Site Reliability Engineer
Location: Dublin
Duration: 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 role, 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 including upgrades, patching, certificate renewals and configuration changes.
Assess operational readiness 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.
Candidates should hold appropriate RTWs for Ireland i.e. Stamp1G Spousal, Stamp 4, Irish/British/EU passport.
Candidates must be eligible to work full time and long term in the location specified or currently hold a valid appropriate long‑term work Visa to apply.
Equal Employment Opportunity
eirbusiness talent, eir business and our clients are equal opportunity employers who seek to recruit and appoint the best available person for a job regardless of marital / civil partnership status, sex (including pregnancy), age, religion, belief, race, nationality and ethnic or national origin, colour, sexual orientation or disability. eirbusiness talent, eirbusiness and our clients apply all relevant Data Protection laws when processing your Personal Data.
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