Site Reliability Engineer

Role/Job title - Site Reliability Engineer

Work Location - Dublin 

Role type - Permanent/Fixed Term/ Contracting – Contracting

Mode of working – Hybrid /office based -  Hybrid

If Hybrid, how many days are required in office? – 3

Duration of assignment -6 months

The Role

As a site Reliability Engineer supporting MQ, NATS/Event Broker, you will be responsible for the stability and resilience of Mastercard’s messaging backbone. You will partner closely with application teams, platform engineering, infrastructure and security teams to reduce operational risk, improve system reliability, and ensure issues are detected and resolved before customer impact. This is a Production-focused engineering roles, not an application development role.

Your responsibilities:

• Ensure high availability, performance, and resilience of MQ, NATS/Event Broker platforms across environments.
• Participate in on-call rotations and provide hands –on support during production incidents
• Lead or contribute to incident triage, mitigation, and service restoration.
• Perform root cause analysis (RCA) and drive corrective and preventive actions to closure.
• Design, implement and maintain monitoring, alerting, and dashboards to enable proactive detection.
• Support and govern production changes and including upgrades, patching, certificate renewals and configuration changes.
• Asses operational reediness for changes and ensure rollback and validation plans are in place.
• Automate operational tasks and workflows to reduce manual effort and improve recovery times.
• Partner with application teams to support onboarding, scaling and operational best practices.