Hubert

Hi, I'm Hubert 👋

Fullstack web developer from Poland 🇵🇱 passionate about creating innovative solutions

A little about me

As a full-stack developer, I combine modern technologies like Next.js and the T3 Stack with proven React and .NET solutions, specializing in full stack web end-to-end applications (from UI design → business logic → database architecture → deployment).

Over the past few years, I've built:
  • BlitzyApp - no-code platform for rapid idea validation with waitlist integration and static site export
  • AI Companion - offline chatbot with long-term memory, ability to learn and even ability to be time aware
  • Aichar - Python library written in Rust with 750k+ PyPI downloads
  • Character Factory - AI studio with Stable Diffusion + LLMs

I thrive on solving diverse technical challenges and constantly experiment with new technologies – from exploring functional programming concepts in Haskell to optimizing low-level code in Rust, and even dabbling in AMD64 Assembly to better understand computer architecture fundamentals.

Beyond coding, I mentored my peers helping them prepare for INF.03/INF.04 exams (Polish national IT certifications), focusing on algorithms, HTML5, CSS3, JavaScript, C#, .NET, Angular, and DevOps practices.

Experience

Founder & Full Stack Developer

2024 - Present

BlitzyApp.com

Built SaaS no-code platform from scratch using T3 Stack, Next.js, React, tRPC, TypeScript, Tailwind CSS and Turso database
Implemented visual editor, authentication system and database integration
Empowering startups to validate ideas in hours instead of weeks

Education

ZSP2 WÄ…growiec High School logo

ZSP2 WÄ…growiec High School

2020 - 2025

Programmer Technician (Technik Programista)

Focus areas: Computer science fundamentals, algorithms, and software engineering principles
Full-stack development: Web applications (ASP.NET, Angular), mobile apps, and desktop software
Database systems: SQL Server, PostgreSQL, and MySql administration
Professional internships: 2 months working as a web developer
Exam preparation: INF.03 and INF.04

My Projects

Blitzy

Blitzy

SaaS platform solving the problem of slow idea validation through visual no-code prototyping. Reduces time-to-market from weeks to hours by enabling no-code creation of basic website MVPs with built-in waitlist functionality

Character Factory

Character Factory

AI persona engineering studio addressing character consistency challenges in generative AI. Combines Stable Diffusion with LLMs to enable cross-platform personality persistence, used by 25k+ monthly users for creation of roleplay characters and AI research.

Aichar

Aichar

Python character management library for cross-platform AI personas. Enables creation/editing/export of characters across TavernAI, SillyTavern, Pygmalion and other frontends. Supports JSON/YAML/card formats with way faster processing via Rust core. 750k+ PyPI downloads.

AI Companion

AI Companion

Self-hosted AI chatbot engine with offline execution (CPU/GPU), support for Llama 2/Mistral models (.gguf), and CUDA/Metal acceleration. Features roleplay syntax (*actions*), dual memory system (short/long-term), and real-time learning. Packaged as 26MB Rust binary with web UI.

AssistlyApp

AssistlyApp

Rapid prototyping exercise demonstrating product development under time constraints. Delivered cloud note management POC in 3 hours during hackathon, solving immediate need for centralized student resources.

Todist

Todist

Fullstack technical showcase proving ability to ship production-ready apps rapidly. Implemented secure task management with auth and PostgreSQL in 24h, emphasizing clean architecture patterns.

Sharp Scheduler

Sharp Scheduler

Web application for task scheduling and terminal command automation with simple and clean admin interface. Enables users to schedule, manage, and monitor system commands using advanced cron expressions and provides comprehensive execution logging.

Backup Database Application

Backup Database Application

Full-stack web application that automates database backups for PostgreSQL. Features include automated backups on a configurable schedule, detailed logging, and a basic dashboard.

Short Maker

Short Maker

Automated video compositing tool combining clips, audio, and dynamic subtitles. Leverages FFmpeg pipelines and Python for local, script-based short vertical video production (TTS/graphics/dynamic subtitles). Solves content creation scalability through modular media processing without cloud dependencies or external APIs.

More projects available on my GitHub

Ready to start a project?

Let's work together to bring your ideas to life!

Contact Me

Feel free to reach out to me through any of the following platforms:

Email address: hubertkasp13@gmail.com