{"id":3535657,"url":"https://alion.io/job/silk-software-house-senior-fullstack-developer-2","title":"Senior Fullstack Developer","company":{"id":881,"name":"Silk Software House","domain":"silksoftwarehouse.pl","url":"https://alion.io/company/silk-software-house","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":null,"truth_index":null},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"contractor","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Warsaw, Poland"],"countries":["PL"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":56000,"max_usd":93000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":352},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Java","optional":false},{"name":"Nest.JS","optional":false},{"name":"Next.js","optional":false},{"name":"Node JS","optional":false},{"name":"PostgreSQL","optional":false},{"name":"React.js","optional":false},{"name":"TypeScript","optional":false},{"name":"JavaScript","optional":true}],"status":"live","first_seen_at":"2026-10-30T14:34:07Z","employer_posted_date":null,"last_verified_at":"2026-10-30T14:34:07Z","board_verified":false,"closed_at":null,"days_open":2,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":2},"description":"📍 Warsaw (Onsite – near Metro Plac Wilsona)\n💼 B2B\n\nAbout Silk Software House\nWe build modern, scalable applications with fintech-grade reliability and strong backend architecture. Our projects focus on high-performance web platforms and integrations using Java Spring and Node.js ecosystems.\n\nYour Role\nAs a Fullstack Developer, you’ll primarily work with Node.js on the backend, React on the frontend, sometimes also with Next.js\n\nResponsibilities\nDevelop backend services with Node.js (NestJS/Express)*\n\nBuild frontend apps with React/Next.js + TypeScript*\n\nWork with databases (PostgreSQL, MongoDB) and APIs\n\nCollaborate with design and backend teams\n\nRequirements\nStrong backend skills in Node.js/NestJS\n\nAt least 5 years of experience in backend applications\n\nAt least 2 years of experience in maintaining production applications\n\nSolid frontend skills in React + TypeScript\n\nDatabase and API integration knowledge\n\nExperience mentoring mid/junior developers\n\nAbility to work 100% onsite from our office near Metro Plac Wilsona, Warsaw\n\nNice-to-have\nMicroservices and cloud deployment experience\n\nRates (B2B/Freelance)\nSenior: 120 - 180 PLN/h\n\nRecruitment Process\n1. Intro Call (30 min) – Quick chat about your experience, expectations, and our projects.\n2. Technical Interview / Task – Backend (Node.js) and frontend (React) focus.\n3. Final Meeting – Culture/fit + project discussion.\n4. Offer – Fast decision if it’s a match.\n5. Process usually takes 2–3 weeks.\n6. Feedback after each stage within a few days\n\nTech stack\nTypeScript\nNode.js\nNext.js\nReact","description_format":"text","description_chars":1560,"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":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Custom Software Development","IT Staffing & Staff Augmentation"],"lifecycle":[{"event":"open","at":"2026-10-30T17:25:30Z"}],"visa":[],"liveness":{"score":86,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.86,"p_room":1,"age_days":1,"expected_fill_days":28,"reasons":["seen:1","win:early"],"computed_at":"2026-11-01T06:10:25Z"},"pay":null,"html_url":"https://alion.io/job/silk-software-house-senior-fullstack-developer-2","json_url":"https://alion.io/job/silk-software-house-senior-fullstack-developer-2.json","meta":{"generated_at":"2026-11-01T19:12:15Z","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":29341,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-02T00:00:00Z"}},"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":881},"rest":"https://alion.io/mcp/rest/get_company?id=881"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fsilk-software-house-senior-fullstack-developer-2"},{"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%2Fsilk-software-house-senior-fullstack-developer-2"},{"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%2Fsilk-software-house-senior-fullstack-developer-2"},{"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/silk-software-house-senior-fullstack-developer-2\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fsilk-software-house-senior-fullstack-developer-2"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3535657}},{"tool":"search_jobs","arguments":{"company":"silksoftwarehouse.pl","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3535657},"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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