Developing an understanding of system architecture, dependencies, and failure modes across the Trainline platform
Participating in production incident response, supporting investigation, mitigation, communication, and coordinated service restoration
Contributing to post-incident reviews and follow-up actions to improve reliability, scalability, and resilience
Taking part in the SRE on-call rotation
Designing, building, and maintaining observability using metrics, logs, events, and traces to support effective detection and diagnosis
Improving monitoring and alerting by aligning signals to business and customer impact, reducing noise and improving mean time to detection (MTTD)
Ensuring relevant operational data is surfaced quickly and clearly during live incidents
Making informed tooling and technology choices using SRE principles, balancing team and business needs
Supporting AWS-hosted infrastructure and shared platform services using infrastructure-as-code and CI/CD tooling
Collaborating with product engineering teams to ensure services are operationally ready and deployed safely
Advising on reliability and resilience practices
Writing and maintaining reliable, well-structured code and scripts to support reliability and observability goals
Prioritising work effectively and collaborating 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, upstream config concepts, upstream health checks, worker & data flow 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.

Benefits

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools

SRE conceptsSLISLOerror budgetsobservability toolingNew RelicElastic (ELK Stack)InfluxGrafanascripting (Python)

Soft Skills

collaborationcommunicationprioritizationagile processes