Front-End Engineer


Full Time
Kraków, Poland   
Posted 1m ago

Do you have an explorer mindset and crave a collaborative organization, where your contributions will make a strong impact? Great! The Brainly Design System Team is looking for a creative and experienced engineer to join us and explore the area that is still a novelty to some.

If you love creating tools, care about user experience and have the drive to improve stuff - please let us know about you!  


The aim of our work is to close the gap between design and development. This pursuance resulted in inventing Html-Sketchapp - a first open-source tool that turns HTML nodes into Sketch layers or symbols. That was a revolution in cross-team communication and cooperation. A revolution that turned out to be so effective that it spread to dev teams all over the world [1, 2], including those of Microsoft, Yelp and Seek that used our tool or make new solutions using it. We described our story and process in detail here. You can also check our open source style-guide and documentation of the design system.


As a Front-End Engineer in Design System Team, you will help us move this heritage to the next level by making a UI framework, toolings, components, and best practice guidelines. Thanks to your effort Brainly frontend engineers and designers will be more productive. Your work will also benefit the users of the biggest educational platform in the world, by making Brainly experience more effortless, inclusive and consistent. We believe in the growing industry by sharing knowledge and open source projects, so there is a strong chance your work will benefit not only Brainly but other teams worldwide, thus Design System tools are still a niche. You will work with performance, maintainability, accessibility, and stability as a primary focus.


  • Modern JavaScript (ESNext) and Node.js 
  • Modern CSS (CSS Modules, PostCSS)
  • React 
  • Flow 
  • Jest, Enzyme and Puppeteer 
  • Webpack, Babel, Prettier, and ESLint 
  • Continuous Delivery


  • Empowering engineers across the company to build responsive, accessible, and satisfying experiences with minimal effort
  • Maintaining, developing and building tools to bridge Design, Front End & Mobile along with a mobile engineer from the team
  • Creating standards, conventions, and best-practices guidelines for Brainly UI code that is used company-wide mentor other engineers on the subject and lead the process of its adoption across Product Teams
  • Continuously improving the front-end/design framework, reusable style-guides components, and libraries
  • Making a positive impact on our engineering culture, encouraging knowledge-sharing and driving technical discussions within and outside the team and the company
  • Challenging existing practices by being eager to discuss your thoughts with the professional community


We expect you to have: 

    • Excellent knowledge of modern JavaScript and React framework
    • Advanced experience in HTML and CSS
    • Experience in solving cross-browser/platform UI compatibility issues
    • Experience in building UI components libraries
    • Experience in UI performance optimization
    • Ability to research, brainstorm, prototype and create new technical solutions

It would be great if you have: 

    • Understanding of best practices and standards for web accessibility
    • Experience in building design-related tools 
    • Experience in developing design systems 
    • Experience in building JavaScript Command-Line Interfaces 
    • Experience in UI animations

Additional details:

  • Location: Kraków, Poland
  • Employment type: employment contract or B2B
  • Some of our benefits: 
    • Flexible working hours, possible remote work
    • Personal development budget 800$ per year + time off for conferences and workshops
    • Private health care for you and your family (dental care included) provided by Luxmed
    • Warta life insurance 
    • Multisport Plus card
    • In-house English and/or Polish language classes
    • Company lunches on Thursdays, kitchen stocked with snacks and fruits
    • Reimbursement for public transport costs
    • AskHenry service - personal assistant
    • Bicycle parking and shower 


Brainly is the world's largest peer-to-peer learning community for students, parents and teachers. At, and its group of websites around the world, students connect to both receive and offer help with homework problems and questions. The unique opportunity for students to freely ask questions and gain the confidence that comes from helping others and inspires students to learn in a collaborative community that receives more than 150 million users each month.

Based in Kraków, Poland, with its US headquarters in New York City, Brainly is currently available in 35 countries. The total funding from current investors, including Naspers, General Catalyst Partners, Point Nine Capital, Runa Capital and Learn Capital equals $68.5M. More information about Brainly is available on

Read more about the processing of your personal data by Brainly HERE.

Please include the following statement in your application:

Hereby I grant my consent to Brainly with registered office at Krowoderska 63B/6, 31-158 Kraków, Poland, KRS No 0000354511 for processing of my personal data that I provided to Brainly. I hereby confirm that I was informed about the processing of my personal data by Brainly.

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