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Senior Full Stack Engineer

  • By Paulina Motowidlo
  • 30 August 2021

The candidate will join the company that provides Q&A educational platform for children. They help students with homework, expanding their knowledge and popularizing access to education.


You will be responsible for development of our payments SDK used in all web applications. This SDK is built using company’s Brainiac React application framework. The SDK wraps payment forms for leading payment types like PayPal and Google Pay using BlueSnap. It will be your job to ensure this SDK covers all paths and delivers quality end-to-end tests with the QA team. You will also be responsible for delivering the best possible developer experience for product engineers. Lastly, you will be tasked with contributing to our Payments System roadmap by continually evaluating new technologies and payment types that can be incorporated into their products.


  • Engineer and develop our payments SDK using our Brainiac React application framework
  • Fix reported issues
  • Create a best in class test suite including end-to-end testing that ensures the SDK “just works”
  • Contribute to our payments API written in GO
  • Create automation tools to improve the developer experience, esure code is of the highest quality, and is secure


  • 5 + years production experience building React applications
  • At least one production application written in a server side language such as Go (prefered), Node, etc.
  • At least one production application integrating payments systems
  • Good understanding of sagas and distributed transactions
  • Experience building and integrating message oriented middleware
  • Good knowledge of modern JavaScript (ESNext)
  • Experience with agile software development using Jira and Confluence
  • Knowledge of consuming REST APIs and managing response codes
  • Proficient in at least one of the followingCircleCI, BitBucket, CodeDeploy, TeamCity, TravisCI
  • Fluency in English


  • SALARY: 15 000 – 23 000 PLN monthly
  • Flexible working hours
  • 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
  • If needed, additional budget for work remote work accessories
Note: Prepare your CV in English (PDF), fill in the form and apply! 
Please include in your CV the following clause necessary for the recruitment process
I agree to the processing of personal data that I have made available voluntarily in the recruitment process by the Administrator of personal data, i.e. Dotcommunity Spółka z ograniczoną odpowiedzialnością [Ltd.] based in Cracow, 15 Żabiniec Street, 31-215 Cracow, registered in Poland, the Cracow’s District Court – Śródmieście, XI Commercial Division of the National Court Register under number 0000468484, VAT number: 9452174499, (“Dotcommunity”) in order to carry out the recruitment process for the Senior Full Stack Engineer on the basis of Art.6 item 1a of the Regulation (EU) 2016/679 of the European Parliament and of the Council of 27 April 2016 on the protection of natural persons with regard to the processing of personal data and on the free movement of such data, and repealing Directive 95/46/EC (General Data Protection Regulation)