Jobs / Mastercard
Lead Site Reliability Engineer
Mastercard · Dublin, D, Ireland
Dublin, D, IrelandRemote
Remuneration
Not specified
Location
Dublin, D, Ireland
Visa sponsorship
Not specified
Job summary
Leads site reliability for mission-critical payment processing platforms on HP NonStop (Tandem), ensuring availability, resilience, and scalability for real-time transaction systems. The role owns SLOs, incident response, automation, release readiness, and disaster recovery planning for payment switching, while setting operational standards and mentoring engineers.
Qualifications
- Hands-on experience with HP NonStop (Tandem) platforms.
- Knowledge of NonStop OS, Pathway, TMF, EMS, OSS, TACL, and diagnostic tooling.
- Experience supporting high-throughput, low-latency, real-time transaction systems.
- Production reliability experience in 24/7 environments.
- Experience with payment networks or financial transaction processing.
- Understanding of transaction switching, routing, authorization, and settlement flows.
- Familiarity with PCI-regulated, high-availability production systems.
- Lead or Senior SRE or Production Engineering experience preferred.
- Exposure to platform automation, monitoring, or observability tooling preferred.
- Experience with globally distributed teams and systems preferred.
- ITIL or reliability-engineering operational mindset preferred.
Responsibilities
- Own availability, performance, latency, and resilience of payment platforms on HP NonStop.
- Define and enforce SLOs, SLIs, and error budgets for payment services.
- Lead response to high-severity production incidents and coordinate triage, mitigation, and resolution.
- Conduct blameless post-incident reviews and track root-cause follow-up actions.
- Automate monitoring, diagnostics, deployment, and recovery workflows.
- Improve service operability, observability, and failure handling with engineering teams.
- Lead release readiness and production validation for payment-switching changes.
- Define rollback, failover, and recovery strategies; participate in disaster recovery and business continuity exercises.
- Set operational standards for runbooks, monitoring, alerting, and reliability.
- Mentor SREs and operations engineers and influence reliability strategy.
Work schedule
24/7 production environment
Industry
PaymentsFinancial transaction processing
Relocation
No