Fullstack Developer (Java/React)

Job Description

Grape Up is a consulting & technology company, helping enterprises create the most important applications by leveraging AI & cloud-native technologies and modern ways of delivering software.Grape Up is a consulting and technology company helping enterprises build mission-critical applications by leveraging AI, cloud-native technologies, and modern software delivery practices.As a member of our team, you will collaborate with both Grape Up engineers and client-side specialists to develop innovative digital products. You will be involved in building new solutions, delivering impactful features, and contributing to the continuous evolution of products used by thousands of users worldwide.Beyond day-to-day development, you will have the opportunity to influence technical decisions, shape system architecture, drive quality improvements, and promote engineering best practices across the project. Working closely with business stakeholders, product teams, and end users, you will help turn business needs into valuable, scalable solutions.At Grape Up, we believe in long-term career growth rather than short-term assignments. We provide the flexibility to explore new technologies, industries, and challenges while working on ambitious projects for global enterprises. By joining us, you will become part of a culture that values ownership, continuous learning, collaboration, and engineering excellence.ResponsibilitiesDesign, develop, and maintain modern cloud-native applications using Java and ReactDeliver new features and enhancements across the entire technology stack, from backend services to user-facing interfacesCollaborate closely with business stakeholders, Product Owners, and cross-functional teams to translate business needs into technical solutionsParticipate in system architecture discussions and contribute to technical decision-makingEnsure high software quality through code reviews, automated testing, and continuous improvement initiativesPromote engineering best practices, coding standards, and maintainable software designContinuously seek opportunities to improve development processes, tools, and the overall product qualityBe part of an Agile team that values teamwork, feedback, and continuous improvementRequirements3+ years of experience in full-stack software development using Java and ReactExperience with CI/CD pipelines and modern software delivery practicesGood understanding of RESTful APIs, microservices architecture, and distributed systemsHands-on experience in building cloud-native applications and deploying solutions to cloud environmentsUnderstanding of software design principles, testing strategies, and code quality standardsExperience in using AI/LLM-powered tools in a professional contextAbility to work effectively in Agile teams and collaborate with both technical and non-technical stakeholdersStrong problem-solving skills and a proactive approach to delivering business valueVery good command of English and Polish, both written and spoken (B2+/C1) – daily collaboration within the team takes place in EnglishNice to haveKnowledge of PythonExperience in DatabricksOpenness to (short) Business Trips, both domestic and foreignBenefitsNon-corporate work environment among experienced engineersIndividual growth & development plan supported by cyclical feedback sessionsAccess to knowledge platforms (e.g. Pluralsight)Equipment of your choiceFinancing of conferences, external trainings, and certificationsLanguage lessons (English, German and Polish for foreigners)LuxMed private medical careWeekly Lunch & Learn where we meet up in the office, lunch together, and share our knowledgeEmployee referral programRewards for the success of the month and year awarded by our employeesSpecial rewards for your years with us (G-Man)Integration activities