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Jozef Čabala
Jozef Čabala
ensk
Let’s talk

Available for selected freelance projects

Software Developer

I build, improve and fix web applications.

Freelance help for teams and founders — from focused bug fixes and API integrations to small MVPs built with React and TypeScript.

View my workContact me
Stack
React · TypeScript · Full-stack
Focus
Web applications
Based in
Slovakia · Remote
Languages
English · Slovak

Selected work

Case studies of products I designed and built.

All projects
FlatWatch dashboard: a selected flat with its walking route to the anchor point on a map of Bratislava, and its details

Full-stack web application· Featured

FlatWatch

A self-hosted apartment watcher for Bratislava: it reads listing alerts, removes duplicates, scores every flat against my filters and real walking and transit time, and emails me the good ones.

  • Next.js
  • React
  • TypeScript
  • Node.js
  • PostgreSQL
  • Drizzle
  • MapLibre
  • OSRM
  • OpenTripPlanner
  • Docker
View case study: FlatWatch

What I can help with

Well-scoped work with a clear outcome. Small tasks are welcome.

  • Bug fixes & debugging

    Tracking down and fixing issues in existing React and TypeScript codebases.

  • React & TypeScript features

    New screens, components and features that fit the code you already have.

  • API integrations

    Connecting your app to third-party services, REST APIs and webhooks.

  • Improving existing apps

    Performance, accessibility, refactoring and paying down technical debt.

  • Internal tools

    Dashboards, admin panels and tools that make your team’s work easier.

  • Small MVPs

    Focused first versions to validate an idea quickly, without over-engineering.

Experience

Where I’ve worked and what I focused on.

  1. Sep 2023 — PresentFull-Stack Developer · Helikar Lab · Cell Collective
  2. Feb 2023 — May 2023Full-Stack Developer · NÚKIB (Czech National Cyber and Information Security Agency)
  3. Nov 2022 — Dec 2022Backend Developer · NBÚ (Czech National Security Authority)
Full background
Portrait of Jozef Čabala

About

Hi, I’m Jozef.

I’m a full-stack developer with a background in cyber security. Since 2021 I’ve worked on research software, projects for Czech national security authorities and client applications — and I like owning a problem end to end, from the database to the interface.

More about me

Have a project in mind?

Tell me what you need — a bug fix, a new feature or a small MVP. I’ll reply with next steps.

Get in touch