Lev is available for hire
Hire LevLev Nazarov
Verified Expert in Engineering
Coroutines Developer
Tbiltskaros Dasakhleba, Kvemo Kartli, Georgia
Toptal member since May 5, 2021
Bio
Lev is a passionate Android developer with five years of experience who loves state-of-the-art technologies. He developed crucial features for a super app with over ten million users, increasing engagement by 10% on the checkout page, and built a navigation app ranked number one on Google Play. Lev enjoys teaching others, creating business solutions, and seeing his code making peoples' lives better.
Portfolio
Toptal Client Project
Android, Java, Kotlin, Unity3D
VisualBlasters LLC
Android, Kotlin
Post Technologies
Android, Testing, Kotlin, Mobile
Experience
Availability
Part-time
Preferred Environment
Android Studio, Slack, MacOS, GitHub, GitLab, GitLab CI/CD
The most amazing...
...app I've developed helps people navigate in large cities and is ranked number one on Google Play.
Work Experience
Android Developer
2022 - PRESENT
Toptal Client Project
- Developed a meditation app implementing a Unity project with Forum (social micro-network), Achievements, and other features using a lot of gamification.
- Ensured the project could be opened on any device and usable by people with accessibility settings activated.
- Implemented billing and supported various user flows inside the app.
Technologies: Android, Java, Kotlin, Unity3D
Senior Android Developer
2021 - 2022
VisualBlasters LLC
- Developed crucial features in the drawing application with over 50 million users.
- Migrated to multi-module Clean Architecture and from Java to Kotlin.
- Prepared a release that overhauled everything inside the application.
Technologies: Android, Kotlin
Android Team Lead
2020 - 2022
Post Technologies
- Developed several features for a super app, helping people get their deliveries in time and be able to send them contactless.
- Increased user engagement by 40% and increased turnout by 30%.
- Rewrote an eCommerce app from scratch and led a team of contractors to create features.
Technologies: Android, Testing, Kotlin, Mobile
Software Developer Engineer
2020 - 2020
Microsoft
- Supported additional release snapshots for service as a business CI product, increasing the number of supported devices by 1,700 physical phones.
- Assisted online 24/7 to resolve clients' issues with CI pipelines. Guided them in making tests into valid test cases.
- Supported internal tooling for Android devices required for custom and device-specific CI scripts.
Technologies: Kotlin, Swift, Xamarin, Android, iOS, Go
Senior Android Developer
2020 - 2020
Wildberries
- Developed an app in travel commerce, helping people book air flights and hotels.
- Created an app that helped workers on-site structure their day, get paid for work done, and work from any warehouse within CIS.
- Supported a super app with over ten million users. Developed crucial features and increased user engagement by 10% on the checkout page.
Technologies: Android, Testing, Kotlin, Mobile, eCommerce
Android Developer
2017 - 2020
Involta
- Created an app to help people navigate in huge cities which ranked number one in Google Play.
- Developed a B2B secure messenger used by several bank departments in a local region.
- Taught several interns and helped them become junior developers, many of which have gone above and beyond working in fintech.
- Created an app for local universities to keep focused on their study processes. This helped professors stay connected with students.
Technologies: Android, Maps, Encryption, Kotlin, B2B
Experience
Microsoft AppCenter
https://appcenter.ms/A software-as-a-service product that allows customers to run Appium, Xamarin, Native tests on real devices located in data centers. I was supporting Android services and developed tooling located on the devices to perform specific actions.
Russian Post
https://play.google.com/store/apps/details?id=com.octopod.russianpost.client.androidA native Android super application. I led a team of contractors in creating several major eCommerce features for the main application, built features to increase conversion, and helped a team of quality assurance specialists to set up a state-of-art testing environment and CI.
Wildberries Travel
A native Android application. I increased conversion rates, developed features such as the dark theme, payment with Google and Huawei Pay, tours to local regions. I set up CI and wrote tests, getting 50% test coverage to approximately 80% or so, while decreasing the crash rate to 99.5%.
Involta Metro
https://play.google.com/store/apps/details?id=ru.involta.metroA native Android application. I led a team of four developers, created the map itself, experimented with 3D graphics in WebView, and figured out phone performance grades to increase UI fluidity and users' satisfaction.
Involta Messenger
https://involta.work/A native Android app that enables internal communication for business clients with end-to-end PGP encryption. I led a team of up to four developers creating internal critical features such as custom encryption and networking modules.
Wildberries
https://www.wildberries.ru/A native Android app enabling customers to purchase goods from sellers around the world. On this project I supported several features and set up CI, allowing me to track down dozens of difficult-to-reproduce bugs.
Wildberries Job
https://play.google.com/store/apps/details?id=ru.wildberries.team&hl=en&gl=USA native Android app that allows people to apply for a job and work through this app. I've been supporting this app and created features such as a birthday service, document management, applying for job options, and choosing the warehouse location out of which to work.
Education
2016 - 2020
Bachelor's Degree in Software Engineering
Ivanovo State University - Ivanovo, Russia
Skills
Tools
Android Studio, Android Jetpack, Slack, GitLab, GitHub, GitLab CI/CD
Languages
Kotlin, Java, Swift, Go
Frameworks
Android SDK, Unity3D
Platforms
Android, Mobile, MacOS, Linux, Xamarin, iOS
Paradigms
Testing, B2B
Other
Coroutines, Jetpack Compose, Software, QA Testing, Maps, Encryption, eCommerce
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