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Joel Deon Dsouza Founder | Coder | Athlete
Hi wanderer, I’m Joel, founder of problems, solver of problems.

A full-stack developer, founder, and athlete based in Berlin. I enjoy turning ideas into products, experimenting with new technologies, and building things that solve real problems.

I’m the creator of JistScript, a TypeScript-based scripting language designed for data-centric applications, with a focus on powerful and flexible data processing.

I’m also the founder of Jobell, Illu, and a few projects currently brewing behind the scenes. When I’m not coding or building companies, you’ll probably find me competing in one of the various sports I enjoy.

In short: I build, I experiment, I compete and occasionally wonder why I started another project.

Joel Deon Dsouza - Founder | Coder | Athlete
TechStack: Find the Pokémon

Languages

JavaScriptTypeScriptSwift (iOS)PythonC#RustBash / ShellJistScript

Frontend & UI

HTML & CSSReactNext.jsVue.jsNuxt.jsAstroPika.exeVitehtmxThree.jsReact ContextReduxTanStack QueryBootstrapTailwind CSSSassMaterial UIshadcn/uiAnt DesignFramer MotionD3.jsStorybook

Mobile & desktop

React NativeReact Native ExpoSwiftUIJetpack ComposeElectron.jsGoogle Play ConsoleApple App Store

Backend & APIs

Node.jsExpress.jsNest.jsFastAPIDenoBunnpmREST APIsGraphQLSocket.ioAuth0 / NextAuthClerk

Databases

MongoDB AtlasMongoosePostgreSQLNeon DBSupabaseFirebase

Testing

CypressJestVitest

DevOps & cloud

DockerKubernetesCI/CD (GitHub Actions)LinuxAWSGoogle CloudAzureCloudflareVercelNetlifyRenderCloudinary

Payments

StripeMolliePayPal

CMS & platforms

WordPressWixSquarespaceShopifyOdooAnalytics & SEO

Architecture & practices

System DesignMicroservicesAgile / Scrum

Dev tools

GitGitHubGitLabPostmanProxymanChrome DevToolsVS CodeAntigravity IDEZedAtomWebStormIntelliJ IDEAXcodePython IDLEJupyter NotebookHyperESLint & PrettierNotionMicrosoft Office

Creative

BlenderDaVinci Resolve
Joel Deon Dsouza - Founder | Coder | Athlete
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