# Mohi Us Sunnat

> Senior mobile systems engineer and applied AI builder in Salzburg, Austria. He works on Android, Kotlin Multiplatform, Media3 playback and SDK design, and publishes notes from that work at sunnat629.dev.

Mohi Us Sunnat has spent more than ten years in mobile engineering. He was Senior Android Developer at NativeWaves AG in Salzburg from August 2020 to January 2026, where he owned an Android SDK from architecture through release and enterprise support, built low latency ExoPlayer playback for live streaming, extended the SDK to Android TV and Fire TV with Compose for TV, and led Kotlin Multiplatform adoption across Android and iOS teams. Earlier roles were in Dhaka and remote work for teams in Lithuania.

Outside product work he is Country Lead of the Bangladesh Kotlin User Group, an organizer of droidcon Bangladesh, founder of Shunnek Labs, and a Kotlin and Android mentor on ADPList. He was a Golden Kodee finalist for In-Person Presence at KotlinConf 2026 in Munich. The site reports more than 50 talks and more than 500 developers mentored.

The site is English only, has no login and no paywall. If you quote it, cite the page URL.

## Pages

- [Home](https://sunnat629.dev/): Who he is, what he builds, and the current focus on Android, Kotlin Multiplatform, media and applied AI.
- [Selected work](https://sunnat629.dev/work): Three case studies. A production media playback SDK, Kotlin Multiplatform adoption across platform teams, and AI assisted automation inside a delivery workflow.
- [Community](https://sunnat629.dev/community): Speaking, conference organizing, user group leadership and mentoring, including the Golden Kodee finalist place at KotlinConf 2026.
- [Diaries](https://sunnat629.dev/diaries): The writing archive. It reads q, area, format, topic and tag from the URL, so a query is linkable, for example https://sunnat629.dev/diaries?q=kotlin
- [Courses and mentoring](https://sunnat629.dev/courses): How to ask about Android and Kotlin courses, one to one mentoring, team workshops and architecture reviews.
- [Privacy](https://sunnat629.dev/privacy): What the newsletter and inquiry forms store and which external services the site loads.

## Diaries

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No diary entries are published yet. Drafts stay in the repository and are not served in production. New entries appear in the RSS feed and the sitemap as soon as they go live.
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## Publications

- [Learn Spring for Android Application Development](https://www.packtpub.com/en-at/product/learn-spring-for-android-application-development-9781789341911): Packt Publishing, 2019. Spring framework concepts applied to Android, covering dependency injection, REST APIs and reactive patterns.
- [Mastering Kotlin Flow](https://academy.droidcon.com/course/mastering-kotlin-flow-a-comprehensive-guide-to-reactive-data-streams): droidcon Academy, 2025. Course material on Kotlin Flow from basics to StateFlow, SharedFlow, operators, testing and architecture.

## Topics he writes and speaks about

- Android, Kotlin, Jetpack Compose, coroutines and Flow
- Kotlin Multiplatform and Compose Multiplatform boundaries between shared and native code
- Media playback with Media3 and ExoPlayer, including HLS, DASH, DRM and low latency live
- SDK and library design, Clean Architecture, multi module builds and offline first data
- Applied AI in engineering workflows, agent and MCP tooling, AI assisted CI and CD
- Technical leadership, mentoring and Kotlin community building

## Profiles

- [GitHub](https://github.com/sunnat629)
- [LinkedIn](https://linkedin.com/in/sunnat629)
- [Medium](https://medium.com/@sunnat629)
- [X](https://twitter.com/sunnat629)
- [ADPList](https://adplist.org/mentors/mohi-us-sunnat)
- [Facebook](https://www.facebook.com/sunnat629/)

## Machine readable

- [Sitemap](https://sunnat629.dev/sitemap.xml): Every indexable URL with a last modified date.
- [RSS feed](https://sunnat629.dev/rss.xml): Published diary entries.
- [robots.txt](https://sunnat629.dev/robots.txt): Crawler rules, including the AI crawlers that are welcome.

## Contact

- Email: me@sunnat629.dev
- Inquiry form: https://sunnat629.dev/courses
- Based in Salzburg, Austria. Works in English.