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senior
Registration: 20.02.2025

Oleksandr Levak

Portfolio

‎Evolve: Meditation & Wellness

● Connect with wellness leaders for private and group sessions in a variety of evolutionary modalities such as coaching, breathwork, meditation, yoga, sound, energy healing, astrology, and hypnotherapy.

Save The Pirate! Help! Escape!

● Save the Pirate is the most intricate puzzle game especially for logic game lovers!

Find Differences Prison Escape

● Spot the Difference: Prison Escape - The Best 2020 Hidden Objects Puzzle App! Find the Difference Online!

Quiz: Guess Who is the Star

● Quiz: Guess Who is the Star - the best movie actor quiz of 2021!

Skills

Expo
Firebase
Google Cloud Platform
GraphQL
Jest
MobX
React
React Native
Redux
Typescript

Work experience

Senior Mobile Developer
2023 - 2025 |Mauris
: React Native, Firbase, Redux-Toolkit, Typescript, Expo, MobX, React Native Animated, Google Cloud Platform, Socket.IO, Reactotron
● Team Management: Managed the development team for effective collaboration. ● Performance Optimization: Improved application performance for better usability. ● Mobile Support: Maintained and supported existing mobile applications. ● App Development: Created new mobile applications from scratch. ● Code Quality: Wrote unit tests to ensure code reliability. ● Cloud Integration: Added Google Cloud services for speech and authentication. ● Real-Time Communication: Implemented Socket.IO for real-time features.
Mobile Developer
2021 - 2023 |Mauris
React Native, Firbase, Typescript, Hasura, Apollo GraphQl, Postgres, Expo, Qonversion, AppLovin, IronSource, MobX, Redux-Saga
● Full-Stack Support: Worked on React, React Native, and Hasura projects. ● Payment Systems: Integrated Stripe for seamless payments. ● Subscriptions: Added subscription models via Qonversion. ● Advertising: Integrated SDKs like IronSource and AppLovin.
Frontend Developer
2020 - 2021 |Mauris
React Native, React, Next, Redux, Redux-Thunk, Lottie Animation, Facebook, Amplitude, Firebase
● Mobile Application Support: Maintained and supported existing applications. ● Game Porting: Ported mobile games to React Native Web. ● Game Development: Created new mobile games from scratch. ● Web Application Development: Supported and enhanced web applications. ● Analytics Integration: Implemented tools like Facebook, Firebase, and Amplitude.

Educational background

Information Technology (Bachelor’s Degree)
2019 - 2023
National Technical University of Ukraine "Kyiv Polytechnic Institute"

Languages

EnglishIntermediate