Marcel Grenier
Senior Software Engineer II (Financial) at Nordstrom
Littleton, Colorado, United States
Summary
👤
Senior🎓
Top SchoolMarcel Grenier is a Senior Software Engineer II specializing in financial systems with over 25 years of hands-on experience delivering secure, compliant, and cost-efficient solutions. At Nordstrom he architected a mainframe-alternative and automated PCI/SOC compliance pipelines that together saved the company millions annually, while earlier roles drove availability to 99.999% and eliminated thousands of development hours through automation. He blends deep legacy/mainframe knowledge with modern cloud CI/CD, data modeling, and reporting expertise to simplify complex financial processes and audit requirements. Known for crisis-driven performance improvements—like an 87% data-warehouse load-time reduction as a former CTO—he excels at turning high-risk problems into repeatable, auditable systems. Based in Littleton, Colorado, Marcel pairs a pragmatic engineering approach with a strong focus on developer productivity and operational resilience.
10 years of coding experience
13 years of employment as a software developer
Rockville High SchoolEastern Connecticut State University
Github Skills (10)
mod-rewrite5
jsonp3
rewrite3
java2
jetty2
lucee2
servlet2
crystal-lang2
filter2
apache1
Programming languages (1)
Github contributions (5)
mrgrenier/guitar_music
Feb 2018 - Jun 2022
Contributions:22 commits, 28 pushes, 1 branch in 4 years 5 months
mrgrenier/starter-web
Jun 2018 - Dec 2020
Simple starting point website project based upon Initializr
Contributions:2 pushes in 2 years 6 months
initializrstarting-pointjavascriptpointproject-website
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