# Site Reliability Engineer I at Mastercard

Mastercard is hiring a Site Reliability Engineer I. Level rates it Little AI ●○○○; you can [apply on Mastercard](https://jobsbylevel.com/go/9f9ec3a5-4076-4e1b-8864-49841634d307?utm_medium=ai-agent).

AI Level 1, AI centrality 38 out of 100. O'Fallon, Missouri.

## Details

- Company: [Mastercard](https://jobsbylevel.com/companies/mastercard)
- AI level: AI Level 1 (score 38 out of 100)
- Location: O'Fallon, Missouri
- Posted: November 5, 2026
- Apply: https://jobsbylevel.com/go/9f9ec3a5-4076-4e1b-8864-49841634d307?utm_medium=ai-agent
- Free CV review for this job: https://jobsbylevel.com/cv-review?job=site-reliability-engineer-i-at-mastercard-7cf58e

## Description

Our Purpose Mastercard 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 Summary Site Reliability Engineer I Overview The Service Operations Technology (SOT) BizOps team is seeking a Site Reliability Engineer (SRE) to support and enhance enterprise infrastructure, asset management, automation, and operational platforms. This role focuses on reliability, observability, automation, release management, and operational excellence across business-critical services. Are you passionate about understanding complex systems, automating repetitive work, and improving platform reliability? Do you thrive at the intersection of software engineering and operations? Business Operations plays a critical role in Mastercard's DevOps and SRE transformation by partnering with engineering teams to improve operational readiness, automate processes, and ensure platforms meet the highest standards of availability, performance, security, and scalability. Successful candidates are curious, collaborative, and committed to continuous improvement while balancing production support with strategic engineering initiatives. Role Business Operations serves as the operational excellence and production readiness steward for the platforms we support. We partner closely with software engineering teams to design, implement, operate, and continuously improve technology services. As a Site Reliability Engineer, you will ensure operational requirements including availability, resiliency, performance, observability, security, capacity management, and deployment automation are incorporated throughout the software lifecycle. This role bridges engineering and operations by supporting production services, managing operational risk, driving automation, participating in releases, and improving platform reliability through proactive engineering and continuous improvement. Position Qualifications • Experience administering enterprise platforms in production environments, 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; working knowledge of Windows administration and authentication technologies including Active Directory, LDAP, SSH, and service accounts. • Experience supporting software releases, production changes, and operational readiness activities. • Strong scripting and automation skills using Python, PowerShell, Bash, or similar technologies. • Experience with APIs, integrations, workflow automation, and orchestration technologies. • Understanding of monitoring, observability, alerting, and operational health management. • Experience troubleshooting distributed systems across infrastructure, application, network, and integration layers. • Strong analytical, problem-solving, and root cause analysis skills. • Ability to manage operational responsibilities while driving strategic automation and platform improvements. • Strong communication and stakeholder management skills. • Ability to effectively manage and resolve high-severity production incidents. Responsibilities • Support the full service lifecycle from design and implementation through deployment, operation, and optimization. • Serve as an operational owner for critical enterprise platforms, ensuring reliability, availability, performance, and scalability. • Support production readiness reviews, launch assessments, capacity planning, and operational validation. • Monitor, maintain, and

The description is cut here. Read the full offer: https://jobsbylevel.com/jobs/site-reliability-engineer-i-at-mastercard-7cf58e

Source: https://jobsbylevel.com/jobs/site-reliability-engineer-i-at-mastercard-7cf58e

## Cite this page

Level. https://jobsbylevel.com/jobs/site-reliability-engineer-i-at-mastercard-7cf58e.

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