Lead Site Reliability Engineer
MastercardRole Overview
Mastercard is hiring a Lead Site Reliability Engineer. This is a full-time role in O'Fallon, Missouri. Part of Mastercard's Devops hiring, posted today. applications are still in the early window, before most candidates have applied. Full responsibilities, required qualifications, and the apply link are listed in the description below.
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Job 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
Lead Site Reliability EngineerJob Description SummaryOverview:
Who is Mastercard? At Mastercard technology, we work to connect and power an inclusive, digital economy that benefits everyone, everywhere, by making transactions safe, simple, smart, and accessible. Using secure data and networks, partnerships, and passion, our innovations and solutions help individuals, financial institutions, governments, and businesses realize their greatest potential. Our decency quotient, or DQ, drives our culture and everything we do inside and outside of our company. We cultivate a culture of inclusion for all employees that respects their individual strengths, views, and experiences. We believe that our differences enable us to be a better team – one that makes better decisions, drives innovation, and delivers better business results. Technology at Mastercard. What we create today will define tomorrow. Revolutionary technologies that reshape the digital economy to be more connected and inclusive than ever before. Safer, faster, more sustainable. And we need the best people to do it. Technologists who are energized by the challenges of a truly global network. With the talent and vision to create the critical systems and products that power global commerce and connect people everywhere to the vital goods and services they need every day. Working at Mastercard means being part of a unique culture. Inclusive and diverse, a rich collaboration of ideas and perspectives. A place that celebrates your strengths, values your experiences, and offers you the flexibility to shape a career across disciplines and continents. And the opportunity to work alongside experts and leaders at every level of the business, improving what exists, and inventing what’s next.
Role:
The Business Operations (Biz Ops) team is seeking a Business Operations Site Reliability Engineer (SRE)The role of Business Operations Organization is to be the production readiness steward for Mastercard products. As a Business Operations SRE, we are responsible for ensuring that our platform is stable and healthy. We break down barriers to run our products by fostering developer run ownership and empowering developers to build resilient products. We support our developers during the application build phase in software run principals that includes operational design, automation, capacity planning, monitoring that leads to fault-tolerant, scalable products. We see the big picture and help create and enforce operations standards while facilitating an agile and learning culture. We are seeking a highly motivated and experienced Lead Site Reliability Engineer (SRE) to join our growing team. You will play a critical role in ensuring the reliability, scalability, and performance of our Java, Spring Framework applications, supporting essential services that power Mastercard's global operations. As a leader thought leader in your field, you will bring technical expertise, a passion for automation, and the ability to mentor and guide less experienced junior engineers. We support daily operations with a hyper focus on triage, root cause by understanding the business impact of our products and subsequently performing blameless post-mortems. The goal of every Business Operations team is to engage early in the development lifecycle 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. Business Operations 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. Ultimately, the role of Business Operations is to align Product and Customer Focused priorities with Operational needs by providing continuous feedback throughout the lifecycle.
All about you-Team Specific Skills:
Biz Ops engineers engage in various roles:- Operational Readiness Architect: Ensure application health, performance, and capacity; support pre-launch activities.- Site Reliability Engineering: Design resilient infrastructure, perform root cause analysis, and automate alerts.- DevOps/Automation: Improve service lifecycle, support CI/CD pipelines, and reduce manual intervention.- ITSM Practices: Analyze platform activities and provide feedback to development teams. Role qualifications: Ideal candidates have:- BS in Computer Science or related field.- Proficiency in Java, Spring Framework, Python, or Go.- Strong DevOps and configuration management skills.-
Experience with distributed systems and automation.- Problem-solving, communication, and leadership abilities.- Passion for observability and continuous improvement.- Willingness to learn and collaborate across teams.
Target Salary Range:
122,000 - 207,000Mastercard 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 reasonable_accommodation@mastercard.com 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.
About Mastercard
Mastercard
mastercard.com
20 other open roles at Mastercard on TryApplyNow.
Frequently Asked Questions
How do I apply for the Lead Site Reliability Engineer position at Mastercard?
Use the Apply button above to submit your application directly to Mastercard. Most applications take less than 5 minutes if your resume and contact details are ready, and you'll be routed to the employer's official application system to finish.
Where is the Lead Site Reliability Engineer position at Mastercard located?
This position is based in O'Fallon, Missouri. Mastercard has not indicated remote or hybrid options for this role, so candidates should plan for on-site work.
What does a Lead Site Reliability Engineer at Mastercard earn?
Mastercard has not disclosed a salary range in this posting. Many employers share specifics later in the interview process; you can also ask during a recruiter screen if compensation transparency is important to you.
When was the Lead Site Reliability Engineer role at Mastercard posted?
This role was posted on July 24, 2026 (today). It's still listed as actively hiring; we re-confirm openings against the source system multiple times per day and remove closed roles.
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