Weekend Site Reliability Engineer

What you’ll be doing

- Work with a team of DevOps and DBA professionals; covering Saturday, Sunday and Monday (5 days in total with flexibility in your days off) as a Weekend SRE

- 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 weekend 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 / platform engineering experience

- Must be based in Europe or Asia or LatAM

- 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.
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