{"id":4309328,"url":"https://alion.io/job/adaptiq-senior-back-end-engineer-node-js-adaptiq","title":"Senior Back End Engineer (Node.js) - Adaptiq","company":{"id":4485822,"name":"Adaptiq","domain":"adaptiq.co","url":"https://alion.io/company/adaptiq","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Schema","truth_index":null},"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":["Warsaw, Poland"],"countries":["PL"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":7,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"CI/CD","optional":false},{"name":"Docker","optional":false},{"name":"Kubernetes","optional":false},{"name":"Node JS","optional":false},{"name":"PostgreSQL","optional":false},{"name":"React.js","optional":false},{"name":"SQL","optional":false},{"name":"TypeScript","optional":false},{"name":"JavaScript","optional":true}],"status":"live","first_seen_at":"2026-10-20T00:00:00Z","employer_posted_date":"2026-10-28","last_verified_at":"2026-11-14T10:52:54Z","board_verified":true,"closed_at":null,"days_open":25,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":25},"description":"We are looking for an experienced Senior Back End Engineer to join a product engineering team working on complex, large-scale software systems. This is a predominantly backend-focused role, with occasional frontend development whenResponsibilities\nDesign, develop, and maintain scalable production backend services using TypeScript and Node.js.\nTake ownership of system-design decisions for new capabilities and ensure seamless integration with existing infrastructure.\nCollaborate with product and engineering teams to understand requirements and translate them into effective technical solutions.\nDesign and optimize PostgreSQL queries, indexes, and database performance.\nContribute to React-based frontend functionality when\nExperience\n7+ years of professional backend development experience building production systems at scale, with a strong understanding of distributed systems.\nStrong hands-on expertise in TypeScript and Node.js, including developing and maintaining complex backend services.\nSolid system-design skills, with the ability to evaluate architectural options and explain technical decisions and trade-offs.\nStrong PostgreSQL expertise, including complex SQL queries, query optimization, indexing, and performance tuning.\nFamiliarity with React and willingness to contribute to frontend development when necessary; \nFamiliarity with CI/CD, Docker or Kubernetes, and observability, with an understanding of the deployment lifecycle.\nAbility to work independently, collaborate across engineering teams;\nStrong product-oriented thinking and the ability to connect technical decisions with business and user needs.","description_format":"text","description_chars":1630,"description_truncated":false,"requirements":{"experience_years_min":7,"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":["Artificial Intelligence","Cybersecurity","Transportation & Logistics"],"lifecycle":[{"event":"open","at":"2026-11-14T10:52:54Z"}],"visa":[],"liveness":{"score":33,"band":"fade","label":"Fading","p_open":1,"p_active":0.742,"p_room":0.45,"age_days":25,"expected_fill_days":17,"reasons":["conf:4","win:tail"],"computed_at":"2026-11-14T15:24:15Z"},"pay":null,"html_url":"https://alion.io/job/adaptiq-senior-back-end-engineer-node-js-adaptiq","json_url":"https://alion.io/job/adaptiq-senior-back-end-engineer-node-js-adaptiq.json","meta":{"generated_at":"2026-11-14T15:24:15Z","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":16935,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-15T00:00:00Z"}},"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":4485822},"rest":"https://alion.io/mcp/rest/get_company?id=4485822"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fadaptiq-senior-back-end-engineer-node-js-adaptiq"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"free","price":{"credits":0,"usd":0},"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%2Fadaptiq-senior-back-end-engineer-node-js-adaptiq"},{"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%2Fadaptiq-senior-back-end-engineer-node-js-adaptiq"},{"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/adaptiq-senior-back-end-engineer-node-js-adaptiq\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fadaptiq-senior-back-end-engineer-node-js-adaptiq"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":4309328}},{"tool":"search_jobs","arguments":{"company":"adaptiq.co","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":4309328},"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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