Logo
Vladyslav – Kotlin, Java, Coroutines, experts in Lemon.io

Vladyslav

From Ukraine (GMT+3)

flag
Mobile DeveloperSenior
Hire developer
10 years of commercial experience
Consumer services
Fashion
Hospitality
Logistics
Manufacturing
Music and audio
Retail
Transportation
CRM
Mobile apps
Lemon.io stats

Vladyslav – Kotlin, Java, Coroutines

Vladyslav is a Senior Mobile Developer who, during the vetting process at Lemon.io, showcased strong proficiency in Kotlin, Coroutines, and Networking. He also demonstrated a solid understanding of Clean Architecture principles and excellent communication skills. Previously, Vladyslav led the development of multiple projects and created applications for fashion retailers, music devices, hospitality, and more!

Main technologies
Kotlin
5 years
Java
8 years
Additional skills
Coroutines
REST API
Android SDK
MVVM
Android Studio
Android
Unit testing
Jetpack Compose
Ready to start
ASAP
Direct hire
Potentially possible

Ready to get matched with vetted developers fast?
Let’s get started today!Hire developer

Experience Highlights

Senior Android Developer
Apr 2023 - Oct 20241 year 6 months
Project Overview

An all-in-one super app operating in the Middle East, simplifying daily tasks such as transportation, food and grocery delivery, and payment management. It stands as the most successful tech startup in the MENAP region (Middle East, North Africa, and Pakistan).

Skeleton
Skeleton
Skeleton
Responsibilities:
  • Led end-to-end development of an internal startup project, overseeing phases from ideation to release, enhancing product engagement and overall impact;
  • Executed and launched a sub-project across multiple regions, optimizing localization and compliance, expanding user reach, and increasing market penetration.
  • Improved flexibility in the flagship project by implementing server-driven UI, reducing development time for future features, and enabling dynamic content updates.
  • Mentored junior developers by establishing coding standards and best practices, resulting in elevated code quality and consistent project performance.
Project Tech stack:
Android
Java
Kotlin
Coroutines
Jetpack Compose
Dagger
Hilt
Lead Android Developer
Jul 2020 - Apr 20232 years 8 months
Project Overview

Android applications designed for the restaurant industry, covering a range of features, such as loyalty programs, payments, and delivery services, aimed at enhancing customer experience and business operations.

Skeleton
Skeleton
Skeleton
Responsibilities:
  • Led a team of 3 Android engineers in developing Android apps for restaurant services, including loyalty programs, payments, and delivery;
  • Coordinated with cross-functional teams (product, backend, design) to ensure cohesive and efficient project delivery;
  • Enhanced the Android framework used across 10+ applications, contributing to its support and continued development;
  • Developed a Kotlin Multiplatform framework, enabling shared code and reducing development overhead for cross-platform solutions;
  • Built multiple SDKs for backend integrations, widely adopted by other teams to standardize app-to-service communications;
  • Migrated architecture and dependencies, including a shift from RxJava1/2 to Kotlin Coroutines, Dagger2 to Hilt, and from a multi-activity to a single-activity model, improving app maintainability and performance.
Project Tech stack:
Android
Java
Kotlin
RxJava
Dagger
Hilt
Jetpack Compose
Coroutines
Senior Android Developer
May 2022 - Apr 202310 months
Project Overview

A British global fashion retailer loved by customers for over 50 years and committed to sustainability, with 50% of its clothing line featuring eco-friendly attributes. In 2023, the company recorded an impressive 225 million visits to its website and mobile app.

Skeleton
Skeleton
Skeleton
Responsibilities:
  • Redesigned and optimized app architecture using Jetpack Compose and the MVI architecture, enhancing performance and maintainability;
  • Implemented multi-modular architecture, reducing build times and facilitating better scalability for future enhancements;
  • Migrated dependency management from Dagger2 to Hilt, streamlining app performance and improving development efficiency;
  • Developed and executed UI/instrumentation tests to ensure functionality, increasing test coverage and app reliability.
Project Tech stack:
Android
Java
Kotlin
Dagger
Hilt
Coroutines
Jetpack Compose
Senior Android Developer
Mar 2018 - Jul 20202 years 4 months
Project Overview

Android applications designed to control Bluetooth audio devices, such as speakers and headphones, enabling users to adjust settings, and customize audio preferences directly from their smartphones.

Skeleton
Skeleton
Skeleton
Responsibilities:
  • Developed and integrated custom SDKs for popular music services (e.g., Deezer, Spotify, Amazon, TuneIn), expanding app functionality for Bluetooth devices;
  • Led a complete refactoring and migration from MVP to MVVM architecture, improving codebase scalability;
  • Built a Bluetooth/BLE SDK, used across multiple device projects, streamlining Bluetooth interactions and enhancing device compatibility;
  • Implemented integration tests to handle complex Bluetooth interactions, reducing testing time and increasing stability.
Project Tech stack:
Android
Java
Kotlin
RxJava
RxAndroid
MVP
MVVM
Bluetooth
BLE
Koin
Dagger
Full-Stack Developer
Sep 2016 - Mar 20181 year 6 months
Project Overview

A comprehensive CRM system developed to streamline company operations for a leading German manufacturer of professional building paints, later expanding its capabilities to support 5 international branches within the company group.

Skeleton
Skeleton
Skeleton
Responsibilities:
  • Developed a comprehensive CRM system;
  • Built and launched a client Android app for the CRM system, enabling seamless mobile access for users;
  • Led a team of 2 developers, overseeing project milestones and ensuring quality deliverables;
  • Integrated multiple third-party systems (ERP, electronic document management, Telegram bots), enhancing platform functionality and interconnectivity.
Project Tech stack:
PHP
JavaScript
Backbone.js
Zend Framework
Android
Java

Education

2019
Software Engineering.
Master's
2018
Computer science
Bachelor's

Languages

English
Advanced

Hire Vladyslav or someone with similar qualifications in days
All developers are ready for interview and are are just waiting for your requestPlace a free quotedream dev illustration
Copyright © 2024 lemon.io. All rights reserved.