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We’re looking for a Fullstack Engineer (CollabHUB) to join our dynamic team and contribute to a platform that powers intelligent collaboration solutions.\nSounds like your kind of challenge?\n#LI - Hybrid: 6x/month from the office in Kraków\nResponsibilities\nHybrid work setup - 6x/month from the office in Kraków\nCollaborative team culture - work alongside experienced professionals eager to share knowledge \nContinuous development - access to training platforms and growth opportunities \nComprehensive benefits - including Interpolska Health Care, Multisport card, Warta Insurance, and more \nHigh quality equipment - laptop and essential software provided \nRequirements\nContribute to CollaborationHub solution design and technical direction.\nDesign, build, and maintain LakeHouse and WorkSync solutions.\nDevelop and maintain backend services and Web APIs using Java.\nBuild and maintain frontend features with React, HTML, and CSS.\nDesign and manage PostgreSQL databases, including data models and SQL queries.\nIntegrate services, APIs, and data flows across the platform.\nWrite and execute tests; participate in QA, defect investigation, and release validation.\nNote:Detailed project information will be shared during the recruitment process.\nBenefits\nMinimum 5 years of experience in a similar role.\nStrong knowledge of SQL (PostgreSQL), database design, and data modeling.\nProficiency in Java, Web API development, and backend services.\nHands-on experience with React (or other JS frameworks), HTML, CSS.\nFamiliarity with ETL/ELT pipeline development.\nUnderstanding of Software Development Life Cycle (SDLC).\nVersion control experience with Git.Strong problem-solving skills and attention to detail.\nExcellent interpersonal and communication skills.\nEnglish level: B2+\nJoining this project you’llbecome part of Mindbox - a tech-driven company where consulting, engineering, and talent meet to build meaningful digital solutions. 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