Senior Site Reliability Lead - Payments & Observability

Mastercard Inc.; Howth; Vor Ort; EUR 110.000 - 160.000; Vollzeit

Zusammenfassung

Mastercard Inc. in Ireland is seeking a Lead Site Reliability Engineer to own the reliability and performance of core infrastructure and payments platforms.

You will drive observability, capacity forecasting, and RCA across the Payments Network services to ensure outstanding availability. You will lead incident reviews, mentor SRE colleagues, and collaborate with Product and Development teams to embed reliability through automation, IaC, and robust DR testing, while supporting on‑call readiness

Qualifikationen

• 5-10 years of experience in an SRE or SRE related operations role, including 3+ years supporting e commerce, financial services, or large scale SaaS platforms.
• Excellent infrastructure troubleshooting and analytical problem solving skills.
• Strong hands on experience with observability and monitoring tools such as Splunk, Dynatrace, or equivalent, with a proven ability to triage and investigate complex issues.
• Familiarity with network telemetry tools such as SolarWinds and NetScout.
• Proficiency in packet level debugging, including capturing traffic with tools like tcpdump and analyzing packets using Wireshark.
• Broad understanding of end to end infrastructure supporting payment platforms-spanning platform services, networking, databases, and storage.
• Experience with automation and Infrastructure as Code tools such as Chef, Ansible, and Terraform, as well as structured data formats (JSON/YAML).
• Excellent communication skills with the ability to coordinate cross functional troubleshooting efforts and lead RCA processes to closure.
• Demonstrated ability to troubleshoot complex production issues, perform root cause analysis, and drive long term corrective actions.
• Experience partnering with development teams to shape architecture, define SLIs/SLOs, and embed reliability into services from design through operation.
• Strong understanding of monitoring and observability ecosystems, including Prometheus, Grafana, ELK/EFK, Splunk, Dyantrace, and OpenTelemetry.
• Effective incident management skills with a structured, analytical approach to problem solving.

Aufgaben

• Lead continuous assessments of the application infrastructure supporting critical Mastercard applications, focusing on health, performance, monitoring and alerting, and capacity analysis. Collaborate with Product and Development teams to forecast growth requirements and ensure scalability and resiliency.
• Champion observability as a core principle for infrastructure services by assessing environments and technologies to uncover gaps in monitoring and alerting. Design and implement strategies to close these gaps, ensuring all infrastructure telemetry is integrated into a unified, single-pane-of-glass view. Build custom dashboards to investigate and perform root cause analysis on complex issues.
• Lead regular incident reviews with internal support teams to ensure root causes are identified. When patterns of failure or compatibility issues between software and infrastructure emerge, develop and implement strategies to remediate or mitigate risks.
• Leverage automation and AI technologies to enhance proactive issue detection, enable self-healing capabilities, reducing Mean Time to Detect (MTTD) and Mean Time to Mitigate (MTTM).
• Develop testing and validation plans for new environment builds, disaster recovery exercises and post-maintenance activities to certify environment readiness before customer traffic is routed to it.
• Champion continuous learning, development, and knowledge sharing across networking and other infrastructure disciplines to strengthen multi-disciplinary SRE team capabilities. Lead training initiatives for team members and Product and Development on networking aspects of the platforms.
• Evaluate vendor hardware, firmware, and software upgrade roadmaps, and conduct proof-of-concept (POC) testing to identify potential risks and opportunities for improvement in upcoming releases.

Kenntnisse

SRE experience

Observability tools

Networking knowledge

Automation with IaC

Incident management

Root cause analysis

Stakeholder communication

Monitoring (Prometheus/Grafana)

OpenTelemetry

TCP/IP analysis

Ausbildung

Bachelor's degree in Computer Science or related field

Tools

Splunk

Dynatrace

SolarWinds

NetScout

tcpdump

Wireshark

Terraform

Ansible

Chef

Prometheus

Grafana

ELK/EFK

OpenTelemetry

Jobbeschreibung

Mastercard Inc. in Ireland is seeking a Lead Site Reliability Engineer to own the reliability and performance of core infrastructure and payments platforms.

You will drive observability, capacity forecasting, and RCA across the Payments Network services to ensure outstanding availability. You will lead incident reviews, mentor SRE colleagues, and collaborate with Product and Development teams to embed reliability through automation, IaC, and robust DR testing, while supporting on‑call readiness