Claus Wahlers
Owner at Codeazur Brasil
São Paulo, Brazil
Summary
👤
Senior🎓
Top SchoolClaus Wahlers is an experienced software developer and consultant with over 17 years delivering web, desktop, mobile and embedded applications from São Paulo. As owner of Codeazur Brasil he led award-winning open-source projects like the Flash Commodore 64 emulator (FC64) and FZip, and has deep hands-on experience in Flash/ActionScript, Objective-C iPhone apps and front-end engineering. At Mozilla he contributed to Shumway, improving a JS-based Flash VM, and later enhanced peer-to-peer UI functionality for an IPFS chat app, demonstrating both low-level VM work and modern React UX skills. He combines technical leadership roles (CTO, lead developer) with long-term freelance and consultancy experience, often bridging native integrations and custom RPC systems. Notably, his background spans security auditing, network visualization and device OEM software, reflecting a practical curiosity for systems that sit between hardware and user-facing interfaces.
17 years of coding experience
10 years of employment as a software developer
Computer Science, Computer Science at Carl von Ossietzky University of Oldenburg
German, English, Portuguese
Stackoverflow
1,231reputation
56kreached
25answers
3questions
Github Skills (19)
javascript10
component-development10
front-end-development10
react10
object-oriented-programming9
actionscript9
file-upload9
data-structures8
user-interface8
data-structure8
interface-design8
ui-design8
algorithms7
css7
plaintext6
Programming languages (7)
Github contributions (5)
mozilla/shumway
Jan 2012 - Jun 2014
Shumway is a Flash VM and runtime written in JavaScript
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:400 commits in 2 years 5 months
Contributions summary:Claus's commits primarily focus on enhancing the functionality of a Flash VM and runtime environment written in JavaScript. They implemented features related to MovieClip behavior, including frame labels, current frame labels, scene navigation, and the properties for currentFrame and currentScene. Additionally, the user addressed issues in the SWF parser, making it correctly handle UI16 data types and improving functionality in the LoaderDefinition, particularly related to importing assets, scene data, and applying blend modes.
javascriptruntimeflashmozillagecko
orbitdb-archive/orbit
Jun 2016 - Jul 2016
A distributed, serverless, peer-to-peer chat application on IPFS
Role in this project:Front-end Developer
Front-end DeveloperContributions:13 commits, 2 PRs, 16 comments in 1 month
Contributions summary:Claus primarily contributed to the front-end development of the application. Their work involved creating and integrating React components, specifically a spinner, channel controls, and a new message notification. They also updated existing components like the ChannelsPanel and Channel, and enabled file uploads/previews. The user refactored code, and implemented file preview functionalities, enhancing the user interface and user experience.
orbit-dbipfsreactchat-applicationp2p
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