Services

Comprehensive IT solutions tailored to your business needs

Web Applications

Full-stack development of modern, responsive web applications using React, TypeScript, Node.js, and cutting-edge technologies.

  • Single Page Applications (SPA)
  • Progressive Web Apps (PWA)
  • Dashboard & Admin Panels
  • E-commerce Solutions

Mobile Applications

Cross-platform mobile development with React Native, delivering native-like experiences on both iOS and Android.

  • Cross-platform Development
  • Bluetooth Integration
  • IoT Device Connectivity
  • Offline-first Architecture

Blockchain & Web3

Development of blockchain solutions, smart contracts, and crypto wallet integrations for decentralized applications.

  • Smart Contract Development
  • Wallet Integration
  • DApp Development
  • Token Systems

AI Integration

Integration of artificial intelligence and machine learning capabilities into existing systems and new applications.

  • AI-powered Features
  • Chatbot Development
  • Data Analysis Tools
  • Automation Solutions

IT Consultancy

Strategic technology consulting to help businesses make informed decisions about their digital transformation journey.

  • Architecture Design
  • Technology Stack Selection
  • Code Reviews & Audits
  • Team Mentoring

DevOps & Infrastructure

Setup and management of development pipelines, cloud infrastructure, and deployment automation.

  • CI/CD Pipeline Setup
  • Cloud Deployment (AWS)
  • Server Configuration
  • Performance Optimization

Technology Stack

A comprehensive toolkit built over 10+ years of hands-on experience

Frontend

React TypeScript React Native Tailwind CSS Tanstack Query GraphQL Electron

Backend

Node.js Bun Hono Koa Python Django ASP.NET

Database

PostgreSQL MS SQL MySQL SQLite TypeORM Drizzle ORM

Cloud & DevOps

AWS GitHub Actions CI/CD Docker Linux

Other Technologies

Blockchain Bluetooth/BLE IoT Raspberry Pi C/C++ Java

Professional Experience

A journey through diverse projects and industries

Sep 2025 - Present

Software Engineer

USBC - Freelance

Software Development, Software as a Service (SaaS) solutions.

2024 - 2025

Frontend Lead

Nudge Labs d.o.o.

Lead developer responsible for the entire Playground platform, overseeing architecture and performance. Implementing cutting-edge solutions using React, TypeScript, and modern frontend technologies.

2019 - Present

Software Engineer

Spaghetti Code

Designing and building cross-platform mobile applications using React Native. Focus on IoT device connectivity and Bluetooth integration for service-oriented applications.

2018 - Present

Product Owner & Lead Engineer

Live d.o.o.

Built and evolved an e-commerce solution into a complete warehouse management system. Full ownership of the entire project including server setup, CI/CD implementation, and development process.

2018 - 2024

Software Engineer

Gnowbe

Lead developer for the Dashboard platform, implementing client management, data visualizations, and payment processor integrations (Chargebee). Built with React, TypeScript, GraphQL, and AWS.

2017 - 2019

Software Engineer

Orbotech (KLA)

Designed and developed a remote management solution for PCB printers using React, Electron, and C++/Qt technologies.

Looking for detailed work history?

Request Full CV

Denis Subotic

My passion for computer science began back in 2000 when I received my first computer with a Pentium 3 processor. From that moment, I started exploring technology by installing FreeBSD and experimenting with processor overclocking.

Over the years, I have evolved from a desktop application developer in Java to specializing in web applications, which is now my primary area of expertise. My curiosity and passion for innovation have allowed me to work with diverse tech stacks across multiple industries.

Currently based in Italy, I work with clients worldwide, bringing together technical expertise with a deep understanding of business needs. In my free time, I explore AI, Blockchain, and work on Raspberry Pi and 3D printing projects.

Languages

Italian (Fluent) English (Fluent) Serbian (Native) Slovenian (Fluent)

Get in Touch

Ready to start your next project? Let's discuss how I can help.

Location

San Canzian D'Isonzo (GO), Italy