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Senior Distributed Systems Engineer & Tech Lead
Job in
O'Fallon, St. Charles County, Missouri, 63366, USA
Listed on 2026-07-25
Listing for:
Mastercard
Full Time
position Listed on 2026-07-25
Job specializations:
-
Software Development
Senior Developer, Software Architect
Job Description & How to Apply Below
Mastercard is seeking a Senior Software Development Engineer in O’Fallon, Missouri to design, build, and support highly scalable distributed systems. This senior IC role combines deep technical expertise with mentorship and ownership of critical components from design through production support.
You will lead architectural decisions, implement modular high-performance applications, and drive testing, security, and observability best practices across teams.
#J-18808-LjbffrPosition Requirements
10+ Years
work experience
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