{"id":3781543,"url":"https://alion.io/job/acclaim-technical-services-knowledge-graph-data-engineer-2026-0247-acclaim-technical-services","title":"Knowledge Graph Data Engineer (2026-0247) - Acclaim Technical Services","company":{"id":1949658,"name":"Acclaim Technical Services","domain":"acclaimtechnical.com","url":"https://alion.io/company/acclaimtechnical","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"JazzHR","truth_index":null},"role":"Data Science","role_family":"Data Science","seniority":"staff","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Bethesda, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":210000,"max":260000,"currency":"USD","period":"year","gross":null,"usd_annual":260000},"salary_estimate":null,"experience_years_min":10,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Embeddings","optional":false},{"name":"GraphRAG","optional":false},{"name":"Hybrid Search","optional":false},{"name":"Knowledge Graph","optional":false},{"name":"LangGraph","optional":false},{"name":"Model Context Protocol","optional":false},{"name":"Oracle","optional":false},{"name":"Python","optional":false},{"name":"Semantic Search","optional":false},{"name":"CI/CD","optional":true},{"name":"LangChain","optional":true}],"status":"live","first_seen_at":"2026-11-05T01:06:52Z","employer_posted_date":"2026-11-05","last_verified_at":"2026-11-05T13:21:36Z","board_verified":true,"closed_at":null,"days_open":0,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":0},"description":"ATS is currently seeking a highly experienced and motivated Knowledge Graph Data Engineerw/ TS/SCI w/ Polygraph in Bethesda, MD to build the data and retrieval foundation for a Graph RAG application. The system combines a property graph, vector search, and database queries with a LangGraph agent. You will help turn information from multiple sources into reliable graph data and make it accessible through retrieval APIs and MCP tools.\nRole Description:\nBuild Python pipelines to ingest, clean, chunk, enrich, and index structured and unstructured data.\nModel entities and relationships in a property graph, preserving provenance and links to source material.\nDevelop entity extraction and resolution workflows that connect information across sources.\nBuild embedding pipelines and maintain vector indexes for semantic search.\nImplement hybrid retrieval that combines vector search, keyword search, graph traversal, and database queries.\nDevelop and integrate MCP servers and tools that expose vector search capabilities to a LangGraph agent.\nIntegrate the Oracle MCP server so the agent can query relevant database data.\nApply graph algorithms to identify connections and improve retrieval.\nEvaluate graph quality, retrieval relevance, answer grounding, and pipeline reliability.\nCollaborate with application engineers and stakeholders to turn use cases into graph models, retrieval workflows, and agent tools.\nRequired qualificationsStrong computer science fundamentals, including data structures, algorithms, software design, and testing.\nProficiency in Python and experience building maintainable data pipelines or backend services.\nWorking knowledge of cloud fundamentals, including compute, storage, networking, security, and deployment.\nHands-on experience with property graph modeling, queries and traversals, and graph algorithms.\nExperience with embeddings, vector indexes, and semantic or hybrid search.\nUnderstanding of retrieval-augmented generation and how to evaluate the quality of retrieved context.\nAbility to work with inconsistent or incomplete data and communicate technical decisions clearly.\n Preferred qualifications:Experience with Oracle Cloud Infrastructure (OCI), Oracle Database, or Oracle Property Graph.\nExperience building agents with LangGraph or a similar framework.\nExperience developing or integrating Model Context Protocol (MCP) servers and tools.\nFamiliarity with entity resolution, information extraction, or knowledge graph construction.\nExperience with CI/CD, containers, infrastructure as code, and production monitoring.\nRequired Credentials:10+ years of experience relevant to this position.\nBachelor’s Degree in engineering, Math or computer science. Master’s degree preferred.\nSalary Range: $210,000 - $260,000","description_format":"text","description_chars":2758,"description_truncated":false,"requirements":{"experience_years_min":10,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":true},"security_clearance":true,"languages":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["National Security","Recruiting & Staffing"],"lifecycle":[{"event":"open","at":"2026-11-05T01:06:52Z"}],"visa":[],"liveness":{"score":90,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.903,"p_room":1,"age_days":0,"expected_fill_days":21,"reasons":["conf:4","velocity","win:early"],"computed_at":"2026-11-05T05:54:30Z"},"pay":{"stated_usd_annual":260000,"is_top_pay":true},"html_url":"https://alion.io/job/acclaim-technical-services-knowledge-graph-data-engineer-2026-0247-acclaim-technical-services","json_url":"https://alion.io/job/acclaim-technical-services-knowledge-graph-data-engineer-2026-0247-acclaim-technical-services.json","meta":{"generated_at":"2026-11-05T15:42:23Z","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":20517,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-06T00:00:00Z"}},"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":1949658},"rest":"https://alion.io/mcp/rest/get_company?id=1949658"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Facclaim-technical-services-knowledge-graph-data-engineer-2026-0247-acclaim-technical-services"},{"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%2Facclaim-technical-services-knowledge-graph-data-engineer-2026-0247-acclaim-technical-services"},{"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%2Facclaim-technical-services-knowledge-graph-data-engineer-2026-0247-acclaim-technical-services"},{"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/acclaim-technical-services-knowledge-graph-data-engineer-2026-0247-acclaim-technical-services\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Facclaim-technical-services-knowledge-graph-data-engineer-2026-0247-acclaim-technical-services"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3781543}},{"tool":"search_jobs","arguments":{"company":"acclaimtechnical.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3781543},"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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