Job Description
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
Senior Principal Site Reliability Engineer
Overview
The BizOps team is looking for a Site Reliability Engineer who can help us solve problems and enhance our capabilities by supporting applications services and platforms. This position is to support the Data Delivery and Analytics program to support the growing need of the product like MyMPA QMR.
Technical Skills:
Cloud Unix Shell Scripting SQL Python Apache Nifi Splunk Dynatrace Jenkins GIT XLR etc.
We regularly review our run state not only from an internal perspective but also understanding and providing the feedback loop to our development partners on how we can improve the customer experience of our applications.
Role
We are seeking a Senior Principal Site Reliability Engineer to provide strategic technical and people leadership for the Datawarehouse program. This role will lead On-Prem and Cloud Data engineering teams in St. Louis and partner closely with global counterparts across engineering product operations risk security and customer teams.
The ideal candidate brings a strong techno-functional background deep expertise in data and platform systems and a proven track record of building high-availability low-latency financial platforms with rigorous operational discipline. This technical leader will balance hands-on technical depth with executive-level leadership driving platform modernization resiliency scalability and product innovation while maintaining the highest standards of reliability security and regulatory compliance.
Business Operations is leading the DevOps transformation at Mastercard through our tooling and by being an advocate for change & standards throughout the development quality release and product organizations. 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.
Mission
The role of business operations is to be the production readiness steward for the platform. This is accomplished by closely partnering with developers to design build implement and support technology services. A business operations engineer will ensure operational criteria like system availability capacity performance monitoring self-healing and deployment automation are implemented throughout the delivery process. Business Operations plays a key role in leading the DevOps transformation at Mastercard through our tooling and by being an advocate for change and standards throughout the development quality release and product organizations.
We accomplish this transformation through supporting daily operations with a hyper focus on triage and then root cause by understanding the business impact of our products. The goal of every biz ops team is to shift left to be more proactive and upfront in the development process and to proactively manage production and change activities to maximize customer experience and increase the overall value of supported applications. Biz Ops teams also focus on risk management by tying all our activities together with an overarching responsibility for compliance and risk mitigation across all our environments. A biz ops focus is also on streamlining and standardizing traditional application specific support activities and centralizing points of interaction for both internal and external partners by communicating effectively with all key stakeholders.
Ultimately the role of biz ops is to align Product and Customer Focused priorities with Operational needs.
Apply if you think you have below skills?• Are you a born problem solver who loves to figure out how something works?• Do you take challenge to enhance monitoring capabilities? • Do you have a low tolerance for manual work and look to automate everything you can?• Are you a CI/CD geek who loves all things automation?
Key Responsibilities
Technology & Architecture Leadership• Develop technical vision and execution for the Datawarehouse organization aligned to product and platform roadmap.• Lead architecture and design decisions for large-scale data systems including event-driven architectures messaging/streaming platforms APIs and data stores.• Drive platform modernization initiatives (e.g. cloud adoption containerization service decomposition resilience patterns performance optimization).• Establish and enforce engineering principles and standards for data quality security scalability performance and reliability.• Act as a senior technical authority is able to dive deep into complex system behaviors failure modes and trade-offs when required.
All About You - What you bring:• 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.• 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 desired.
Apply if you think you have below skills?• Are you a born problem solver who loves to figure out how something works?• Do you take challenge to enhance monitoring capabilities? • Do you have a low tolerance for manual work and look to automate everything you can?• Are you a CI/CD geek who loves all things automation?
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. 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 [email protected] and identify the type of accommodation or assistance you are requesting. Do not include any medical or health information in this email. The Reasonable Accommodations team will respond to your email promptly.
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.
Pay Ranges
O'Fallon Missouri: $200000 - $330000 USD
Skills Required
- BS degree in Computer Science or related field
- Experience with algorithms and data structures
- Experience in C C++ Java Python Go Perl or Ruby
- Experience in CI/CD tools like Git Jenkins
What the Team is Saying


Mastercard Compensation & Benefits Highlights
- Retirement Support—Retirement programs include an employer match up to 10% (401k or local equivalent) consistently highlighted in careers materials. Feedback suggests this is a standout component of total rewards.
- Parental & Family Support—A global minimum of 16 weeks paid new‑parent leave is offered for birth adoption or foster placements with financial assistance for fertility adoption and surrogacy where allowed. Feedback suggests these provisions are robust relative to many large employers.
- Flexible Benefits—Flexibility features include hybrid work a four‑week “work from elsewhere” program quarterly meeting‑free days and five paid volunteer days. Feedback suggests these options support work/life balance across many roles.
Mastercard Insights
What We Do
Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers we’re building a resilient 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.
Why Work With Us
We live the Mastercard Way: creating value in the communities we touch growing together through the opportunities we see and moving fast to innovate and scale. Our collaborative culture and our passionate people are the key to what we do driving meaningful change as one team and connecting everyone to priceless possibilities.
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Employees engage in a combination of remote and on-site work.
In our ongoing workplace evolution we’ve introduced hybrid work Work-From-Elsewhere Weeks and Meeting-Free Days.










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Date Posted
05/09/2026
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