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You will drive technical decisions, mentor fellow engineers, and partner closely with cross-functional teams to shape high-quality solutions that address strategic business and user needs.\nThis role offers a hybrid model, with 3 days per week working from our office in Kraków.\nResponsibilities\nArchitect, build, and maintain enterprise-grade web applications using React and Java\nDesign, develop, and evolve REST APIs, ensuring scalability, security, and maintainability\nDefine and optimize database solutions using PostgreSQL, including advanced query tuning and data modeling\nEstablish and promote best practices for writing clean, maintainable, and well-tested code\nLead code reviews, troubleshoot complex issues, and guide testing and debugging strategies\nCollaborate with product, QA, and engineering teams to define technical direction and deliver impactful features\nMentor mid-level and junior developers, fostering technical growth within the team\nContribute to architectural discussions and influence long-term technology choices\nRequirements\n3+ years of experience in full-stack development\nStrong proficiency in React and modern JavaScript/TypeScript, including state management and performance optimization\nSolid background in Java backend development, with deep expertise in Spring and Spring Boot\nProven experience designing, building, and scaling RESTful APIs\nAdvanced knowledge of PostgreSQL, including schema design, complex queries, indexing, and performance tuning\nHands-on experience with Git, CI/CD pipelines, and agile methodologies\nDemonstrated ability to lead technical initiatives and mentor other engineers\nEnglish proficiency at an Upper-Intermediate level (B2) or higher\nNice to have\nSolid experience with Docker and CI/CD automation\nHands-on experience with cloud platforms (Azure preferred)\nExposure to microservices architecture and distributed systems\nExperience with system design and architectural decision-making at scale\nWe offer\nWe gather like-minded people:\nTop tech minds driving innovation in AI, cloud and digital platform modernization\nSupportive team and agile, startup-like culture\nHybrid by design mode and opportunity to work remotely within Poland\nChance to work abroad for up to 60 days annually\nBusiness-driven relocation opportunities\n\nWe provide growth opportunities:\nCareer development programs\nThought leadership, mentoring, soft skills and well-being programs\nCertification (Anthropic, Gemini, GCP, Azure, AWS)\nEnglish classes\n\nWe cover it all:\nStable pay\nParticipation in the Employee Stock Purchase Plan with a 15% discount\nBenefits package (health insurance, multisport, shopping vouchers)\nReferral bonuses up to $2,000\nOffices featuring entertainment and relaxation zones, table tennis and football, free snacks, coffee and more\nCorporate, social and well-being events\n\nPlease, note:\nBenefits listed above are available to employees only\nWe are open for working with Contractors. Terms of B2B cooperation agreements are agreed individually\nWe will reach out to selected candidates exclusively\n\nEPAM is global leader in AI transformation engineering and integrated consulting, serving Forbes Global 2000 companies and ambitious startups. With over thirty years of expertise in custom software, product and platform engineering, we empower our clients to become AI-Native enterprises, driving measurable value from innovation and digital investments.","description_format":"text","description_chars":3647,"description_truncated":false,"requirements":{"experience_years_min":3,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[{"language":"English","level":"Advanced (C1)","optional":false}]},"benefits":["Growth opportunities","Health insurance"],"hiring_locations":[{"name":"Poland","iso":"PL","kind":"country"}],"hiring_excludes":[],"relocation_offered":true,"industries":[],"lifecycle":[{"event":"open","at":"2026-10-07T18:40:34Z"}],"visa":[],"liveness":{"score":90,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.903,"p_room":1,"age_days":2,"expected_fill_days":12,"reasons":["seen:2","velocity","win:early","comp:brand"],"computed_at":"2026-10-10T05:45:15Z"},"pay":null,"html_url":"https://alion.io/job/epam-systems-poland-senior-java-full-stack-developer-with-react","json_url":"https://alion.io/job/epam-systems-poland-senior-java-full-stack-developer-with-react.json","meta":{"generated_at":"2026-10-11T21:28:39Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":10377,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-12T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":2612641},"rest":"https://alion.io/mcp/rest/get_company?id=2612641"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fepam-systems-poland-senior-java-full-stack-developer-with-react"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fepam-systems-poland-senior-java-full-stack-developer-with-react"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fepam-systems-poland-senior-java-full-stack-developer-with-react"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/epam-systems-poland-senior-java-full-stack-developer-with-react\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fepam-systems-poland-senior-java-full-stack-developer-with-react"}]}