# Software Engineer II **Company**: Mastercard **Location**: Arlington, Virginia **Work arrangement**: hybrid **Experience**: senior **Job type**: full-time **Salary**: $106,000 - $169,000 USD **Category**: Engineering **Industry**: Finance **Apply**: https://mastercard.wd1.myworkdayjobs.com/en-US/CorporateCareers/job/Arlington-Virginia/Software-Engineer-II_R-288574?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply **Canonical**: https://yubhub.co/jobs/job_caebfbfb-5e1 ## Description Mastercard's Business Experimentation and Optimization (BE&O) teams within the Services organization is seeking a technically strong Software Engineer II to help design, build, and evolve a next-generation experimentation platform that enables organizations around the world to make smarter, data-driven decisions. In this role, you will contribute across the full software development lifecycle, from architecture and system design through implementation, testing, and continuous improvement. You will build scalable, cloud-native applications, APIs, and data-processing capabilities using technologies such as Java, Spring Boot, TypeScript, React, Databricks, and Spark, with cloud platforms including AWS and Azure. The Business Experimentation and Optimization (BE&O) is building industry-leading software that empowers business users around the world to make data-driven decisions through advanced analytics and experimentation. As we expand our product offerings and modernize our technology stack, we are reimagining how we deliver scalable, cloud-native solutions to our clients. Responsibilities: - Design, develop, and maintain scalable full-stack applications across frontend, backend, API, and data-processing layers using technologies such as Java/Spring Boot, TypeScript, and React. - Build and enhance scalable services and APIs that support experimentation, analytics, and data-driven decision-making. - Develop and optimize data-intensive applications using Databricks, Spark, and related technologies to process, transform, and serve large-scale datasets efficiently. - Contribute to architecture and system design, evaluating technical tradeoffs and helping deliver solutions that are scalable, reliable, secure, and maintainable. - Build innovative software products that help global businesses generate insights, test ideas, and make better decisions through experimentation. - Translate business and product requirements into well-designed technical solutions in partnership with Product, Data Engineering, QA, and other stakeholders. - Write clean, maintainable, and efficient code while applying strong engineering practices across development, testing, code reviews, and deployment. - Identify and resolve performance, scalability, and reliability challenges across applications, APIs, services, and data-processing workloads. - Participate in the full development lifecycle, from technical discovery and design through implementation, testing, production support, and continuous improvement. - Contribute to a culture of engineering excellence by sharing knowledge, supporting teammates, and helping improve development practices and developer productivity. - Stay current with emerging technologies and engineering practices, identifying opportunities to improve the platform’s capabilities, scalability, and overall quality. Requirements: - Experience as a Software Engineer building and supporting full-stack applications in a modern software development environment. - Hands-on experience with Java and Spring Boot, including developing backend services, APIs, and application components. - Experience with modern frontend technologies such as TypeScript and React. - Experience or familiarity with Databricks, Apache Spark, or PySpark, particularly for data processing, analytics, or data-intensive applications, is highly desirable. - Strong foundation in object-oriented programming, API development, software design, and engineering best practices. - Understanding of scalable and distributed systems, including considerations around performance, reliability, maintainability, and efficient data processing. - Ability to work across the application, service, and data layers, understanding how different components come together to deliver end-to-end solutions. - Strong analytical and problem-solving skills, with the ability to break down complex technical challenges, evaluate tradeoffs, and develop effective solutions. - Demonstrated ability to write clean, maintainable, testable code and contribute effectively to code reviews and quality-focused development practices. - Strong communication and collaboration skills, with the ability to work effectively with Product, Data Engineering, QA, and other technical and business stakeholders. - Curious and adaptable, with a growth mindset and willingness to learn new technologies, explore unfamiliar problems, and take on increasing levels of responsibility. - Bachelor’s degree in Computer Science, Engineering, Information Systems, or a related STEM discipline, or equivalent practical experience. Benefits: - 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 ## Skills ### Required - Java - Spring Boot - TypeScript - React - Databricks - Spark - object-oriented programming - API development - software design ### Nice to have - Apache Spark - PySpark --- Source: [Apply at mastercard.wd1.myworkdayjobs.com](https://mastercard.wd1.myworkdayjobs.com/en-US/CorporateCareers/job/Arlington-Virginia/Software-Engineer-II_R-288574?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply)