Site Reliability Engineer II
Dynamic Yield
Site Reliability Engineer II
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.
About the Role
The Business Operations team is seeking a highly motivated and experienced Site Reliability Engineer II (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:
- Work independently on elements of projects/processes within the Site Reliability Engineering area by applying intermediate/practical knowledge and area best practices to meet organizational standards of quality and excellence.
- Support the implementation and maintenance of high-availability systems to ensure operational stability.
- Assist in evaluating operational needs and developing technical solutions under guidance.
- Contribute to automation and scripting projects to streamline routine operational tasks.
- Troubleshoot and resolve basic to moderate system issues, escalating more complex problems as needed.
- Document operational procedures and shares knowledge with team members.
- Participate in quality checks and reviews to ensure system stability and reliability.
- Utilize experience and a comprehensive understanding of area processes and tools to make minor adjustments or enhancements to resolve identifiable issues. May 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.
$96k - $163k
...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....SuggestedFull timePart timeFlexible hours- ...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...Suggested
- ...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...Suggested
- ...Manager, Site Reliability Engineering 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,...SuggestedFlexible 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
- ...Software Development Engineer II Location: O'Fallon, Missouri (1000 Technology) Duration: 12 Months Job Overview • Responsible for the analysis, design, development and delivery of software solutions. • Define requirements for new applications and customization...Work experience placement
- ...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
$96k - $163k
...Senior Platform Engineer Mastercard powers economies and empowers people in 200+ countries... ..., CI/CD, software automation, security, reliability engineering, and developer enablement.... ...roles; fitness reimbursement or on-site fitness facilities; eligibility for tuition...Full timePart timeWorldwideFlexible hours$152k - $258k
...Title and Summary Director, Platform Engineering Who is Mastercard?... ...infrastructure delivery, and improving reliability, consistency, and velocity across cloud... ...eligible roles; fitness reimbursement or on-site fitness facilities; eligibility for tuition...Full timePart timeWorldwideFlexible hours$110k
...Sr. Software Engineer O'Fallon, MO Onsite and f2f interview Salary-$110k with benefits. Open on w2, c2c and fulltime... ...Write unit and integration tests to ensure code quality and reliability. Participate in code reviews and provide constructive feedback...Full time- ...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
- About Us: At *** ( *** | Connected World, Connected Experiences ), we live the philosophy of connected world and connected experiences. We thrive on change that is powered by the intelligent symphony of technology and humans designing meaningful and sustainable experiences...Hourly payContract workFor contractors
- ...& DevOpsCloud-Native / AWS or Other Cloud PlatformsCI/CD and engineering tools like Jenkins, Maven, Gradle, Chef, and Sonar3. GenAI / AI... ...managers to deliver features that make the platform faster, more reliable, and more cost-efficient to run.Key ResponsibilitiesDevelop...Work experience placement3 days per week
- ...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....
- ...part of MC with a goal of becoming 20% of MC’s revenue over the next several years.Part of the CERA program and part of the software engineer guild as a participant.Development team for a component that interfaces with a 3rd party (TSYS) for near real time information to...For contractorsWork experience placementBank staffFlexible hours
- ...Fraud Management Application DeveloperWork with a talented team of developers and test engineers to develop fraud management applications. This position will be responsible for delivering Quality Engineering services (Code quality, Testing Services, Performance Engineering...
- ...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
- ...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...
- ...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
- 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...
- ...Duration: 12+ Months Job Description: Strong Java developer with very good understanding of micro services. Grasp of software engineering skills in modular design, data structures, algorithms. Deep knowledge and hands on experience with modern applications like...Work experience placement
- ...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....
- ...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
- ...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
- Operations & Technology Fraud Products Team Lead Be part of the Operations & Technology Fraud Products team developing new capabilities for MasterCard's Decision Management Platform, which serves as the core for multiple business solutions to combat fraud and validate...Local areaRemote workRelocation
- Digital Identity Technical Architect Overview: 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...
- DevOps EngineerO’Fallon MO (could consider remote possibly)Banking/financial Services Industry Candidates (this is for a Banking Platform)We are looking for a DevOps EngineerWork heavily on designing and creating Splunk (Splunk is a plus)Python is a plusExperience in any...Remote work
$115k - $184k
...Senior Software Engineer - JavaMastercard powers economies and empowers people in 200+ countries... ...application performance, scalability, reliability, observability, and security.Contribute... ...roles; fitness reimbursement or on-site fitness facilities; eligibility for tuition...Full timePart timeWorldwideFlexible hours3 days per week- ...Lead Software Development Engineer Location: O’Fallon, MO Duration: 24 months Interview process: First round phone, second round... ...skill set What will be your interview process? (Phone, skype, on site) Phone/Skype Do you have an upcoming OOO’s/meetings/PI...
- ...experience in delivering secure solutions in Financial Services Sector is preferred. • Advanced knowledge and understanding of Software Engineering Concepts and Methodologies is required. • Strong communication skills -- both verbal and written - and strong relationship,...Work experience placement
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


