Kromka IT
Kromka.IT

Dávid Kromka

Websites & web applications · Poprad, Slovakia

I specialize in developing modern web applications, from design to deployment. I have worked on several international projects. I successfully completed my studies at the Faculty of Informatics and Information Technologies of STU in Bratislava, acquiring advanced technologies and software development methodologies.

Based in Poprad, I build websites and web applications for clients across Slovakia and remotely.

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HomeController.csProgram.cs
using Microsoft.AspNetCore.Mvc;
namespace Kromka.IT;
public class HomeController : Controller
{
public IActionResult Index()
{
return View(model);
}
}
⎇ mainC# · .NET 8 · ASP.NET Core
.NET.NET
Vue.jsVue.js

What I Offer

End-to-end web and software development services – from design all the way to deployment.

Web Application Development

Designing and building modern, custom web applications – from the first concept through implementation to deployment.

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Full-stack Solutions

Complete frontend and backend in ASP.NET Core, Blazor, Vue.js or Next.js. One partner for the whole project.

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AI Integration

Connecting applications with language models and AI tools – smart content generation, assistants and automation.

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Databases & Data

Designing, optimising and programming databases in MS SQL Server, T-SQL and PostgreSQL for fast, reliable applications.

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Web Accessibility (WCAG)

Testing and adapting websites and mobile applications to WCAG standards so they are accessible to everyone.

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Training & Consulting

Programming lessons and technical consulting – from basics to advanced topics, tailored to your pace and goals.

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Cooperations

SEN Systems

SEN Systems

Working here since 2022 as a full-stack developer. Building web and desktop applications for domestic and international clients using ASP.NET Core, Blazor, WinUI 3 and MS SQL.

sensystems.sk →
Latschbacher

Latschbacher

Austrian company in forestry and timber logistics. Collaborated on the development and maintenance of the WinforstPro ERP system.

latschbacher.com →
MIRRI

MIRRI

Ministry of Investments, Regional Development and Informatisation of the SR. Tested accessibility of web and mobile applications according to WCAG standards.

mirri.gov.sk →
Algorithmics

Algorithmics

International coding school for children and youth. Taught Python and Scratch programming and translated educational materials from Slovak to English.

slovakia.alg.academy/svk →
Farnosť Nová Lesná

Farnosť Nová Lesná

Roman Catholic Parish of Nová Lesná. I manage the content of the parish website.

novalesna.farnost.sk →

Portfolio

Education

Apps for learning through play – from worksheets and games for preschoolers to a safe lab for future security experts.

The Predškoláčik family

A family of apps for preschoolers, their parents and teachers – learning through play, worksheets and games to print or play online.

predskolacik.app ↗
Predškoláčik – an apple-counting exercise with Bali the bunny and reward stars

Web

Predškoláčik

Educational application for preschool-aged children that uses AI to generate interactive exercises. It develops early literacy, counting and logical thinking through play, adapting to each child's own pace.

EducationArtificial IntelligenceLearning Through Play
View details →
PexesoLab – a memory game in progress with two matched pairs of cards

Pexesolab

Memory card game generator from your own images. Upload any photos and the app automatically creates a custom memory game using AI – ideal for teachers, parents and children.

DominoLab – preview of an A4 page of colourful printable domino tiles

DominoLab

A printable domino generator and an in-browser game. Tiles with dots, numbers, colours, shapes or your own pictures, and an A4 PDF in seconds – free, no registration.

LinkLab – a worksheet matching jobs to their things, with the links drawn in

LinkLab

Worksheets for preschoolers: join matching pairs, sort pictures into groups, or cut and glue. Ready-made themes, a library of 800+ pictures searchable in Slovak and English, and a one-page A4 PDF.

MatchLab – two round Match! cards with the single picture they share highlighted

MatchLab

A generator for spot-the-match card games in the style of Dobble. Any two cards share exactly one picture – built from your own photos, emoji, shapes or letters, with a printable PDF and an online game.

BingoLab – three numbered bingo cards, one with a winning row marked

BingoLab

A bingo card generator with pictures, words, letters, numbers or math problems. Unique cards in a printable PDF, a caller for the projector and an online game – free and with no sign-up.

MapQuiz – a blank world map with the found countries coloured green

Web

MapQuiz

A blank-map geography quiz. Countries of the world and of each continent, capitals, regions, oceans, rivers, lakes and mountain ranges – type the names against the clock or find them on the map, in Slovak or English.

EducationGeographyLearning Through Play
View details →
SQL Injection Lab – a login-bypass task showing the injected SQL query and a defence tip

Web

SQL Injection Lab

A safe and legal laboratory for practising SQL Injection attack techniques. Features multiple levels with realistic scenarios, vulnerability explanations and defence tips – suitable for students and professionals alike.

SQL InjectionInformation SecurityEducation
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Science & research

Research projects from FIIT STU – predicting the toxicity of chemical substances with machine learning.

Screenshot of Toxipred genotoxicity prediction tool powered by machine learning

Web

Toxipred – Genotoxicity Prediction

Freely available tools for predicting phototoxicity and genotoxicity of chemical substances using machine learning. Developed as part of a research project at FIIT STU in collaboration with the research team.

University ProjectGenotoxicity PredictionArtificial Intelligence
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Screenshot of Toxipred team page for the TP CUP competition at FIIT STU Bratislava

Web

Toxipred – Team Page

Team page for the TP CUP competition at FIIT STU. The project goal was to build a machine learning model for detecting genotoxicity of chemical substances.

University ProjectTeam PageArtificial Intelligence
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Personal & community projects

Websites and apps for the people around me – family, friends and small communities.

Screenshot of Track My Bunny app – pet rabbit health and weight tracking dashboard

Web

Track My Bunny

A health management app for pet rabbits. Daily logs, weight trend monitoring, medication scheduling, and vet visit records with PDF export.

Pet HealthTrackingNext.js
View details →
Screenshot of Mirka & David wedding website – guest information and photo gallery

Web

Mirka & David

Wedding website with guest information, day schedule, and photo uploading and sharing. Built as a custom gift for the newlyweds.

Wedding WebsiteGuest InformationPhoto Sharing
View details →

Technologies

Backend

ASP.NET Core
ASP.NET
Blazor
Blazor
WinUI 3
WinUI 3
.NET
.NET
Python
Python
Node.js
Node.js

Database

MS SQL Server
SQL Server
T-SQL
T-SQL
PostgreSQL
PostgreSQL

Frontend

Vue.js
Vue.js
React
React
Quasar
Quasar
TypeScript
TypeScript
JavaScript
JavaScript
HTML
HTML
CSS / SCSS
SCSS

Tools & Other

Bootstrap
Bootstrap
DevExpress
DevExpress
jQuery
jQuery
Git
Git
Docker
Docker
Claude Code
Claude Code
WCAG Accessibility
WCAG

Education

  1. 2025

    FIIT STU – Completed Master's degree at the Faculty of Informatics and Information Technologies of STU in Bratislava

  2. 2024

    Blazor – ASP.NET Core Blazor training at GOPAS training centre

    WinUI 3 – 3-day training led by Prof. Veikko Krypczyk from German training centre IT-Visions

  3. 2023

    FIIT STU – Completed Bachelor's degree at the Faculty of Informatics and Information Technologies of STU in Bratislava

    WCAG – Internal web accessibility training at the Ministry of Investments, Regional Development and Informatisation of the Slovak Republic

  4. 2022

    Web Dev 5 – Course: Web Programming V. – jQuery, interactivity and introduction to JavaScript at IT Learning Slovakia

    Web Dev 4 – Course: Web Programming IV. – responsive design, media queries, flexbox and grid at IT Learning Slovakia

    Web Dev 3 – Course: Web Programming III. – expert HTML & CSS, advanced selectors, media and forms at IT Learning Slovakia

    MS SQL – Course: Microsoft SQL Server for Developers III. – database programming at IT Learning Slovakia

    Bootstrap – Course: Bootstrap I. for beginners – responsive HTML, CSS & JS framework at IT Learning Slovakia

  5. 2021

    DAS – Completed the Diocesan Animator School in Važec, focused on team leadership and Christian life

    Teaching – Courses on youth IT education methodology and preparation of teaching materials at the international coding school Algorithmics

  6. 2020

    FIIT STU – Started Bachelor's studies at the Faculty of Informatics and Information Technologies of STU in Bratislava

    GPUK – Completed secondary education at Gymnázium Kukučínova in Poprad

Contact

Web Development in Poprad, Slovakia | Kromka IT