Position: Android Software Developer
Category: Android
English level: intermediate
Years of experience: 2

From my point of view, the biggest achievement was my work on the medical project. I've never felt such a big responsibility before it.
Also during my career, I had a lot of challenges, but the most memorable were: migration of the Dagger in the very old & big legacy project; work with SIP calls and BLE beacons.
Android SDK, Java Core, Kotlin, XML, JSON,
SQLite, Room, Realm, Retrofit2, RxJava2, RxAndroid, Butter Knife, Picasso, Glide, JSOUP, Moxy, Cicerone, Dagger, AppAuth, Abto Sip, RabbitMQ, Git, Jira, Confluence
Two or more android developers on the same project. 
Code review as mandatory part of a development process.
Usage of an issue tracking system.
Time for R&D if it's needed.
Interesting project, new technologies and other things everyone dreams about.
Prefer long term projects.