About Iuliia
Senior Android Engineer | Fintech & E-commerce | Munich-based
I am a Senior Android Engineer with 10+ years of experience specializing in high-performance mobile applications. Based in Munich, I help companies build scalable, production-grade Android solutions with a focus on Fintech and E-commerce.
Core Expertise:
- Android Stack: Kotlin, Jetpack Compose, Coroutines, Flow.
- Architecture: Clean Architecture, MVVM, MVI, Dependency Injection (Hilt, Dagger).
- Scalability: Experience with apps serving millions of active users (thinkorswim, Wildberries).
- Full Cycle: From architectural design and custom SDK integration to Google Play release management.
Selected Project Highlights:
- thinkorswim (Fintech): Shipped core features for a top-rated trading app with 1M+ downloads. Focused on real-time data visualization and complex risk-profile tools.
- Wildberries (E-commerce): Built native and cross-platform components for one of Europe's largest retail platforms, ensuring stability under extreme high-load.
How I work:
I take full ownership of features or entire modules, from initial design to final release. Whether you need to migrate a legacy app to Jetpack Compose or build a new Fintech product from scratch, I ensure clean, maintainable code and timely delivery.
Available for:
- Full-time or part-time freelance contracts
- Remote projects or on-site engagements in Munich
- English (Fluent), German (Basic), Russian (Native)
Russian
Native or bilingual
English
Fluent
German
Basic
Can work on-site
Munich (up to 20km)
Experience
- Devexperts GmbHAndroid Developer · thinkorswim (TD Ameritrade)TECHOctober 2018 - October 2025 (7 years)Munich, GermanyWorked on thinkorswim, a large-scale financial trading application with over 1M downloads on Google Play, as part of the core Android team.
- Implemented Risk Profile and Chart Crosshair features end-to-end
- Implemented positions grouping logic, aggregating trading data by configurable parameters
- Built and owned BottomSheet-based Switch Account flow in Jetpack Compose
- Migrated UI screens to Jetpack Compose following modern Android architecture practices
- Triaged and resolved production bugs reported via Google Play Console
- Debugged and resolved client-server communication issues, analysing requests and responses to fix integration bugs
- MobilityLabAndroid DeveloperDIGITAL AND ITJanuary 2017 - May 2018 (1 year and 4 months)Moscow, RussiaContributed to WorksPad X, an enterprise mobile solution for secure corporate communication and document management, during an architectural rewrite of the application.
- Implemented local data persistence and database logic using SQLite
- Built and maintained UI components across the application
- Worked with Retrofit and OkHttp for backend networking as part of the architecture migration
- Implemented dependency injection using Dagger
- Wrote unit tests to improve reliability
- WildberriesMobile Application DeveloperE-COMMERCEOctober 2015 - December 2016 (1 year and 2 months)Moscow, RussiaContributed to a large-scale e-commerce application serving millions of users, working across two technology stacks as the team migrated from Cordova to Xamarin.
- Implemented product filtering logic in the Cordova-based application
- Built custom renderers and platform-specific controls for Android in Xamarin
- Contributed to core business logic for shopping flows and user interactions
- As part of a separate project, brought the native Android courier app from development to release-ready state, supporting both phones and tablets
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Education
- Master of Engineering (MEng)National Research Nuclear University MEPhI2011Specialized in software engineering fundamentals: programming languages, computer networking, and database systems.