Logo
Omer – Kotlin, Android, Java, experts in Lemon.io

Omer

From Turkey (GMT+3)

flag
Mobile DeveloperSenior
Hire developer
9 years of commercial experience
Apparel
Banking
Cryptocurrency
Customer support
E-commerce
Logistics
Transportation
Mobile apps
Lemon.io stats
1
projects done
266
hours worked
Open
to new offers

Omer – Kotlin, Android, Java

Omer is a senior software engineer focused on mobile development. Throughout his career, Omer has successfully developed and maintained over 20 projects, and for nearly three years, he managed 20+ Android developers and oversaw 15+ projects. While his expertise primarily lies in fintech and e-commerce applications, Omer's rich experience will make him a valuable team member on any project.

Main technologies
Kotlin
5 years
Android
8 years
Java
7 years
Additional skills
Swift
iOS
Dagger
REST API
MVVM
MVP
MVC
Koin
GraphQL
Hilt
Coroutines
RxJava
RxAndroid
Unit testing
Firebase
Jetpack Compose
Flutter
Ready to start
ASAP
Direct hire
Potentially possible

Experience Highlights

Senior Android Engineer
Dec 2022 - Ongoing1 year 7 months
Project Overview

A fitness apparel and accessories brand.

Skeleton
Skeleton
Skeleton
Responsibilities:
  • Worked as an Android Developer on a training application, focusing on developing high-quality code to improve the overall functionality and user experience.
  • Developed and executed Unit, Snapshot, Regression, and Design tests, contributing to the development of a bug-free and robust application. Collaborated closely with the QA team to ensure adherence to project requirements and high-quality application development.
  • Worked closely with the product management team to define and refine product requirements, ensuring alignment with project goals and client expectations.
  • Utilized Agile methodology, actively participating in daily stand-ups, sprint planning, and retrospectives to ensure efficient project execution.
  • Contributed to the development of Gymshark Training and Fitness app.
Project Tech stack:
Kotlin
Android
Unit testing
Senior Android Engineer
Sep 2022 - Feb 20234 months
Project Overview

The company is creating the next generation of last-mile logistics by unlocking the transformative power of drone delivery for enterprises, all from your smartphone or tablet.

Skeleton
Skeleton
Skeleton
Responsibilities:
  • Developed and maintained three Android applications for drone operations, including request, delivery, and autopilot control functions.
  • Implemented software updates and bug fixes to ensure the reliable performance of the applications.
  • Worked closely with the drone team to understand user requirements and enhance the functionality of the applications.
  • Conducted thorough testing and debugging of the applications to ensure they were stable and user-friendly.
  • Maintained comprehensive documentation of the applications, including design specifications, coding standards, and user manuals.
Project Tech stack:
Java
Android
Firebase
Lead Android Engineer
Mar 2020 - Jan 20232 years 9 months
Project Overview

A digital product development company. They have 15 clients focused mostly on e-commerce, digital banking & cryptocurrency, and social platforms.

Skeleton
Skeleton
Skeleton
Responsibilities:
  • Led a team of 20+ Android developers responsible for developing and maintaining various Android applications. Conducted code reviews, gave feedback, and provided guidance on architectural principles and best practices.
  • Developed SDKs and Android plugins to enhance development efficiency, increase code security, and improve maintainability.
  • Worked as an Android developer in a large fintech application with a team of developers, testers, and project managers. Participated in code reviews, gave feedback, and taught about architectural principles.
  • Worked as an Android developer in a large team responsible for maintaining Turkey's one of the largest e-commerce Android platform. Worked with the team following Agile methodologies to deliver new features, fix bugs, and ensure that the application was stable and secure.
  • Developed an Android application for booking on-demand or scheduled dog walks from scratch, using Kotlin. Implemented features such as real-time booking and scheduling, user profiles, and payment processing.
  • Contributed to the development of various projects including: TOM Pay (Fintech), Migros (E-Commerce), PawsApp (Dog Care), Nefis Yemek Tarifleri (Recipes).
Project Tech stack:
Kotlin
Java
Android
MVVM
Senior Mobile Engineer
Feb 2019 - Mar 20201 year 1 month
Project Overview

One of the largest companies that provide loyalty solutions.

Skeleton
Skeleton
Skeleton
Responsibilities:
  • Acted as a developer responsible for maintaining multiple e-commerce and loyalty applications, ensuring their functionality and performance met the company's standards.
  • Led the refactoring effort for a large e-commerce project, migrating the codebase from Java to Kotlin and implemented the Model-View-ViewModel (MVVM) design pattern to improve code organization and maintainability.
  • Worked as a developer to implement various payment systems for e-commerce and other applications and integrated third-party payment APIs to enable secure and seamless transactions for users.
  • Contributed to the development of various projects including: Tıkla Gelsin (E-Commerce), Pınar Su (E-Commerce), Yeep (Customer Loyalty), Volvo Car Prime (Customer Loyalty), BJK (Customer Loyalty).
Project Tech stack:
Kotlin
Android
Java
iOS
Swift
MVVM
MVP
MVC
Mobile Engineer
Feb 2018 - Jan 201911 months
Project Overview

A software house that provides GPS-based mobile applications. It has one of the biggest Taxi booking services in Turkey.

Skeleton
Skeleton
Skeleton
Responsibilities:
  • Designed and developed an Android Advertisement SDK using Kotlin, which was integrated into a Kiosk application running on Android tablets.
  • Utilized the Advertisement SDK to deliver targeted advertisements to users, resulting in increased revenue for the business while working on the Taxi Booking project.
  • Contributed to the development of a Taxi Booking project and worked with the Android development team to implement new features, fix bugs, and improve the overall user experience.
  • Worked as a developer on a digital assistance application for women, implementing various features to improve the user experience and collaborating with the design team to ensure that the application's UI and UX were consistent with the company's branding and standards.
  • Contributed to the development of various projects, including PepApp (Digital assistance for Women), Taxi 7x24 (Taxi Hailing Service - Client & Kiosk Applications), and Gentlemen App (Android SDK - Advertisement Service).
Project Tech stack:
Java
Kotlin
Android
MVVM
Git
Mobile Application Developer
Jun 2016 - Feb 20181 year 7 months
Project Overview

A software house mostly developing mobile and web applications for delivery platforms.

Skeleton
Skeleton
Skeleton
Responsibilities:
  • Developed iOS cryptocurrency app in Swift, with real-time market data, transaction history, and integrated exchanges/wallets for seamless investment management.
  • Designed and developed an Android application from scratch, using Java, that identifies incoming phone calls and displays the caller's name and photo.
  • Managed the development of several GPS-based delivery applications for couriers on the Android platform.
  • Maintained and updated existing applications to ensure they remained functional and up-to-date with the latest features and technologies.
  • Contributed to the development of various projects including: Coiny (Cryptocurrency Exchange), PaketTaxi (Delivery Service), JetFix (Customer Service), Falbella (Fortune Teller), Kimo (Caller ID), and Servisim Yolda (School Service Management).
Project Tech stack:
Java
Android
MVP
Git
Swift
iOS

Education

2018
Computer Engineering
Bachelor's Degree

Copyright © 2024 lemon.io. All rights reserved.