Daria is available for hire
Hire DariaDaria Ryazhskikh
Verified Expert in Engineering
Software Developer
Location
Tallinn, Estonia
Toptal Member Since
September 3, 2015
Daria is a skilled and experienced mobile software developer, having developed native Android applications for over ten years. She is dedicated, reliable, and efficient. Daria knows the best practices in mobile development and can organize the development process.
Portfolio
Unreel (via Toptal)
BrightScript, Roku, Kotlin, Android
DevPocket
Java, Android SDK
i-Free
Java, Android SDK
Experience
Availability
Part-time
Preferred Environment
Git, Android Studio
The most amazing...
...feature I've developed for Android was something that generated video from frames and a sound file.
Work Experience
Android Developer
2016 - 2018
Unreel (via Toptal)
- Developed a platform for quickly creating branded Android applications with video content.
- Integrated ExoPlayer.
- Implemented casting to Chromecast.
- Developed a circular list UI component.
- Developed a similar platform for Roku.
Technologies: BrightScript, Roku, Kotlin, Android
Android Developer
2012 - 2015
DevPocket
- Developed several client-server Android applications from scratch.
- Created a useful library of Android tools and wrote documentation for it.
- Implemented a media streaming playback and caching engine with JellyBean Media API.
- Implemented Android View for showing SVG paths.
- Implemented ListView with horizontal scrolling.
- Researched WiFi direct API to find out if it is possible to develop an iOS-Android chat app with it.
- Worked remotely for 2 years.
Technologies: Java, Android SDK
Senior Android Developer
2011 - 2012
i-Free
- Worked in the Everfriends voice-driven assistant team.
- Designed and developed for the application's core and plugin system.
- Implemented text-to-speech functionality via Google TTS, Loquendo, and SVOX.
- Implemented integrations to social services (publishing to Facebook, YouTube, Vkontakte, Odnoklassniki, and Renren).
- Contributed to widget development.
- Implemented a feature to generate video from frames and sounds via FFmpeg.
Technologies: Java, Android SDK
Android Developer
2010 - 2011
Injoit
- Implemented an application for streaming videos for children.
- Started working with the FFmpeg library and wrote an article about how to link it to an Android project (in those times it was pretty difficult).
- Implemented video publication to Facebook and YouTube.
- Implemented a nice quiz view.
- Worked remotely.
Technologies: Java, Android SDK
Junior Researcher
2009 - 2011
Hydrotex
- Worked on the system for estimation of concrete abrasion of hydrostructures.
- Contributed to the development of a mathematical model.
- Developed the calculation application.
- Developed a utility for visualizing concrete abrasions.
Technologies: Windows Presentation Foundation (WPF), .NET
.NET Developer
2008 - 2008
FarPost
- Worked on a web statistics service, mostly maintaining its interface.
- Organized Selenium auto-testing.
Technologies: .NET, Microsoft, ASP.NET
Delphi Developer
2006 - 2008
G.I. Nevelskoy Maritime State University, Vladivostok
- Contributed to the development of a data processing system for education control, as a unit for the dean’s office.
- Developed a web application for university chairs to register students’ interim results.
Technologies: Microsoft SQL Server, Delphi
Experience
FullGlass
https://apkpure.com/fullglass/com.getfullglassA client app for viewing venues in NYC and getting free drinks. Uses a back-end on Parse.com, deep linking features from Branch.io, and billing from Stripe.
Drive2
An Android client for the DRIVE.NET portal. Offers basic functions of the car community, including viewing news feeds, reading and commenting on user posts, creating posts and photo reports, viewing car and member profiles, etc. Also contains a simple messenger.
Drive
An application for DRIVE.NET. Offers car news feed, commenting, bookmarking, and sharing posts. Also has nice voting features.
Direct/ADVERT
An Android client for an advertising system. Shows different statistics, expenses, and incomes of ad campaigns for advertisers and partners.
RussiaSport
An Android client for RussiaSport.ru. Viewing sport news, photo galleries, and events schedule, and streaming video translations.
Enloca
An Android client for finding discounts in different venues in St. Petersburg. It tracks the user's position, looking for nearby venues and showing barcodes and details for discounts.
Multimedia Platform for Unreel.me
A codebase for creating customized Android applications with video content. With this platform, building an application with its own resources and content takes less than an hour. About 15 applications based on this platform are now published. The link refers to the first one.
Skills
Languages
Java, Delphi, Kotlin, BrightScript, HTML, C#
Frameworks
Android SDK, .NET, Windows Presentation Foundation (WPF), ASP.NET, Selenium
Libraries/APIs
GSON, Retrofit, Volley Android Library, Google Maps SDK, Parse SDK, Mixpanel Android API, Fresco, Joda-Time, Flurry, Picasso, VK API, Facebook API
Tools
Android Studio, Gradle, Crashlytics, Git, Branch.io, Aviary, Eclipse Memory Analyzer, Android NDK
Platforms
Android, Oracle, Microsoft
Storage
SQLite, Microsoft SQL Server
Other
Roku, Stripe Payments, OkHttp
Education
2002 - 2007
Specialist's Degree in Applied Mathematics
Far Eastern State University - Vladivostok, Russia
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