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Knowledge Graph Engineer Jobs in Ashburn, VA (NOW HIRING)

NextGenEnergyJobs

Graph Data Engineer

Arlington, VA · On-site

$140 - $200/hr

Supplying the "Raw Ingredients" for the Semantic Knowledge Graph: Design, build, and deploy ... Partner with AI engineers so planning, research, and tool agents can dynamically query the graph ...

NextGenEnergyJobs

Junior Graph Data Engineer

Arlington, VA · On-site

$110 - $165/hr

Supplying the "Raw Ingredients" for the Semantic Knowledge Graph: Assist in designing and deploying ... Collaborate with senior engineers to align discovered data elements from local systems to the ...

Redhorse Corporation

Graph Data Engineer

Arlington, VA · On-site

$140K - $170K/yr

Supplying the "Raw Ingredients" for the Semantic Knowledge Graph: Design, build, and deploy ... Partner with AI engineers so planning, research, and tool agents can dynamically query the graph ...

Redhorse Corporation

Graph Data Engineer

Arlington, VA · On-site

$140K - $170K/yr

Supplying the "Raw Ingredients" for the Semantic Knowledge Graph: Design, build, and deploy ... Partner with AI engineers so planning, research, and tool agents can dynamically query the graph ...

Redhorse Corporation

Graph Data Engineer

Arlington, VA · On-site

$131K - $158K/yr

Supplying the "Raw Ingredients" for the Semantic Knowledge Graph: Design, build, and deploy ... Partner with AI engineers so planning, research, and tool agents can dynamically query the graph ...

Redhorse Corporation

Graph Data Engineer

Arlington, VA · On-site

$131K - $158K/yr

Supplying the "Raw Ingredients" for the Semantic Knowledge Graph: Design, build, and deploy ... Partner with AI engineers so planning, research, and tool agents can dynamically query the graph ...

Socket.dev

Junior Graph Data Engineer

Arlington, VA · On-site

$70 - $100/hr

Supplying the Raw Ingredients for the Semantic Knowledge Graph: Assist in designing and deploying ... Help engineering teams construct and maintain data lineage chains within the Provenance Layer ...

Navtech, Inc.

Neo4J Developer

Rockville, MD · On-site

$53.50 - $69/hr

Neo4J Developer Location: Rockville. MD - 100% Remote Duration: Long Term Contract Client is ... Query Languages for Property-Graph or Knowledge-Graph, NoSQL, and Relational databases e.g. Gremlin ...

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Knowledge Graph Engineer information

See Ashburn, VA salary details

$33.7K

$91.2K

$145.2K

How much do knowledge graph engineer jobs pay per year?

As of Sep 7, 2026, the average yearly pay for knowledge graph engineer in Ashburn, VA is $91,199.00, according to ZipRecruiter salary data. Most workers in this role earn between $68,000.00 and $111,500.00 per year, depending on experience, location, and employer.

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Data Engineer (Knowledge Graph Specialist)

Black Cape

Bethesda, MD • On-site

$120 - $150/hr

Other

Retirement

Re-posted 28 days ago

Job description

Data Engineer (Knowledge Graph Specialist)

Location: Bethesda, MD

Onsite: Expected to go onsite (into a SCIF) 3‑5 days per week

Clearance: TS/SCI required. Active TS/SCI clearance and willingness to obtain a CI Poly are mandatory. US citizenship or a Security Clearance issued by a US Government Customer is also required.

Responsibilities: Work with Department of War (DoW) and Intelligence Community (IC) customers to develop cloud‑native full‑stack web applications, advanced data‑analysis tools, and machine‑learning capabilities. Collaborate with cross‑functional teams, architect graph‑based data solutions, and deliver production‑ready services in classified environments.

Company Overview

Black Cape is a technology company focused on developing full‑stack web applications, advanced data‑analysis tools, and AI/ML capabilities for federal government customers. The team includes experienced engineers who deliver solutions across the DoW and IC by applying agile and DevOps practices.

Required Technical Skills
  • Bachelor’s degree and 1.5+ years of professional experience
  • Strong grasp of graph theory, data modeling, and complex relationship structures
  • Expertise with graph database solutions such as Neo4j, Amazon Neptune, or Anzograph
  • Familiarity with query languages including Cypher, SQL, and SPARQL
  • Proficiency with scripting languages such as Python and shell scripting
  • Experience with Linux systems (RedHat‑based distributions)
  • Experience working with software development teams
  • Willingness to work in classified government environments
  • Experience developing on MacOS, Windows, and Linux
Preferred Technical Skills
  • Experience with AWS Console and EC2 instance management
  • Background working with Object‑Based Intelligence
  • Experience communicating to senior stakeholders in a classified environment
  • CompTIA Security+ certification
Benefits

Great benefits including 401K, competitive salary, generous time off, mentorship & professional development, tuition reimbursement, and parental policy.

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