Site Reliability Engineer II
$76k - $127kMastercard
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 II
The BizOps team at Mastercard is looking for a Site Reliability Engineer (SRE) who thrives on solving complex problems, building robust CI/CD pipelines, and leading the organization in DevOps automation and best practices.
Are You:
A natural problem-solver who loves to understand how things work?
Passionate about CI/CD and obsessed with automation?
Someone with a low tolerance for manual tasks, always seeking ways to automate?
If yes, we want to hear from you.
About the BizOps Team
Business Operations (BizOps) is at the forefront of Mastercard's DevOps transformation, leading the charge through tooling, automation, and advocacy across development, quality, release, and product teams.
We're looking for individuals who:
Have an appetite for change.
Push the boundaries of what automation can achieve.
Build strong relationships across development, operations, and product teams.
Mission
BizOps ensures production readiness by partnering closely with developers to design, build, implement, and support services. Key responsibilities include:
Ensuring operational excellence in availability, performance, capacity, monitoring, self-healing, and deployment automation.
Supporting daily operations with a focus on root cause analysis and business impact.
Driving the "shift-left" approach, engaging early in development to enhance reliability.
Managing risk and compliance across all environments.
Standardizing and streamlining traditional support functions.
Acting as a key communication bridge between internal and external stakeholders.
Aligning product and customer priorities with operational needs.
Responsibilities
Engage in and improve the entire service lifecycle – from design to deployment and operations.
Analyze ITSM platform activities and provide feedback to development teams on operational gaps and resiliency issues.
Provide system design consulting, capacity planning, and launch readiness support.
Monitor and maintain system availability, latency, and health.
Scale systems through automation and reliability-focused improvements.
Support and improve the CI/CD pipeline for software promotion, enforcing validation and operational gating.
Lead DevOps automation initiatives and best practices at Mastercard.
Drive sustainable incident response and conduct blameless postmortems.
Take a holistic approach to problem-solving during production incidents, improving Mean Time to Recovery (MTTR).
Work effectively with a globally distributed team across multiple time zones.
Share knowledge and mentor junior engineers.
Qualifications
BS degree in Computer Science or a related technical field (e.g., Physics, Mathematics) or equivalent practical experience.
Strong foundation in algorithms, data structures, scripting, software design, and pipeline management.
Systematic problem-solving approach with excellent communication, ownership, and drive.
Experience debugging and optimizing code, and automating manual tasks.
Ability to handle high-pressure situations and make decisions with urgency.
Proficiency in one or more programming languages: C, C++, Java, Python, Go, Perl, or Ruby.
Experience working with large-scale distributed systems and troubleshooting them effectively.
Experience with CI/CD tools, such as:
Git/BitBucket
Jenkins
Maven
Artifactory
Chef
Strong background in designing and implementing efficient CI/CD flows that get code from development to production with high quality and minimal manual effort.
Proven track record of working across development, operations, and product teams
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 View email address on techcareers.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.
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: $76,000 - $127,000 USD
$96k - $163k
...services that help people, businesses and governments realize their greatest potential. Title and Summary Senior Site Reliability Engineer Who is Mastercard? At Mastercard technology, we work to connect and power an inclusive, digital economy that...SuggestedFull timePart timeWorldwideFlexible hours$25 - $30 per hour
...and services that help people, businesses and governments realize their greatest potential. Title and Summary Site Reliability Engineering Intern, Summer 2027 – St. Louis, MO, US Why join Mastercard's internship program? Mastercard's internship program...SuggestedFull timePart timeSummer workInternshipWorldwideFlexible hours$96k - $163k
...services that help people, businesses and governments realize their greatest potential. Title and Summary Senior Site Reliability Engineer, Performance Engineering Senior Site Reliability Engineer, Performance Engineering Payment Optimization unifies...SuggestedFull timePart timeWorldwideFlexible hours- ...services that help people, businesses and governments realize their greatest potential. Title and Summary Lead Site Reliability Engineer Job Description Summary Overview: Who is Mastercard? At Mastercard technology, we work to connect and power an...SuggestedFull timePart timeWorldwideFlexible hours
- ...Spark, Airflow, Databricks, AWS and related technologies ~ What are a couple of desired/nice to have skills? Data engineer/SDET # Knowledge of Microservices and scaling techniques # Experience using web service APIs # Ability to...Suggested
$122k - $207k
...services that help people, businesses and governments realize their greatest potential. Title and Summary Manager, Site Reliability Engineering Who is Mastercard? At Mastercard technology, we work to connect and power an inclusive, digital economy that...Full timePart timeWorldwideFlexible hours- ...Lead Site Reliability Engineer Our client, a Credit Card Company, is looking for a Lead Site Reliability Engineer for their Fallon, MO location. Responsibilities: This job is a developing subject matter expert in the Site Reliability Engineering area, influencing...
- Excellent communication skills with the ability to communicate with all levels of management Ability to build rapport and relationships Someone understanding the concept of operations first, focusing on usability, operability of applications from the get go...
$60k - $135k
...Job Title: SRE ENGINEER City: O Fallon State/Province: Missouri Posting Start Date: 9/11/26 Wipro... ...customers on ad-hoc queries. Mandatory Skills: Site Reliability Engineering (SRE). Experience: 5-8 Years....Minimum wageLocal areaShift workWeekend workDay shiftAfternoon shift- ...Position: Kafka Messaging & SRE Engineer Location: O'Fallon, MO (locals preferred) Duration: Long-Term Contract... ...production environments Apply SRE principles to improve reliability, availability, and performance Drive DevOps & automation...Long term contractLocal areaFlexible hours
- ...Engineer II Boyd Gaming Corporation has been successful in gaming jurisdiction in which we operate in the United States and is one of the premier casino entertainment companies in the United States. Never content to rest upon our successes, we will continue to evolve...ApprenticeshipLocal area
- ...Sr. Software Engineer This is hybrid in O'Fallon, Missouri 3 days per week (Tuesday, Thursday, and Friday). Top 3 Required Skills... ...managers to deliver features that make the platform faster, more reliable, and more cost-efficient to run. Key Responsibilities...Work experience placement3 days per week
- ...Senior Software Engineer Visa: No OPT EAD, US Citizen or Green Card preferred Location: Hybrid in O'Fallon, Missouri (... ...extension Interview: 2 client interviews, second one on-site if the candidate is local Location: Hybrid - O'Fallon, MO...Long term contractWork experience placementLocal areaRelocationFlexible hours
- ...better products.Collaborate with development teams to enhance existing software development processes.Partner with developers and test engineers to improve and automate test and release processes.Help make Quality as an integral part of the development process.Coordinate and...
- ...Job TitleBachelor’s degree in information systems, information technology, computer science, engineering, or equivalent work experience.More than 7 years of industry experience.Excellent communication skills, with the ability to interact across multiple organizational...Work experience placement
- ...Senior Software Engineer At Mastercard, our technology and innovation are driven by a clear... ...deliver highly scalable, secure, and reliable billing and pricing capabilities across Mastercard... ...roles; fitness reimbursement or on-site fitness facilities; eligibility for...Full timePart timeFlexible hours
- ...Identify and implement complex automation efforts, including refactoring of automation code where needed. Work closely with software engineers to build quality in, ensuring proper test and requirement coverage, configuration quality, monitoring, early performance testing....
$140k - $231k
...Lead Software Engineer (C/C++)Mastercard powers economies and empowers people in 200+ countries... ...on quality, performance, security, reliability, and engineering excellence. This role... ...eligible roles; fitness reimbursement or on-site fitness facilities; eligibility for...Full timePart timeWorldwideFlexible hours- ...Qlik Software Engineer (hybrid-remote)*This is a 24 month contract to hire role (hybrid-remote)PRIMARY RESPONSIBILITIESDevelop both internal and external dashboards using QlikWork closely with team members from across Client to identify functional and system requirementsWork...Contract workRemote work
- ...user interfaces using Angular JS, ensuring a seamless user experience.Write unit and integration tests to ensure code quality and reliability.Participate in code reviews and provide constructive feedback to peers.Utilize cloud platforms (PCF/Azure) for application...
- Sr. Software Development EngineerLocation: O'fallon, MODuration: 12+ monthsPrimary Skills:C# developmentFront end/angularAPIDesired Skills:SQLBatchRole:Plan, design and develop technical solutions and alternatives to meet business requirements in adherence with MasterCard...
- ...Title: Java Engineer Location: O'Fallon, Missouri Duration: 12+ Months Work Type: Onsite Job Type: Contract VISA: No GC, GCEAD and CPT Interview Process (3 Levels): 1. L1 - Altimetrik Internal Panel (Teams/Zoom)...Contract work
- RequiredEducation: • BachelorsDegreeincomputerscience,Engineeringorarelatedsubject RequiredExperience/skills: • ProficientinnativeiOSdevelopmentusingSwiftandframeworkslikeSwiftUIorUIKit,withasolidunderstandingofObjective-C.Alsoexperiencedincross-platformmobiledevelopmentusingtoolssuchasReactNativeorXamarin...
- ...Senior JAVA Engineer O'Fallon MO - Day 1 Onsite BS in CS 10+ yrs. experience Experience in object-oriented programming and concepts. Experienced in Java backend application development. Comfortable enough in handling algorithms, data structures...
- ...Lead Software Engineer Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our... ..., translating business and system requirements into scalable, reliable, and maintainable solutions Define high- and low-level design...Full timePart timeWorldwideFlexible hours
$152k - $258k
...Director, Platform Engineering Mastercard powers economies and empowers people in 200+ countries... ...infrastructure delivery, and improving reliability, consistency, and velocity across cloud... ...roles; fitness reimbursement or on-site fitness facilities; eligibility for tuition...Full timePart timeWorldwideFlexible hours- C++ Developer – ReplacementLocation: OFALLON, MO – DAY 1 Onsite (hybrid)Duration: Long TermNumber of openings: 1Roles and Responsibilities:Need someone who can analyze C/C++ code and find performance bottlenecks.Proficient in C/C++Proficient in a scripting language (shell...
- ...ID Check, Token Authentication Service and Token Authentication Framework.Required EducationBachelors Degree in computer science, Engineering or a related subjectRequired Experience/SkillsProficient in native iOS development using Swift and frameworks like SwiftUI or...
- Digital Identity Technical ArchitectOverview: As part of an exciting, fast paced environment developing digital identity and security solutions in the mobile and e-commerce space, this position will provide technical expertise within the development lifecycle for new products...
- ...opportunity for you to join the global credit card authorization team. The system facilitates billions of transactions among issuers, acquirers, and service providers. We are looking for engineers that are passionate about development with constant focus on quality....
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Site Reliability Engineer II. Be the first to apply!
- site reliability engineer O Fallon, MO
- junior website developer O Fallon, MO
- construction site safety O Fallon, MO
- on-site clinical research associate (traveling/remote) O Fallon, MO
- junior site reliability engineer
- site reliability engineer
- site reliability engineering manager
- site reliability engineer remote
- lead site reliability engineer
- site reliability engineer sre



