Platform Reliability Engineer

📍 Milton Keynes (Hybrid) 💰 Competitive salary plus excellent benefits At SIS, we're looking for a Platform Reliability Engineer to help ensure the reliability, performance and operational excellence of the platforms and applications that power our 24/7 products and services. This is an opportunity to work across cloud platforms, applications and engineering teams, supporting business-critical systems while driving automation, observability and continuous improvement. You'll play a key role in enhancing service reliability, reducing operational risk and helping shape the future of our technology operations capability. What you'll be doing - Supporting and maintaining highly available, business-critical applications and cloud platforms - Investigating and resolving incidents, ensuring rapid restoration of services and effective root-cause analysis - Improving platform reliability through automation, monitoring and continuous improvement initiatives - Enhancing observability through dashboards, logging, metrics, tracing and alerting - Supporting Azure-hosted services, Kubernetes environments and cloud-native technologies - Contributing to CI/CD pipelines, deployment processes and operational readiness activities - Driving improvements that reduce operational toil, increase resilience and improve service performance - Collaborating closely with Software Engineering, Platform Engineering, Infrastructure and Security teams to deliver reliable, scalable solutions What we're looking for You'll bring: - Experience in Site Reliability Engineering (SRE), platform support, cloud operations or a similar production engineering role - Strong knowledge of Microsoft Azure and cloud operational best practices - Experience supporting containerised workloads, ideally within Kubernetes and Azure Kubernetes Service (AKS) - Knowledge of monitoring and observability tools such as Grafana, Prometheus and Azure Monitor - Experience troubleshooting complex applications, cloud infrastructure and distributed systems - Familiarity with automation, scripting and CI/CD practices - Strong incident management, problem-solving and analytical skills - A proactive mindset and passion for improving reliability, resilience and operational efficiency Why join SIS? At SIS, you'll join a team that values: ✅ Better Together ✅ Focused Innovation ✅ Trusted Delivery ✅ Inspiring Enthusiasm You'll have the opportunity to work on modern cloud technologies, influence reliability engineering practices and contribute to the continuous improvement of platforms that support critical services across the business. Working alongside talented engineers in a collaborative environment, you'll help drive operational excellence while developing your technical expertise and career.