Mastercard is a global technology leader, driving an inclusive digital economy with secure and seamless transactions across over 210 countries. This Senior Software Engineer role is integral to the Open Finance Europe – Connectivity team, focusing on building and maintaining robust API integrations with European financial institutions.

You will be a crucial hands-on contributor, responsible for the end-to-end lifecycle of secure, reliable, and scalable backend services. This position offers the opportunity to tackle complex engineering challenges, influence system design decisions, and deliver high-quality solutions designed for production environments.

Key responsibilities include designing, developing, testing, and supporting scalable APIs and backend services. You will actively contribute to system design, prioritizing scalability, resilience, and performance.

This role involves delivering production-ready code throughout the software development lifecycle, troubleshooting and resolving production issues to ensure system stability, and participating in code reviews to uphold engineering best practices.

Further duties encompass implementing comprehensive testing strategies, collaborating effectively with cross-functional teams (Product, Architecture, Security, SRE), and enhancing service observability, automation, and operational efficiency.

We are seeking a Senior Software Engineer with 5-8 years of professional experience in building cloud-based, distributed backend systems. A strong foundation in API development, scalability, and production support is essential.

Candidates should demonstrate expertise in solving complex technical problems with a structured and pragmatic approach. A solid understanding of the Software Development Life Cycle (SDLC), effective testing practices, and secure coding principles is required.

Proven ability to independently own and deliver software components or services is key. Excellent collaboration and communication skills are also necessary for this role.