Czym będziesz się zajmować? Responsibilities:We are looking for a motivated Backend (Node + Java) Developer to build scalable backend solutions and innovative features. You will work on projects such as KYC automation, P2P transactions, and mobile payment integrations in a dynamic, collaborative team environment.Design, implement, and develop backend applications using Node.jsCreate and optimize RESTful APIsWorking with a routing system written in JavaDevelop innovative features such as automated KYC processes, peer-to-peer transactions, bill sharing, and mobile payment integrations (e.g., BLIK)Integrate with databases (SQL/NoSQL)Participate in designing system architecture and solutionsTroubleshoot and optimize existing systemsCollaborating with team membersWe offer:It's simple - we keep you happy and you work happily. With us you can be independent, work on international projects. What"s more we conduct skillUp internal trainings for everyone in the company. No matter if you work remotely or in the office, there is always a place for you in our chillout zone, or for your bike in our free parking space.International environmentInternal trainings100% remote workRecommendation bonusFriendly atmosphereIntegrationsVariety of the projects and the possibility to move between them

Kogo poszukujemy? Requirements:Hybrid work in Warsaw during onboarding4+ commercial experience in creating backend solutionsHands-on experience and good knowledge of Node.js (commercial or personal projects) and JavaFamiliarity with frameworks such as Express, NestJS, or KoaPractical experience with TypeScriptExperience with databases (e.g. PostgreSQL, MongoDB, or MySQL)Understanding of version control systems (Git)Ability to write unit and integration tests (e.g. Jest)Knowledge of design patterns and object-oriented programming principlesStrong communication and teamwork skillsProficiency in English (C1)Additional advantages:Experience with cloud platforms (AWS, Google Cloud, Azure)Familiarity with CI/CD tools (e.g., Jenkins, GitLab CI)