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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Software Engineer - **Company:** Mastercard - **Location:** Arlington, VA, United States - **Experience:** Expert - **Salary:** $132,000.0 - $212,000.0 - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Application Programming Interfaces (APIs), Artificial Intelligence, Application Performance Management, Automation of Tests, Cloud Computing, Software Quality, Code Review, Cyber Security, Information Systems, Databases, Continuous Integration, Database Development, Software Debugging, Distributed Systems, Key Management, PostgreSQL, OAuth, Oracle (Applications), Standard Sql, Scaled Agile Framework, Secure Coding, Software Construction, SQL Databases, Systems Architecture, Java Application Server, Enterprise Software Applications, Spring-boot, Reliability of Systems, Git, AngularJS, Information Technology, Api Design, Restful APIs, Code Restructuring, Vulnerability Analysis, Web Api, Microservices - **Published:** September 10, 2026 - **Apply:** https://www.techcareers.com/job.asp?id=3385150007&tx=KR8181FFQ&pt=1&aff=0B19D771-A501-4A5E-8338-2A822B784D54&utm_source=Job%20Feed&utm_medium=textkernel&utm_campaign=DE&utm_term=0B19D771-A501-4A5E-8338-2A822B784D54 ## About the Role * 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., * 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. ## Description * 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 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. ## Related Videos - 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