Senior Software Engineer – Integrations & API Connectivity
Mastercard
Mastercard
Join Mastercard, a global leader powering an inclusive digital economy across 200+ countries. This role is within our Open Finance Europe – Connectivity team, focused on building and managing scalable API integrations with financial institutions. You'll be a key contributor, designing, developing, and operating secure, reliable backend services that handle complex engineering challenges and deliver high-quality solutions at scale.
Design, develop, test, and support robust APIs and backend services. Contribute significantly to system design decisions, emphasizing scalability, resilience, and performance. Deliver production-ready code throughout the software development lifecycle, ensuring system stability by troubleshooting and resolving production issues. Uphold best practices through code reviews and implement comprehensive testing strategies. Collaborate effectively with Product, Architecture, Security, and SRE teams, while enhancing observability, automation, and operational efficiency.
We seek a Senior Software Engineer with 3-5 years of professional experience in building cloud-based, distributed backend systems. Essential skills include strong API development expertise, a solid understanding of scalability, and proven production support capabilities. You should possess a pragmatic approach to solving complex technical problems, a strong grasp of the SDLC, testing practices, and secure coding principles. The ability to independently own and deliver components/services, coupled with excellent collaboration and communication skills, is crucial.
MasterCard
Financial Services