Principal Software Engineer
MastercardDublin, Ireland (Mountain View)Posted 22 March 2026
Job Description
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 Principal Software Engineer Job Description Summary Are you passionate about applying your Software Development expertise to real-world applications that leverage big data to unlock business insights? Do you have experience leading the end-to-end design of complex applications and data pipelines using the latest technologies? Are you excited to work on products which provide value to thousands of Mastercard’s clients, and produce over one billion media impressions annually? As a Principal Engineer on the Enterprise and Credit Risk Program you will architect and implement applications, APIs, and data products which unleash the power of Mastercard Data to deliver insights to a broad array of customers. You will lead our technology approach to emerging challenges including scaled data pipelines, near real-time processing, and ever-changing regulatory requirements. This is a Director-level Individual Contributor role reporting directly to the Enterprise and Credit Risk Program’s technology Vice President. Candidates should have a track record of identifying thoughtful, robust solutions to the most challenging technical problems, the ability to apply strong business acumen to technology challenges, and experience presenting to and influencing senior stakeholders across organizational boundaries. Role • Lead the definition, development, and delivery of major cross-department initiatives with broad scope and long-term business implications for major clients. • Operate with technical agility across all aspects of the stack and development process for both existing and new products. • Implement solutions with an emphasis on high quality, scalable, and extensible development best practices. • Champion top-quality outputs, keep pace with industry standards, and apply to the team’s development practices. • Coach and mentor individuals at all experiences levels directly and through creation of knowledge sharing best practices. • Advice senior management on technical tradeoffs and feasibility. Explore solutions through research and by performing PoCs to assess and identify solutions to the technology needs of the organization. • Partner with business owners to understand commercial opportunities and evaluate technical designs for cost, ROI, risks, benefits, and constraints. • Work with technical partners across the organization to prioritize and develop solutions which will scale and support the organization’s ambitious forward-looking objectives. • Lead firm-wide engineering initiatives by engaging and mentoring Engineers at all levels to improve the craftmanship of Software Engineering. • Ensure compliance of audit requirements by proactively educating team on Compliance Requirements and Integrating Compliance Requirements in SDLC. Represent team during Compliance Audits. • Represent senior leadership as Technical “voice in the room” in various meetings, many of which are with senior stakeholders. All about you / Ideal Candidate Qualifications • Demonstrated expertise and deep technical foundations in Java or C# .Net application development frameworks. • Expertise in one or more enterprise database solutions (e.g. SQL Server, Oracle, MySQL, Impala, Spark). • Expertise leading development of RESTful API services including design patterns and scalability. • Proficiency in using Python or Scala, Spark, Hadoop platforms & tools (Hive, Impala, Oozie, Airflow, NiFi, Scoop), SQL to build Big Data products & platform. • Experience ... (truncated, view full listing at source)
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