ReactJS frontend developer

Thrive IT Systems; Barcelona; Hybrid; EUR 45,000 - 70,000; Full time

Job summary

Thrive IT Systems is seeking a Senior Frontend Engineer to build the user interface for our project using React. You will develop high quality features, collaborate with the team to solve problems, and contribute to frontend excellence.

The role requires React 18, semantic HTML, scalable CSS, and modern tooling. This is a fixed-term 6-month contract with hybrid work: 2 days per week in the Barcelona office.

Qualifications

• Expert knowledge of ReactJS (React 18) and hooks.
• Semantic HTML and accessible markup.
• CSS with scalable systems and vanilla CSS.
• Experience with modern frontend tooling (Webpack, Babel, NPM).
• Version control with Git and GitHub.
• Experience with CSS-in-JS and component libraries.
• Familiarity with Storybook and design systems.
• Understanding micro frontend architectures.

Responsibilities

• Develop, test, and maintain high quality features using React.
• Write clean, maintainable, well-tested code.
• Collaborate closely with the Lead Frontend Engineers, backend engineers, and designers.
• Participate in code reviews and set best practices.
• Contribute to the frontend lifecycle from design to deployment.

Skills

React 18

HTML semantic

CSS system

Webpack

Babel

NPM

Git/GitHub

CSS-in-JS

Storybook

Micro frontend

Tools

Webpack

Babel

NPM

GitHub

Job description

Описание:

The Senior Frontend Engineer will be a key contributor to building the user interface for the project This role involves developing high quality features collaborating with the team to solve complex problems and contributing to the overall technical excellence of the frontend application

Задачи:

• Develop test and maintain high quality features and components using React.
• Write clean maintainable and well tested code.
• Collaborate closely with the Lead Frontend Engineer backend engineers and designers.
• Participate in code reviews and contribute to establishing best practices.
• Contribute to the entire frontend development lifecycle from technical design to deployment.

Требования:

• Expert knowledge of the latest version of ReactJS including the use of hooks and new features in React 18.
• Expert knowledge of HTML best practices including semantic HTML and writing accessible markup.
• Expert knowledge of CSS including vanilla CSS and writing scalable CSS systems.
• Proficiency with modern frontend tooling including Webpack Babel and NPM.
• Strong experience with version control using Git and platforms like GitHub.
• Experience with CSS in JS libraries.
• Experience building and maintaining component libraries or design systems.
• Familiarity with Storybook for component development and documentation.
• Experience with or strong understanding of micro frontend architectures.

Условия:

This is a Fixed Term 6 Months Contract role. Hybrid, 2 Days per week work from office