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Senior Specialist Semantic Web Jobs (NOW HIRING)

PSRTEK

Senior Semantic Web Engineer (Hybrid)

Chicago, IL · On-site

$126K - $166K/yr

Position:- Senior Semantic Web Engineer Location:- Chicago, IL (Hybrid) Contract WHAT YOU'LL DO: * Serve as a subject matter expert in semantic web development on our graph data team, contributing to ...

Platinum Technologies

Senior Database Engineer

Herndon, VA · On-site

$109K - $148K/yr

Platinum Technologies is a Senior Database Engineer to join our team. In this position you will ... This position develops scalable data architectures that support Semantic Web technologies ...

Platinum Technologies

Senior Database Engineer

Herndon, VA · On-site

$109K - $148K/yr

Platinum Technologies is a Senior Database Engineer to join our team. In this position you will ... This position develops scalable data architectures that support Semantic Web technologies ...

Platinum Technologies

Senior Database Engineer

Herndon, VA · On-site

$109K - $148K/yr

Platinum Technologies is a Senior Database Engineer to join our team. In this position you will ... This position develops scalable data architectures that support Semantic Web technologies ...

Platinum Technologies

Senior Developer

Herndon, VA · On-site

$56 - $74/hr

The Senior Developer serves as a senior technical contributor responsible for developing secure ... Implement software solutions utilizing Semantic Web technologies, including RDF, OWL, and SPARQL ...

Platinum Technologies

Senior Developer

Herndon, VA · On-site

$56 - $74/hr

The Senior Developer serves as a senior technical contributor responsible for developing secure ... Implement software solutions utilizing Semantic Web technologies, including RDF, OWL, and SPARQL ...

Platinum Technologies

Senior Developer

Herndon, VA · On-site

$56 - $74/hr

The Senior Developer serves as a senior technical contributor responsible for developing secure ... Implement software solutions utilizing Semantic Web technologies, including RDF, OWL, and SPARQL ...

Vantor

Senior Ontology Developer (TS/SCI)

Herndon, VA · On-site

$56 - $74/hr

Implement software solutions utilizing Semantic Web technologies, including RDF, OWL, and SPARQL ... Azure Developer Associate, Red Hat Certified Specialist, Security+, or equivalent software ...

Vantor

Senior Ontology Developer (TS/SCI)

Herndon, VA · On-site

$56 - $74/hr

Implement software solutions utilizing Semantic Web technologies, including RDF, OWL, and SPARQL ... Azure Developer Associate, Red Hat Certified Specialist, Security+, or equivalent software ...

Vantor

Senior Ontology Developer (TS/SCI)

Herndon, VA · On-site

$56 - $74/hr

Implement software solutions utilizing Semantic Web technologies, including RDF, OWL, and SPARQL ... Azure Developer Associate, Red Hat Certified Specialist, Security+, or equivalent software ...

Vantor

Senior Ontology Developer (TS/SCI)

Herndon, VA · On-site

$56 - $74/hr

Implement software solutions utilizing Semantic Web technologies, including RDF, OWL, and SPARQL ... Azure Developer Associate, Red Hat Certified Specialist, Security+, or equivalent software ...

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Infographic showing various Senior Specialist Semantic Web job openings in the United States as of August 2026, with employment types broken down into 1% As Needed, 83% Full Time, 14% Part Time, and 2% Contract. Highlights an 85% Physical, 2% Hybrid, and 13% Remote job distribution.

Senior Semantic Web Engineer (Hybrid)

PSRTEK

Chicago, IL • On-site

$126K - $166K/yr

Contractor

Re-posted 13 days ago

Job description

Position:- Senior Semantic Web Engineer

Location:-  Chicago, IL (Hybrid)

Contract

Job description 

WHAT YOU’LL DO:

  • Serve as a subject matter expert in semantic web development on our graph data team, contributing to initiatives that integrate AI, LLMs, and advanced graph technologies. 
  • Collaborate with the Staff Semantic Engineer and other senior engineers to standardize tooling, design patterns, and modeling approaches. 
  • Help define the technical direction for core semantic capabilities, ensuring scalable and robust solutions. 
  • Independently research, evaluate, and propose innovative solutions to complex and ambiguous technical challenges. 
  • Build and manage scalable knowledge graph solutions, including data ingestion, linking, and querying mechanisms. 
  • Write, test, and document clean, maintainable code, and apply automation to testing, integration, and deployment processes. 
  • Partner with product owners to refine features into actionable user stories that deliver business value. 
  • Evaluate and recommend external taxonomies and ontologies; author new ones as needed to support our domain. 
  • Recommend and implement semantic web tools, platforms, and technologies. 
  • Support ontology governance processes and enterprise graph management tools. 
  • Collaborate with stakeholders, including data scientists, engineers, and developers, to understand requirements and build effective semantic solutions. 
  • Provide technical mentorship to junior team members on semantic web principles and implementation patterns. 

WHAT YOU’LL NEED:

  • Bachelor’s or Master’s degree in Computer Science, Information Technology, or a related STEM field  
  • 5+ years of hands-on experience in semantic web or knowledge graph engineering, including leading complex projects. 
  • Proven experience with graph databases or triple stores such as Amazon Neptune, Neo4j, Virtuoso, or GraphDB. (Amazon Neptune preferred) 
  • Strong proficiency in Python; familiarity with other languages (e.g., Java, C#, JavaScript, Clojure) is a plus.
  • Practical experience with RDF, OWL, SPARQL, and ideally SHACL. 
  • Experience with relational databases (SQL) and graph databases (SPARQL). 
  • Hands-on experience with ontology/graph tools such as Protégé, TopBraid, or Metaphactory. (Metaphactory preferred) 
  • Solid understanding of data modeling, ETL processes, and data governance. 
  • Experience with cloud platforms (AWS preferred) and their data services.  
  • Understanding of AI/ML concepts and how semantic data can enhance AI applications.  
  • Familiarity with CI/CD, agile practices, and infrastructure tools like Git, Jenkins, Azure DevOps, and Terraform.  
  • Strong communication and problem-solving skills, with the ability to explain complex technical concepts to non-technical stakeholders.
  • Bonus: Understanding of healthcare ontologies and standards like SNOMED-CT, LOINC, RxNorm, and ICD-10

PSRTEK is a reputed technology recruitment and IT staffing brand with a global footprint and an admired client base. As an ideas and innovation powerhouse with a culture of excellence, we bring remarkable expertise and deliver powerfully transformative results.