{"id":2215504,"url":"https://alion.io/job/luxoft-senior-full-stack-javareact-engineer","title":"Senior Full Stack (Java/React) Engineer","company":{"id":171185,"name":"Luxoft","domain":"luxoft.com","url":"https://alion.io/company/luxoft","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Career sitemap","truth_index":{"grade":"A","score":85,"open_postings":8,"ghost_share":0,"stale_share":0.5,"repost_share":0.5,"time_to_fill_p50_days":11,"computed_at":"2026-10-12T06:55:09Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Kraków, Poland"],"countries":["PL"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":69000,"max_usd":115000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":312},"experience_years_min":8,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Agile","optional":false},{"name":"Azure","optional":false},{"name":"CI/CD","optional":false},{"name":"Copilot","optional":false},{"name":"Git","optional":false},{"name":"JavaScript","optional":false},{"name":"Jest","optional":false},{"name":"JUnit","optional":false},{"name":"Kanban","optional":false},{"name":"LLM","optional":false},{"name":"OpenAI","optional":false},{"name":"Prompt Engineering","optional":false},{"name":"React.js","optional":false},{"name":"Scrum","optional":false},{"name":"Spring Boot","optional":false},{"name":"SQL","optional":false},{"name":"TypeScript","optional":false},{"name":"AI Agents","optional":true},{"name":"Java","optional":true},{"name":"Linux","optional":true},{"name":"RAG","optional":true},{"name":"Unix","optional":true}],"status":"live","first_seen_at":"2026-10-10T07:05:10Z","employer_posted_date":null,"last_verified_at":"2026-10-10T07:05:10Z","board_verified":false,"closed_at":null,"days_open":2,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":2},"description":"We're looking for a senior Full-Stack Developer (Java + React) to join our client's team and help build a new AI-enabled application platform. The team works with modern AI-assisted tools such as GitHub Copilot and generative AI, and cares about clean code, agile methods and high-quality delivery. The client is in the investment banking industry, and the platform supports collateral and margin management.\n\nDesign, develop and maintain scalable back-end services and APIs using Java (Spring Boot)\n\nBuild responsive, high-performance front-end applications using React and TypeScript\n\nUse AI-assisted development tools such as GitHub Copilot to speed up delivery while keeping quality and security high\n\nDesign and integrate generative AI features into business applications, including prompt engineering, LLM integration and evaluation of model outputs\n\nDefine and consume RESTful APIs, and communicate requirements and constraints clearly across teams\n\nAdvise and guide the team on architecture, design decisions and best practices, including the responsible use of AI tools\n\nMentor developers and raise the team's technical level through code reviews and pair programming\n\nTranslate business and product requirements into robust end-to-end technical solutions\n\nApply clean code principles and help improve engineering standards, tooling and CI/CD pipelines\n\nWrite and maintain automated tests (unit, integration, end-to-end) on both front end and back end\n\nTake an active part in agile ceremonies (Scrum/Kanban), including refinement, planning, reviews and retrospectives\n\nWork closely with QA, product managers, architects and business stakeholders to deliver high-quality work that fits business needs\n\nSupport and improve existing applications in a fast-paced, enterprise investment-banking environment\nWymagania\nMUST At least 8 years of professional software development experience, including long-term projects\n\nStrong hands-on experience with Java (Java 11+) and Spring / Spring Boot\n\nStrong hands-on experience with React, TypeScript/JavaScript, HTML and CSS\n\nProven experience delivering full-stack features end to end, from UI to back-end services and the database\n\nHands-on experience with GitHub Copilot or similar AI coding assistants in daily development\n\nPractical knowledge of generative AI and prompt engineering, including integrating LLM APIs (e.g. OpenAI, Azure OpenAI) into applications\n\nStrong SQL skills and experience with relational databases\n\nExperience in automated testing (JUnit, Jest, React Testing Library or similar)\n\nFamiliarity with CI/CD pipelines and Git-based workflows\n\nClean coding skills\n\nExcellent problem-solving skills\n\nFamiliarity with agile practices (Scrum, Kanban, etc.)\n\nGood communication skills and the ability to state requirements clearly to other teams\n\nNICE TO HAVE .Hands-on experience with Sybase (ASE and/or IQ), including stored procedures and performance tuning\n\nKnowledge of the collateral management and margin domain (e.g. margin calls, ISDA/CSA, initial and variation margin, SIMM)\n\nExperience in investment banking or capital markets\n\nExposure to RAG architectures, vector databases or AI agent frameworks\n\nWorking knowledge of Unix/Linux and shell 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