Oleh

Oleh Dudak
FRONTEND DEVELOPER
Lviv, Ukraine | [відкрити контакти](див. вище в блоці «контактна інформація») | [відкрити контакти](див. вище в блоці «контактна інформація»)

PROFESSIONAL SUMMARY
Frontend Developer with commercial experience building web applications using React, Next.js, JavaScript, and
TypeScript. Experienced in implementing responsive interfaces from Figma designs, developing complex client-side
business logic, integrating APIs and WebSockets, and structuring maintainable frontend code. Has contributed to
architecture decisions, code reviews, and team delivery.

TECHNICAL SKILLS
Programming: JavaScript, TypeScript
Frontend: React, Next.js, HTML, CSS, SCSS, Tailwind CSS
State management: Redux, Redux Toolkit, Context API
Data and integration: REST APIs, Axios, React Query, WebSockets
Forms and validation: Formik, Zod, Validator
UI and localization: Material UI, Styled Components, i18n, React Toastify
Tools: Git, GitHub, Bitbucket, Jira
Payments and verification: Stripe, Persona

PROFESSIONAL EXPERIENCE
Frontend Developer / React Native Developer | OBRE Jul 2025 – Mar 2026
• Led frontend development of the customer mobile application using React Native and Expo, defining implementation
priorities and coordinating feature delivery.
• Worked with product and backend teams to translate business requirements into technical workflows and specifications.
• Implemented authentication flows including email and phone sign-up, deep-link password reset, optional two-factor
authentication, and biometric login.
• Built geolocation-based job execution flows with work zones and on-site verification.
• Implemented requested-action workflows for changes to scope, time, and materials, including attachments and approval
states.
• Developed completion reporting with structured evidence attachments.
Team Lead Frontend Developer | NICELY.GROUP Feb 2025 – Jun 2025
• Defined technical direction and technology choices for key features before sprint implementation.
• Resolved complex technical blockers affecting frontend delivery.
• Conducted code reviews and monitored frontend code quality.
Frontend Developer | NICELY.GROUP Feb 2024 – Feb 2025
• Selected technologies for individual modules and applied architectural approaches based on product requirements.
• Implemented complex frontend logic for new features.
• Maintained clean, readable, and maintainable code.
Frontend Developer | Chin Mar 2023 – Feb 2024
• Implemented website pages and interface layouts from Figma designs using React, Next.js, and Tailwind CSS.
• Developed frontend functionality and interactive UI components.
• Integrated APIs, WebSockets, and backend services.
• Participated in technical discussions and tested client-side functionality for stability.

SELECTED PROJECTS
HMH – Business Platform
Technologies: React, Next.js, TypeScript, JavaScript, Redux Toolkit, Context API, Axios, Formik, Zod, WebSockets
• Designed the project architecture and structure from scratch and delivered it to production.
• Developed an advertising system where users complete tasks and earn rewards.
• Implemented a ratings module displaying approximately 40 data fields dynamically.
• Built post creation with structured text, images, and media content, plus a balance management page with analytical
elements.
• Organized project documentation in three languages and implemented real-time notifications using WebSockets and a
referral system.

Chin – Online Store
Technologies: React, Next.js, TypeScript, Tailwind CSS, APIs, WebSockets
• Built responsive pages from Figma designs and implemented interactive frontend functionality.
• Integrated APIs and WebSockets and worked on usability across devices and browsers.

EDUCATION
Lviv Polytechnic National University — Master's degree, System Analysis | 2024–2026
Lviv Polytechnic National University — Bachelor's degree, System Analysis | 2020–2024

LANGUAGES
Ukrainian — Native | English — B1