Mastercard

Mastercard is seeking a Software Engineer II to build secure, scalable applications for the Financial Services industry within our dynamic IT organization. You will design and implement cloud-based services, integrations, and APIs, writing clean, testable code and collaborating closely with product, architecture, and QA in an Agile environment. In our inclusive, innovation-driven culture, you'll work with modern tools and CI/CD, ensure compliance with security and regulatory standards, and mentor junior engineers while growing your skills with cutting-edge technologies. Responsibilities Design, develop, and maintain scalable financial software solutions in a cloud-first environment Write clean, testable, and well-documented code following Mastercard and industry best practices Collaborate with product owners, architects, and QA to refine requirements and deliver high-quality features Implement integrations with internal and external financial services platforms and APIs Participate in code reviews, sprint planning, and Agile ceremonies Troubleshoot, debug, and optimize applications for performance, resiliency, and security Contribute to automated testing and CI/CD pipelines Ensure compliance with security, regulatory, and data privacy standards in financial services Mentor junior engineers and share knowledge across the team Continuously evaluate and adopt modern tools, frameworks, and engineering practices Required Skills Java or C programming (OOP) RESTful APIs and microservices SQL and relational databases Cloud platforms (AWS, Azure, or GCP) CI/CD tools (Jenkins, Git Hub Actions, or similar) Automated testing (JUnit, NUnit, or similar) Version control with Git Secure coding practices Agile/Scrum methodologies

As Manager, Software Engineering at Mastercard in Financial Services within the Information Technology (IT) & Digital Solutions department, you will lead high-performing teams building secure, scalable applications that power global businesses. You will define technical strategy, drive Agile delivery, and ensure engineering excellence across the software development lifecycle. In a culture centered on innovation, collaboration, and growth, you will mentor engineers, promote modern architectures and cloud-native practices, and partner closely with product and business stakeholders. This role offers the opportunity to work with cutting-edge technologies while shaping impactful digital solutions for a leader in innovative software. Responsibilities Lead and mentor software engineering teams delivering financial services solutions Collaborate with IT & Digital Solutions to define architecture and technical strategy Drive end-to-end delivery of secure, scalable applications on schedule and budget Ensure code quality, testing, and compliance with industry and Mastercard standards Partner with product owners to translate business requirements into technical roadmaps Promote Agile best practices, continuous integration, and continuous delivery Hire, develop, and performance-manage engineering talent Foster a culture of innovation, collaboration, and continuous improvement Coordinate with security, infrastructure, and data teams on solution design Report on delivery status, risks, and KPIs to senior leadership Required Skills Java Microservices architecture RESTful APIs Cloud platforms (AWS/Azure/GCP) Relational and No SQL databases Secure software development (OAuth2, TLS, PCI basics) CI/CD tools (Jenkins/Git Hub Actions/Git Lab CI) Containerization and orchestration (Docker, Kubernetes) Agile/Scrum delivery Software architecture and design patterns

Mastercard seeks a Manager, Site Reliability Engineering to lead a team ensuring secure, scalable, and highly available platforms. You will design and implement SRE best practices, build automation for deployment and operations, and drive observability across complex cloud-native systems. Partner with development and security teams to improve reliability, performance, and incident response. You'll mentor engineers, champion continuous improvement, and help shape a culture of innovation, collaboration, and learning while working with cutting-edge technologies in a global environment. Responsibilities Lead and mentor an SRE team supporting mission-critical platforms Define and implement SRE best practices for reliability, scalability, and security Design automation for deployments, configuration, and operations Establish and improve monitoring, logging, and alerting for cloud-native systems Drive incident management, root-cause analysis, and post-incident reviews Collaborate with software engineering and security teams to improve system design Optimize performance and capacity planning across services Promote continuous improvement and a learning culture within the team Required Skills Site Reliability Engineering (SRE) Cloud platforms (AWS/Azure/GCP) Kubernetes & container orchestration Linux systems administration CI/CD pipelines Infrastructure as Code (Terraform/Cloud Formation) Monitoring & observability (Prometheus/Grafana/New Relic) Incident management & on-call operations Performance tuning & capacity planning Scripting (Python/Bash)

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 Engineer-2 Overview: 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 MastercardWhat 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. 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 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: $122,000 - $207,000 USD

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 Senior Site Reliability Engineer, Performance Engineering Senior Site Reliability Engineer, Performance Engineering Payment Optimization unifies multiple Mastercard capabilities to improve transaction success, reduce avoidable declines, and simplify issuer, acquirer, and merchant interactions across the payment lifecycle. The program centralizes account update orchestration and lifecycle management, leverages AI-driven optimization intelligence, and executes time-critical optimization actions while maintaining clear domain ownership and scalable boundaries. We build products for scale. The SRE & Performance Engineering team is looking for a strong, innovative engineer to help optimize and scale our suite of services. This role supports Automatic Billing Updater (ABU), which securely provides participating issuers' updated cardholder account information-such as account number and expiration date-to ABU-registered merchants. ABU helps reduce preventable card-not-present transaction declines by keeping credential-on-file and recurring payment information current throughout the issuer-cardholder relationship. In this role, you will apply your experience in API performance testing, automation, scripting, data setup, AI-assisted script generation, bottleneck discovery, performance tuning, and performance data analysis. You will contribute to capacity planning, platform resiliency, and automation practices that improve engineering velocity and operational quality. Role • Partner with site reliability engineers and performance engineers to test and tune ABU services before production release through automated test suites, system design consulting, bottleneck analysis, chaos testing, capacity planning, and launch reviews. • Build, manage, and maintain robust performance testing suites. • Measure and monitor availability, latency, throughput, performance, and overall system health; communicate test results and recommendations clearly. • Scale systems sustainably through automation and recommend changes that improve reliability, velocity, and performance. • Review production incidents, identify contributing factors, and drive solutions that reduce recurrence. • Manage project priorities, deadlines, and deliverables independently. • Approach work with an automation mindset and automate repeatable tasks wherever practical. • Apply deep technical expertise to coach and mentor technical talent. All About You • Use AI-assisted engineering tools to accelerate performance test script generation, test data preparation, log analysis, anomaly detection, and repetitive automation while validating outputs through sound engineering review. • Apply data-driven analysis, observability insights, and automation patterns to identify performance trends, isolate bottlenecks, and recommend measurable improvements to scalability and reliability. Education (preferred): Bachelor's degree in Computer Science, Computer Systems, Information Technology, or a related field, or equivalent practical experience. Minimum: • Advanced knowledge of web applications and distributed systems infrastructure. • Excellent verbal and written communication skills for audiences with varying levels of technical acumen. • Experience with performance bottleneck analysis and system design for scale. • Experience with Java Virtual Machine internals and garbage collection tuning. • Experience with one or more of the following: database internals, server or operating system internals, storage system internals, or performance scaling for related platforms. • Experience implementing automated performance regression test suites for low-latency, high-throughput financial applications. • Experience analyzing performance bottlenecks across application code, databases, cache layers, data stores, servers, networks, messaging queues, and streaming platforms. • Experience analyzing issues holistically, from edge components through application tiers and databases. • Experience working directly with internal customers, resolving issues and providing performance engineering leadership. • Working knowledge of AI-assisted development and analysis techniques, including prompt-driven script generation, automation workflow creation, test result summarization, and root cause analysis support. Preferred: • Experience with Java, Python, Scala, or other programming and scripting languages. • Experience with Bitbucket, Maven, Jenkins, Gatling, and BlazeMeter. • Experience migrating legacy on-premises testing suites to cloud-native stacks. • Experience migrating performance testing suites from LoadRunner to Gatling or BlazeMeter. • Strong software performance analysis, bottleneck identification, scaling, and automation experience. • Experience using AI-enabled tools or large language models to generate, refactor, explain, or optimize performance testing scripts, automation utilities, and troubleshooting workflows. • Experience applying AI-assisted analysis to performance metrics, logs, traces, dashboards, and incident data to identify patterns, summarize findings, and support faster remediation. • Familiarity with responsible AI practices, including validation of AI-generated outputs, protection of sensitive data, and alignment with enterprise security and compliance expectations. Skills/Abilities: • Displays initiative and ownership. • Detail-oriented and customer-focused. • Ability to multi-task and prioritize efforts. • Ability to learn new technologies quickly and apply them effectively. • Ability to leverage AI and automation tools responsibly to improve productivity, analysis quality, and consistency while maintaining sound engineering judgment. • Strong analytical mindset with the ability to translate performance data, AI-assisted insights, and operational signals into clear recommendations. • Ability to work effectively with team members across multiple geographies. • Excellent collaboration skills with cross-functional teams. • Ability to provide positive, professional support to internal and external business partners. 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 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: $96,000 - $163,000 USD

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 Senior Site Reliability Engineer 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. About the Role The Business Operations team is seeking a highly motivated and experienced Senior Site Reliability Engineer (SRE) to join our team. You will play a critical role in ensuring the reliability, scalability, and performance of our applications, supporting essential services that power Mastercard's global operations. As a thought leader in your field, you will bring technical expertise, a passion for automation, and the ability to mentor. The role of the Business Operations Site Reliability Engineer is to be the production readiness steward for Mastercard products. As Business Operations SRE, we are responsible for ensuring that our platform is stable and healthy. We break down barriers to running 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 principles that include operational design, automation, capacity planning, and 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 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. As part of the Business Operations team, you will: • Independently execute key elements of projects/processes within the Site Reliability Engineering area by applying in-depth knowledge of their discipline and area best practices to effectively resolve problems and roadblocks as they occur. • Assist in evaluating operational requirements and developing technical solutions within existing frameworks. • Support automation and scripting efforts to improve operational workflows and incident response processes. • Troubleshoot and resolve routine and some complex system issues, escalating when necessary to maintain system health. • Contribute to documentation, knowledge sharing, and best practices to enhance team operational procedures. • Collaborate with development teams and stakeholders to ensure reliability solutions align with technical and business needs. • Participate in reviews and quality assurance activities to uphold system stability standards. • May contribute to solution development for new products/services and/or manage smaller project/initiatives as an experienced individual contributor with specialized knowledge within the Site Reliability Engineering area. Role qualifications: The ideal candidate will apply the following skills independently in routine and moderately complex situations, requiring occasional guidance typically only in unfamiliar or highly complex scenarios. They will demonstrate growing consistency and reliability in applying the skills. • Observability - Ability to use scripting and tooling to implement observability solutions, enabling the collection, analysis, and visualization of metrics, logs, and traces to support incident detection, diagnosis, and continuous service improvement. • Programming and Scripting - Ability to write and maintain code and scripts to automate tasks, build operational tools, and support monitoring, deployment, and incident response using languages such as Python, Go, Bash, or similar. • Systems and Network Administration - Ability to configure, operate, and troubleshoot Linux/Unix systems and network components, applying knowledge of networking concepts, protocols, security, and system reliability. • Cloud Computing and Infrastructure - Ability to design, deploy, and manage applications and infrastructure on cloud platforms (e.g., AWS, Azure, GCP), ensuring scalability, security, availability, and operational efficiency. • Reliability and Scalability - Ability to design and operate systems for high availability, fault tolerance, and disaster recovery, while ensuring systems can scale to meet current and future demand • DevOps Practices - Ability to apply DevOps principles and practices, including CI/CD pipelines, containerization, and orchestration, to enable faster, more reliable software delivery and operations. • Troubleshooting - Capability to systematically identify, diagnose, and resolve technical issues across systems, applications, and networks, using analytical methods and tools to restore functionality, minimize disruption, and ensure stable operations. • Capacity Planning and Performance Optimization - Ability to monitor resource utilization, forecast future capacity needs, and optimize system performance to support growth, scalability, and efficient infrastructure usage. • IT Service Management - Ability to apply IT service management principles to incident, problem, and change management, ensuring reliable service delivery, effective incident response, and continuous service improvement aligned to business needs. • Proactive Monitoring and Improvement (SRE Applications) - The ability to use application reliability signals to anticipate issues, identify risks, and drive preventative improvements that enhance application performance and availability. 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 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 . click apply for full job details

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 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

Mastercard is seeking a Senior Site Reliability Engineer to enhance reliability, scalability, and performance of our critical IT & Data Management platforms. You will design resilient architectures, automate deployments, and champion observability to ensure always-on services. Collaborating with cross-functional teams, you'll identify and resolve production issues, implement robust incident management, and drive SRE best practices. This role offers the opportunity to work with cutting-edge cloud and container technologies in a culture that values innovation, collaboration, and continuous growth. Responsibilities Design and maintain highly available, scalable, and secure cloud infrastructure for Mastercard's IT & Data Management platforms. Build and improve automation for deployments, configuration management, and infrastructure provisioning. Implement and refine monitoring, logging, and alerting to ensure service reliability and rapid incident detection. Lead and participate in incident response, root cause analysis, and post-incident reviews to drive continuous improvement. Partner with development and data teams to embed SRE best practices, including SLIs/SLOs and capacity planning. Optimize system performance and cost efficiency across distributed, cloud-native environments. Develop tools and scripts to reduce toil and improve operational excellence. Contribute to security, compliance, and governance standards within production environments. Required Skills Site Reliability Engineering (SRE) Cloud platforms (AWS, Azure, or GCP) Kubernetes and containerization (Docker) Infrastructure as Code (Terraform/Cloud Formation) CI/CD pipelines (Jenkins, Git Hub Actions, Git Lab CI) Linux systems administration Monitoring and observability (Prometheus, Grafana, Datadog, New Relic) Scripting/programming (Python, Go, Bash) Distributed systems and microservices Incident management and on-call operations

Mastercard is seeking a BizOps Engineer II to join our Information Technology & Data Management team in Financial Services. In this role, you will optimize and support mission-critical platforms that power secure, high-volume transactions worldwide. You'll design and implement robust monitoring, automation, and incident management solutions to ensure high availability, performance, and scalability. Collaborating closely with software engineers, data engineers, and product teams, you will troubleshoot complex issues, analyze system metrics, and drive continuous improvement across infrastructure and applications. This position offers the opportunity to work with cutting-edge cloud and data technologies while influencing operational best practices and reliability standards. You'll contribute to incident response, root-cause analysis, and post-incident reviews, helping to build more resilient systems. Mastercard's culture emphasizes innovation, collaboration, and continuous learning, giving you room to experiment with new tools and approaches. If you are passionate about system reliability, automation, and bridging the gap between development and operations in a dynamic, global environment, this role provides a chance to make a tangible impact on secure digital payments worldwide. Responsibilities Design, implement, and maintain monitoring, alerting, and observability for mission-critical applications and infrastructure. Automate operational tasks, deployments, and remediation workflows to improve reliability and reduce manual intervention. Collaborate with software and data engineering teams to optimize system performance, scalability, and resilience. Lead and participate in incident response, troubleshooting complex production issues, and driving timely resolution. Conduct root-cause analysis and implement long-term fixes to prevent recurrence of incidents. Support CI/CD pipelines and release processes to enable safe, rapid, and reliable deployments. Analyze system metrics and logs to identify bottlenecks, trends, and optimization opportunities. Contribute to reliability best practices, runbooks, and operational documentation. Partner with security and compliance teams to ensure systems meet regulatory and security requirements. Mentor junior team members and help foster a culture of continuous improvement and learning. Required Skills Site Reliability Engineering (SRE) practices Cloud platforms (AWS, GCP, or Azure; AWS preferred) Infrastructure as Code (Terraform, Cloud Formation, or similar) Linux systems administration Containerization and orchestration (Docker, Kubernetes) CI/CD pipelines (Jenkins, Git Lab CI, or similar) Monitoring and observability (Splunk, Prometheus, Grafana, Cloud Watch) Scripting/programming (Python, Bash, or similar) SQL and basic data querying/analysis Incident management and root-cause analysis

Mastercard is seeking a Lead Site Reliability Engineer to drive reliability, scalability, and security for mission-critical financial services platforms. You will design and optimize cloud-native, highly available systems, implement SRE best practices, and lead incident response and postmortems. Partnering with IT and Cybersecurity teams, you'll automate deployments, observability, and resilience testing while mentoring engineers. Ideal candidates bring deep experience with cloud, CI/CD, infrastructure-as-code, and securing large-scale, distributed systems in a regulated environment. Responsibilities Lead design and operation of highly available, secure, and scalable financial services platforms. Define and implement SRE best practices, including SLOs, SLIs, and error budgets. Architect and maintain cloud-native infrastructure using infrastructure-as-code and automation. Own incident response, root cause analysis, and postmortems for critical production issues. Drive observability across systems with robust monitoring, logging, and alerting solutions. Collaborate closely with IT and Cybersecurity teams to embed security and compliance into the stack. Optimize performance, capacity planning, and cost management for large-scale distributed systems. Mentor and guide engineers on SRE principles, tooling, and operational excellence. Continuously improve CI/CD pipelines and deployment strategies for safer, faster releases. Champion a culture of reliability, innovation, and continuous improvement within the team. Required Skills Site Reliability Engineering (SRE) Public cloud platforms (AWS, GCP, or Azure) Kubernetes and container orchestration Linux systems engineering and administration Infrastructure as Code (Terraform, Cloud Formation, or similar) CI/CD pipelines (Jenkins, Git Lab CI, Git Hub Actions, or similar) Monitoring and observability (Prometheus, Grafana, Datadog, Splunk, etc.) Scripting/programming (Python, Go, or similar) Security and compliance for financial/regulated environments Incident management and on-call operations