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Flag of Ukraine Kharkiv, Ukraine
Member since May 26, 2020
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I am a Senior Software Engineer working on Varieties of technology included Artificial Intelligence, Machine Learning, Deep Learning, Fintech, NLP, Neural Network, Bid data process and etc. As for software development, I am eager to provide native mobile apps(Android and iOS) as well as cross-platform apps(ReactNative/Phonegap/Sencha/Ionic/Angular/Flutter). I am also familiar with server-side technologies(Python/PHP/Node/C#/.NET Core/Ruby mostly) as well as APIs for apps. I have over 7 years of experience leading the design, development, and launch of 80+ custom software application development and enjoying every bit of it. Though I have worked on different technologies but found my passion for doing the mobile niche. I am well versed in Swift, Objective c, xCode using collaborative tools like Jira, Git, Asana, etc. My Experienced Industry: Productivity, Fintech, Medtech, Health & Fitness, Sports, Utilities, Education, Games, Music, Books, Business, Lifestyle, Reference, Shopping, News, Navigation, Photo & Video, Food & Drink, Social Networking, Entertainment... Looking to work on exciting opportunities and learn something new! Key Research: Python/Django/Flask/Numpy/Keras/Falcon/Pandas/Pytorch/ Node.js/Express/Meteor/Sails.js/MySQL/MSSQL/MongoDB/Neo4j/PostgreSQL/NoSQL/AWS/Firebase/Azure/Docker/C#/.NET Core/ASP.NET / ASP.NET MVC /Delphi/Golang/Java/Android/Swift/iOS/React Native/Flutter/Ionic/PhoneGap/Cordova/ARkit/MapKit/Crytocurrency/Blockchain/Online Payment/API
$40 USD/hr
1 review
  • 100%Jobs Completed
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  • 100%On Time
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Portfolio Items

Recent Reviews

  • image of Rafael F. Project for Denis K. €50.00 EUR

    “Great work done. Absolutelly recommended, and super profissional.”


Team Leader, Software Engineer.

Jul 2017 - Jul 2019 (2 years)

-Built iOS clienteling apps for multiple high-end fashion brands, to be used by sales assistants within the boutiques. -Designed and worked on RESTful APIs and back ends for mobile apps using Python. -Developed an Android app where users can create checkpoint-based racing tracks and compete with other users. -Built the app's UX/UI and navigation flows. -Built the app with Android 4 UI components, maintaining compatibility with 2.3 versions.

iOS Developer (Contract)

Jan 2017 - Apr 2017 (3 months)

-Developed the data model and the architecture of the app. -Built an interface for iBeacon communication. -Developed the logic and architecture of the events that should be generated by the interaction (location/proximity) of the user with the iBeacons. -Implemented all of the user Interaction/design of the app. -Implemented different algorithms to enhance the reliability of the iBeacons signal and its interaction with the apps events/logic.

Mobile Software Engineer (contract)

May 2016 - Nov 2016 (6 months)

-Brought many iOS and Android apps from concept to the App Store. -Created wireframes as well as redesigned and adapted existing apps to newer OS versions. -Designed and worked on RESTful APIs and back ends for mobile apps using Python. -Proposed technical and architectural solutions and improvements to existing tech stacks. -Used Agile methodologies and software management tools to work with teams across the world.

Senior Software Engineer

Jul 2015 - Feb 2020 (4 years)

-Served as the lead Mobile developer and software architect for all projects. -Created web services for mobile applications (Android/iOS) using Python/Django and ServiceStack. -Used Core Bluetooth framework for interaction with E-Scooter. -Developed a location-based social network -Integrated app with Stripe. -Created integration with Salesforce. -Created working offline mode and sync procedure for the app. -Introduced code review, coding standards, and clean architecture concepts.

Mobile App Developer

Nov 2013 - May 2015 (1 year)

-Developed an Android and iOS object tracker app that located external devices via Bluetooth. -Integrated with Parse Android lib, REST API, and cloud functions. -Implemented push notification and geolocation queries. -Adapted the app navigation flow and the UX/UI following Google's material design guidelines. -Implemented the authentication system, allowing both Facebook and email registration.


Master of Computer Application (M.C.A)

2005 - 2011 (6 years)

Bachelor's degree in Information Technology (B.I.T)

1999 - 2003 (4 years)


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