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Mid LevelFull-timePythonAWSDockerTerraformAgileCI/CDGit
Salary Range
$76,500 - $103,500 /year
This salary is estimated based on similar roles. The actual salary may vary.
About the Role
Trainline is seeking a mid-level Site Reliability Engineer to join their Reliability & Operations Engineering team. This role involves working on a cloud-native platform built on AWS, focusing on system reliability, observability, and incident management.
Key Responsibilities
- →Develop an understanding of system architecture, dependencies, and failure modes across the Trainline platform
- →Participate in production incident response, supporting investigation, mitigation, communication, and coordinated service restoration
- →Contribute to post-incident reviews and follow-up actions to improve reliability, scalability, and resilience
- →Take part in the SRE on-call rotation
- →Design, build, and maintain observability using metrics, logs, events, and traces
- →Improve monitoring and alerting by aligning signals to business and customer impact
- →Ensure relevant operational data is surfaced quickly and clearly during live incidents
- →Support AWS-hosted infrastructure and shared platform services using infrastructure-as-code and CI/CD tooling
- →Collaborate with product engineering teams to ensure services are operationally ready and deployed safely
- →Advise on reliability and resilience practices
- →Write and maintain reliable, well-structured code and scripts to support reliability and observability goals
- →Prioritize work effectively and collaborate using agile processes to deliver against team and business goals
Requirements
- ✓Experience of SRE concepts such as SLI, SLO and error budgets
- ✓Hands-on experience with observability tooling such as New Relic, Elastic (ELK Stack), Influx, Grafana or similar
- ✓Experience working with cloud providers, preferably AWS
- ✓Experience troubleshooting Linux operating systems
- ✓Experience of scripting in at least one language, preferably Python
- ✓Understanding of load balancing and reverse proxy concepts
- ✓Application architecture concepts (threading, queuing, readiness checks, health checks, circuit breakers, timeouts, exponential backoff, throttling)
- ✓Experience building, maintaining and evolving time series data, retention, cardinality, deviation, moving averages and other functions
- ✓Experience with build, deployment & configuration management tooling such as GitHub Actions and Terraform
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