JavaScript / TypeScript Engineer (React)

On-siteSalary not specified
Portugal

Tech Stack

JavaScriptTypeScriptReactHTMLCSSJestMochaEnzymePlaywrightWebpack

Job Description, Responsibilities & Requirements

About the Position

We are searching for passionate JavaScript / TypeScript engineers to join our team in Lisbon, Portugal, for a full-time position. Our technology stack is modern and based on TypeScript, React, Babylon.js, and webpack.

Responsibilities

  • Build a cross-platform web application used by hundreds of thousands of users worldwide on iOS, Android, and desktop platforms.
  • Deliver production software using JavaScript or TypeScript.
  • Improve yourself technically and stay updated with contemporary programming trends.

Requirements

  • Passion for front-end development.
  • Proven experience in delivering production software using JavaScript or TypeScript.
  • Highly proficient in spoken and written English.
  • Bachelor’s Degree in IT or equivalent.
  • Solid knowledge and experience with HTML5 and CSS3.
  • Excellent communication skills and a pragmatic approach to problem solving.

Nice to Have

  • Solid knowledge of TypeScript.
  • Experience in other strongly typed programming languages.
  • Interest in contemporary programming trends such as functional and reactive programming, CSS preprocessing, alternative JavaScript languages, web components, touch user experiences, and responsive design.
  • Experience with React, Redux, RxJS, Babylon.js.
  • Knowledge of modular CSS by using css-modules and post-css.
  • Experience with testing and specifications libraries like Jest, Enzyme, Puppeteer/PlayWright, WebDriverIO, Cucumber, Mocha.
  • Knowledge of JavaScript ecosystem tools, such as webpack, npm, yarn.
  • Passion towards performance profiling and optimization.

We Offer

  • Entrepreneur culture of the company, which allows you to try new approaches and technologies all the time.
  • Recognition from the business which translates to very competitive salaries and a supportive attitude.
  • Developing games featuring live video serving customers around the world.
  • A healthy mix of startup-like culture of the company, which enables us to try new approaches and technologies and remain on the edge of technological development and enterprise, with stability and supporting functions to help you focus on your job.
  • Modern and developer-friendly delivery processes, including Agile (Scrum / Kanban), JIRA issue tracking, Confluence wiki, GitLab source control, Jenkins continuous integration and delivery, modern hardware and software for development (an IDE of your choice).
  • Being a part of an international team in a successful, publicly traded company.
  • Health insurance, contemporary office environment, tech conference attendance, training, hackathons, and other benefits and perks.

Apply Now

Apply Now

Job Details

Company name:
Evolution
Location:
Portugal
Employment Type:
Full-time
Work Mode:
On-site
Posted on TheJob:
5/2/2026
Last checked:
6/13/2026
Posted on the source:
11/6/2025
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