{"id":587139,"url":"https://alion.io/job/amazon-jobs-senior-backend-engineer","title":"Senior Backend Engineer","company":{"id":19,"name":"Amazon","domain":"amazon.com","url":"https://alion.io/company/amazon","size_band":"1-10","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Career site","truth_index":{"grade":"B","score":78,"open_postings":4588,"ghost_share":0,"stale_share":0.886,"repost_share":0.002,"time_to_fill_p50_days":27,"computed_at":"2026-11-06T05:58:05Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":null,"work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"inferred","locations":[],"countries":[],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":4,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Anthropic","optional":false},{"name":"CI/CD","optional":false},{"name":"Claude","optional":false},{"name":"Copilot","optional":false},{"name":"Cursor","optional":false},{"name":"Docker","optional":false},{"name":"Embeddings","optional":false},{"name":"Fastify","optional":false},{"name":"Function Calling","optional":false},{"name":"Git","optional":false},{"name":"GraphQL","optional":false},{"name":"JavaScript","optional":false},{"name":"LangChain","optional":false},{"name":"LlamaIndex","optional":false},{"name":"LLM","optional":false},{"name":"LLM Guardrails","optional":false},{"name":"Nest.JS","optional":false},{"name":"Node JS","optional":false},{"name":"OpenAI","optional":false},{"name":"pgvector","optional":false},{"name":"Pinecone","optional":false},{"name":"PostgreSQL","optional":false},{"name":"Prompt Engineering","optional":false},{"name":"Qdrant","optional":false},{"name":"RAG","optional":false},{"name":"Redis","optional":false},{"name":"Semantic Search","optional":false},{"name":"TypeScript","optional":false},{"name":"Vercel AI SDK","optional":false},{"name":"Weaviate","optional":false}],"status":"live","first_seen_at":"2026-09-10T06:26:38Z","employer_posted_date":null,"last_verified_at":"2026-09-10T06:26:38Z","board_verified":false,"closed_at":null,"days_open":57,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":57},"description":"We are looking for a Senior Backend Engineer who builds fast, reliable systems and treats AI as a first-class engineering tool, not a buzzword. You will design and ship production-grade backend services in Node.js, and integrate modern AI capabilities (LLMs, RAG, agents, embeddings) into real product workflows. This is a hands-on role for someone who writes clean code, owns systems end-to-end, and uses AI to move faster without compromising quality.\nResponsibilities:\nDesign, build, and scale backend services and REST/GraphQL APIs using Node.js (Express / NestJS / Fastify).\nIntegrate LLM-powered features into products, RAG pipelines, semantic search, chat/agent workflows, and structured AI outputs.\nWork with vector databases (pgvector, Pinecone, Weaviate, Qdrant) and embedding models for retrieval and recommendation.\nArchitect data layers across PostgreSQL, Redis, and NoSQL stores, with a focus on performance and low latency.\nBuild and consume APIs from AI providers (OpenAI, Anthropic, Bedrock, etc. ) with proper cost, latency, and reliability controls.\nUse AI-assisted development tools (Copilot, Claude, Cursor) to ship higher-quality code faster.\nWrite tests, set up CI/CD, and own services in production monitoring, logging, and incident response, including.\nCollaborate with product, frontend, and data teams to turn requirements into well-architected systems.\nRequirements:\nMust-have items are required from day one.\nRequired items are expected within your first month. Optional items are a strong plus.\n4-5 years of professional backend development experience, primarily in Node.js / TypeScript.\nStrong grasp of JavaScript/TypeScript fundamentals, async patterns, and event-driven architecture.\nSolid experience designing and scaling RESTful and/or GraphQL APIs.\nProven experience with relational and NoSQL databases (PostgreSQL, MongoDB) and caching with Redis.\nHands-on experience integrating at least one LLM/AI API into a real product or feature.\nComfortable with Docker, Git, and CI/CD pipelines.\nUnderstanding of system design, scalability, and security best practices.\nAI-Native Skills (Strongly Preferred):\nPractical experience building RAG pipelines or retrieval systems with vector databases.\nFamiliarity with prompt engineering, function/tool calling, and structuring reliable LLM outputs.\nExperience with AI frameworks such as LangChain, LlamaIndex, or the Vercel AI SDK.\nAwareness of LLM cost optimisation, token management, streaming, and evaluation/guardrails.\nDaily use of AI coding assistants as part of a real engineering workflow.","description_format":"text","description_chars":2571,"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":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":[],"lifecycle":[{"event":"open","at":"2026-09-10T06:26:38Z"}],"visa":[{"country":"US","licensed_sponsor":true,"evidence":"H-1B filings in 12 months: 16,768 · green card filings: 56","filings_12m":16768,"filings_prev_12m":16262,"green_card_filings_12m":56,"median_offered_wage_usd":162609,"route":null,"cap_exempt":false,"checked_at":"2026-10-29T16:27:21+00:00","sources":["US Department of Labor: LCA disclosure data (H-1B, H-1B1, E-3)","US Department of Labor: PERM disclosure data (green cards)"],"filings_for_role_12m":8437},{"country":"GB","licensed_sponsor":true,"evidence":"Licensed UK visa sponsor (Senior or Specialist Worker, Graduate Trainee, Skilled Worker)","filings_12m":null,"filings_prev_12m":null,"green_card_filings_12m":null,"median_offered_wage_usd":null,"route":"Global Business Mobility: Senior or Specialist Worker; 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Docs: https://alion.io/developers"}}