Sr Principal Software Engineer

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Apply locations Dublin, Ireland | time type Full time | posted on Posted Today | time left to apply End Date: May 25, 2025 (28 days left to apply) | job requisition id R-244345

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.

Overview:

Architecture & Technology (A&T) is a team of specialists and senior engineers who collaborate across Mastercard's programs and teams. We focus on reviewing, teaching, establishing policies, and assisting teams in solving complex problems. Our expertise includes security, design for operability and customer experience, privacy, and regulatory compliance. We maintain open contribution documents on engineering principles, development lifecycle, cloud policies, and more. Additionally, we develop and curate code libraries to accelerate engineering efforts and reduce repetitive work.

The Role:

As an A&T Sr Principal Software Engineer, you will engage with Mastercard engineering teams and contribute to A&T deliverables such as patterns, frameworks, proof-of-concepts, standards updates, and shared libraries. You may lead projects, provide technical guidance, mentor engineers, review code, and participate in organizational initiatives. Your work spans the entire technology stack and includes activities like leading technical due diligence, modernization efforts, and detailed platform service work.

Your responsibilities include:

1. Leading enterprise-wide initiatives and resolving complex problems.
2. Architecting new services and products in collaboration with business teams.
3. Driving improvements in software craftsmanship and engineering standards.
4. Designing architecture, including service interactions and policies.
5. Enhancing customer experience for services and applications.
6. Optimizing cost and performance strategies.
7. Balancing trade-offs with informed judgment.
8. Taking on cross-functional assignments and speaking engagements.
9. Collaborating across teams for synergy and reuse.
10. Recommending promotions based on achievements.
11. Conducting technical interviews and raising team standards.
12. Mentoring engineers and leads to improve productivity and compliance.
13. Engaging with external communities for knowledge sharing.
14. Leading architecture meetings and enterprise challenge resolutions.
15. Mentoring Principal Engineers and facilitating community discussions.

Ideal candidates will have:

• Experience leading large, global projects from architecture to operation.
• Thought leadership and influence across functions.
• Proven design and development skills in multiple languages and security standards.
• Knowledge of operating systems internals.
• Ability to develop and promote reference architectures and engineering principles.
• Expertise in API standards, full-stack development, and service ownership.
• Experience in software planning, estimation, and trade-off discussions.
• Automation, DevOps, and performance engineering skills.
• Cost analysis and cloud architecture experience.
• Ability to communicate complex architectures to stakeholders.

All activities involving Mastercard assets, information, and networks entail inherent risks. Employees must:

• Follow Mastercard's security policies.
• Ensure confidentiality and integrity of accessed information.
• Report security violations or breaches.
• Complete mandatory security trainings.

Everyone wants easier ways to pay; we invent them.

Checkout lines are slow; we speed them along.

Merchants want more sales; we give them data and insights.

People need financial access; we connect them.

Corporate purchasing is complicated; we make it simple.

Commuters are busy; we speed them on their way.

We help create them.

Small businesses are virtual; we give them access to a world of buyers.