Senior Site Reliability Engineer

Responsibilities

• Lead the design of scalable, fault-tolerant and self-healing systems in a multi-region AWS environment.
• Define and track Service Level Objectives (SLOs) and Service Level Indicators (SLIs) to drive architectural decisions and error budget policies.
• Conduct blameless post-incident reviews to uncover systemic root causes and implement long-term preventive measures.
• Identify patterns of manual work and lead the development of internal tools/automation to permanently eliminate them.
• Develop and maintain automated runbooks and playbooks for common operational tasks and complex incident response.
• Shift from simple monitoring to deep observability, ensuring high cardinality data leads to proactive actionable insights.
• Proactively identify and mitigate operational risks through chaos engineering and architecture reviews.
• Work with software engineers to design systems for reliability, scalability, and maintainability from the early stages of the SDLC.
• Continuously evaluate and optimize system performance, capacity, and cost efficiency.
• Refine the on-call experience to reduce alert fatigue, improve MTTR, and ensure sustainable rotation health.

Must-haves

• Bachelor’s degree in Computer Engineering or a similar discipline.
• 5+ years of experience as a Site Reliability Engineer or in a similar role.
• 3+ years of experience with AWS services including strong knowledge of container orchestration.
• 2+ years of Kubernetes experience.
• Deep understanding of observability principles and tools such as: Prometheus, Datadog, OpenTelemetry and similar.
• Experience with leading incident management and complex postmortem analysis.
• Experience and interest in managing infrastructure as code (Terraform).
• Experience with chaos engineering and other techniques for testing system resilience.
• Experience with CI/CD tools such as GitHub Actions for automated delivery.
• Proficiency in at least one programming language (Python, Go, Java, etc.) for building automation and internal tooling.
• Event-driven architecture experience (SNS, SQS etc).
• Ability to work independently and collaboratively in a fast-paced environment.
• Team player and open to new ideas.
• Good communication skills and fluency in English.

Good to have

• Prior experience with Scrum and other agile methods.
• Certification in relevant areas such as AWS Certified DevOps Engineer, Certified Kubernetes Administrator (CKA), or similar.
• Prior experience with Telco Core Networks (e.g., 5G/LTE Packet Core, IMS, Signaling) and low-latency networking.
• Experience with AI-driven SRE tools for anomaly detection and improvements.
• Contributions to open-source SRE projects or communities.
• Prior work experience in telecommunications.
• Deep understanding of eSIM and GSMA related technologies and services.