Станіслав

Stanislav Trachuk
Flutter Developer
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Flutter developer with experience building mobile and web apps in healthcare, AI, and consumer domains.
I take features from idea to production, work confidently with complex architectures, performance optimization,
and integrations. Delivered stable, reliable apps - including products used in clinical environments.
Strong in communication, planning, and collaborating with cross-functional teams.

PROFESSIONAL EXPERIENCE

Flutter Developer — North South Tech
02/2026 – Present
• Develop Flutter applications using gRPC for efficient client-server communication
• Integrated Firebase services
• Developed interactive mini-games using Flutter Flame
• Collaborated with Flutter developers and QA engineers in an agile team​
​
Flutter Developer — Orangesoft
06/2025 – 02/2026
• Implemented offline mode and synchronization
• Implemented tablet-optimized layouts and external display support (iPad, external monitors)
• Software development in compliance with HIPAA and GDPR
• Researched and evaluated data storage strategies for a medical application
• Consulted with surgeons and medical staff to make technical decisions
• Significantly improved application stability and performance - ensuring reliable operation during surgical procedures
• Improved rendering performance during instrument state updates by optimizing data formatting from the database to UI
structures, raising FPS from ~40 FPS to a stable 60 FPS

Flutter Developer — Nirvana Apps
07/2024 – 06/2025 (11 months)​
• Developed complex animations and custom visual effects​
• Closely collaborated with designer and backend developer
• Сar Play integration​
• Involved in API and design requirements planning​
• Set up analytics, release process, and git-flow
• Improved app stability - increased the crash-free rate to 99%
• Conducted R&D on AI API integration and optimization
• Optimized token usage - reduced consumption from 77,000 to just 2000 tokens per request without any loss in model
performance, significantly decreasing operational costs and speeding up processing

Flutter Developer — LYQX
09/2023 – 07/2024 (10 months)
• Published apps to App Store / Google Play
• Worked with store rejections and successfully resolved compliance issues.
• Developed mobile and web versions, integrated real-time chat
• Modularized shared logic and UI
• Planned architecture, integrated third-party services
• Conducted code review and refactoring
• Discussed and adjusted technical requirements
• Estimated and planned tasks
• Improved application security

Flutter Developer — KirnTech
03/2023 – 09/2023 (6 months)
• Implemented a unified UI-kit used across the entire application, reducing duplicated code by 3× and enabling faster
addition of new components
• Implemented modern navigation architecture and dependency injection
• Implemented application flavors for environment separation
• Added full light/dark theme support

CORE SKILLS

• Flutter, Dart, GIT, SOLID, DRY, OOP, Clean Architecture, CI/CD
• Drift, encrypted_drift, Hive, Shared Preferences, flutter_secure_storage
• BLoC, go_router, get_it, injectable
• Supabase, Firebase, REST, grpc, Dio, Gemini API, OpenAI API, Google Sign-In, Apple Sign-In, Health API (Apple), JWT Auth
• In app purchases, RevenueCat, AppsFlyer, Firebase (Analytics, Crashlytics), Notifications
• Lottie, Flutter Animation API, CustomPainter, Flame, Fragment Shader
• GitHub, GitLab, Bitbucket
• Figma, Jira

EDUCATION ADDITIONAL LEARNING

Kyiv National University of Construction • “Postgresql Udemy Course” 2025​
and Architecture (2016 – 2019) • “Fundamentals of Dart: Community Edition” by S.A.
Chernyshov, 2025
• “Flutter Engineering” by Majid Hajian, 2024

LANGUAGES HIGHLIGHTS

• English (B1) Trained under the supervision of a senior-level mentor
• Ukrainian (Native)​ Participated in programming olympiads (Pascal) during
• Russian (C1) school