Senior Software Engineer

Senior Software EngineerMastercard 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.Overview:Mastercard's Corporate Solutions organization is seeking a Senior Software Engineer with strong expertise in Java, Spring Boot, microservices, and AI-assisted software development to help build and evolve a global business-to-business (B2B) technology platform. Our platform helps businesses of all sizes streamline how they manage payments when buying and selling products and services. As part of the engineering team, you will design and develop secure, scalable services that support critical B2B payment experiences while applying modern engineering practices and emerging AI capabilities across the software development lifecycle. You will work from Mastercard's technology hub in a collaborative, Agile environment alongside talented engineers, product managers, technical program managers, and test engineers. You will play an important role in helping Mastercard transform the B2B payments space by standardizing, automating, and optimizing payment experiences for buyers and sellers around the world. This is a hybrid role based in Arlington, VA, requiring three days per week onsite.Role:Design, develop, and evolve secure, scalable Java/Spring Boot microservices and APIs supporting Mastercard's global B2B platform.Translate business and product requirements into reliable, maintainable technical solutions, contributing to system architecture and technical design.Build and integrate services across Angular applications, databases, internal platforms, and third-party systems, including efficient SQL and database solutions for high-volume workloads.Apply AI-assisted development tools to accelerate coding, testing, debugging, documentation, code reviews, and software quality improvements, with appropriate human oversight.Develop solutions that meet Mastercard standards for security, performance, scalability, reliability, and operational excellence, applying enterprise security patterns such as authentication, authorization, encryption, and secrets management.Apply 12-factor application principles, cloud-native practices, and Mastercard engineering governance throughout the development lifecycle.Participate in code reviews, Pull Requests, retrospectives, and technical discussions, contributing to high-quality engineering practices and continuous improvement.Collaborate with Software Engineers, Test Engineers, Product Managers, Technical Program Managers, and other stakeholders to deliver customer-focused solutions.Troubleshoot complex production and performance issues, improve system reliability, and mentor engineers by sharing technical knowledge and best practices.All About You:Extensive experience designing and developing Java applications, Spring Boot services, RESTful APIs, and microservices in enterprise environments.Strong understanding of microservice architecture, distributed systems, API design, and cloud-native development practices.Experience using AI-assisted development tools to improve productivity and software quality across coding, refactoring, testing, debugging, documentation, and delivery.Practical experience applying AI-assisted capabilities to code reviews, security and vulnerability analysis, dependency management, and automated testing, with sound engineering judgment and human review for production changes.Strong SQL and database development skills with technologies such as PostgreSQL or Oracle, including experience designing and optimizing solutions for high-volume transactional systems.Strong knowledge of enterprise application security, including OAuth, mutual TLS, authorization, payload encryption, secrets management, and secure coding practices.Experience diagnosing and improving application performance, scalability, reliability, and resiliency in production environments.Understanding of software engineering best practices including automated testing, CI/CD, Git-based development, code reviews, observability, and operational readiness.Ability to translate complex product and business requirements into secure, testable, maintainable, and supportable technical solutions.Demonstrated ability to operate effectively in an Agile engineering environment, contributing to continuous improvement and collaborative technical decision-making.Ability to work independently, manage competing priorities, and make thoughtful technical decisions with minimal supervision.Passion for delivering high-quality software and continuously improving engineering practices, products, and customer experiences.Strong communication and collaboration skills, with the ability to explain technical concepts and influence decisions across technical and non-technical audiences.Bachelor's degree in Computer Science, Engineering, Information Systems, or equivalent practical experience.Preferred Qualifications:Experience in the commercial card, B2B payments, payments technology, or corporate banking space.Experience integrating enterprise applications with third-party platforms and external APIs.Experience working with cloud platforms and modern observability, deployment, and platform engineering practices.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 click.appcast.io 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, andComplete all periodic mandatory security trainings in accordance with Mastercard's guidelines.Pay Ranges:Arlington, Virginia: $132,000 - $212,000 USD