Tatiana Kostyanok
Hi, I'm Tatiana Kostyanok, a frontend developer with 5+ years of experience in developing and maintaining front-end web applications.
About
Hi, I’m Tatiana Kostyanok, a frontend developer with 5+ years of experience in developing and maintaining front-end web applications. I enjoy exploring new technologies and solving challenging problems that deliver value to users and the business.
I work well independently, quickly learn new skills, and have experience leading a small team and collaborating with backend engineers to integrate APIs.
- Joined November 2025
Languages
- UkrainianFluent
- RussianFluent
- EnglishAdvanced
- FinnishAdvanced
Industry experience
- Software & Internet
- Professional Services
- Media & Entertainment
- Other
Work experience· 14 roles
Developed client-server internal web application to help analyze, buy and sell apartments using React JS, TypeScript, Redux Toolkit and Material-UI; created tests with Jest, Cypress and Storybook; developed custom and reusable components; led and mentored a team of 5 developers; collaborated with Backend developers to integrate RESTful APIs endpoint.
Developed client-server internal web application to help analyze, buy and sell apartments (React JS + Typescript + Redux Toolkit + Material-UI). Created tests with Jest, Cypress and Storybook. Developed custom and reusable components. Led and mentored a team of 5 developers. Collaborated with Backend developers to integrate RESTful APIs endpoint.
Developed client-server internal web applications (TypeScript + React JS); developed internal component library; developed company website based on Gatsby Framework.
Education
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