Freelance Software Engineer

Haris
Dautović

I build software products that work precisely as intended — for teams who care about the details.

Android, iOS, Web and AI integration.

Start a conversationBook a call

What I do

Focused services. Each one I've done for years.

  1. Android native development

    Primary12+ years

    Full-cycle native Android development for niche products, with a strong focus on performance, UX, scalability, and security.

    View details
    • Kotlin and Java
    • Jetpack Compose and XML
    • Clean architecture
    • Coroutines

  2. Maintenance and support

    Legacy codebase support for applications written in Java or Kotlin, including safe migrations to new Android versions, release automation and development process improvements.

    View details
    • Refactoring
    • Migration
    • CI/CD
    • Testing
    • Code review

  3. Product prototyping

    Proof-of-concept builds to test technical feasibility, and MVPs to validate market fit — before committing to full-scale development.

    View details
    • Rapid prototyping
    • Agile
    • MVP
    • Validation
    • Iteration

  4. iOS development

    Native iOS development using Swift and SwiftUI — built to feel at home on Apple hardware.

    View details
    • Swift
    • SwiftUI
    • UIKit
    • Xcode

  5. Web development

    Responsive, performant web applications in React and Next.js — from focused client-side products to full-stack solutions.

    View details
    • React
    • Next.js
    • TypeScript
    • Node.js
    • Tailwind CSS

  6. AI-enabled software

    Adding AI features to mobile and web products — LLM integrations, intelligent automation, and practical workflows that deliver real value.

    View details
    • AI and ML
    • LLM
    • GPT
    • Gemini
    • Claude
    • OpenClaw
Browse all services

Why teams hire me

A practical delivery partner for software products where quality and reliability matter.

12+ years shipping Android products

Hands-on Android development since 2014, including legacy modernization, architecture improvements, and long-term maintainability work.

Cross-platform product execution

Delivery across Android, iOS, web, and AI-enabled workflows, useful when teams need one engineer to connect product decisions with implementation.

Transparent collaboration

Clear communication, scoped milestones, and straightforward technical trade-offs so founders and teams can make decisions quickly.

GitHub profileLinkedIn recommendationsSee all services

Industries I've worked in

  • Drone systems
  • Video streaming
  • Social media
  • Blockchain
  • Healthcare
  • Business & productivity
  • Event management
  • Security & privacy
  • Digital entertainment
  • Automotive & fitness
  • Education
  • Civic engagement

Let's talk

Tell me what you're building. I'll tell you whether I can help.

Typical response within one business day.