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Sr. Engineer, Software Engineering; Speciality

Job in O'Fallon, St. Charles County, Missouri, 63366, USA
Listing for: My3Tech
Full Time position
Listed on 2026-07-01
Job specializations:
  • Software Development
    Senior Developer, Software Engineer
Job Description & How to Apply Below
Position: Sr. Engineer, Software Engineering (Speciality)

Senior Software Developer

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.

The Consumer Authentication Solutions team is looking for a Senior Software Developer to drive our customer experience strategy forward by consistently innovating and problem-solving. The ideal candidate is passionate about the customer experience journey, highly motivated, intellectually curious, analytical, and possesses an entrepreneurial mindset.

Role
  • Develop applications (UI and services) using Java/J2EE technologies.
  • Have excellent communication skills with strong Agile knowledge to be able to work with Business/Systems Analysts and Test Engineers.
  • Strong knowledge of Angular, SQL, RDBMS, Hibernate, Spring is a must to build a highly stable, resilient, and scalable product.
  • Partner with product and analysts to identify business opportunities, solve problems, and deliver solutions.
  • Work with continuous integration tools such as Jenkins to implement and keep CI/CD moving forward.
All About You
  • Experience in working on large production systems with high transaction volumes.
  • Excellent troubleshooting skills and be able to proactively work to prevent a problem.
  • Comfortable with UNIX/Linux command line interface.
  • Excellent knowledge of SQL and RDBMS concepts.
  • Excellent communication and documentation skills.
  • Experience working with code coverage and health reporting tools such as Sonar and Checkmarx.
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