Mid Level SRE: Cloud Reliability & Automation

Claranet limited; Lisboa; On-site; EUR 60,000 - 90,000; Full time

Job summary

Claranet limited in Lisbon seeks a Site Reliability Engineer (Middle) to drive reliability across services and enable product velocity through stability. You will design SLOs, architect observability, and lead disaster recovery planning on GCP and Azure.

Strong Kubernetes expertise and IaC with Terraform or Pulumi are required, along with incident leadership, self-healing automation, and mentoring of junior SREs.

Qualifications

• Hands-on experience operating production workloads on GCP and Azure.
• Advanced Kubernetes operations across multi-cluster environments.
• Strong knowledge of distributed systems reliability and failover.
• Experience with SLO-based monitoring and alerting.
• Infrastructure as Code with Terraform or Pulumi.
• Load testing with k6 or JMeter; chaos engineering experience.
• Secure operations including cert management and secrets rotation.
• Cloud architecture knowledge for multi-region DR and HA.
• Incident command and crisis management skills.

Responsibilities

• Design and document organisation-wide SLO frameworks and error budget policies;
• Architect observability for metrics, logs, traces and alerting, including SLO-based alerting and anomaly detection;
• Drive reliability engineering practices, including chaos engineering and load testing;
• Plan disaster recovery and deliver at least two DR plans with tested procedures;
• Contribute to infrastructure capacity planning and cost optimisation;
• Deliver complex automation projects and reliability workflows, including self-healing systems;
• Lead or support incident response as an escalation point for complex incidents; conduct reproducible investigations using evidence across services;
• Integrate diagnostic and AI-assisted tools into repeatable investigation and preventive reliability workflows, validating their outputs and measuring their effectiveness;
• Participate in architecture reviews with a reliability focus;
• Mentor Junior SREs in incident response, automation and responsible use of diagnostic tools;
• Prepare quarterly reliability reviews for leadership.

Skills

GCP

Azure

Kubernetes

Observability

Security operations

Terraform

Pulumi

JMeter

k6

Tools

Terraform

Pulumi

JMeter

k6

Job description

Claranet limited in Lisbon seeks a Site Reliability Engineer (Middle) to drive reliability across services and enable product velocity through stability. You will design SLOs, architect observability, and lead disaster recovery planning on GCP and Azure.

Strong Kubernetes expertise and IaC with Terraform or Pulumi are required, along with incident leadership, self-healing automation, and mentoring of junior SREs.