Іван

Ivan Yakoviv
Flutter Developer | Cross-Platform Expert
Location: Ukraine | Email: [open contact info](look above in the "contact info" section) | Phone: [open contact info](look above in the "contact info" section)
LinkedIn: [open contact info](look above in the "contact info" section)
GitHub: https://github.com/TheIvasyl

PROFESSIONAL SUMMARY
Senior Mobile Engineer with over 8 years of experience, including 4+ years specialising in
Flutter and 4+ years in native Android (Java/Kotlin). Expert in architecting scalable cross-
platform solutions using BLoC, Redux, and Clean Architecture. Proven track record of
integrating enterprise-level systems like Salesforce and building real-time applications using
WebSockets. Skilled in driving revenue growth through data-driven A/B testing and
automating delivery with modern CI/CD pipelines.

TECHNICAL SKILLS
• Flutter Expert: Dart, BLoC, Redux, Get, State Management, Custom Widgets, Method
Channels, Navigator 2.0

• Native Foundation: Android (Kotlin, Java, Jetpack), iOS (Swift basics), Native
Interoperability

• AI Tools: Claude Code, Codex, Antigravity CLI, Copilot, Ollama

• CI/CD: GitHub Actions, App Store Connect, Google Play Console

• Testing & Quality: Unit Testing, Widget Testing, Integration Testing, Flutter Inspector

• Integrations: Salesforce REST API, Firebase (Remote Config, A/B Testing, Analytics,
Crashlytics, FCM), AppsFlyer, Amplitude, Google Maps, WebSockets

• Architecture: Clean Architecture, SOLID Principles, OOP, MVC, MVP, MVVM, Design
Patterns.

PROFESSIONAL EXPERIENCE
Zutobi | Flutter Developer Feb 2024 – Present

Zutobi is a premier EdTech platform for driver education. Developed high-traffic features for
DMV permit test preparation.

• Architected core learning features using BLoC and Redux to enhance user engagement
and retention.

• Spearheaded A/B testing initiatives using Firebase to optimise conversion rates and
revenue monetisation.

• Automated deployment workflows with CI/CD tools, significantly reducing release
overhead and build errors.

• Managed technical refinements and mentored junior engineers on code quality and
Flutter best practices.

IQVIA OCE | Flutter Developer Jul 2021 – Jan 2024

CRM platform for pharmaceutical sales, focusing on complex Salesforce integration and real-
time data synchronisation.

• Developed a robust Salesforce data connector, enabling real-time access to OneKey
databases.

• Refactored legacy UI into a reusable widget, increasing development velocity by 30%.

• Resolved complex platform-specific issues across iOS and Android to maintain feature
parity.

• Integrated Salesforce REST API to ensure secure and efficient enterprise data
exchange.

AbbVie & Abbott | Android Developer Sep 2019 – May 2021

Healthcare ecosystem applications focused on clinical nutrition and patient monitoring.

• Optimised data structures for patient risk assessment tools using Android SDK and
Jetpack.

• Implemented secure synchronisation layers using the Salesforce SDK for healthcare
tracking.

• Modularised large-scale legacy codebases to improve maintainability and security
standards.

Customertimes / Blipic | Mobile Developer Feb 2020 – Mar 2021

• Delivered a Loyalty Management B2C application MVP from inception using Flutter with
BLoC.

• Developed custom Android libraries for optimised API communication with Salesforce.

• Implemented real-time geolocation tracking using Google Maps API for HR management
systems.

eTachki / anyCars | Android Developer Mar 2017 – Oct 2018

• Developed a real-time car auction system using WebSockets for high-concurrency
updates.

• Architected a multi-flavour build system to support diverse market requirements in
Ukraine and Poland.

• Collaborated with backend teams to optimise API response times for auction traffic.

EDUCATION
Master’s Degree in Cybersecurity
National Aviation University

LANGUAGES
English: Full Professional Proficiency | Ukrainian: Native