Sr Tester/Data 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
Sr Tester/Data Engineer
Overview
The AI Innovation at Scale team is seeking a highly motivated and detail-oriented Quality Assurance Engineer to join our team. This role is critical in ensuring the delivery of high-quality products by assessing requirements, identifying issues, and implementing effective testing strategies. The ideal candidate is curious, detail-oriented, technically skilled, and thrives in a collaborative environment. You will play a key role in improving quality management and continuous improvement.
Role
In this position, you will:
Review and provide feedback on requirements and technical documentation.
Plan, design, and implement comprehensive test strategies and test cases.
Execute white-box and black-box testing to identify product deficiencies.
Collaborate closely with team members to resolve issues and improve quality.
Monitor QA processes and identify bottlenecks for improvement.
Investigate quality issues and propose actionable solutions.
Collect and analyze data to support quality improvements.
Prepare quality reports for the team.
Participate in requirement analysis and engineering solution discussions.
All About You
The ideal candidate for this position should:
Be curious, meticulous and eager to learn new technologies and methodologies.
Possess strong technical skills relevant to QA work.
Demonstrate critical and creative thinking in problem-solving.
Have excellent time management and organizational skills.
Communicate effectively with stakeholders.
Desirable capabilities:
Experience in software development and software QA.
Proficiency in QA methodologies, processes, and tools.
Ability to write clear, concise, and comprehensive test plans and cases.
Familiarity with appropriate testing tools and frameworks.
Familiarity with various environments such as Hadoop, CDP, PCF, and Databricks.
Basic knowledge of data science and Generative AI concepts.
Proficient with Unix/Linux commands.
Working knowledge of Python and Java applications.
Use Impala and Spark for data queries and validation.
Monitor Spark job execution, perform initial analysis, and collect logs.
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.