Senior Software Engineer

Company: Mastercard

Location: Greater St. Louis

Type: Full-time

Posted: 2026-06-16

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
Senior Software Engineer


Overview
Customer Connectivity is a global Mastercard team that designs, builds and supports service platforms that provide cryptographic, key management and certificate management functions utilized by global Mastercard application teams. The Customer Connectivity team develops and supports shared security services to be leveraged across Enterprise by consuming application teams. Our inventory of shared services include cryptography, certificate management, code signing, and key management.


This Senior Software Engineer will be responsible for the component design, development and integration of digital security technologies and solutions to be leveraged by the enterprise. This position includes partnering with project managers for implementation of technical solutions, detailing costs and time estimates for initiatives, mentoring junior team members through all phases of the software development lifecycle, and ensuring compliance of audit requirements proactively.

  • Candidates must be able to obtain a deep technical understanding of the applications/systems that they are working on and must be willing to dig in and ask challenging questions to make sure that plans are executed efficiently.
  • Candidates should have a strong interest in Corporate Security.
  • Candidates must demonstrate strong technical leadership and ability to engage in out-of-the-box problem solving.
  • Candidate will be resp...

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