{"id":2113079,"url":"https://alion.io/job/link-group-mid-react-developer-3","title":"Mid React Developer","company":{"id":3913591,"name":"Link Group","domain":"linkgroup.pl","url":"https://alion.io/company/link-group-2","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":null,"truth_index":null},"role":"Frontend","role_family":"Frontend","seniority":"middle","employment_type":"contractor","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Poland"],"countries":["PL"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":13000,"max":16500,"currency":"PLN","period":"month","gross":null,"usd_annual":50652},"salary_estimate":null,"experience_years_min":3,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Git","optional":false},{"name":"GraphQL","optional":false},{"name":"JavaScript","optional":false},{"name":"Jest","optional":false},{"name":"React.js","optional":false},{"name":"Redux","optional":false},{"name":"State Management","optional":false},{"name":"TypeScript","optional":false},{"name":"Agile","optional":true},{"name":"AWS","optional":true},{"name":"Azure","optional":true},{"name":"Babel","optional":true},{"name":"CI/CD","optional":true},{"name":"Docker","optional":true},{"name":"GCP","optional":true},{"name":"Next.js","optional":true},{"name":"Scrum","optional":true},{"name":"Webpack","optional":true}],"status":"live","first_seen_at":"2026-09-16T22:00:55Z","employer_posted_date":null,"last_verified_at":"2026-09-16T22:00:55Z","board_verified":false,"closed_at":null,"days_open":30,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":30},"description":"At Link Group, we specialize in building tech teams for Fortune 500 companies and some of the world's most exciting startups. Our mission is to connect talented professionals with opportunities that align with their skills, interests, and career aspirations.\n\nWe are currently looking for a Mid React Developer to join our team and work on innovative front-end solutions for global clients.\n\nAbout the Project\nThe project involves developing high-performance web applications for the finance/stock exchange industry. You will work on building scalable, user-friendly interfaces using React.js and the latest front-end technologies.\n\nTech Stack\n\nReact.js, TypeScript, Redux\n\nJavaScript (ES6+), HTML5, CSS3\n\nRESTful APIs, GraphQL\n\nGit, Webpack, Babel\n\nTesting frameworks (Jest, Cypress, React Testing Library)\n\nCI/CD pipelines, Docker\n\nWhat We Offer\n\nTailored opportunities to match your professional interests and goals.\n\nA dynamic and collaborative work environment.\n\nAccess to exciting and diverse projects for global clients.\n\nCompetitive compensation aligned with your expertise.\n\nOngoing opportunities for professional growth and development in front-end technologies.\n\nIf you’re passionate about building modern, scalable web applications, we’d love to hear from you!\n\nApply today and join us at Link Group to make an impact!\nZakres obowiązków\nDevelop and maintain high-quality web applications using React.js.\nCollaborate with UI/UX designers and back-end developers to create seamless user experiences.\nOptimize applications for speed, scalability, and responsiveness.\nEnsure code quality by writing clean, maintainable, and testable code.\nDebug and resolve front-end issues in a timely manner.\nStay up-to-date with the latest front-end trends and best practices.\nWymagania\n\nAt least 3+ years of experience as a front-end developer.\n\nStrong proficiency in React.js, JavaScript (ES6+), and TypeScript.\n\nExperience with state management libraries such as Redux.\n\nFamiliarity with RESTful APIs and GraphQL.\n\nSolid understanding of responsive design and cross-browser compatibility.\n\nKnowledge of version control tools like Git.\n\nStrong problem-solving and debugging skills.\n\nGood command of English.\n\nNice to Have\n\nExperience with Next.js or other React frameworks.\n\nFamiliarity with unit and integration testing (Jest, Cypress, React Testing Library).\n\nKnowledge of performance optimization techniques.\n\nExperience working in Agile/Scrum teams.\n\nBackground in working with cloud platforms such as AWS, GCP, or Azure.\n\nTech stack\nReact\nJavaScript\nTypeScript\nRedux\nREST API\nGraphQL\nGit\nNext.js\nIntegration test\nCypress\nTesting\nAgile\nScrum\nCloud platform\nAWS\nGCP\nAzure","description_format":"text","description_chars":2670,"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":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":[],"lifecycle":[{"event":"open","at":"2026-10-08T22:25:03Z"}],"visa":[],"liveness":{"score":23,"band":"cold","label":"Long shot","p_open":0.6,"p_active":0.707,"p_room":0.55,"age_days":30,"expected_fill_days":30,"reasons":["seen:30","velocity","win:tail"],"computed_at":"2026-10-17T05:46:00Z"},"pay":{"stated_usd_annual":50652,"is_top_pay":false},"html_url":"https://alion.io/job/link-group-mid-react-developer-3","json_url":"https://alion.io/job/link-group-mid-react-developer-3.json","meta":{"generated_at":"2026-10-17T07:53:11Z","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":10641,"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":3913591},"rest":"https://alion.io/mcp/rest/get_company?id=3913591"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Flink-group-mid-react-developer-3"},{"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%2Flink-group-mid-react-developer-3"},{"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%2Flink-group-mid-react-developer-3"},{"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/link-group-mid-react-developer-3\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Flink-group-mid-react-developer-3"}]}