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Semantic Web Engineer 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

Data Engineer

Herndon, VA · On-site

$117K - $141K/yr

This position applies data engineering best practices to support enterprise ontologies, knowledge graphs, Semantic Web technologies, and AI/ML applications while ensuring data quality, governance ...

Platinum Technologies

Senior Database Engineer

Herndon, VA · On-site

$109K - $148K/yr

The Sneior Database Engineer serves as the technical authority for the design, implementation ... This position develops scalable data architectures that support Semantic Web technologies ...

Platinum Technologies

Senior Database Engineer

Herndon, VA · On-site

$109K - $148K/yr

The Sneior Database Engineer serves as the technical authority for the design, implementation ... This position develops scalable data architectures that support Semantic Web technologies ...

Platinum Technologies

Data Engineer

Herndon, VA · On-site

$117K - $141K/yr

This position applies data engineering best practices to support enterprise ontologies, knowledge graphs, Semantic Web technologies, and AI/ML applications while ensuring data quality, governance ...

Platinum Technologies

Senior Database Engineer

Herndon, VA · On-site

$109K - $148K/yr

The Sneior Database Engineer serves as the technical authority for the design, implementation ... This position develops scalable data architectures that support Semantic Web technologies ...

Platinum Technologies

Data Engineer

Herndon, VA · On-site

$117K - $141K/yr

This position applies data engineering best practices to support enterprise ontologies, knowledge graphs, Semantic Web technologies, and AI/ML applications while ensuring data quality, governance ...

Platinum Technologies

Data Engineer

Herndon, VA · On-site

$117K - $141K/yr

This position applies data engineering best practices to support enterprise ontologies, knowledge graphs, Semantic Web technologies, and AI/ML applications while ensuring data quality, governance ...

Base Power Company

Web Design Engineer

Austin, TX · On-site

They are seeking a Web Design Engineer to own the website's architecture, design, and performance ... Core Web Vitals, semantic HTML, structured data, rendering strategies. • Proficiency in Figma.

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How much do semantic web engineer jobs pay per hour?

As of Sep 11, 2026, the average hourly pay for semantic web engineer in the United States is $59.01, according to ZipRecruiter salary data. Most workers in this role earn between $51.20 and $66.83 per hour, depending on experience, location, and employer.

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Infographic showing various Semantic Web Engineer job openings in the United States as of September 2026, with employment types broken down into 67% Full Time, and 33% Contract. Highlights an 100% In-person job distribution, with an average salary of $122,736 per year, or $59 per hour.

Senior Semantic Web Engineer (Hybrid)

Chicago, IL • On-site

PSRTEK
IT Services • 501 - 1,000 employees
Learn more about PSRTEKexternal

$126K - $166K/yr

Contractor

Re-posted 23 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.