Senior Frontend Developer - JS & Microfrontends (Remote)

The Whiteam; United States; Remote; USD 37,000 - 39,000; Full time

Benefits offered by this job

23 days vacation

14 payments per year

Healthcare + dental insurance

Flexible compensation options (child V

Job summary

THEWHITEAM is seeking experienced Frontend Developers for a 100% remote European project focused on modern web development and frontend architecture. You will build accessible, high-quality web applications using JavaScript, HTML, and CSS, while applying design patterns and testing strategies to ensure reliability.

Ideal candidates have 5+ years in frontend, strong testing experience (Karma, Chai, Sinon, Jasmine or Mocha) and familiarity with microfrontends, REST APIs, and build tools like Yarn,

Qualifications

• 5+ years of experience in frontend development.
• Strong knowledge of JavaScript (ES5/ES6).
• Extensive experience with HTML and CSS.
• Experience with unit and component testing tools such as Karma, Chai, Sinon, Jasmine or Mocha.
• Experience with integration and end-to-end testing using WebdriverIO or Selenium.
• Experience with visual testing using Playwright and accessibility testing.
• Knowledge of JSON, REST APIs and web services.
• Experience configuring frontend package and build tools such as Yarn, NPM and Bower.
• Experience with Git and version control workflows.
• Knowledge of Rollup, Webpack and Node.js-based command-line tools.
• Strong understanding of frontend design patterns and architecture.
• Experience with microfrontend strategies.
• Experience with at least one frontend framework or library: Angular, React, Vue, Polymer or Lit.
• English: Advanced level (C1).
• Spanish: Professional working proficiency.

Responsibilities

• Develop and maintain web applications using JavaScript (ES5/ES6), HTML and CSS.
• Implement robust, reusable and maintainable frontend components.
• Apply frontend design patterns and architectural best practices.
• Contribute to the design and implementation of microfrontend architectures.
• Develop and maintain unit and component tests using Karma, Chai, Sinon, Jasmine and Mocha.
• Implement integration, end-to-end, visual and accessibility tests using WebdriverIO, Selenium and Playwright.
• Work with JSON, REST APIs and web services to integrate frontend applications with backend systems.
• Configure and maintain frontend development and build tools, including Yarn, NPM, Bower, Rollup and Webpack.
• Use Git for version control and collaborative development.
• Support continuous integration processes and contribute to code quality and reliability.
• Identify, troubleshoot and resolve frontend issues related to functionality, performance and accessibility.
• Collaborate with other developers and technical stakeholders to deliver high-quality software.

Skills

JavaScript ES6

HTML

CSS

Unit testing

End-to-end testing

Microfrontend

Frontend patterns

React

Angular

TypeScript

English C1

Spanish

Tools

Yarn

NPM

Bower

Rollup

Webpack

Job description

THEWHITEAM is seeking experienced Frontend Developers for a 100% remote European project focused on modern web development and frontend architecture. You will build accessible, high-quality web applications using JavaScript, HTML, and CSS, while applying design patterns and testing strategies to ensure reliability.

Ideal candidates have 5+ years in frontend, strong testing experience (Karma, Chai, Sinon, Jasmine or Mocha) and familiarity with microfrontends, REST APIs, and build tools like Yarn,