{"id":984342,"url":"https://alion.io/job/cadence-design-systems-ai-engineer-ontologies-knowledge-graphs","title":"AI Engineer, Ontologies & Knowledge Graphs","company":{"id":4351,"name":"Cadence Design Systems","domain":"cadence.com","url":"https://alion.io/company/cadence","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"B","score":76,"open_postings":109,"ghost_share":0,"stale_share":0.761,"repost_share":0,"time_to_fill_p50_days":60,"computed_at":"2026-11-11T05:49:22Z"}},"role":"AI/ML","role_family":"AI/ML","seniority":null,"employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":147000,"max_usd":327000,"period":"year","method":"role_country_seniority_unknown","sample_n":4425},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AutoGen","optional":false},{"name":"CrewAI","optional":false},{"name":"Embeddings","optional":false},{"name":"ETL/ELT","optional":false},{"name":"Knowledge Graph","optional":false},{"name":"LangChain","optional":false},{"name":"LangGraph","optional":false},{"name":"Python","optional":false},{"name":"RAG","optional":false},{"name":"Rest API","optional":false}],"status":"live","first_seen_at":"2026-09-16T22:55:43Z","employer_posted_date":"2026-09-16","last_verified_at":"2026-11-11T10:42:30Z","board_verified":true,"closed_at":null,"days_open":55,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":55},"description":"At Cadence, we hire and develop leaders and innovators who want to make an impact on the world of technology.\nWe are looking for an engineer who builds the data and interface layer that makes complex software products programmatically understandable. Many powerful products expose rich but heterogeneous surfaces - source code, scripting APIs, file formats, data structures, and workflow logic. This role builds pipelines that extract and transform those surfaces into structured, queryable knowledge - designing the schemas, constructing the knowledge graphs, and exposing them through clean, typed programmatic interfaces for downstream consumption.\nJob Responsibilities\nBuild ETL/ELT pipelines that extract data from source code, APIs, file formats, and documentation and load it into a structured knowledge store.\nDesign and maintain schemas and semantic data models capturing entities, relationships, and capabilities.\nConstruct and maintain knowledge graphs over heterogeneous product data.\nDevelop source and metadata parsers (including source-code/AST parsing) to extract structure automatically.\nBuild typed programmatic interfaces and data-access layers over the knowledge layer.\nImplement retrieval and indexing layers (e.g., embeddings, RAG) over product knowledge.\nWork with domain engineers to decompose complex product workflows into discrete, callable operations.\nAssess data sources for coverage, quality, and schema completeness across multiple products.\nJob Qualifications\nBS/MS in Computer Science, Mechanical Engineering, or similar.\nStrong Python; experience building and consuming REST APIs.\nExperience building data pipelines (ETL/ELT) over structured and unstructured data.\nFamiliarity with graph databases and/or semantic/ontology modeling (RDF, OWL, property graphs, or equivalent).\nExperience with at least one agent framework (LangChain, LangGraph, AutoGen, CrewAI, or similar).\nUnderstanding of how LLMs consume context and call tools (retrieval, RAG, embeddings).\nExposure to CAE/FEA/CFD or a related physical-simulation or engineering domain.\nComfortable working within unfamiliar or undocumented codebases.\nSystems thinker - able to decompose a complex legacy workflow into discrete, callable steps.\nAdditional Skills/Preferences\nNice to have:\nVector databases.\nData-access and API interface development.\nParsing structured file formats.\nSurrogate modeling or related numerical methods.\nDeliberately not required:\nDeep or specialist domain expertise beyond working familiarity - domain engineers provide that.\nNo PhD or ML research background required.\nAdditional Information\nWorks across multiple products, building structured knowledge and interfaces over their capabilities.\nCollaborates closely with domain engineers who provide subject-matter expertise.\nWorks with data pipelines, graph databases, and product API surfaces.\nTravel is not an expectation for this role. Occasional travel may occur for broad team alignment workshops, but these are infrequent.\nWe’re doing work that matters. Help us solve what others can’t.","description_format":"text","description_chars":3059,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["EDA Software","Semiconductor IP & Chip Design Services"],"lifecycle":[{"event":"open","at":"2026-09-16T22:55:43Z"}],"visa":[{"country":"US","licensed_sponsor":true,"adverts_offering_sponsorship_24m":0,"sanctioned_now":false,"evidence":"H-1B filings in 12 months: 368 · green card filings: 176","filings_12m":368,"filings_prev_12m":268,"green_card_filings_12m":176,"median_offered_wage_usd":150882,"route":null,"cap_exempt":false,"checked_at":"2026-11-11T07:38:50+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":112}],"liveness":{"score":31,"band":"fade","label":"Fading","p_open":1,"p_active":0.519,"p_room":0.6,"age_days":55,"expected_fill_days":60,"reasons":["conf:0","stale_co","velocity","win:late","crowd:brand"],"computed_at":"2026-11-11T05:49:22Z"},"pay":null,"html_url":"https://alion.io/job/cadence-design-systems-ai-engineer-ontologies-knowledge-graphs","json_url":"https://alion.io/job/cadence-design-systems-ai-engineer-ontologies-knowledge-graphs.json","meta":{"generated_at":"2026-11-11T12:36:46Z","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":22555,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-12T00:00:00Z"}},"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":4351},"rest":"https://alion.io/mcp/rest/get_company?id=4351"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fcadence-design-systems-ai-engineer-ontologies-knowledge-graphs"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":2,"usd":0.2},"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%2Fcadence-design-systems-ai-engineer-ontologies-knowledge-graphs"},{"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%2Fcadence-design-systems-ai-engineer-ontologies-knowledge-graphs"},{"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/cadence-design-systems-ai-engineer-ontologies-knowledge-graphs\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fcadence-design-systems-ai-engineer-ontologies-knowledge-graphs"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":984342}},{"tool":"search_jobs","arguments":{"company":"cadence.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":984342},"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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