Decided to start a startup, so wore many hats at once:

• Built a language parser, cloud-based IDE and crossplatform framework for mobile apps
• Developed Android SDKs & Backend SDKs using Kotlin Multiplatform
• Authored extensive documentation for services and libraries
• Developed and deployed multiple API’s using Kotlin, setup CI/CD to deploy docker images to AWS and libraries to GitHub Packages
• Created landing pages, pitch decks and company branding materials
• Negotiated with clients and investors

2019 - 2023 | Consulting & Contracting | Rust, LLMs, Kotlin, Android
Worked on a few projects, some in collaboration with an agency during this time:

• 2020 - 2023 | Laqo Mobile App | Lead Android Developer
  
  Lead development of a mobile app for an insurance startup (100% digital insurance), winning 2 regional App of the Year awards. Developed the app from scratch using a Redux-based architecture with Kotlin Flows and Coroutines, built a custom Forms SDK to implement and manage dynamic forms, cross-platform geofencing solution using Kotlin Multiplatform and a Android Studio wizard for code generation. Educated and onboarded junior and mid developers to the project.

  

• 2023 | Shuttle.rs | Rust & LLM Software engineer
  
  Joined the team as a contractor to build a CLI tool using LLM models to generate Rust code, creating whole services out of a single prompt and deploying them to Shuttle's platform. Was quite fun to combine my love for Rust and LLM's, creating cool stuff like multi-agent setups, templating, agent planning and extending compile-feedback cycle with language models.
• 2019 - 2021 | JuHuHu Mobile App
  
  Rewrote a mobile video streaming app for the national TV house (HRT). It's basically a netflix for children which Croatian TV offers for free. Since the app itself was not updated for years, the client wanted a complete rewrite and redesign of the app. Included fun stuff like streaming, chromecast, animated backgrounds and interactions, geolocking and profile-based app customization.

  

• 2022 | MindPolis app
  
  Wrote an app for a theater/art project MindPolis. It's a quiz-like app for a selected number of contestants that can talk to GPT-3 pretending to be a character, send him photos, voice recordings and videos, take part in quizes and talk to their quiz-mates. It uses GPT-3 both as a chatbot and as a judge of the quiz.

2017 - 2020 | Undabot  | Software architect x Android developer

• A1 Telekom (international)
  
  Well, this was a huge one! The project was done for A1 Telekom, with the idea that they want to unify their apps across markets, but all of them were done by different vendors and in different tech, so we had to write "one app to rule them all". Worked on this project from the pure start - started on writing RFPs and SRS documents, ended by writing the core architecture & technology of the app.
  Technically, it was a fun and challenging project:
  Each market has it's own offerings, features, style and language, so the app had to be easily adaptable. Ended up writing a dynamic UI based on atomic design that changes depending on the API settings - users in one market can have different features and experiences than another market.

  

• Njuskalo (largest classified in the region)
• 24sata (#1 newspapers in the region)
• Wogibtswas.at (discounts & catalogs apps)
• Book & Zvook (croatian Audible)
• BC Agronaut
• JobFair (University job fair app - did both design and development)

• Developed multiple Android apps for both startups and large international corporations, mostly using Java & Kotlin with MVP and MVVM architectures with over 90% test coverage.
• Developed both internal prototypes and production apps using Flutter
• Built and architected robust systems for scaling, localisation and dynamic feature management
• Cut time-to-delivery for new features, reduced build times by over 80%, refactored critical project areas to enable faster delivery and testing without impacting release schedules
• Assessed hiring prospects, organised planning sessions with stakeholders, wrote project specifications and proposals, researched and developed prototypes
• Performed code analysis using multiple techniques to pinpoint critical codebase areas and provide data needed to back the technical changes
• Improved development processes and tools across teams, helped teams adopt Kotlin, built and maintained CI/CD systems, championed unit-testing practices leading to over 90% code coverage on projects.
• Wrote Izzy - a kotlin annotation processing library to parse JSON API standards, Unikons - a kotlin library to extend the language with Unions and internal project scaffolding tools to generate code from project templates.
• Wrote The Art of Android DevOps article