Senior Site Reliability Engineer

Job description

About the Role We’re looking for a Senior Site Reliability Engineer to join our Infrastructure Squad - a lean & senior team where ownership is high and expectations are even higher. This is a deeply hands-on role at the core of a high-traffic system, where you’ll be directly responsible for maintaining reliability, performance, and stability in a fast-paced environment. You’ll be working on real-time production challenges, handling incidents, managing alerts, and being part of a critical on-call rotation. This role requires resilience, strong decision-making under pressure, and a proactive mindset to continuously improve systems operating at scale. If you thrive in high-load environments, enjoy solving complex production issues, and want to have a direct impact on systems used by millions - this is the place for you. Key Responsibilities - Own system reliability by actively monitoring platform health, managing alerts, and responding to incidents in real time - Participate in 24/7 on-call rotations, taking full ownership of production stability in a high-traffic (5–7k RPS) environment - Investigate incidents, perform root cause analysis, and implement long-term fixes to prevent recurrence - Build and continuously improve monitoring, alerting, and observability across the Kubernetes (EKS) ecosystem - Deploy, manage, and optimise infrastructure using Terraform, Helm, and GitOps tools (Flux/ArgoCD) - Drive automation and proactively improve system resilience, reducing manual intervention and recurring issues - Maintain and evolve CI/CD pipelines and infrastructure-as-code practices - Collaborate closely with engineering teams to support deployments and minimise user impact in a live environment - Introduce and integrate new tools and technologies to enhance scalability, reliability, and performance - Handle environment-specific requests and ensure smooth day-to-day platform operations under constant load Requirements - Strong hands-on experience with Kubernetes (deployment, scaling, troubleshooting) in high-load environments - Experience with GitOps tools such as FluxCD or ArgoCD - Proven experience in incident response, root cause analysis, and postmortems in production systems - Solid experience with AWS, Terraform, Docker, and CI/CD pipelines - Experience with monitoring and observability tools such as Datadog, Prometheus, Grafana, and logging stacks like ELK or CloudWatch - Strong understanding of networking concepts and protocols - Proficiency in at least one scripting language (e.g. Python, Go, Node.js) - Experience working with version control systems (Git) - Familiarity with incident management tools like PagerDuty, Opsgenie, or similar - Ability to operate effectively in a fast-paced, high-pressure environment with strong ownership and accountability - Proactive, resilient mindset with a focus on continuous improvement and system stability What We Offer - Competitive Salary - Quarterly Bonuses - Unlimited Paid Time Off - Unlimited Paid Sick Leave - Remote & Flexible Working - Private Medical Insurance - Financial Support for Life Events - Professional Development Budget - International Exposure - Regular Company Events *Benefits may vary depending on location and contractual agreement Recruitment Process 1. HR Interview (30-45 min) 2. Technical interview (90 min) 4. Final Interview with C-level (60 min) By submitting your application, you acknowledge that your personal data will be processed in accordance with our Privacy Policy https://playson.com/privacy.