> Markdown version of [/jobs/ext/3584500-site-reliability-software-engineer-ii](https://www.wearedevelopers.com/jobs/ext/3584500-site-reliability-software-engineer-ii). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Site Reliability Software Engineer II

- **Company:** Mastercard
- **Location:** O'Fallon, MO, United States
- **Salary:** $125,000.0 - $165,000.0
- **Contract:** Permanent contract
- **Skills:** Amazon Web Services, Microsoft Azure, Bash Shell, Cloud Computing, Monitoring of Systems, Python (Programming Language), Network Security, Linux System Administration, Reliability Engineering, Prometheus, Scripting, Kubernetes, Information Technology, Deployment Automation, Terraform
- **Published:** October 4, 2026
- **Apply:** https://find.jobs/jobs-near-me/apply/ats-redirect/?id=3004133314-2

## About the Role

* Site Reliability Engineering (SRE) practices
 * Cloud platforms (AWS, GCP, or Azure)
 * Linux system administration
 * Kubernetes and container orchestration
 * Infrastructure as Code (Terraform, Cloud
 * Formation, etc.)
 * CI/CD pipelines and automation
 * Monitoring and observability (Prometheus, Grafana, etc.)
 * Scripting (Python, Bash, or similar)
 * Incident management and on-call operations
 * Networking and security fundamentals

## Description

Mastercard is seeking a Site Reliability Engineer II to enhance the reliability, scalability, and performance of critical IT systems. In this role, you will design and implement robust monitoring, automation, and incident response processes to support innovative, user focused software products. You will collaborate closely with development and infrastructure teams to build and maintain highly available, secure cloud environments. The culture emphasizes innovation, collaboration, and continuous growth, offering opportunities to work with cutting edge technologies and drive meaningful improvements in global IT services., * Design, implement, and maintain highly available, scalable production systems.

 * Develop and optimize monitoring, alerting, and observability solutions.
 * Automate deployments, configuration, and operational tasks using Infrastructure as Code and scripting.
 * Collaborate with development and infrastructure teams to improve reliability and performance.
 * Participate in on-call rotations, incident response, and post-incident reviews.
 * Identify and remediate reliability, capacity, and performance bottlenecks.
 * Implement and refine SRE best practices, including SLIs, SLOs, and error budgets.
 * Contribute to security, compliance, and resilience improvements across systems.


## Related Videos

- [SRE Methods In an Agency Environment](https://www.wearedevelopers.com/videos/348-sre-methods-in-an-agency-environment)
- [Old tools, new tricks](https://www.wearedevelopers.com/videos/1916-old-tools-new-tricks)
- [Infrastructure as Code: The Developer's Secret Weapon](https://www.wearedevelopers.com/videos/1221-infrastructure-as-code-the-developer-s-secret-weapon)
- [JavaScript? No. Java Scripts! - Scripting with Java](https://www.wearedevelopers.com/videos/2094-javascript-no-java-scripts-scripting-with-java)
- [Leading with Reliability: Applying SRE Principles to Build Stronger Engineering Organizations](https://www.wearedevelopers.com/videos/100185-leading-with-reliability-applying-sre-principles-to-build-stronger-engineering-organizations)
- [Your AI Agent is just a while loop with an API call. Let me prove it](https://www.wearedevelopers.com/videos/1988-your-ai-agent-is-just-a-while-loop-with-an-api-call-let-me-prove-it)

## Related Articles

- [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated)
- [Why Upskilling And Reskilling is Important For Developers](https://www.wearedevelopers.com/magazine/428-why-upskilling-and-reskilling-is-important-for-developers)
- [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers)
- [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again)
- [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers)
- [Best Countries for Software Engineers](https://www.wearedevelopers.com/magazine/267-best-countries-for-software-engineers)