{"id":557441,"url":"https://alion.io/job/interimage-senior-ontology-engineer","title":"Senior Ontology Engineer","company":{"id":5758,"name":"InterImage","domain":"iimage.com","url":"https://alion.io/company/interimage","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workable","truth_index":{"grade":"A","score":95,"open_postings":35,"ghost_share":0,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":147,"computed_at":"2026-10-28T05:59:10Z"}},"role":"Industrial Engineering","role_family":"Industrial Engineering","seniority":"senior","employment_type":"full_time","work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"board_field","remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["United States"],"countries":["US"],"hiring_countries":["US"],"hiring_countries_total":1,"salary":null,"salary_estimate":{"min_usd":92000,"max_usd":175000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":713},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Apache HTTP Server","optional":false},{"name":"AWS","optional":false},{"name":"Git","optional":false},{"name":"Knowledge Graph","optional":false},{"name":"Python","optional":false},{"name":"RAG","optional":false},{"name":"Scrum","optional":false}],"status":"live","first_seen_at":"2026-09-08T00:00:00Z","employer_posted_date":"2026-09-08","last_verified_at":"2026-10-28T19:02:45Z","board_verified":true,"closed_at":null,"days_open":50,"trust":{"level":"ok","repost_count":0,"flags":["company_stale"],"days_open":50},"description":"PixelRain AI is a small, fast-moving AI company delivering an AI-powered product-lifecycle knowledge platform for a U.S. Department of War (DoW) customer: governed ingestion of technical documents, an enterprise ontology and knowledge graph, and generative-AI applications that draft maintenance-planning products and answer engineering questions with citations - running in the customer's cloud environment, with an offline variant for disconnected use. Small team, real users, working software demonstrated every sprint.\nSalary: 175,000 - 228,000\nActive US Security Clearance Required\nWhat you'll do\nDesign, build, and maintain the enterprise ontology (BFO/CCO-aligned) and controlled vocabularies, and map source-system data into them.\nBuild and manage the knowledge graph: RDF triple store (Apache Jena/Fuseki or similar), SHACL validation, SPARQL queries.\nBuild the governed ingestion path so extracted content lands in the graph with provenance and confidence, and connect the graph to retrieval and GenAI applications.\nCarry normal full-stack development work alongside the ontology work - Python services, web UI, AWS.\nWork in a small Scrum team; demo working software every sprint.\nRequirements\n Active Secret OR Top Secret Clearance Required\n5+ years of hands-on semantic-technology work: OWL, RDF/Turtle, SHACL, and SPARQL.\nExperience building ontologies aligned to an upper ontology - BFO and CCO strongly preferred.\nProduction experience with a triple store (Apache Jena/Fuseki, RDF4J, or similar).\nSolid general software engineering: Python, APIs, Git - able to handle full-stack tasks (web + AWS), not ontology-only.\nWorking familiarity with LLMs and RAG - you’ve connected structured knowledge to generative applications.","description_format":"text","description_chars":1737,"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":true,"languages":[]},"benefits":[],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Digital Government","IT Consulting & Digital Transformation"],"lifecycle":[{"event":"open","at":"2026-09-08T23:42:33Z"}],"visa":[],"liveness":{"score":92,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.916,"p_room":1,"age_days":50,"expected_fill_days":147,"reasons":["conf:0","urgency","velocity","win:early"],"computed_at":"2026-10-28T05:59:10Z"},"pay":null,"html_url":"https://alion.io/job/interimage-senior-ontology-engineer","json_url":"https://alion.io/job/interimage-senior-ontology-engineer.json","meta":{"generated_at":"2026-10-28T23:10:31Z","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":31667,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-29T00:00:00Z"}},"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":5758},"rest":"https://alion.io/mcp/rest/get_company?id=5758"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Finterimage-senior-ontology-engineer"},{"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%2Finterimage-senior-ontology-engineer"},{"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%2Finterimage-senior-ontology-engineer"},{"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/interimage-senior-ontology-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Finterimage-senior-ontology-engineer"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":557441}},{"tool":"search_jobs","arguments":{"company":"iimage.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":557441},"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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