Site Reliability Engineer I

OverviewOur PurposeMastercard powers economies and empowers people in 200+ countries and territories worldwide.

Together with our customers, we're helping build 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.Title and SummarySite Reliability Engineer I OverviewThe Arcus Engineering team is looking for a Jr.

Site Reliability Engineer to drive our customer experience strategy forward by consistently innovating and problem-solving.

The ideal candidate is passionate about the customer experience journey, highly motivated, intellectually curious, analytical, and possesses an entrepreneurial mindset who supports the reliability, scalability, and performance of production systems.

This candidate will work closely with engineering and operations teams to automate processes, monitor infrastructure, and respond to incidents.

This role is ideal for someone with a strong foundation in systems and a passion for continuous improvement.RoleSupports quality or process engineering best practices to deliver services and solutions that meet stakeholders needsDevelops foundational knowledge around quality or process engineering best practices to deliver services and solutions that meet stakeholders needsSupports development and validation of dashboards and reports for stakeholder needs and helps identify process improvementsAssists with the development, building, and maintenance of assigned technologies and associated Infra productsResolves standard problems as they arise and provides basic technical assistance to ensure proper infra performanceSupports compliance posture which includes escalating potential concerns, and implementing both risk mitigation plans and control functionsSupports the development of status reports and implementation and troubleshooting activities, providing updates to project plans as neededMay manage smaller project / initiatives as an experienced individual contributor with specialized knowledge within assigned disciplineProvides support to ensure optimal infrastructure or process performanceIdentifies automation that can be used by initial responders for easily resolvable issuesAll About YouThe ideal candidate for this position should : Assist in monitoring, alerting, and incident response for production systems.Support automation of deployment, scaling, and recovery processes.Collaborate with developers to improve system reliability and performance.Document runbooks, procedures, and post-incident analyses.Participate in on-call rotations with guidance from senior engineers.Understands how containers are deployed and managed.

Basic knowledge of containerization (Docker) and orchestration (Kubernetes)Shows interest in automating infrastructure provisioning.

Experience with Infrastructure as Code (e.g., Terraform, CloudFormation)Understands basic principles of access control, encryption, and audit logging.

Awareness of security and compliance best practicesCan clearly explain technical concepts and contribute to team knowledge bases.Able to navigate, troubleshoot, and manage basic server operations.

Intermediate proficiency in Linux systems administrationCapable of writing automation scripts for routine tasks and log parsing.

Basic scripting skills (e.g., Python, Bash)Familiar with core services like EC2, S3, IAM, and monitoring tools.

Understanding of AWS cloud platformUnderstands how code moves from development to production.

Exposure to CI / CD pipelines and version control (e.g., Git, GitHub Actions)Can interpret metrics and logs to identify system health issues.

Familiarity with observability tools (e.g., Prometheus, Dynatrace, Grafana, CloudWatch)Demonstrates logical thinking and persistence when resolving issues.Corporate Security ResponsibilityAll activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must : Abide by Mastercard's security policies and practices;Ensure the confidentiality and integrity of the information being accessed;Report any suspected information security violation or breach, andComplete all periodic mandatory security trainings in accordance with Mastercard's guidelines.

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