Senior Software Engineer - API Platform
Overview
Mastercard Developers ( is the single gateway for Mastercard partners to access a diverse range of payment, data, loyalty, and security APIs. The team is responsible for delivering an experience that ensures developers can quickly find the right API, assess its technical capabilities and integrate it into new and innovative solutions. We are looking for versatile and customer obsessed engineers to join our team. You will play a key role in designing and developing next generation digital products and services in Mastercard for a global audience.
Responsibilities
- Design and develop technical solutions for global customers (internal and external)
- Continually ideate, scope, develop, deliver, test and iterate features for the constantly evolving and growing API Platform.
- Contribute to Mastercard Open Source projects that offer API Client signing and encryption libraries.
- Ensure appropriate levels of automation are adopted (build, deploy, configure, validate, monitor).
- Liaise with other global technology, data, operations teams to execute.
- Act as subject matter expert for API Platform and services to support customer integrations.
All About You
- Strong Java/Kotlin and
- oriented design and development skills. - Proven track record in web application development with multiple examples of solutions deployed where you were a key architect and coder.
- You care about the technical architecture and design - ensuring that the solution is flexibly designed, performs efficiently and highly scalable.
- Experienced working in an Agile environment with a global team that supports frequent production releases.
- Experience in designing and delivering APIs and security models an advantage.
- You strive to create highly intuitive and responsive products.
- Frontend development experience is a bonus.
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.
Seniority level
- Mid-Senior level
Employment type
- Full-time
Job function
- Engineering and Information Technology
Industries
- Financial Services, IT Services and IT Consulting, and Technology, Information and Internet
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Empresa: Mastercard Localização: Lisboa
Lisboa, Lisboa, PortugalPublicado: 8. 10. 2025
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