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Front-end Engineer


The Engineering team at Brainly is working on some of the most complex challenges in the ed-tech space: creating communities for students around the world. We focus on building the infrastructure that enables Brainly users to ask and answer millions of questions every day. The systems we build are used across all of Brainly, making us one of the most cross-functional teams at the company.

We are taking over the world, and to do so we are looking for strong engineers that are ready to push boundaries and help us solve large-scale problems with solutions that translate into lasting impact.

We’re looking for a strong Front-end Engineer/Growth Hacker to work with us on optimisation of subscriptions conversion rate and who will be responsible for increasing the effectiveness of our product.


  • Collaborating with the newly formed growth hacking team on ideation and creation of experiments
  • Delivering and managing the experiments
  • Conducting experiments using Google Optimise and other tools
  • Collaborating with other software engineers to design scalable services, planing feature roll-out, and ensuring high reliability and performance of your deliverables
  • Conducting code reviews, contributing high-quality documentation and building robust test suites for your features
  • Mentoring other engineers within the team and cross-functionally based on personal strengths and capabilities



  • Required
    • 2-3 years of professional experience as a Front-End engineer (preferably in an e-commerce, digital agencies or SaaS environment)
    • Excellent knowledge of modern JavaScript (ESNext)
    • Experience in React
    • Experience in testing with JavaScript frameworks
    • Experience in Responsive Web Design
    • Great knowledge of modern CSS methodology (i.e. BEM)
    • Experience in CSS Flexbox Layout
    • Knowledge of best practices in Website, JavasScript and Mobile performance and optimization topic
    • Fluency in English
  • Preferred:
    • Experience in applying WCAG 2.0 / 2.1 standard
    • In-depth knowledge of the latest React and its ecosystem
    • Experience with GraphQL
    • Experience in CSS Grid Layout
    • Experience in mobile-first approach in Responsive Web Design
    • Experience in End-to-End testing
    • Knowledge of CSS and Animations performance and optimization
    • Production experience in Service Workers

Your Attributes:

  • You take ownership of developed solutions
  • You have a Growth Hacking and Agile mindset
  • You have analytical attitude and genuine interest towards data, analytics and conversion optimization
  • You have self-organization skills
  • You have a high attention to details and focus on quality


  • Location: Kraków, Poland or remotely
  • Salary: 15 000 - 20 000 PLN gross/month (employment contract)
  • Start date: as soon as possible (however, we’re happy to wait for the right person)
  • Some of our benefits: 
    • Flexible working hours and the possibility to work remotely
    • Personal development budget 800$ per year +  unlimited time off policy for participation in conferences and workshops and access to an online learning platform with courses from Udemy, Harvard Manage Mentor and many others
    • Fully paid private health care packages for you and your family (dental care included) provided by Luxmed
    • Fully paid life insurance provided by Warta
    • Multisport Plus card
    • Access to the Mental Health Helpline - providing virtual support of external psychologists, psychotherapists, and coaches
    • AskHenry services - personal concierge services to help you to settle your everyday matters (like Ikea shopping or shoemaker visit)
    • Possibility to join one of our Employee Resource Groups and initiatives (Inclusion Council, Ladies at Brainly, Brainly Cares)
    • If needed, additional budget for work remote work accessories

What is Brainly?

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 200 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

By sending us your application, you agree that Brainly sp. z o.o. with its seats in Krakow, will process your data contained in the form below and in the documents you attach in to participate in recruitment. In connection with this, you have the right to withdraw your consents, the right to access to your data, the right to obtain their copy, rectify them, erase, limit their usage and also data portability right and object to their use by Brainly, as well as to lodge a complaint with the President of the UODO. If you have any questions regarding the use of information about you and exercising your rights related to this use, please contact our DPO - If you want get to know more about how Brainly uses and process your personal data [click here].

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