Lead Site Reliability Engineer
Mastercard2 days ago
Dublin, IrelandStaff+
Responsibilities
- Implement and maintain high-availability system solutions for stability, performance, and operational continuity.
- Design and operate systems for reliability, scalability, fault tolerance, and disaster recovery.
- Lead automation and scripting for operational processes and incident-response workflows.
- Configure, operate, and troubleshoot Linux/Unix systems, networks, applications, and cloud infrastructure.
- Implement observability solutions using metrics, logs, and traces to support detection, diagnosis, and service improvement.
- Perform incident triage, troubleshooting, root-cause analysis, blameless post-mortems, and proactive risk mitigation.
- Support capacity planning, performance optimization, production readiness, and change management.
- Contribute to operational documentation, quality assurance, standards, knowledge sharing, and best practices.
- Guide and mentor junior team members and influence stakeholders on reliability and operational improvements.
Requirements
- Experience applying observability practices to collect, analyze, and visualize metrics, logs, and traces.
- Ability to write and maintain automation code and scripts using Python, Go, Bash, or similar languages.
- Knowledge of Linux/Unix systems, network administration, networking concepts, protocols, security, and system reliability.
- Ability to design, deploy, and manage applications and infrastructure on AWS, Azure, GCP, or similar cloud platforms.
- Ability to design and operate highly available, fault-tolerant, scalable systems with disaster recovery capabilities.
- Knowledge of DevOps practices including CI/CD pipelines, containerization, and orchestration.
- Ability to troubleshoot complex technical issues across systems, applications, and networks.
- Knowledge of capacity planning, resource utilization monitoring, and performance optimization.
- Ability to apply IT service management principles to incident, problem, and change management.
- Ability to identify reliability risks and drive preventative improvements to application performance and availability.
- Ability to work independently in complex or nuanced situations and support or coach others informally.
About Mastercard
Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we’re building a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential.