Senior Full-Stack Engineer - Java & React job opportunity at MasterCard.

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DatePosted 8 Days Ago bot
MasterCard Senior Full-Stack Engineer - Java & React
Experience: 5-years
Pattern: full-time
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loacation Gdansk, Poland (Aiia), Poland
loacation Gdansk, Poland..........Poland

Our Purpose Mastercard 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. Title and Summary Senior Full-Stack Engineer - Java & React Our Purpose Mastercard 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 payment choices, making transactions secure, simple, smart, and accessible. Our technology, innovation, partnerships, and networks enable products and services that help people, businesses, and governments realize their greatest potential. Senior Full‑Stack Engineer – Open Finance Overview As a Senior Full‑Stack Engineer, you will design, build, and deliver cutting‑edge Open Finance solutions that power Mastercard’s next generation of payment and data products. You’ll work across the entire technology stack—from highly available backend services built in Java to engaging front‑end experiences using React—partnering closely with designers, product managers, and architects to bring ideas to life. You will contribute to Connect, the frontend component of our Open Banking Payment and Data applications, helping to drive innovative solutions in pursuit of a world beyond cash. This role requires strong backend engineering expertise (Java), robust frontend development skills (React), and the ability to collaborate across disciplines to deliver secure, scalable, and accessible software aligned to Mastercard’s highest standards. Responsibilities Plan, design, and develop full‑stack solutions that align with Mastercard’s engineering standards, processes, and best practices. Build and maintain scalable backend services and APIs within Mastercard’s Open Finance ecosystem using Java. Collaborate with UI/UX designers to implement responsive, accessible user interfaces using React. Ensure that front‑end applications meet WCAG accessibility guidelines, deliver exceptional performance, and are optimised for multiple devices. Ensure high code quality through unit/integration testing, peer reviews, and CI/CD pipelines. Contribute across the full software development life cycle—from requirements gathering to release and ongoing support. Troubleshoot, debug, and resolve production issues, ensuring service resilience and performance. Mentor and support junior engineers, fostering knowledge sharing and continuous improvement. Partner with product owners and stakeholders to prioritise features, communicate progress, and manage technical trade‑offs. Stay current with emerging technologies, frameworks, and best practices across frontend and backend engineering. All About You 5+ years of software engineering experience across backend and frontend development. Strong hands‑on experience with Java, plus proficiency in React. Experience with .NET is welcome but not required. Solid experience building RESTful APIs, microservices, and working in cloud environments (AWS, GCP, or Azure). Strong understanding of UI/UX principles, responsive design, and accessibility standards. Demonstrated experience collaborating with designers and product teams to deliver user‑centric products. Knowledge of modern engineering practices: CI/CD, automated testing, code reviews, Agile/Scrum. Excellent communication and stakeholder‑management skills, with the ability to translate between technical and business needs. Proactive, detail‑oriented, accountable, and comfortable working independently in a fast‑paced environment. Bonus: Experience in Open Finance, payments, or regulated financial services. Corporate Security Responsibility All activities involving access to Mastercard assets, information, and networks come with inherent risk. 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. Complete all mandatory security training as required by Mastercard guidelines. Equal Opportunity Statement Mastercard is an inclusive equal opportunity employer that considers applicants without regard to gender, gender identity, sexual orientation, race, ethnicity, disability, veteran status, or any other characteristic protected by law. 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, and Complete all periodic mandatory security trainings in accordance with Mastercard’s guidelines.

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