Position: Senior Android Developer (TL)
Category: Android
English level: upper
Years of experience: 9

WeAreBrain (Ukraine)
Built the NDA project that provides innovative tech solutions focused on functional fitness and wellness for the body, mind, and spirit;
Created custom player based on animations with a timer and controls to skip or repeat current element;
Provided a technically correct solution for architecture based on requirements;
I Built complex and smooth UI by guidelines with a reusability 

Azinec LLC (Hungary / Ukraine)
Refactored and maintained health-care application;
Created from scratch side-scroller/action game Flying Adventure for Android & iOS;
Created from scratch two time-killers: Meteor Dodge and LOB for Android & iOS;
Setup and implemented Data and Crash Analytics;
Built simple and beautiful weather application that shows only important for you information without a mess;


Achievements:
— Developed a user tracking system based on short periods to integrate machine learning and solve the problem with the airport queue.
— Developed a recognition system for bar codes on cardboard of different colours to integrate this functionality into the official Heineken app
— I’ve developed a system for scanning mobile operators' networks to detect “offline zones” and a set of utilities for Ukrainian Cyber Police, for tracking offences and quick calling 112 (Ukrainian 911).
— Started teaching the younger generation how to code and grew a community (Vlog on Youtube + Articles on Medium.com)
— Almost every app I developed has 100M+ downloads
In general, I have many projects I've done (20-ish) but here is a most interesting:

1. CURRENT COMPANY
— Technical Lead for 28 Android devs: created matrix of competency, organised recurring team meetings to share the knowledge, organised performance review process and been responsible for the performance review process. 
knew. Created my own approach to how to grow developers. 
— Mentoring / Building a mentor-mentee system
— Developed a social messenger application for the UAE marketplace (solved RTL UI issues, created a custom view to solve dynamic group call UI changes, bugfix, performance improvements and support)
— Team Lead for Fintech with 100k DAU (android devs: 15 / global team up to 300)
— Making architectural decisions
— Developed an easy-to-scale system
— Refactoring and Delivering new features
— Investigating security issues
— Working in a support or consulting relationship with customers
— Data analysis, code diff analysis, version control management;
— Since 2023: tech leading a project related to EVs and charging stations.  

2. Widr (France / USA)
— Leaded Android development within all projects around Widr;
— Developed Widr: Local Referral Network application based on a new way to search and publish work on the internet through your contacts. Widr transforms your phonebook into a referral network. By Invitation Only;
— Developed Widr: Legal - offers many tools specifically designed for lawyers, designed for people looking for the right attorney all over the US and Europe;
— Created Widr UI SDK with custom widgets we used between projects;

3. Lufthansa Systems (Hungary)
— Leaded Android Development into the team;
— Built a Software Development Kit for tracking and analyzing user movement inside airports to integrate machine learning to solve the problem with the queue;
— Implemented a Neural Network into SDK;
— Built a data layer for low-level interaction with native devices sensors;
— Analyzed tracked data;
— Refactored core from JavaRX to Kotlin Coroutines;

4. Heineken (Netherlands)
— Created a System Recognition SDK for scanning barcodes and QR codes on cardboard with different codes;
— Created a custom widget to animate scanning effects;
— Setup and implemented OpenCV module into the SDK;
— Setup and implemented CMake module to handle C++ code;
— Helped to develop and test OCR on C++ as a special recognition module;

5 і 6 пункт буде в досягненнях, бо тут не вистачає місця.
I don't want to work with Flutter;
I don't want to develop 'Video players';
I don't want to work with RX (but might be discussed.)