{"id":146189,"url":"https://alion.io/job/lingaro-fullstack-java-developer","title":"Fullstack Java Developer","company":{"id":53383,"name":"Lingaro","domain":"lingarogroup.com","url":"https://alion.io/company/lingaro","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Lever","truth_index":{"grade":"A","score":86,"open_postings":29,"ghost_share":0,"stale_share":0.552,"repost_share":0,"time_to_fill_p50_days":41,"computed_at":"2026-10-17T05:46:00Z"}},"role":"Backend","role_family":"Backend","seniority":"middle","employment_type":"full_time","work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"board_field","remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Poland"],"countries":["PL"],"hiring_countries":["PL"],"hiring_countries_total":1,"salary":null,"salary_estimate":{"min_usd":40000,"max_usd":78000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":36},"experience_years_min":4,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AWS","optional":false},{"name":"Azure","optional":false},{"name":"GCP","optional":false},{"name":"Git","optional":false},{"name":"Java","optional":false},{"name":"MySQL","optional":false},{"name":"Next.js","optional":false},{"name":"PostgreSQL","optional":false},{"name":"React Router","optional":false},{"name":"React.js","optional":false},{"name":"Redux","optional":false},{"name":"Docker","optional":true},{"name":"JavaScript","optional":true},{"name":"Node JS","optional":true}],"status":"live","first_seen_at":"2026-03-11T14:45:30Z","employer_posted_date":"2026-03-11","last_verified_at":"2026-10-17T19:27:08Z","board_verified":true,"closed_at":null,"days_open":220,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":219},"description":"Growth through diversity, equity, and inclusion. As an ethical business, we do what is right - including ensuring equal opportunities and fostering a safe, respectful workplace for each of us. We believe diversity fuels both personal and business growth. We're committed to building an inclusive community where all our people thrive regardless of their backgrounds, identities, or other personal characteristics.\nWhat You’ll Be Doing\nDesigning, developing, and maintaining the server-side logic of web applications. Implementing scalable and efficient server-side components and APIs. \nBuild React/Next.js based applications.\nWorking with relational and/or NoSQL databases to store and retrieve data efficiently. Designing and optimizing database schemas for performance and scalability. \nIntegrating third-party APIs and web services to enhance application functionality. Developing custom APIs to facilitate communication between front-end and back-end systems. \nImplementing security best practices to protect against common web application vulnerabilities. Conducting regular security audits and implement necessary measures. \nOptimization: optimizing server-side code for maximum speed and scalability. Monitoring and troubleshooting performance issues. \nCollaborating with front-end developers, UI/UX designers, and other team members to ensure seamless integration of components. \nUsing version control systems (e.g., Git) to manage and track changes to the codebase. \nConducting thorough testing of server-side components to identify and fix bugs. \nCollaborating with QA engineers for comprehensive testing. \nClear and comprehensive documentation for back-end systems and APIs. \nWhat We’re Looking For\nAt least 4 years of experience in a similar position.\nProficiency in Java server-side programming. \nThorough understanding of React/ Next.js core principles along with React router, hooks, Redux (or the like) workflows, Web performance and security.\nExperience with database systems (e.g., MySQL, PostgreSQL, MongoDB). \nProven experience in back-end development and building scalable web applications. \nFamiliarity with cloud platforms (e.g., AWS, Azure, GCP) is a plus. \nPrevious experience in Front-end development with Docker is plus.\nExperience with NodeJS is a plus.\nStrong analytical and problem-solving skills with attention to detail. \nEffective communication skills to collaborate with cross-functional teams. \nAbility to adapt to changing project requirements and technologies. \nEnglish at least B2.\nOffer\nStable employment. On the market since 2008, 1500+ talents currently on board in 7 global sites.\n“Office as an option” model. You can choose to work remotely or in the office. \nWorkation. Enjoy working from inspiring locations in line with our workation policy. \nGreat Place to Work® certified employer.\nFlexibility regarding working hours and your preferred form of contract.\nComprehensive online onboarding program with a “Buddy” from day 1.\nCooperation with top-tier engineers and experts.\nUnlimited access to the Udemy learning platform from day 1.\nCertificate training programs. Lingarians earn 500+ technology certificates yearly. \nUpskilling support. Capability development programs, Competency Centers, knowledge sharing sessions, community webinars, 110+ training opportunities yearly.\nGrow as we grow as a company. 76% of our managers are internal promotions. \nA diverse, inclusive, and values-driven community. \nAutonomy to choose the way you work. We trust your ideas. \nCreate our community together. Refer your friends to receive bonuses. \nActivities to support your well-being and health.\nPlenty of opportunities to donate to charities and support the environment.\n Modern office equipment. Purchased for you or available to borrow, depending on your location.","description_format":"text","description_chars":3801,"description_truncated":false,"requirements":{"experience_years_min":4,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[{"language":"English","level":"Upper-Intermediate (B2)","optional":false}]},"benefits":["Equity"],"hiring_locations":[{"name":"Poland","iso":"PL","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["AI Consulting & Integration","Analytics & BI Consulting","Data Engineering & Migration Services"],"lifecycle":[{"event":"open","at":"2026-03-11T14:45:30Z"},{"event":"open","at":"2026-09-25T16:47:13Z"}],"visa":[],"liveness":{"score":10,"band":"cold","label":"Long shot","p_open":1,"p_active":0.36,"p_room":0.28,"age_days":219,"expected_fill_days":41,"reasons":["conf:2","stale_co","velocity","win:tail","crowd:"],"computed_at":"2026-10-17T05:46:00Z"},"pay":null,"html_url":"https://alion.io/job/lingaro-fullstack-java-developer","json_url":"https://alion.io/job/lingaro-fullstack-java-developer.json","meta":{"generated_at":"2026-10-17T22:37:26Z","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":612,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-18T00:00:00Z"}},"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":53383},"rest":"https://alion.io/mcp/rest/get_company?id=53383"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Flingaro-fullstack-java-developer"},{"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%2Flingaro-fullstack-java-developer"},{"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%2Flingaro-fullstack-java-developer"},{"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/lingaro-fullstack-java-developer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Flingaro-fullstack-java-developer"}]}