Hubchakevych

Serhii Hubchakevych
Software Engineer

📞
💬 Phone: [open contact info](look above in the "contact info" section)

📧 Telegram: @serhii_hubchakevych

📍 Email: [open contact info](look above in the "contact info" section)
Location: Vinnytsia, Ukraine / Remote

Skills and technologies
Layout
HTML5, CSS3, SASS/SCSS, Bootstrap, Material UI, Mantine UI, Headless UI
Core
JavaScript (ES6+), TypeScript, React, Next.js, Nest.js (BFF), MongoDB
Store Management
Zustand, Redux Toolkit, MobX, React Query, RTK Query, Thunks, Sagas
Testing & Quality
Jest, React Testing Library, Storybook
Other
Firebase, GraphQL, WebSockets, Sentry, Grafana, GTM, GA, Vite, Webpack, PowerShell scripting,
Tizen Web Apps (Caph Framework)
Additional Skills
Trainee/Junior mentorship, candidate evaluation, code review

Professional Experience
Senior Software Engineer
Playtika | 02.2025 – 02.2026

Project: NDA – Crypto Exchange Platform
Technologies: React, TypeScript, MUI, RTK Query, NX Monorepo
Responsibilities & Achievements:
Participated in full-cycle development from scratch to P2P and staking release.
Implemented staking features and administrative dashboards.
Worked within a large NX monorepo with shared libraries and standards.
Collaborated closely with backend, product, designers, and security teams.

Senior Software Engineer
Playtika | 07.2023 – 02.2025

Project: NDA – Internal Deployment & Analytics Platform
Technologies: React, TypeScript, MUI, Nest.js (BFF), microservices, Sentry, Grafana, PowerShell
Responsibilities & Achievements:
Developed features integrating studio systems into a core internal platform.
Worked on CI/CD pipelines, disaster recovery flows, and analytics dashboards.
Gained extensive experience with infrastructure-related tasks and remote server setup.
Delivered solutions across a wide variety of technical domains.

Middle Software Engineer
Lampa Software | 07.2022 – 07.2023

Project: Crypto Crew / Comms
Technologies: React, TypeScript, React Query, WebSockets, testing

Responsibilities & Achievements:
Developed the platform from scratch with a strong focus on scalability.
Implemented complex custom animations and optimized existing ones.
Built real-time communication features similar to Discord using WebSockets.
Delivered a multi-platform-ready architecture.
Middle Software Engineer
Lampa Software | 01.2021 – 06.2022

Project: NDA – Traffic Analytics Platform (USA)
Technologies: Preact, Storybook, D3.js, Chart.js, Socket.IO, Webpack
Responsibilities & Achievements:
Built authentication modules and advanced data visualizations.
Developed interactive charts with zooming and scrolling.
Integrated third-party services such as Mapbox.
Deeply customized Webpack for Preact-based architecture.

Middle Software Engineer
Lampa Software | 08.2021 – 01.2022

Project: WeConnect (before rebranding)
Technologies: React, Next.js, TypeScript, Socket.IO
Responsibilities & Achievements:
Designed and implemented core project architecture.
Introduced functional/route-based code organization.
Built API management via interceptors.
Implemented mixin systems for adaptive layouts, typography, and animations.

Middle Software Engineer
Lampa Software / Biggi Group | 01.2020 – 08.2021

Project: Tizen Web Applications (3 projects)
Technologies: React, Redux, Caph Framework, jQuery, React Player, Mantine UI
Responsibilities & Achievements:
Frontend development from start to production release.
Worked extensively with TV key navigation systems.
Focused on performance optimization and animations.
Gained strong expertise in performance-critical environments (Tizen OS).

Junior Software Engineer
Lampa Software | 03.2019 – 12.2019

Project: re-move
Technologies: React, Redux, Redux Thunk, React Hook Form, SCSS
Responsibilities & Achievements:
Frontend development from scratch to release.
Extensive work with complex forms and validation logic.

Languages
Ukrainian - native, English – (B1-B2)

Personal Qualities
Calm and reliable team player who is comfortable working in complex environments. I like to
understand the problem deeply, ask the right questions, and bring things to a working, stable result. I
take responsibility for my work, respect deadlines, and don’t disappear when something goes wrong
— instead, I focus on fixing it.