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Back-end Developer
  • Kraków County
Back-end Developer
Kraków, Kraków County, Lesser Poland Voivodeship, Polska
Pracujw
25. 2. 2025
Informacje o stanowisku

Sapiency is an application intended for content creators and communities that may have or want to have their blockchain-based token. It combines the functions offered by social media (including building a community, the possibility of sharing content and interacting with other users) with the possibility of financing your own projects using crowdfunding. Sapiency aims to change the way how social media converts value from monetisation to tokenization.



We are looking for an experienced Back-end Developer to join our team. You will be responsible for the application.



What will you be doing?

  1. Work closely with Product Owner and team members to plan and negotiate iterative development cycles.
  2. Gathering process and proposing the right architectural solutions.
  3. Create applications and implement functional requirements provided by the feature owner.
  4. Implement tests at various levels: unit, integration, component, contractual, functional, and performance tests.
  5. Take part in the applications architecture design.
  6. Fix bugs.
  7. Compile necessary documentation.
  8. Be a reliable team player.


What are our main requirements?

  1. Min. 2 years of experience working with Java and Kotlin.
  2. Experience in JavaScript and Node.js.
  3. Experience with SQL and NoSQL databases.
  4. Very good knowledge of building REST APIs according to guidelines.
  5. Implementing integrations with other systems (SaaS).
  6. Understanding of SOLID principles, Event-Driven Architecture.
  7. Understanding development best practices, Git, CI/CD, automation.
  8. Experience with any cloud provider for at least 1 year.
  9. Essentials of Docker and virtualization.
  10. Eager to learn, proactive, and self-sufficient.
  11. English at least B2.
  12. Experience working remotely within a team working in an agile environment.


What else would be appreciated?

  1. Interest and drive in the crypto world.
  2. Solidity programming language.
  3. Flutter.


Perks & Benefits:

  1. Work in a flexible startup environment.
  2. Opportunity to learn new technologies.
  3. Possibility to impact the product with your ideas.
  4. Education, training.
  5. Company events.
  6. Medical care.
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