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Lead Software Engineer



Software Engineering
Dublin, Ireland
Posted on Friday, May 24, 2024

Our Purpose

We work to connect and power an inclusive, digital economy that benefits everyone, everywhere by making transactions safe, simple, smart and accessible. Using secure data and networks, partnerships and passion, our innovations and solutions help individuals, financial institutions, governments and businesses realize their greatest potential. Our decency quotient, or DQ, drives our culture and everything we do inside and outside of our company. We cultivate a culture of inclusion for all employees that respects their individual strengths, views, and experiences. We believe that our differences enable us to be a better team – one that makes better decisions, drives innovation and delivers better business results.

Title and Summary

Lead Software Engineer

Mastercard is looking for brilliant, passionate and innovative Software Engineers to join our Blockchain & Digital Assets group at our Dublin Technology Hub. In this role, you will be a key member of a highly agile engineering team who are playing a critical role in building exciting and innovative products and at global scale.

Our team is built on a foundation of research and development, mining innovation internally, innovating new product lines with emerging technology, managing new products from inception to market validation and engaging strategically with startups to shape the future of commerce with and for our customers. This team will have a major focus on adopting Blockchain technology to bring innovative payment solutions to market. At Mastercard, you will help define the future of commerce globally.


This role involves working with a team of talented developers to develop high performance Java and Blockchain based solutions at scale.

• Collaborate with business and technical stakeholders for the analysis, design, and hands-on development of highly complex applications, interfaces and integrations

• Deliver secure extensible solutions which are optimised for scale, efficiency, performance and responsiveness

• Ensure adherence to security & quality standards, processes, and best practices and providing functional guidance, advice, and/or coaching/training to other developers

• Lead and guide team through all phases of the SDLC, including requirements, code, architecture & security reviews to ensure compliance with MasterCard standards

• Research, evaluation and selection of new tools, technologies and application frameworks

• Contribute to target Business, Data, Application and Technology solutions and road maps

• Create & maintain technical documentation, including architectural diagrams, design specifications, and API documentation to support seamless collaboration and knowledge sharing within the team


• Advanced knowledge and understanding of modern software engineering architectures, concepts and methodologies

• Proficiency with Java (JDK 8 or greater) and Spring Framework components

• Proficiency in data model design, sql optimisation and database management

• Excellent problem-solving and analytical skills, with the ability to address complex technical challenges

• Excellent understanding of security best practices, compliance standards, non functional requirements, quality of service and service level agreements

• Experience with cloud native environments and container orchestration solutions

• Experience with UI frameworks such as React/Angular

• Knowledge of CI/CD principles and tools such as Jenkins, Gradle, Maven.

• Knowledge of Source Control Management and working with code in a multi-developer environment

• Familiarity on cryptographic primitives, concepts, protocols, and blockchain technologies (Bitcoin, Ethereum, Smart Contracts, Solidity), applied cryptography and layer-2 networks

All About You

The ideal candidate for this position should:

• Have fluent English, excellent communication (verbal and written) and collaboration skills

• Love leading and delivering innovative, high quality, scaleable solutions in a collaborative fun environment

• Passionate about software development and comfortable in a fluid environment

• Passionate about code quality and coding best practices

• Show initiative and demonstrate a willingness to take on challenging opportunities

• Must be driven, highly motivated and a strong team-player

• Interested in mentoring and helping grow the skills of the next generation of software developers

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.