Senior SRE Engineer

About the role

OnStar, a cornerstone of General Motors' connected services, is scaling its Site Reliability Engineering (SRE) organization in Dublin to keep the OnStar product line resilient, performant and scalable for millions of customers. The role seeks an experienced technical leader with a deep background in SRE, cloud operations and project ownership to define, build and evolve reliability practices across OnStar's customer-facing experiences and the services behind them.

Key responsibilities

• Lead the design and implementation of scalable, fault-tolerant and observable infrastructure supporting OnStar mobile and web experiences, in-vehicle services and backend platforms.
• Champion configuration management, infrastructure refactoring and testing frameworks to strengthen system resilience.
• Partner with SRE, development and product teams to improve service reliability, deployment safety and incident response.
• Drive internal consultation on reliability standards for new capabilities, customer-facing releases and platform initiatives.
• Define observability strategy using Prometheus, Grafana and Datadog, with automated alerting and SLO dashboards.
• Own and improve on-call practices, manage blameless postmortems and guide root cause analysis.
• Mentor engineers and help shape a high-performance culture rooted in extreme ownership.
• Support privacy-driven engineering and compliance initiatives, with possible work on data retention and safety certification tooling.

Required profile

• 8+ years in SRE, DevOps or systems engineering, including managing or mentoring high-impact teams.
• Track record of building and maintaining high-scale, cloud-native systems (preferably AWS, GCP or Azure).
• Experience leading cross-functional infrastructure projects, configuration strategy or organizational tooling initiatives.
• Ability to think and act under pressure, and strong communication skills to influence and mentor across teams.
• Familiarity with privacy engineering, data security or compliance frameworks is a plus.

Required skills

• Container orchestration and deployment strategies with Kubernetes and CI/CD pipelines.
• Proficiency in Python, Go or Java, with strong code review standards.

The role is hybrid, with reporting to the office at least three times per week.