Олександр
Вчитель англійської
Контактная информация
Соискатель указал телефон .
Фамилия, контакты и фото доступны только для зарегистрированных работодателей. Чтобы получить доступ к личным данным кандидатов, войдите как работодатель или зарегистрируйтесь.
Получить контакты этого кандидата можно на странице https://www.work.ua/resumes/17216497/
Опыт работы
Front-end розробник
с 08.2025 по 12.2025
(5 месяцев)
Indeema Software Inc., Львів (IT)
Contributed to a B2B SaaS fleet monitoring and analytics platform serving automotive OEMs and energy storage system providers.
The portal-webapp enables enterprise clients to monitor device health, track warranty risks, analyze safety metrics through real-time
dashboards and data visualization. Worked within a cross-functional team on building scalable, type-safe UI architecture with strong
emphasis on testing, performance optimization, and enterprise-grade features.
- Architected and delivered comprehensive PDF export functionality with full dashboard state persistence, significantly improving
enterprise client reporting workflows and reducing manual screenshot requests.
- Designed modular Zustand state management architecture with reusable store slices and custom hooks for table synchronization,
improving developer velocity and eliminating prop drilling across 20+ nested components
- Led incremental API migration from legacy to modern architecture across 15+ endpoints with zero downtime, improving type
safety, error handling, and reducing bundle size for better performance.
- Developed interactive Safety and Health dashboard widgets with Visx data visualizations and real-time severity trend charts,
enabling customers to identify critical fleet issues 40% faster through improved data accessibility.
- Redesigned table filtering UX with persistent URL state and improved visual hierarchy, reducing average clicks-to-filter from 4 to 2
while maintaining 80%+ test coverage and participating in 100+ code reviews.
Front-end розробник
с 05.2023 по 04.2025
(2 года)
OpenBet, Львів (IT)
Worked on a leading Sportsbook platform used by multiple international operators in the sports betting industry. Initially contributed
to the core web product, focusing on bug fixing and integration tasks to gain deep familiarity with the large-scale legacy codebase.
Later became a core contributor to the company’s MobileFirst initiative, which aimed to replace native iOS/Android apps with a
unified React Native codebase to streamline development across devices.
- Set up Redux Toolkit (RTK) for scalable state management with minimal boilerplate.
- Integrated React Navigation and WebView for seamless in-app routing and third-party content rendering.
- Implemented biometric Silent Login using secure token refresh logic via iOS Keychain and Android Encrypted Storage.
- Built reusable components, including a custom notification (snackbar) system from scratch using pure React Native.
- Developed a custom transformer to support coloured SVG icon from sprite files.
- Integrated Firebase Analytics and XtremePush SDKs for tracking and push notifications.
- Automated semantic versioning (<major>.<minor>.<patch>) via Jenkins pipeline on merge to “master” and “stable/” branches.
- Added a stage in CI/CD to automatically generate .apk and .app builds for QA teams.
- Maintained 90%+ unit test coverage using Jest and React Native Testing Library.
- Wrote tests for all Redux slices, analytics, and business logic under src/, ensuring robust quality gates.
- Created platform-agnostic helpers for adding accessibilityId to all key UI elements.
- Integrated mocked API responses from Docker-based services via middleware IP substitution logic during development and deep-
link sessions.
- Actively reviewed code, provided feedback across the team, and onboarded new developers.
- Ran spike investigations (e.g., switching of Firebase Analytics project in runtime) to explore tech feasibility.
- Coordinated closely with Mobile QA and Product Owner to ensure timely delivery of prioritized features.
- Handled permission discrepancies between iOS and Android (e.g., Android blocking UI during notification permission request in
Expo 52).
- Overcame Android KeyStore limitations by splitting tokens for secure storage.
- Maintained consistency and ease of development despite multi-platform constraints, contributing to a smooth UX and faster
iteration cycles.
Front-end розробник
с 12.2021 по 02.2023
(1 год 3 месяца)
Ripples, Дистанційно (IT)
Contributed to the development of Ripples Portal, a platform enabling beverage vendors to personalize drinks by printing images and
messages on foam (coffee, beer, etc.). Worked in a cross-functional team on building scalable, responsive UI with a focus on usability
and internal tooling for managing IoT-connected printing devices.
- Delivered a Hierarchy Tree page to navigate and manage entities (Organization → Location → Devices) in a structured visual
format.
- Implemented a template preview feature for Pro-tier users, improving content engagement and product stickiness.
- Developed a premium content gating mechanism with real-time visual feedback based on user tier and content availability.
- Built a printer locking flow with UI indicators to prevent parallel job conflicts and improve reliability.
- Enhanced modal forms with extended validation logic, ensuring error-proof interaction across edge cases.
- Worked within a modular frontend architecture using React, Redux Toolkit (RTK), and TypeScript.
- Refactored GraphQL queries and UI logic to support complex conditions and edge-case handling, improving user experience in key
flows.
- Used React Profiler and Lighthouse to identify bottlenecks and implement performance optimizations across critical views.
- Integrated UI components into an Electron-based client application used in physical printer stations.
- Maintained clean separation between frontend UI logic and the Electron main process.
- Debugged rendering issues and state inconsistencies within the Electron renderer context.
- Worked closely with the VP of Engineering, CTO, and in-house Architect to scope features and align on implementation details.
- Reviewed designs from Figma and implemented them with high fidelity, ensuring smooth handoff and consistency.
- Occasionally modified backend entities and migrations using Sequelize when adding new attributes to business models.
Tech stack: React, TypeScript, Redux Toolkit (RTK), GraphQL, Storybook, Axios, Electron, Sequelize, SQLite, MongoDB, Lighthouse,
React Profiler
Образование
Національний Університет Біоресурсів і Природокористування
Електрифікація та Автоматизація с.г., Київ
Высшее, с 2007 по 2010 (3 года)
Дополнительное образование и сертификаты
TESOL
2012, 4 місяці
Знания и навыки
- Організованість
- Викладання для дітей та підлітків
- Викладання корпоративної англійської
- Комунікабельність
- Здатність до навчання
- Онлайн-викладання
- Проведення індивідуальних занять
Знание языков
- Английский — продвинутый
- Украинский — свободно
Похожие кандидаты
-
English teacher
Львов -
Викладач англійської
Львов, Удаленно -
Вчитель англійської
Львов, Удаленно -
English teacher
Львов, Днепр, Киев -
Репетитор англійської
Львов -
Вчитель англійської
Львов, Удаленно