Lead Software Engineer

mastercard· Ireland: Mastercard Ireland Limited
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📍 Dublin, IrelandFull time
Full timeIreland: Mastercard Ireland Limited

About this role

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

Lead Software Engineer

Who is Mastercard?

Mastercard is a global technology company in the payments industry. Our mission is 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. With connections across more than 210 countries and territories, we are building a sustainable world that unlocks priceless possibilities for all.

Overview

Be part of the Decision Management Program, which creates services for multiple business solutions to combat fraud and validate cardholder identity in real-time. Our patented platform processes billions of transactions per month, in milliseconds, using a multi-tiered, message-oriented approach for high performance and availability. Additionally, web applications and web services for managing fraud solutions round out the critical platform capabilities.

Role

This Lead Performance role will be responsible for the performance and availability engineering for the platform, along with helping to build an engineering practice that empathizes doing performance engineering work earlier in the delivery lifecycle.

This role will partner with solution architects, software engineers, and other team roles to assess the platform’s needs, help design new capabilities, design and run tests, help troubleshoot problems, identify risks, and make recommendations. A successful candidate will ensure potential performance and availability challenges are proactively identified, recommendations implemented, and that the systems’ capacity and availability exceed requirements while ensuring the platform achieves business results.

All About You

The ideal candidate for this position should possess intermediate to advanced knowledge and experience in the following areas:
• Application architecture
• High performance and highly scalable transaction processing systems
• Passionate about solving complex performance and availability problems
• A wide breadth and depth of technical experience including Java and GRPC
• Performance tools such as LoadRunner, JMeter, Gatling, Dynatrace, software profilers, Splunk, etc.
• Experience with Linux,Oracle/PostgreSQL,Kafka,Kubernetes and AWS
• Deep understanding of JVM internals,Garbage Collection,Threading models and Memory management
• Capacity modeling/planning processes and tools
• Strong verbal and written communication skills with the ability to communicate to an audience at all levels within an organization.

Education: Bachelor’s Degree in Computer Science, Engineering, or related technical field.

Corporate Security Responsibility

Every person working for, or on behalf of, Mastercard is responsible for information security. All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and therefore, it is expected that the successful candidate for this position 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.

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.




Frequently Asked Questions

Is the salary disclosed for the Lead Software Engineer position at mastercard?
The salary for this Lead Software Engineer role at mastercard is not publicly listed. Click "Apply Now" to learn more about the compensation package on their official careers page.
Where is the Lead Software Engineer position at mastercard located?
This Lead Software Engineer role at mastercard is based in Dublin, Ireland. The position is listed as on-site or hybrid. Check the full job description or apply directly to confirm the work arrangement.
Is the Lead Software Engineer role at mastercard full-time or part-time?
This is listed as a Full time position. It is posted as a Lead Software Engineer role in the Ireland: Mastercard Ireland Limited department at mastercard.
Which team or department does the Lead Software Engineer at mastercard belong to?
This Lead Software Engineer position is part of the Ireland: Mastercard Ireland Limited department at mastercard. See the full job description for more information about the team structure and responsibilities.
How do I apply for the Lead Software Engineer position at mastercard?
Click the "Apply Now" button on this page. You will be redirected to mastercard's official application portal hosted on workday where you can submit your application directly.
When was the Lead Software Engineer job at mastercard posted?
This Lead Software Engineer position at mastercard was posted on Aug 27, 2026. Apply as soon as possible — early applications are often reviewed first.
Lead Software Engineer
mastercard
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