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About me

I am Daniel Josue Castellanos, also known as Dnjoc, a full-stack developer and designer in Barquisimeto, Venezuela. I build web, desktop, and mobile software for businesses.

Full-stack developer focused on practical business software

I build websites, web applications, Windows desktop applications, Android mobile apps, and brand systems for clients who need software that is clear, maintainable, and useful from day one.

What I build

My strongest work is business software: insurance commission tools, agency management systems, custom dashboards, and digital experiences that connect design with real operational needs.

How I deliver

I work directly with clients from discovery to launch, choosing technologies that fit the project instead of forcing one stack everywhere. For desktop and mobile business apps, I support direct client delivery with controlled updates through custom APIs.

Core stack

React, Astro, TypeScript, Node.js, NestJS, PostgreSQL, SQLite, Electron, Tauri, React Native, Expo, Tailwind CSS, Figma, and Adobe design tools.

Project highlights

  • ComiGest: a production Electron desktop application for insurance commission and policy management.
  • InsuAgeM: a React and NestJS web platform for insurance agency management, currently in active development.
  • Industry demos: focused website templates for restaurants, insurance agencies, barber shops, automotive repair, laundry services, and creative portfolios.

Need a reliable digital product?

Tell me what you want to build and I can help turn it into a clear technical plan, visual direction, and working product.

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