• Sr BizOps Engineer

    Mastercard (O'Fallon, MO)
    …as needed. * Must have hands on experience with software installation and configuration on Unix (preferably AIX ) * Must be able to take backup of components like ... governments realize their greatest potential._ **Title and Summary** Sr BizOps Engineer Job Overview: Leads Reactive Systems Architecture projects and creates the… more
    Mastercard (08/29/25)
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  • Lead Software Engineer

    Mastercard (O'Fallon, MO)
    …experience or relevant qualifications * Working knowledge and technical security experience with UNIX , Linux, FreeBSD, AIX , or Windows. * Hand-on experience in ... realize their greatest potential._ **Title and Summary** Lead Software Engineer Overview * The Cryptographic Security Team is a...Shell Scripting ( Unix /Windows) * Proficient in any of the following programming… more
    Mastercard (09/14/25)
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  • Lead Site Reliability Engineer

    Enterprise Mobility (St. Louis, MO)
    …business to grow through the implementation of new capabilities. The ** Engineer 3, Systems** is responsible for ensuring the availability, performance, efficiency, ... software engineering mindset to system administration topics, and vice versa. As an ** Engineer ** **3, Systems** you will be expected to use your technical knowledge… more
    Enterprise Mobility (08/30/25)
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  • Senior Information Security Engineer

    Mastercard (O'Fallon, MO)
    …experience or relevant qualifications * Working knowledge and technical security experience with UNIX , Linux, Solaris, or AIX * Demonstrate the ability to ... realize their greatest potential._ **Title and Summary** Senior Information Security Engineer Overview Mastercard is seeking candidates to join our Security… more
    Mastercard (09/24/25)
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  • Software Quality Assurance Testers

    Guidehouse (Kansas City, MO)
    …activities. + This role typically reports to a supervisor or senior engineer and works under close guidance while building proficiency in enterprise testing ... documentation updates. This role typically reports to a supervisor or senior engineer and works under close direction while gaining proficiency in enterprise testing… more
    Guidehouse (09/28/25)
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  • Journeyman Software Quality Assurance Tester

    Guidehouse (Kansas City, MO)
    …documentation updates. This role typically reports to a supervisor or senior engineer and works under close direction while gaining proficiency in enterprise testing ... development methodologies. + Exposure to enterprise platforms including Windows, Linux, UNIX , and mainframe systems. + Experience working with relational databases… more
    Guidehouse (09/28/25)
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