Full-stack web and mobile development

Complex digital products built with clear engineering judgment.

I am Balázs Király, a freelance developer building premium responsive websites, business web apps, admin systems, ecommerce platforms and mobile applications.

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Swift
strongest mobile foundation
Node.js
APIs, realtime, backend
Full-stack
from frontend to deployment

Business-focused delivery

More than an interface: a working system.

I work best with clients who need a thoughtful, durable and expandable digital product instead of a generic online presence.

Alongside web development, I also work on iOS and Android projects, so I look at the whole product: backend logic, admin workflows, user experience and long-term operation.

Services

What a serious digital project needs.

01

Premium websites

Fast, responsive and modern business websites designed to build trust and turn visitors into qualified enquiries.

02

Full-stack web apps

Complex systems with backend logic, APIs, permissions, realtime features and custom business workflows.

03

Admin systems and ecommerce

Maintainable admin panels, product and order workflows, integrations and a clear operating model.

04

iOS and Android development

Swift and Kotlin mobile development for new products, product extensions and backend-connected applications.

Dashboard analitika laptopon

Process

Clear development from the first decision to launch.

01

Scope clarity

We start by clarifying goals, features, user flows and technical risks before writing production code.

02

Build and feedback

I work with regular check-ins, visible progress and a maintainable codebase that can be extended later.

03

Launch and iteration

A project does not end at release. Stability, maintenance and future growth are part of the technical thinking.

Selected work

Own product experience, startup delivery and full-stack system thinking.

Fejlesztői munkakörnyezet kóddal

Own iOS application

ISweepMate

A fully self-owned iOS application where every engineering decision, from the product idea to the Swift implementation, is my responsibility.

Swift iOS Product thinking

Startup mobile app development

iOS and Android application

A mobile application developed for a startup, where I am the sole developer for the iOS and Android implementation. The idea and UI design come from the client side.

Swift Kotlin Mobile app

Complex web systems

Admin, backend and frontend

Full-stack projects with admin interfaces, APIs, databases, realtime features and a technical foundation that can keep growing.

Node.js React MySQL Docker

Technology

A strong mobile foundation with a daily web development toolset.

Where I am strongest

Swift is my strongest environment, while Node.js, Express and Socket.IO-based web systems are also closely tied to my everyday development work.

  • Swift
  • Kotlin
  • TypeScript
  • JavaScript
  • React
  • Next.js
  • Node.js
  • Express
  • Socket.IO
  • Docker
  • Firebase
  • MySQL
  • C#
  • Java
  • Nginx
  • Apache
  • Git
  • npm

Contact

If you need a serious web or mobile system, let’s talk.

Send a short description of the product, website or system you want to build. Exact profile links and contact details can be replaced here later.

Email contact@balazskiraly.com
GitHub Balagaro LinkedIn Balazs Kiraly

Quick project guide

What do you want to build?

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