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

• Wrote a language parser, a CLI tool, a frontend editor with code editing and styling, a DOM differ, Android SDK, a few backends (stack: ktor, postgres, redis, docker, terraform, github actions)
• Designed a landing page, a visual editor, pitch decks, company branding

2019 - 2023 | Consulting & Contracting
Worked on a few projects in collaboration with an agency during this time:

• 2020 - 2023 | Laqo Mobile App
  
  Wrote and maintained a mobile app for an insurance startup (100% digital insurance), winning 2 regional App of the Year awards. Helped onboard new team members, leading the android team of up to 4 developers at the time. Included fun stuff like ID scanning, activity tracking, developing a custom Forms SDK to implement and manage dynamic forms, cross-platform geofencing solution, integrating with enterprise systems and more.

  

• 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)
  
  

  I joined this project as an architect late in it's development - it's been out for years, went through a few iterations and had a large amount of users - then scaling problems started appearing. The build times were insane (25+ minutes cold builds, 10+ mins hot), codebase was a huge legacy built throughout years and there were 5-6 team members working on it at all times. They needed me to reduce the technical debt without impacting the normal release cycle. Had quite a lot of fun doing it:

  • Did a huge code analysis using multiple techniques - dependency graphs, code churn and complexity data (cc and mccabe) and static analysis. This pointed out a few sectors of the code which were "hotspots" - rarely changed, had a large complexity and a lot potential bugs - and some spots which were changed often due to being bug-friendly.
  • Interviewed the team about the codebase and their favourite/least favourite parts
  • Rewrote a legacy UI module that did server-side rendering and spanned through the whole app, reducing complexity, covering it with test and potential bug area
  • Cut down build times for both development and production by optimising Gradle builds, caching and dependencies - from 25 to under 5 minutes

• 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)

• Helped the company connect with dev community and organised events - GDG Workshops, Talks and Kotlin Community talks
• Cut time-to-delivery for new features with standardisations and generators
• Refactoring key components and cutting down build times by over 80%
• Improved development processes and tools across teams, helped teams adopt Kotlin
• Helped the team develop unit-testing practices that lead to over 90% code coverages.
• Wrote Izzy - modern library to parse JSON API standards with the power of annotations.
• Wrote The Art of Android DevOps article