Marlon Ferreira
Senior Software Engineer at CWI Software
Paraná, Brazil
Summary
👤
Senior🎓
Top SchoolMarlon Ferreira is a Senior Software Engineer with over 17 years of experience modernizing and maintaining critical banking systems, blending deep mainframe expertise (COBOL, JCL, DB2, IMS, CICS, VSAM) with modern cloud and observability tools (AWS, Java, Python, Splunk). He has a proven record of resolving high-impact production issues—such as fixes that improved experience for more than 100,000 loan customers—and leading integrations between Mainframe and cloud services to enable new financial products. Experienced in Agile delivery, end-to-end testing, and documentation, Marlon consistently ensures high-quality, on-time releases while mentoring teams and building onboarding materials. Based in Paraná, Brazil, he pairs a Computer Engineering degree and a postgraduate specialization in Web Applications with a hands-on mentality for both legacy modernization and scalable cloud-native solutions. An underappreciated strength is his continuity across decades of banking platforms, making him uniquely effective at translating legacy constraints into modern, observable architectures.
5 years of coding experience
17 years of employment as a software developer
North Paraná University
English, Portuguese
Github Skills (7)
next-level5
botnet5
react3
nodejs3
react-native2
typescript2
javascript2
Programming languages (3)
Github contributions (5)
MarlonFerreira99/nlw
Jun 2020 - Jun 2020
Next Level Week - RocketSeat
Contributions:8 commits, 3 pushes, 1 branch in 4 days
reactnext-levelreact-nativerocketseatjavascript
MarlonFerreira99/FoodFy
Jun 2020 - Jul 2020
Bootcamp LaunchBase - Rocketseat
Contributions:5 commits, 4 pushes, 1 branch in 9 days
reactlaunchbase-rocketseatlaunchbaserocketseatjavascript
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