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Semantic Web Developer Jobs (NOW HIRING)

Squirro

Knowledge Graph Engineer

New York, NY · Remote

USD 100'000-150'000 We are looking for a Knowledge Graph Engineer to join our team in the US ... In-depth knowledge of semantic web standards (RDF, SKOS, OWL, SPARQL) * Familiarity with graph ...

Squirro

Knowledge Graph Engineer

New York, NY

We are looking for a Knowledge Graph Engineer to join our team in the US, supporting the Delivery ... In-depth knowledge of semantic web standards (RDF, SKOS, OWL, SPARQL) * Familiarity with graph ...

iSpace, Inc

Full Stack Developer

Los Angeles, CA

Develop and maintain web applications using modern web technologies. * Collaborate with cross ... Familiarity with UI frameworks such as Bootstrap, Semantic-React-UI, Material, Tailwind, or similar.

Squirro

Knowledge Graph Engineer

New York, NY · On-site

We are looking for a Knowledge Graph Engineer to join our team in the US, supporting the Delivery ... In-depth knowledge of semantic web standards (RDF, SKOS, OWL, SPARQL) * Familiarity with graph ...

TSC

Senior AI Engineer

Dahlgren, VA · On-site

$106K - $146K/yr

... in semantic web and knowledge representation Company : TSC is an employee-owned, high technology company engaged in providing engineering services and specialized products to U.S. Founded in 1966 ...

Roberts Recruiting

Senior Software Engineer

Boston, MA · On-site +1

$133K - $175K/yr

We are seeking a highly skilled Java or Scala Engineer to work on the core of our semantic platform ... This is an opportunity to join a world class team pioneering Web 3.0 semantic technologies.

Amazon

Ontologist II - AMZ9740721

Seattle, WA · On-site

$113K - $144K/yr

... engineering and retail teams; (3) working with Semantic Web technologies, query languages and validation and reasoning standards; (4) knowledge of open-source and commercial ontology engineering ...

Base Power Company

Web Design Engineer

Austin, TX · On-site

They are seeking a Web Design Engineer to take ownership of their website, managing its ... Core Web Vitals, semantic HTML, structured data, rendering strategies. • Proficiency in Figma.

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.

iSpace, Inc.

Full Stack Developer

Los Angeles, CA · On-site

The role involves developing and maintaining web applications, collaborating with teams to design ... Semantic-React-UI, Material, Tailwind, or similar. • Experience writing unit and integration ...

Govini

Knowledge Engineer

Pittsburgh, PA · On-site

We are seeking a Knowledge Engineer to join our Data Product & Operations team. In this role, you ... Working knowledge of semantic web standards (OWL, RDF, SKOS, SPARQL) * Proven ability to ...

Govini

Knowledge Engineer

Pittsburgh, PA · On-site

We are seeking a Knowledge Engineer to join our Data Product & Operations team. In this role, you ... Working knowledge of semantic web standards (OWL, RDF, SKOS, SPARQL) * Proven ability to ...

Govini

Knowledge Engineer

Pittsburgh, PA

We are seeking a Knowledge Engineer to join our Data Product & Operations team. In this role, you ... Working knowledge of semantic web standards (OWL, RDF, SKOS, SPARQL) * Proven ability to ...

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Semantic Web Developer information

See salary details

$49.5K

$117.9K

$241K

How much do semantic web developer jobs pay per year?

As of Jun 9, 2026, the average yearly pay for semantic web developer in the United States is $117,880.00, according to ZipRecruiter salary data. Most workers in this role earn between $80,000.00 and $128,000.00 per year, depending on experience, location, and employer.

What is a Semantic Web Developer?

A Semantic Web Developer is a software professional who creates applications and systems that leverage the Semantic Web, a set of technologies designed to make data on the internet machine-readable and interoperable. They use standards like RDF (Resource Description Framework), OWL (Web Ontology Language), and SPARQL to structure data and enable intelligent data integration and sharing. Semantic Web Developers often work on projects involving linked data, knowledge graphs, and artificial intelligence to enhance how information is connected and understood by machines. Their work helps improve search, data discovery, and automation across diverse domains.

What are the key skills and qualifications needed to thrive as a Semantic Web Developer, and why are they important?

To thrive as a Semantic Web Developer, you need a solid background in computer science, expertise in semantic technologies (such as RDF, OWL, and SPARQL), and experience with web development languages like JavaScript or Python. Familiarity with ontology editors (like Protégé), triple stores (such as Apache Jena or Virtuoso), and relevant W3C standards is typically required. Strong analytical thinking, problem-solving skills, and the ability to communicate complex concepts clearly set outstanding candidates apart. These competencies are vital for building interoperable, intelligent web systems that efficiently manage and leverage structured data.

What is the difference between Semantic Web Developer vs Web Developer?

AspectSemantic Web DeveloperWeb Developer
Required SkillsSemantic web technologies, RDF, OWL, SPARQL, ontologiesHTML, CSS, JavaScript, frameworks like React or Angular
Work EnvironmentResearch, data integration, knowledge graphsWebsite and application development
Industry UsageData-driven industries, AI, knowledge managementMedia, e-commerce, corporate websites

Semantic Web Developers focus on creating intelligent, data-rich web applications using semantic technologies, while Web Developers primarily build and maintain standard websites and applications. Both roles require coding skills, but their focus areas differ significantly, with Semantic Web Developers working more with data integration and ontologies.

What are the most common challenges faced by Semantic Web Developers when integrating ontologies with existing data sources?

Semantic Web Developers often encounter challenges when mapping and integrating diverse data sources into a unified ontology. These can include inconsistencies in data formats, incomplete metadata, and aligning different vocabularies or schemas. Overcoming these issues typically requires strong analytical skills, familiarity with RDF and OWL standards, and close collaboration with data owners and subject matter experts to ensure semantic accuracy. Regular communication and iterative testing are essential for successful integration and to maintain data integrity across systems.
More about Semantic Web Developer jobs
What job categories do people searching Semantic Web Developer jobs look for? The top searched job categories for Semantic Web Developer jobs are:
Semantic Web Developer jobs near you
Infographic showing various Semantic Web Developer job openings in the United States as of May 2026, with employment types broken down into 84% Full Time, 10% Part Time, and 6% Contract. Highlights an 80% Physical, 5% Hybrid, and 15% Remote job distribution, with an average salary of $117,880 per year, or $56.7 per hour.

Knowledge Graph Engineer

Squirro

New York, NY • Remote

Full-time

Posted 27 days ago

Job description

Salary: USD 100'000-150'000

We are looking for a Knowledge Graph Engineer to join our team in the US, supporting the Delivery team in designing, implementing, and deploying knowledge graphdriven SaaS solutions for enterprise customers.


What Youll Do

As a Knowledge Graph Engineer, you will work closely with customers and internal product and engineering teams to design and deploy semantic and knowledge graph solutions that deliver measurable business value.


  • Client Engagement & Solution Delivery: Manage client engagements from pre-sales through onboarding, deployment, and training, ensuring successful adoption of knowledge graphbased solutions.
  • Semantic Modeling & Knowledge Graph Design: Develop and maintain taxonomies, ontologies, and classification models. Design semantic structures that align user needs with business objectives.
  • Cross-functional Collaboration: Collaborate with product, engineering, and delivery teams to translate customer requirements into scalable semantic and technical solutions.
  • Product Contribution & Customer Feedback: Gather and prioritize client requirements, contribute ideas to the product roadmap, and support product positioning through demos, content, and customer-facing activities.


What You Bring

You will support the Product and Delivery functions in building and deploying high-quality semantic solutions.


  • Strong Python experience
  • Experience in customer-facing roles within software or SaaS environments
  • Strong communication and presentation skills
  • Practical experience developing taxonomies, ontologies, and knowledge graphs
  • Experience managing human and/or machine classification
  • In-depth knowledge of semantic web standards (RDF, SKOS, OWL, SPARQL)
  • Familiarity with graph databases, particularly RDF graph databases
  • Familiarity with Large Language Models (LLMs) and Retrieval Augmented Generation (RAG)
  • Ability to collaborate effectively across technical and non-technical teams


What we offer


  • Drive growth in a dynamic, high-potential tech environment
  • Enjoy autonomy with our "freedom and responsibility" work approach
  • Collaborate with exceptional talent solving extraordinary challenges
  • Drive customer success and retention while enjoying a flexible environment focused on growth
  • Make a strategic impact while having fun with awesome colleagues


About Squirro

Squirro is the enterprise AI platform built for regulated industries, streamlining enterprise search and automating complex, custom workflows. Secure, private, scalable, permissions-aware, and fully auditable, the platform ensures that every result is accurate and verifiable. Squirro powers agentic AI applications that are grounded in the organizations unique enterprise ontology.

Further information about AI-driven business insights can be found at:
https://squirro.com/