Mario Leone
Lead Software Engineer at Capital One
Herndon, Virginia, United States
Summary
👤
Senior🎓
Top SchoolMario Leone is a Lead Software Engineer with a decade of experience driving large-scale modernization and secure, serverless-first architectures for consumer-facing financial products at Capital One. He currently leads development of CreditWise’s core account management and enrollment systems, combining hands-on backend engineering with CI/CD and microservices design. His background spans migrations from monoliths to event-driven microservices, resilient serverless systems using AWS Lambdas/Step Functions, and real-time alert platforms, with a strong emphasis on cybersecurity and enterprise standards. Passionate about software craftsmanship and engineer growth, he champions self-management and balanced team environments while coaching teams through complex technical transitions. Based in Herndon, VA, he pairs a Penn State computer engineering degree with practical experience across cloud, Spark, Spring Boot, and infrastructure-as-code.
10 years of coding experience
3 years of employment as a software developer
Bachelor of Science (B.S.) Computer Engineering, Bachelor of Science (B.S.) Computer Engineering at Penn State UniversityHigh School Diploma, High School Diploma at Belle Vernon Area High School
English
Github Skills (7)
react5
nodejs5
discord3
discord-js3
discord-bot3
youtube2
youtube-channels2
Programming languages (6)
Github contributions (5)
mleone10/expense-system
Oct 2021 - Jan 2023
Expense reimbursement approval system.
Contributions:133 commits, 35 PRs, 123 pushes in 1 year 3 months
reactreimbursementexpenseapprovalnodejs
mleone10/blog
Dec 2019 - Jun 2023
Personal blog and portfolio website
Contributions:4 PRs, 85 pushes, 5 branches in 3 years 6 months
reactnextjs
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