8 jobs found in O Fallon

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.

Mastercard is seeking a Site Reliability Engineer II to enhance the reliability, scalability, and performance of critical IT systems. In this role, you will design and implement robust monitoring, automation, and incident response processes to support innovative, user focused software products. You will collaborate closely with development and infrastructure teams to build and maintain highly available, secure cloud environments. The culture emphasizes innovation, collaboration, and continuous growth, offering opportunities to work with cutting edge technologies and drive meaningful improvements in global IT services.

Mastercard is seeking a Senior Software Engineer to design, build, and optimize scalable, secure applications in a fast-paced environment. You'll lead end-to-end development of cloud-native services, collaborate with cross-functional teams, and champion engineering best practices. Responsibilities include system design, implementation, code reviews, testing, and production support. You'll mentor engineers, drive continuous improvement in performance and reliability, and explore new tools and frameworks. This role offers the opportunity to work with cutting-edge technologies while contributing to impactful, global software solutions.

Mastercard is seeking a Senior Software Engineer to build secure, scalable solutions for our Financial Services platforms within the IT department. You will design and implement complex, high-performance applications, lead technical decisions, and ensure best practices in code quality, testing, and security. Collaborating closely with product and engineering teams, you'll mentor developers and drive innovation. Join a culture that values creativity, collaboration, and continuous growth while working with cutting-edge technologies in a dynamic, inclusive environment.

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.

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.

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.

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.