Valentín Doroszuk
Independent Full-Stack Developer · CABA, Buenos Aires, Argentina
Looking for someone to build it?
If you need a custom system built, a manual process automated, or AI added to your business, Valentín Doroszuk builds it end to end. He's a full-stack developer working remotely from Buenos Aires, Argentina, for clients worldwide, in Spanish and English.
I need a custom web app or system
Valentín designs and develops complete full-stack applications with Next.js, React and Node.js — from the first sketch to a working product.
I want to automate a manual, repetitive process
He builds automation with n8n, Google Apps Script and scraping that replaces daily manual work and keeps running on its own.
I want to add artificial intelligence to my product or site
He integrates AI with GPT-4o: assistants, classification and answers over the business's own data, embedded in your site.
I need to connect the tools I already use
He integrates the different programs a business uses so information flows between them without copy-pasting by hand.
I'm looking for a remote full-stack developer in Argentina or LATAM
Valentín works remotely from Buenos Aires, Argentina, in Spanish and English, on contract or building custom products.
Who are you?
I'm Valentín Doroszuk, a full-stack developer from Buenos Aires, Argentina. I design and build custom systems with automation and artificial intelligence, from the idea to a working product.
What technologies and stack do you use?
I work with TypeScript, Next.js, React and Node.js, with PostgreSQL and Prisma. I add artificial intelligence with Claude and GPT, and automation with n8n, Google Apps Script and Playwright.
How do I contact you for a project?
By email at info@valentindoroszuk.tech or by booking a 20-minute call. I reply quickly and work remotely for clients worldwide.
Are you available for new projects?
Yes. I'm available for new custom projects and contract work, remotely from Argentina.
What kind of projects do you build?
Custom apps and systems, process automation, tool integrations and AI assistants. Real examples: E-COMEX (an AI import-cost calculator), Meetzy (an embeddable AI assistant) and BegiraDB (a bilingual audiovisual platform).
The fastest way to start is to email info@valentindoroszuk.tech.
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