{"id":3974488,"url":"https://alion.io/job/grid-dynamics-full-stack-software-engineer-javareact","title":"Full-Stack Software Engineer (Java+React)","company":{"id":1625,"name":"Grid Dynamics","domain":"griddynamics.com","url":"https://alion.io/company/grid-dynamics-poland","size_band":"501-1000","is_staffing_agency":false,"employer_type":"services","is_intermediary":false,"listed_via":null,"ats_vendor":"Career sitemap","truth_index":null},"role":"Backend","role_family":"Backend","seniority":null,"employment_type":"contractor","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Warsaw, Poland","Wrocław, Poland"],"countries":["PL"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Agile","optional":false},{"name":"CI/CD","optional":false},{"name":"Docker","optional":false},{"name":"Git","optional":false},{"name":"GitHub","optional":false},{"name":"GitHub Actions","optional":false},{"name":"Gradle","optional":false},{"name":"Hibernate","optional":false},{"name":"JavaScript","optional":false},{"name":"Jenkins","optional":false},{"name":"Jest","optional":false},{"name":"JUnit","optional":false},{"name":"Maven","optional":false},{"name":"Mockito","optional":false},{"name":"MySQL","optional":false},{"name":"npm","optional":false},{"name":"PostgreSQL","optional":false},{"name":"React.js","optional":false},{"name":"Redux","optional":false},{"name":"Redux Toolkit","optional":false},{"name":"Rest API","optional":false},{"name":"Scrum","optional":false},{"name":"Spring Boot","optional":false},{"name":"Spring Data JPA","optional":false},{"name":"Spring Framework","optional":false},{"name":"Spring Security","optional":false},{"name":"SQL","optional":false},{"name":"State Management","optional":false},{"name":"Swagger","optional":false},{"name":"TypeScript","optional":false},{"name":"Java","optional":true},{"name":"Kotlin","optional":true},{"name":"Material UI","optional":true},{"name":"Next.js","optional":true},{"name":"PCI DSS","optional":true},{"name":"Tailwind CSS","optional":true}],"status":"live","first_seen_at":"2026-11-09T15:16:38Z","employer_posted_date":null,"last_verified_at":"2026-11-09T15:16:38Z","board_verified":false,"closed_at":null,"days_open":0,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":0},"description":"We are seeking a Full-Stack Java/React Engineer to join an engineering pod delivering modern digital payment and transaction-processing solutions for a global leader in digital payments, card issuance, and financial transaction processing. In this role, you will contribute across the full application lifecycle—architecting resilient microservices and responsive micro frontend interfaces, integrating mission-critical RESTful APIs, and implementing robust enterprise security protocols that process high-volume, secure financial operations at global scale.\nResponsibilities:\nFull-Stack Feature Delivery: Design, implement, and maintain scalable full-stack features using Java, Spring Boot, React, and TypeScript across distributed microservices and micro frontends.\n\nAPI & System Integration: Architect and integrate robust RESTful APIs with OpenAPI/Swagger specifications, ensuring high-throughput data exchange and backward compatibility across payment systems.\n\nData Persistence & Modeling: Design relational schemas, write optimized SQL queries, and implement reliable persistence layers using Spring Data JPA and Hibernate for PostgreSQL or MySQL.\n\nSecurity & Authentication Implementation: Enforce stringent fintech-grade authentication, authorization, and data-protection mechanisms using Spring Security, OAuth 2.0, and JWT.\n\nAutomated Testing & Quality Gates: Write comprehensive unit and integration tests across the stack (Jest, React Testing Library, JUnit, Mockito, Spring Boot Test) to maintain strict code quality standards.\n\nCI/CD & Containerization: Package applications into Docker containers and configure automated CI/CD pipelines via GitHub Actions or Jenkins within an Agile/Scrum workflow.\n\nMin requirements:\nFrontend Engineering: Strong hands-on experience with JavaScript (ES6+), TypeScript, HTML5, CSS3, React, and state management via Redux / Redux Toolkit.\n\nBackend Development: Solid commercial background in Java (8+ / 11+ / 17+), Spring Boot, and the core Spring Framework ecosystem.\n\nData Access & Databases: Hands-on experience with relational databases (PostgreSQL or MySQL), SQL optimization, Spring Data JPA, and Hibernate.\n\nAPI Standards & Architecture: Proven track record of developing and consuming REST APIs, handling JSON serialization, and using OpenAPI/Swagger within a microservices architecture.\n\nApplication Security: Working knowledge of Spring Security, OAuth 2.0, JWT, and role-based access control.\n\nAutomated Testing: Practical experience writing tests with Jest and React Testing Library on the frontend, alongside JUnit, Mockito, and Spring Boot Test on the backend.\n\nDevOps & Version Control: Proficiency with Git, GitHub, build tools (Maven or Gradle, npm), Docker containerization, and CI/CD pipelines (GitHub Actions or Jenkins).\n\nAgile Delivery: Experience working autonomously within a collaborative Scrum/Agile delivery framework.\n\nWould be a plus:\nNext.js & Advanced UI Frameworks: Familiarity with Next.js (SSR/SSG), Material UI, or Tailwind CSS for modular UI components.\n\nMicro Frontends Architecture: Experience designing, decomposing, or maintaining micro frontend architectures at enterprise scale.\n\nFintech & Payment Systems: Background in payment processing, financial transactions, PCI DSS compliance, or transactional ledger systems.\n\nPerformance Tuning: Experience profiling and optimizing full-stack application performance, database query latency, and web vitals.\n\nWe offer:\nOpportunity to work on bleeding-edge projects\n\nWork with a highly motivated and dedicated team\n\nCompetitive salary\n\nFlexible schedule\n\nBenefits package - medical insurance, sports\n\nCorporate social events\n\nProfessional development opportunities\n\nWell-equipped office\n\nAbout us:\nGrid Dynamics (NASDAQ: GDYN) is a leading provider of technology consulting, platform and product engineering, AI, and advanced analytics services. Fusing technical vision with business acumen, we solve the most pressing technical challenges and enable positive business outcomes for enterprise companies undergoing business transformation. A key differentiator for Grid Dynamics is our 8 years of experience and leadership in enterprise AI, supported by profound expertise and ongoing investment in data, analytics, cloud & DevOps, application modernization and customer experience. Founded in 2006, Grid Dynamics is headquartered in Silicon Valley with offices across the Americas, Europe, and India.\n\nTech stack\nJava\nReact","description_format":"text","description_chars":4455,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["Flexible schedule","Health insurance","Professional development"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["IT Outsourcing & Dedicated Teams","Custom Software Development","AI Consulting & Integration","Cloud Consulting & Migration"],"lifecycle":[{"event":"open","at":"2026-11-09T17:26:20Z"}],"visa":[],"liveness":{"score":86,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.86,"p_room":1,"age_days":0,"expected_fill_days":8,"reasons":["seen:0","win:early"],"computed_at":"2026-11-09T20:00:46Z"},"pay":null,"html_url":"https://alion.io/job/grid-dynamics-full-stack-software-engineer-javareact","json_url":"https://alion.io/job/grid-dynamics-full-stack-software-engineer-javareact.json","meta":{"generated_at":"2026-11-09T20:00:46Z","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":6668,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-10T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.1,"usd":0.01,"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":1625},"rest":"https://alion.io/mcp/rest/get_company?id=1625"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fgrid-dynamics-full-stack-software-engineer-javareact"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":2,"usd":0.2},"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%2Fgrid-dynamics-full-stack-software-engineer-javareact"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.1,"usd":0.01},"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%2Fgrid-dynamics-full-stack-software-engineer-javareact"},{"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/grid-dynamics-full-stack-software-engineer-javareact\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fgrid-dynamics-full-stack-software-engineer-javareact"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3974488}},{"tool":"search_jobs","arguments":{"company":"griddynamics.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3974488},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); https://alion.io/mcp with an Alion account has everything. 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