Oleh

OLEH BILETSKYI
Frontend Software Engineer
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Profile
​ Experienced software developer with a master’s degree in math and computer technologies.
Skilled in JavaScript, TypeScript, React, and ReactNative. I’ve successfully developed and maintained
several projects.
In addition to my technical skills, I bring a strong foundation in analytical and structural thinking,
problem-solving, and a passion for continuous learning. I am passionate about new technologies,
communication, and sharing experiences. My goal is to continue growing as a developer and to
contribute to innovative projects that make a positive impact.

Tech stack

• JavaScript • TypeScript • React • React Native • Redux • Redux-Toolkit • RTK-Query • Redux-Saga • REST
API • GraphQL • HTML • CSS • SCSS • BEM • NativeBase • styled components • Tailwind CSS • Chakra UI
• Material UI • React Hook Form • yup • unit testing • Git • Scrum

Work experience
• Frontend Software Engineer — GlobalLogic — July 2023 – present
Projects: Industry assembly tool — an innovative digital product embedded in industry assembly
tools.
Key Responsibilities: Implementing functional web pages and components. Developing reusable
components for the web interface. Testing the web system on real tools to ensure functionality.
Conducting unit testing to verify code quality. Communicating with clients and customers.
Collaborating with the embedded team for integration and troubleshooting. Refactoring code to
improve performance and maintainability. Fixing bugs and preparing the system for release.

• Volunteer Frontend Developer — “Start yourself'' charity organization — Mar – June 2023
Projects: CRM for a charity organization for better and easier distribution of food and aid, accounting
of people.

Key Responsibilities: Developing the system structure for tracking individuals and managing the
distribution of food and aid. Implementing core functionalities, including data entry and
management for aid recipients, scheduling, and monitoring distribution. Creating and integrating
reusable UI components for forms, tables, and reports. Ensuring data accuracy and ease of access to
information. Optimizing system performance for fast access and smooth operation.
• React and React Native Developer — Self-employed — Mar 2021 – Apr 2023
Projects:
1. Website, admin panel and mobile application for creating, tracking and booking events, activities,
locations of entertainment and educational type.
2. Mobile application to support the physical and mental health of caregivers.
3. Website and mobile application messenger and task manager for teamwork.
4. Gas production online tracking website.
Key Responsibilities:
Implementing functionality for the website and the mobile application. Discussing design and
technical requirements. Creating and integrating reusable UI components. Implementing features
for creating, tracking, and booking events, including forms, calendars, and notifications.
Implementing data visualization elements, such as charts and graphs. Implementing AWS
application analytics. Ensuring compatibility of the web application across different browsers.
Working closely with designers, backend developers, and testers to integrate new features, resolve
issues, and ensure timely completion of project milestones. Code review and bug fixing.

• Technical Support Engineer — Ivano-Frankivsk Regional State Department — Mar 2019 – Feb 2021.
• Teacher of computer science and mathematics — Public School — Sep 2017 – Sep 2018.

Education

• Mathematics of Computer Technologies — Master's degree — Vasyl Stefanyk Carpathian
National University (Ivano-Frankivsk, Ukraine) — Dec 2018.
• Mathematics — Master of Education — Vasyl Stefanyk CNU — Dec 2018.

Languages

English (professional working proficiency), Polish (basic), Ukrainian (native speaker)

Soft skills
• analytical and structural thinking - I have a mathematical background, so I try to think about the
problem first, and then start implementing it.

• teamwork - I like teamwork with distributed personal tasks.

• communication - I understand the importance of communication in avoiding problems and work to
maintain clear communication with my team.

• responsibility - If I encounter any difficulties, I take responsibility for finding a solution, and if
necessary, I seek guidance from my team.

• public speaking - I'm not afraid to speak.

• desire to learn - I actively seek out opportunities to learn and develop new skills.