous vacation and sabbatical eligibility.
• Well‑being initiatives, parental leave, study assistance and employee discounts.