Principal Software Engineer

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 Overview We are seeking an experienced and motivated Principal Software Engineer to join Mastercard's AWS Platform Engineering Team. This role is critical in designing, building, and maintaining a scalable, secure, and highly available cloud platform on AWS. You will collaborate with cross-functional teams to ensure optimal platform performance, cost efficiency, and alignment with best practices. The ideal candidate is expected to have a strong understanding of AWS Platform & Services, Software Engineering, DevOps practices, and infrastructure automation and to focus on enabling application teams to deliver value rapidly and securely. The Role • Design, implement, and maintain a scalable multi-account AWS platform leveraging services such as AWS Organizations, VPC, IAM, EKS, EC2, S3, RDS, Glue, EMR, MSK, and more, with a strong focus on hands-on delivery and automation using AWS CDK (Cloud Development Kit). • Engage with and enhance the AWS platform and services throughout their lifecycle – from development, deployment, and operation, through to ongoing refinement – with direct, hands-on responsibility for delivery, including infrastructure as code using AWS CDK. • Take a hands-on leadership role in defining, designing, and delivering large-scale, cross-functional initiatives that drive significant, long-term business impact. • Drive architectural and technology decisions in alignment with Mastercard’s strategy, security standards, and scalability needs, with a strong emphasis on practical implementation and technical ownership. • Develop and present business cases, technical proposals, and actionable recommendations to senior leadership, supporting these with hands-on prototypes or proof-of-concept implementations where appropriate. • Define and maintain technology roadmaps that support departmental strategy and long-term business objectives, actively contributing to their implementation. • Provide hands-on technical leadership by conducting design and code reviews, resolving complex technical challenges, and actively contributing code and solutions. • Mentor and coach engineers, promote knowledge sharing, and foster a culture of innovation, learning, and technical excellence, including hands-on pairing and technical workshops. • Ensure compliance with audit, regulatory, and security requirements, and represent the team during compliance reviews, with hands-on involvement in implementing compliant solutions. All About You • 7+ years of experience in AWS cloud engineering or similar roles. • Hands-on experience with AWS services like Lambda, EKS, EC2, RDS, S3, Route 53, MSK, Glue, EMR, etc. • Proficiency in Infrastructure as Code tools (AWS CDK). • Strong knowledge of networking in AWS (VPC, Direct Connect, PrivateLink, Transit Gateway, etc.). • Experience with CI/CD tools like AWS CodePipeline, Jenkins, BitBucket/GitHub, Artifactory, Sonarqube, etc. • Strong understanding of Object-Oriented Programming (OOP) principles and experience applying them in languages like Python or Java. • Scripting skills in Python, Bash, or similar languages. • Strong knowledge of the best practices around Logging, Monitoring, and Alerting solutions. • Experience with software deployment and configuration automation. • Expertise in designing, analyzing, and troubleshooting large-scale systems. • Ability to debug, optimize code, and automate routine tasks. • Systematic problem-solving approach, with effec ... (truncated, view full listing at source)