Full-Stack & iOS Engineer · System Architect

Aron
Balog

Building cutting-edge solutions from mobile apps to cloud platforms and AI systems. 20+ years of turning ideas into production-ready software.

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Aron Balog
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About Me

Crafting digital experiences since 2004

I have actively contributed to the development of cutting-edge technologies that revolutionized user interfaces by delivering UI components directly from the network and seamlessly rendering them on mobile applications.

From leading iOS architecture for award-winning apps to building AI-powered automation systems and cloud solutions, I bring a full-spectrum engineering perspective to every project.

I hold a Master's degree in Business Informatics from the University of Rijeka and bring experience across companies like Discord, HRT, Croatia Osiguranje, and more. Based in Rijeka, Croatia.

20+
Years Coding
15+
Technologies
11
Age of First Program
M.Sc.
Business Informatics

Experience

Where I've worked

Full-Stack & AI Engineer

Freelancing

Jan 2025 — Present

Building full-stack web, mobile, and AI solutions for businesses using Next.js, React Native, Nest.js, and Tailwind CSS. Delivering AI-powered automation systems, serverless architectures on AWS & Azure, and custom AI agents for document processing and workflow automation.

Next.jsReact NativeNest.jsAWSAzureAI/LLM

AI System Architect

Aestus Grupa

Sep 2024 — Jan 2025

Led an AI automation project for a bookkeeping firm, cutting manual work through AI-based process redesign. Managed project scoping, vendor evaluation, implementation, and staff training for long-term adoption.

PythonAI/MLCloudRAG

Senior iOS Engineer

Shape 404, Zagreb

Sep 2019 — Jun 2023

Mentored junior and mid-level developers on robust app architectures. Led iOS development for LAQO (award-winning insurance app), Juhuhu (HRT kids app), and Valamar. Delivered architecture training workshops.

SwiftSwiftUIUIKitiOS

Senior iOS Engineer

Undabot, Zagreb

Sep 2015 — May 2019

Refactored the legacy code of Njuškalo, Croatia's largest classifieds app. Led Swift migration, established modern development practices, and implemented unit testing across the codebase.

SwiftObjective-CAsyncDisplayKit

System Architect & Founder

FreeDrink (Founder)

2013 — 2015

Founded a hospitality tech startup transforming bars and restaurants into web-shops. Built a social networking platform for connecting people while socializing over drinks.

JavaSpring BootWeb

Projects

Things I've built

LAQO Insurance
iOS App

LAQO Insurance

Award-Winning
SwiftSwiftUIUIKit
Description & info

Description

Award-winning insurance app with dynamic forms UI and seamless UIKit–SwiftUI bridge. Received multiple prestigious industry awards.

Info

Dynamic policy flows, forms engine, and native performance. Product and UX recognized across industry programs.
Njuškalo
iOS App

Njuškalo

1M+ Downloads
SwiftObjective-CAsyncDisplayKit
Description & info

Description

Croatia's largest classifieds portal with 1.9M weekly active users. Led mobile architecture transformation, Swift migration, and AsyncDisplayKit integration.

Info

Owned architecture direction, Objective-C to Swift migration, and AsyncDisplayKit for smooth lists at national scale.
CoreNavigation
Open Source

CoreNavigation

Open Source
SwiftiOS
Description & info

Description

Advanced iOS navigation framework with deep linking, state restoration, conditional navigation, and caching.

Info

MIT-licensed; designed for apps that need predictable stacks, deep links, and restored state across launches.
Vox
Open Source

Vox

Officially Recognized
SwiftNetworking
Description & info

Description

Swift JSON:API client framework using marshalling for direct memory access. Officially listed on jsonapi.org.

Info

Marshalling layer for fast JSON:API parsing; suitable for resource-heavy clients and spec-compliant backends.
Lotus Lambda
Cloud Platform

Lotus Lambda

Co-Founded
CloudMobileCustom Language
Description & info

Description

Co-founded a company building a server-side rendering UI platform for mobile apps with a custom language called Lotus.

Info

SSR-style delivery for mobile clients; Lotus language for declarative screens and shared logic across platforms.
Juhuhu (HRT)
iOS App

Juhuhu (HRT)

National TV
SwiftSwiftUI
Description & info

Description

A "Netflix for kids" app built for Croatian national television (HRT). Designed architecture using SwiftUI, serving content for ages 3–11.

Info

Public-service broadcaster (HRT); parental controls, age-appropriate catalog, and SwiftUI-first structure.

Skills

My toolkit

Languages

SwiftObjective-CTypeScriptJavaScriptPythonKotlinJavaCC++PHPLua

Frontend & Mobile

ReactNext.jsReact NativeVue.jsSwiftUIUIKitTailwind CSS

Backend

Nest.jsSpring BootNode.jsGraphQLREST APIsMongoDB

Cloud & DevOps

AWSAzureDockerKubernetesTerraformCI/CDServerless

AI & Machine Learning

LLMsRAGAI AgentsVector DatabasesWorkflow Automation

Blog

Articles on Medium

Backend2 articles

Spring Boot + Kotlin + GraphQL + MongoDB

iOS4 articles

iOS — Reinventing View Controller Navigation

Swift5 articles

Gimme Some Sugar

Swift2 articles

Custom Operators

View all on Medium

Contact

Let's build something amazing

I'm always open to discussing new projects, creative ideas, or opportunities to be part of something great.

Say Hello
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