Senior Site Reliability Engineer
- Location
- O'Fallon, MO
- Listed
- 3 days ago
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
Overview-The ProCOM team is looking for a Site Reliability Engineering (SRE) who can help us solve problems, build our CI/CD pipeline and lead Mastercard in DevOps automation and best practices.
Role
- Engage in and improve the whole lifecycle of services-from inception and design, through deployment, operation and refinement.
- Analyze ITSM activities of the platform and provide feedback loop to development teams on operational gaps or resiliency concerns
- Support services before they go live through activities such as system design consulting, capacity planning and launch reviews.
- Maintain services once they are live by measuring and monitoring availability, latency and overall system health.
- Scale systems sustainably through mechanisms like automation, and evolve systems by pushing for changes that improve reliability and velocity.
- Support the application CI/CD pipeline for promoting software into higher environments through validation and operational gating, and lead Mastercard in DevOps automation and best practices.
- Practice sustainable incident response and blameless postmortems.
- Take a holistic approach to problem solving, by connecting the dots during a production event thru the various technology stack that makes up the platform, to optimize mean time to recover
- Work with a global team spread across tech hubs in multiple geographies and time zones
- Share knowledge and mentor junior resources
For team members supporting the Dev Ops pipeline
- Design, implement, and enhance our deployment automation based on Chef. We need proven experience writing chef recipes/cookbooks as well as designing and implementing an overall Chef based release and deployment process.
- Use Jenkins to orchestrate builds as well as link to Sonar, Chef, Maven, Artifactory, etc. to build out the CI/CD pipeline.
- Support deployments of code into multiple lower environments. Supporting current processes needed with an emphasis on automating everything as soon as possible.
- Design and implement a Git based code management strategy that will support multiple environment deployments in parallel. Experience with automation for branch management, code promotions, and version management is a plus.
Qualifications
- BS degree in Computer Science or related technical field involving coding (e.g., physics or mathematics), or equivalent practical experience.
- Experience with algorithms, data structures, scripting, pipeline management, and software design.
- Systematic problem-solving approach, coupled with strong communication skills and a sense of ownership and drive.
- Ability to help debug and optimize code and automate routine tasks.
- We support many different stakeholders. Experience in dealing with difficult situations and making decisions with a sense of urgency is needed.
- Experience in one or more of the following is preferred: C, C++, Java, Python, Go, Perl or Ruby.
- Interest in designing, analyzing and troubleshooting large-scale distributed systems.
- We need team members with an appetite for change and pushing the boundaries of what can be done with automation. Experience in working across development, operations, and product teams to prioritize needs and to build relationships is a must.
- For work on our dev ops team, engineer with experience in industry standard CI/CD tools like Git/BitBucket, Jenkins, Maven, Artifactory, and Chef.
- Experience designing and implementing an effective and efficient CI/CD flow that gets code from dev to prod with high quality and minimal manual effort is required.
Salary Range
96,00 -163,000
We hire the most qualified candidate for the role. In the US or Canada, if you require accommodations or assistance to complete the online application process or during the recruitment process, please contact and identify the type of accommodation or assistance you are requesting. Do not include any medical or health information in this email.
Corporate Security Responsibility
All 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, and
- Complete all periodic mandatory security trainings in accordance with Mastercard's guidelines.
In line with Mastercard's total compensation philosophy and assuming that the job will be performed in the US, the successful candidate will be offered a competitive base salary and may be eligible for an annual bonus or commissions depending on the role. The base salary offered may vary depending on multiple factors, including but not limited to location, job-related knowledge, skills, and experience.
Mastercard benefits for full time (and certain part time) employees generally include: insurance (including medical, prescription drug, dental, vision, disability, life insurance); flexible spending account and health savings account; paid leaves (including 16 weeks of new parent leave and up to 20 days of bereavement leave); 80 hours of Paid Sick and Safe Time, 25 days of vacation time and 5 personal days, pro-rated based on date of hire; 10 annual paid U.S. observed holidays; 401k with a best-in-class company match; deferred compensation for eligible roles; fitness reimbursement or on-site fitness facilities; eligibility for tuition reimbursement; and many more.
Mastercard benefits for interns generally include: 56 hours of Paid Sick and Safe Time; jury duty leave; and on-site fitness facilities in some locations.
Equal opportunity and legal notices
Mastercard is a merit-based, inclusive, equal opportunity employer that considers applicants without regard to gender, gender identity, sexual orientation, race, ethnicity, disabled or veteran status, or any other characteristic protected by law. The Reasonable Accommodations team will respond to your email promptly.
From Mastercard's careers page, first listed on Rolev.ai on November 6, 2026. Rolev.ai is not the employer.
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Common questions
Where is the Senior Site Reliability Engineer job at Mastercard located?
This Senior Site Reliability Engineer position at Mastercard is located in O'Fallon, MO. Always check Mastercard's application page for specific state eligibility or relocation policies.
How do I apply for the Senior Site Reliability Engineer position at Mastercard?
This listing links directly to Mastercard's Workday application page. You can apply directly on Mastercard's site, or use Rolev.ai to check your resume fit, generate a zero-hallucination tailored resume and cover letter for this posting, and autofill the Workday application form in 1 click with the Rolev.ai Chrome extension. You always review the form and press Submit yourself.