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Mid/Senior Full-stack Engineer



Posted on Wednesday, May 29, 2024



SALARY for MID Full-stack Engineer: 17 000 - 23 000 PLN gross/monthly

SALARY for SENIOR Full-stack Engineer: 21 000 - 27 000 PLN gross/monthly

Team up with us as we build and continue improving one of the most popular ed-tech products on the planet. In a world of questions and uncertainty, you can be part of the answer as we shape the future of learning and change lives, one student at a time. If this excites you, you know what to do next.

Let’s get to know each other. And get ready to make a difference!


As a Full-stack Enginner, you’ll work on the experience of students who use the web version of Brainly. You will work on implementing innovative technologies to provide personalized and efficient learning experience to our users. This includes conducting A/B testing and other experiments that will have an immediate impact on students who start off their learning process with a single question. Curious about the team's work? Check Test Prep.

Are you a goal-driven team player? Do you like tackling new challenges using leading-edge industry tools? Can you adapt to rapidly changing conditions while learning and bettering yourself? Are you a detail-oriented expert who loves focusing on quality? If you answered yes to these questions, you might just be the perfect candidate for this role!


  • Transform the world of online education by developing products for students, parents, and teachers around the globe — your impact is immediate!

  • Work with the newest technology stack and scrum values to maximize your productivity and make work easier.

  • Work with a self-sustainable, cross-functional team that has full ownership of the process and product.

  • Contribute to a data-driven environment, experiment constantly, deliver fast and learn even faster.


  • Drive initiatives leading to better fit students' education needs.

  • Work together with Designers, Product Manager and Data Analysts to identify most suitable solutions for the problems of our users

  • Design, develop, and maintain code for the Brainly platform to enhance the great learning experience for our users.

  • Building solutions according to requirements, adhering to company standards, conventions, and best practices.

  • Solving complex technical challenges such as performance, scalability, high reliability and security

  • Collaborate with software engineers and other roles to design scalable services, plan feature roll-out, and ensure high reliability and performance of your deliverables.

  • Conduct code reviews, contribute high-quality documentation and build robust test suites for your features.

  • Maintaining existing systems by monitoring, troubleshooting, debugging and fixing software defects.


  • 4+ years of professional experience as a Full-Stack engineer

  • Strong experience in React or Angular

  • Strong experience in NodeJS

  • Experience in testing with JavaScript frameworks

  • Proficiency in TypeScript, enhancing code quality and providing strong typing to JavaScript.

  • Familiarity with design patterns and their application in solving real-world challenges..

  • Adherence to code best practices, ensuring maintainable, readable, and efficient codebases.

  • High level of self-organization and ability to make your own decisions

  • Team player with great communications skills, including cross-team collaboration and a drive to innovate in order to answer the needs of the users

  • Autonomy in proposing technical solutions to presented business problems, and delivering them in collaboration within the team or outside of it

  • Fluency in English (B2/C1 level)

  • Required Frontend

    • Strong proficiency in creating dynamic and responsive user interfaces.

    • Experience with server-side rendering capabilities for enhanced performance.

    • Solid understanding of client-side data storage strategies, both within the application (e.g react query) and the browser.

    • Proficiency in styling using SCSS, modern CSS, and Tailwind, ensuring visually appealing designs.

  • Required Backend

    • Strong command of Node.js, enabling you to build robust and scalable backend services.

    • Knowledge of REST API principles, designing and implementing endpoints for effective communication.

    • Understanding of both SQL and NoSQL databases, allowing you to make informed data storage choices.

    • Awareness of security best practices, implementing authentication and authorization mechanisms.

    • Basic understanding of DevOps principles, including CI/CD pipelines and deployment strategies.


  • Comfortable working with the JavaScript AWS SDK for seamless interaction with AWS services.

  • Familiarity with AWS services such as RDS, DynamoDB, Cache, S3, and Secrets, and their integration into applications.

  • Understanding of server-side rendering and hydration strategies, contributing to optimized user experiences

  • Knowledge of monorepos and their advantages in managing complex projects.

  • Basic experience with WebSockets, facilitating real-time communication features.

  • Comfortable working within Dockerized environments, managing dependencies and deployments.

  • Familiarity with Next.js and Express, understanding when to use each based on project requirements.

  • Prior experience in data-driven organization, using metrics to take informed business and technological decisions (ideally startup, scaleup or ed-tech)


  • We want to see you grow along with us – you will have 800$ per year for personal development, extra time for attending conferences and workshops, and unlimited access to an online learning platform (courses from Coursera, Udacity, Udemy, Harvard ManageMentor, and many others!)

  • Health is important, which is why at Brainly, we fully cover private health & dental care packages for you and your family and provide you with a sport card (Multisport Plus)

  • You will also get an access to online individual psychological consultations with professionals in English & Polish via the Mental Health Helpline

  • Flexible working hours – working requires communication, so we work within the European business hours, but we also know that life may be unpredictable, so if you need to jump out of work (doctor’s appointment, emergency, anything) – no problem!

  • Your personal concierge AskHenry will support you in your daily duties, eg. planning your dream vacation

  • You can join internal communities and contribute to charity, diversity and inclusion initiatives, take part in great internal events or represent Brainly at conferences or meet-ups

  • We also provided stock options.

By sending us your application you agree that Brainly sp. z o.o. will process your personal data to participate in this recruitment process. If you want to know more about how Brainly processes your personal data please click here.


Brainly is the #1 AI education tool in the world, with a vision to give every student in the world access to personalized learning, no matter their background or resources.

Brainly’s full-service AI Learning Companion™ is relied upon by more than 15 million daily users; students, parents and teachers for personalized, on-demand academic assistance. The platform provides world-class homework help, test prep and tutoring that is verified for accuracy and customized to each student based on their learning style.

Founded in 2009, Brainly operates in the US, Europe, Asia and Latin America, and is backed by Prosus, Point Nine Capital, General Catalyst, Runa Capital, Learn Capital and Kulczyk Investments.

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