Yaser Tirsen is a Senior Software Engineer based in Greater Dublin with a strong fintech and fraud-intelligence focus, combining practical experience in Open Banking, payment authentication, and regulatory compliance. He has modernized legacy systems and led migrations to cloud-native microservices while improving fraud detection through data-driven model enrichment and scalable Kafka-backed architectures. At Mastercard he drove incident response, mentoring, and developer-experience improvements, and at Lean Technologies he built a full Open Banking sandbox and reverse-engineered bank APIs to support robust integrations. Comfortable in Java and Spring, he applies secure backend practices to sensitive payment flows and has hands-on experience with authentication and authorization standards. His background in Arabic–English interpretation and a First Class Honours degree in Business Computing hint at strong communication skills and an ability to bridge technical and regulatory domains.
1 year of coding experience
4 years of employment as a software developer
Bachelor of Science - Business Computing, First Class Honours, Bachelor of Science - Business Computing, First Class Honours at Technological University Dublin
Leaving Certificate, Leaving Certificate at Coolmine Community School
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Yaser Tirsen - Senior Software Engineer at Mastercard