Oleh

Oleh Dudak
FRONTEND DEVELOPER
Lviv, Ukraine | [open contact info](look above in the "contact info" section) | [open contact info](look above in the "contact info" section)

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