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Hi, I’m Mariia Oleksiuk, a Senior Front-End Developer with 10+ years of experience delivering high-performance, scalable, and accessible web applications for e-commerce, media, and enterprise platforms. I thrive in cross-functional collaboration, mentoring teammates, and delivering pixel-perfect UI across devices and browsers. I’m always learning and staying up to date with frontend innovations through online courses, webinars, and conferences. I enjoy transforming complex requirements into elegant, usable interfaces and helping teams ship features that boost productivity and user satisfaction.…Hi, I’m Mariia Oleksiuk, a Senior Front-End Developer with 10+ years of experience delivering high-performance, scalable, and accessible web applications for e-commerce, media, and enterprise platforms. I thrive in cross-functional collaboration, mentoring teammates, and delivering pixel-perfect UI across devices and browsers. I’m always learning and staying up to date with frontend innovations through online courses, webinars, and conferences. I enjoy transforming complex requirements into elegant, usable interfaces and helping teams ship features that boost productivity and user satisfaction.

Mariia Oleksiuk

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Hi, I’m Mariia Oleksiuk, a Senior Front-End Developer with 10+ years of experience delivering high-performance, scalable, and accessible web applications for e-commerce, media, and enterprise platforms. I thrive in cross-functional collaboration, mentoring teammates, and delivering pixel-perfect UI across devices and browsers. I’m always learning and staying up to date with frontend innovations through online courses, webinars, and conferences. I enjoy transforming complex requirements into elegant, usable interfaces and helping teams ship features that boost productivity and user satisfaction.…Hi, I’m Mariia Oleksiuk, a Senior Front-End Developer with 10+ years of experience delivering high-performance, scalable, and accessible web applications for e-commerce, media, and enterprise platforms. I thrive in cross-functional collaboration, mentoring teammates, and delivering pixel-perfect UI across devices and browsers. I’m always learning and staying up to date with frontend innovations through online courses, webinars, and conferences. I enjoy transforming complex requirements into elegant, usable interfaces and helping teams ship features that boost productivity and user satisfaction.

Available to hire

Hi, I’m Mariia Oleksiuk, a Senior Front-End Developer with 10+ years of experience delivering high-performance, scalable, and accessible web applications for e-commerce, media, and enterprise platforms. I thrive in cross-functional collaboration, mentoring teammates, and delivering pixel-perfect UI across devices and browsers.

I’m always learning and staying up to date with frontend innovations through online courses, webinars, and conferences. I enjoy transforming complex requirements into elegant, usable interfaces and helping teams ship features that boost productivity and user satisfaction.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Language

Ukrainian

Fluent

English

Advanced

Work Experience

Senior Front-End Developer at Grid Dynamics

September 1, 2021 - November 5, 2025

Developed and maintained responsive and dynamic UI components for enterprise web apps. Integrated Apollo Client to enhance data fetching and state management. Improved code maintainability by adopting styled-components for scalable styling. Wrote and executed unit tests with React Testing Library to ensure reliability. Collaborated with cross-functional teams and mentored junior developers.

Frontend Developer at InFront X

September 1, 2021 - September 1, 2021

Developed front-end for digital media projects for major sports brands. Built client-specific themes, UI components, and pages using React/Redux and Handlebars. Participated in design-to-code handoffs and Agile processes.

Frontend Web Developer at 8Bit Rock Stars / NFQ Group

September 1, 2016 - September 1, 2016

Frontend development for HappyFresh online grocery shop; built with React.js/Alt.js and Ruby on Rails backend; implemented responsive UI and refactoring tasks.

Frontend Web Developer at FPT Software

March 1, 2016 - March 1, 2016

Frontend web application for a Tommi project and data warehouse for the National Multiple Sclerosis Society; implemented HTML5, CSS3, JavaScript, jQuery, Bootstrap; matched PSD designs and ensured cross-browser compatibility.