Site Reliability Engineer

What you’ll be doing - Work with a team of DevOps and DBA professionals - Improve existing infrastructure and processes across the countries we’re deployed in, as well as streamlining processes to deploy to new countries in the future - Continuously improve Kubernetes platform stability and efficiency, with a focus on optimising resource utilisation, reducing costs, and streamlining environment provisioning through GitOps-first practices - Monitor and maintain cloud infrastructure through autoscaling, alerting pipelines, and Grafana dashboards covering metrics, logs, traces, and real user monitoring (RUM) - Own weekday on-call operations, triaging and responding to production incidents, performing root cause analysis, and driving post-incident reviews - Design and manage alert pipelines to ensure actionable signal quality, with attention to preventing alert fatigue, waterfall alerting, and notification flooding - Define and maintain SLIs and SLOs for critical services, and use them to drive reliability improvements and on-call prioritisation - Take ownership and responsibility for our cloud operation activities - Liaise with external security agencies for annual audits as well as perform our own internal security sweeps - Aid in reconfiguring existing architecture to allow for rapid deployments to new countries - Mentoring less experienced team members What you’ll bring - 3+ years DevOps / SRE / platform engineering experience - Must be based in Europe - Experience independently leading the planning and deployment of a project - Experienced with cloud platforms, especially AWS, including solid knowledge of how to utilise cloud resources to fulfil the demand from other teams and production - Strong understanding of Kubernetes and container orchestration, with experience in EKS and GitOps tooling such as ArgoCD and Helm being highly valued - Experience with Infrastructure-as-Code, particularly Terraform - Proficiency in scripting and automation with Bash, Python, or Golang; experience with Rust is a plus - Hands-on experience with observability stacks covering metrics, logs, distributed traces, and profiling, for example Prometheus, Loki, Tempo, Pyroscope, and OpenTelemetry - Experience with real user monitoring (RUM), with familiarity in Grafana Faro or OpenTelemetry SDK instrumentation being a plus - Proven on-call and incident response experience, comfortable triaging production issues under pressure, leading post-mortems, and driving follow-up actions - Ability to design and maintain alert frameworks that minimise noise, prevent alert fatigue, and avoid waterfall alerting patterns - Experience defining SLIs and SLOs and using them to inform reliability work - Familiarity with service mesh concepts is a plus, as we are actively evaluating Cilium-based service mesh in non-production environments - Solid networking knowledge, especially the TCP / IP stack and HTTP protocol - Experience handling high HTTP request volumes and designing systems for high availability and high traffic environments - A strong understanding of cache, including CDN, HTTP cache, Redis / Memcached - Excellent troubleshooting skills, including Linux OS issue diagnosis and OS parameter optimisation, JVM optimisation would be highly advantageous Our stack - Languages: Java / Spring Boot, Node.js, Python, JavaScript - Database: Aurora MySQL & PostgreSQL, MongoDB, MySQL Community - Cache: ElastiCache, Redis, Valkey - Messaging: Apache RocketMQ, AutoMQ, Kafka - Networking & Proxy: Nginx, Kong, Cilium, eBPF - Orchestration & GitOps: Docker, Kubernetes (EKS), ArgoCD, Helm - Computing & Storage: AWS EC2, VPC, AWS Lambda, EBS, S3 - CI/CD: Jenkins, GitHub Actions - Metrics: Prometheus, Mimir, Grafana, Alertmanager - Logs: Loki, Vector - Traces: Tempo, OpenTelemetry, Alloy - Profiling: Pyroscope - RUM: Grafana Faro, OpenTelemetry SDK - Infrastructure as Code: Terraform - CDN & Edge: Cloudflare, AWS CloudFront - AWS CloudWatch What’s in it for you - Sporty is a remote first company in pursuit of sustainability - A competitive salary + individual performance based bonuses every quarter - 28 days paid annual leave - Our core working hours are 10am-3pm in your local time zone with flexibility outside of this - Referral bonuses & flash bonuses - Top of the line equipment - Annual company retreats to provide great internal networking opportunities Interview process - Remote video screening with our Talent Acquisition Team - Online assessment via Hackerrank - Remote video interview with 3 x Team Members (45 mins each, not separate days) If you’re interested, we encourage you to apply! Every application is reviewed by a member of our team (AI is not used in our recruitment process), and we aim to respond within 48 hours.