Mastercard

Site Reliability Engineer I

Mastercard
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1 day ago
O'Fallon, MO, USAEntry Level
H1B sponsor

Base Salary

$61k - $102k/yr

Responsibilities

  • Support services throughout design, implementation, deployment, operation, and optimization.
  • Act as the operational owner for critical enterprise platforms and improve their reliability, availability, performance, and scalability.
  • Conduct production readiness reviews, launch assessments, capacity planning, and operational validation.
  • Monitor, maintain, and troubleshoot production services and distributed systems.
  • Lead incident response, root cause analysis, and long-term corrective actions for high-severity incidents.
  • Drive automation, deployment improvements, and platform engineering initiatives that reduce operational toil and risk.
  • Perform operating-system maintenance, patching, vulnerability remediation, and lifecycle management.
  • Analyze operational data and ITSM activities to identify resiliency improvements and operational risks.
  • Collaborate with globally distributed engineering, operations, product, and infrastructure teams.
  • Maintain operational documentation and contribute to knowledge sharing and mentoring.

Requirements

  • Experience administering enterprise platforms in production, including upgrades, patching, troubleshooting, performance tuning, and operational support.
  • Experience with CMDB, discovery, asset management, inventory management, or related enterprise technologies.
  • Strong Linux/Unix administration skills and working knowledge of Windows administration and authentication technologies including Active Directory, LDAP, SSH, and service accounts.
  • Experience supporting software releases, production changes, operational readiness, APIs, integrations, workflow automation, and orchestration technologies.
  • Strong scripting and automation skills using Python, PowerShell, Bash, or similar technologies.
  • Understanding of monitoring, observability, alerting, and operational health management.
  • Experience troubleshooting distributed systems across infrastructure, application, network, and integration layers.
  • Experience with software engineering principles, pipeline management, system design, source control systems, CI/CD platforms, artifact repositories, and infrastructure automation technologies.
  • Experience in one or more programming languages such as Python, Java, Go, C++, Ruby, or similar.
  • Knowledge of Site Reliability Engineering principles, DevOps practices, observability, automation-first operations, and continuous improvement.
  • Bachelor’s degree in Computer Science, Engineering, Mathematics, or a related field, or equivalent experience.
  • Strong analytical, problem-solving, communication, stakeholder-management, ownership, and prioritization skills, including the ability to resolve high-severity production incidents.

Benefits

  • Full-time employee benefits generally include medical, prescription drug, dental, vision, disability, and life insurance; flexible spending and health savings accounts; paid leave; vacation and personal days; paid U.S. holidays; 401(k) matching; fitness reimbursement or on-site fitness facilities; and tuition reimbursement.
  • The position is listed in O’Fallon, Missouri.
  • Mastercard intends to fill the position by 02/03/2027, or as soon as possible if that date has passed.

Tech Stack

BashC++GoJavaLinuxPowerShellPythonRubyWindows

Categories

Site Reliability
Mastercard

About Mastercard

10,000+ employees

Mastercard builds and operates a global payments network used by banks, merchants, fintechs, and governments, offering card processing, real-time payments, tokenization, and fraud/risk services. It generates revenue from transaction processing and assessment/service fees across more than 200 countries and territories. Founded in 1966 and headquartered in Purchase, New York, Mastercard is a public company listed on the NYSE (ticker: MA).

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