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From the employer's careers site First seen 13 Nov 2026

Lead Site Reliability Engineer (Big Data)

Salary

$122,000 - $207,000 USD per year

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Description

Mastercard is seeking a Lead Site Reliability Engineer (Big Data) to join the BizOps team. The successful candidate will help solve problems and enhance capabilities by supporting applications, services, and platforms, particularly for the Data Delivery and Analytics program.

The role involves engaging in and improving the whole lifecycle of services, from inception and design through deployment, operation, and refinement. Key responsibilities include:

  • Analysing ITSM activities of the platform and providing feedback to development teams on operational gaps or resiliency concerns
  • Supporting services before they go live through system design consulting, capacity planning, and launch reviews
  • Maintaining services once they are live by measuring and monitoring availability, latency, and overall system health
  • Scaling systems sustainably through automation and evolving systems by pushing for changes that improve reliability and velocity
  • Supporting the application CI/CD pipeline for promoting software into higher environments through validation and operational gating
  • Practicing sustainable incident response and blameless post-mortems
  • Taking a holistic approach to problem-solving, connecting the dots during a production event through the various technology stacks
  • Working with a global team spread across tech hubs in multiple geographies and time zones
  • Sharing knowledge and mentoring junior resources

The ideal candidate will have a BS degree in Computer Science or a related technical field, experience with algorithms, data structures, scripting, pipeline management, and software design. They should possess strong communication skills, a systematic problem-solving approach, and a sense of ownership and drive.

Preferred qualifications include experience with languages such as C, C++, Java, Python, Go, Perl, or Ruby, as well as industry-standard CI/CD tools like Git, Jenkins, and Chef.

In terms of benefits, Mastercard offers a competitive base salary, annual bonus or commissions, insurance, flexible spending accounts, paid leaves, 401k with a company match, and more.

The salary range for this position in O'Fallon, Missouri is $122,000 - $207,000 USD.

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Skills

Required

Nice to have

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