Senior Site Reliability Engineer – AWS, EKS

This is a fully remote position, open to applicants in United Kingdom.

📋 Description

• Take charge of the reliability, availability, and operational integrity of production services hosted on AWS and Amazon EKS.

• Manage and troubleshoot Kubernetes clusters in a production setting, encompassing cluster lifecycle, upgrades, node management, networking, scaling, capacity, and workload reliability.

• Engage actively in on-call and pager rotations, accepting responsibility for production incidents.

• Lead or assume a significant technical role during P1/P2 and Sev1/Sev2 incidents, including diagnosis, mitigation, recovery, and communication.

• Facilitate technical incident bridges and communicate directly with customers during production escalations as necessary.

• Conduct root cause analysis and lead blameless postmortems, ensuring that incidents lead to tangible engineering enhancements.

• Define, monitor, and enhance SLIs, SLOs, and error budgets for production services.

• Create and maintain actionable alerts, operational runbooks, and automated remediation processes.

• Develop and enhance infrastructure using Terraform/Terragrunt and Infrastructure as Code methodologies.

• Manage GitOps-based delivery environments utilizing tools like Argo CD or FluxCD.

• Optimize Kubernetes scaling and efficiency through technologies such as Karpenter, KEDA, and native Kubernetes autoscaling features.

• Enhance observability using tools such as Prometheus, Grafana, OpenTelemetry, Datadog, and/or ELK.

• Support highly available distributed and event-driven systems, including environments utilizing technologies like Kafka/MSK.

• Design, implement, and validate disaster recovery and business continuity strategies against measurable RTO and RPO goals.

• Identify recurring operational issues and eliminate manual work through automation and engineering solutions.

• Enhance AWS performance, scalability, security, and cost efficiency across production environments.

• Collaborate closely with software, platform, and engineering teams to integrate reliability into systems throughout the development lifecycle.

• Contribute to the ongoing improvement of incident management, operational readiness, and SRE engineering practices.

⛳️ Requirements

• Extensive professional experience as a hands-on Site Reliability Engineer, Production Engineer, or senior Platform Engineer with direct production oversight.

• Several years of recent, hands-on experience managing production environments on AWS.

• Strong, demonstrable expertise in operating Amazon EKS in a production context.

• In-depth Kubernetes operational knowledge extending beyond application deployment, including cluster administration, upgrades, nodes, autoscaling, networking, troubleshooting, and handling production failures.

• Proven experience participating in a production on-call/pager rotation.

• Demonstrable ownership of significant production incidents, including troubleshooting, mitigation, recovery, root cause analysis, and post-incident enhancements.

• Practical experience with SLIs, SLOs, error budgets, alerting, and runbooks.

• Strong Infrastructure as Code experience with Terraform and/or Terragrunt.

• Production experience with Kubernetes delivery and GitOps methodologies; experience with Argo CD or FluxCD is highly preferred.

• Solid production observability experience with tools such as Prometheus, Grafana, OpenTelemetry, Datadog, or ELK.

• Experience managing highly available, distributed production systems.

• Strong understanding of AWS networking, IAM, security, availability, and resilience.

• Experience in implementing and testing disaster recovery strategies with measurable RTO/RPO objectives.

• Proven external customer-facing technical experience, including technical discussions, production escalations, architecture/reliability conversations, or incident communication.

• Ability to articulate complex technical issues clearly and make sound decisions during high-pressure production incidents.

• Strong troubleshooting mindset with the capability to work independently during complex production failures.

• Strong professional English communication skills (minimum C1) for regular client interactions.

• A consistent track record demonstrating sustained hands-on production engineering ownership.

🏝️ Benefits

• Full-time permanent B2B cooperation.

• Fully remote working environment.

• Senior hands-on engineering position with significant ownership of mission-critical production systems.

• Opportunity to work on complex AWS, Kubernetes, and distributed-system environments at scale.

• Direct influence over reliability engineering, operational practices, and platform enhancements.

• Modern engineering environment with a strong focus on automation, observability, and continuous improvement.

• Collaboration with experienced engineering, platform, and product teams.

• Opportunity to introduce and utilize modern approaches, including AI-assisted engineering and operational automation.

• Long-term opportunities for engineers who wish to remain deeply technical and close to production.

• An inclusive and respectful workplace that values diversity regardless of gender, ethnicity, or background.