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Sparql Jobs (NOW HIRING)

SOSi

Ontologist-WO-007

Proficiency in writing advanced SPARQL queries. * Strong skills in the W3C Web Ontology Language (OWL). * Solid understanding of Basic Formal Ontology (BFO) and Common Core Ontologies (CCO)

Allstate

Senior AI Engineer

Chicago, IL

$126.30K - $166.50K/yr

Implement SPARQL querying and reasoning layers over knowledge graphs to drive downstream transformations and ensure consistent interpretation of business concepts. * Architect and deliver Python ‑ ...

SOSi

Ontologist-WO-007

Proficiency in writing advanced SPARQL queries. * Strong skills in the W3C Web Ontology Language (OWL). * Solid understanding of Basic Formal Ontology (BFO) and Common Core Ontologies (CCO)

GHX

OR · On-site

$91K - $121K/yr

RDF, LPG, SPARQL, Cypher) * Understanding of data modeling, ontology design, data architecture * Familiar with LLMs and other machine learning and agentic solutions. * Familiar with all steps of SDLC ...

Connect Tech+Talent

Data Architect

Menlo Park, CA · Remote

$75.25 - $96.75/hr

Mastery of RDF, OWL, and SHACL for ontology-first modeling and SPARQL reasoning. - Production-level Open Policy Agent (OPA)/ Policy-as-Code(Zero-Trust) for dynamic, context-aware access control.

TSC

Senior AI Engineer

Dahlgren, VA · On-site

$106.60K - $146.30K/yr

Responsibilities : • Design, develop, and maintain formal ontologies using OWL, RDF/RDFS, and SPARQL aligned with DoD mission engineering requirements and semantic interoperability standards. • ...

Core4ce

Senior Ontologist

Springfield, VA · On-site

Experience with semantic web technologies (e.g., RDF, OWL, SPARQL) * Background in knowledge management or information architecture * Experience working across multiple domains or large-scale ...

Peraton

Knowledge Graph/Ontology Engineer

Basking Ridge, NJ · On-site

$104K - $166K/yr

Develop SPARQL query templates and APIs for common analytical patterns * Implement knowledge graph quality assurance: consistency checks, completeness monitoring, and conflict resolution * Design the ...

Core4ce

Senior Ontologist

Springfield, VA

Experience with semantic web technologies (e.g., RDF, OWL, SPARQL) * Background in knowledge management or information architecture * Experience working across multiple domains or large-scale ...

GHX

OR

$91K - $121K/yr

RDF, LPG, SPARQL, Cypher) * Understanding of data modeling, ontology design, data architecture * Familiar with LLMs and other machine learning and agentic solutions. * Familiar with all steps of SDLC ...

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How much do sparql jobs pay per hour?

As of May 30, 2026, the average hourly pay for sparql in the United States is $30.15, according to ZipRecruiter salary data. Most workers in this role earn between $24.04 and $34.62 per hour, depending on experience, location, and employer.

What is a SPARQL job?

A SPARQL job typically involves working with SPARQL, a query language used to retrieve and manipulate data stored in RDF (Resource Description Framework) format. Professionals in this role often work with semantic web technologies, knowledge graphs, and linked data. They may develop queries to extract insights, integrate data from various sources, and optimize database performance. Common roles include data engineers, semantic web developers, and ontology specialists.

What are the key skills and qualifications needed to thrive in the Sparql position, and why are they important?

To thrive in a SPARQL Developer role, you need a solid understanding of semantic web technologies, RDF data modeling, and advanced SPARQL query design, typically supported by a degree in Computer Science or a related field. Experience with triplestore databases such as Apache Jena, Virtuoso, or Stardog, and proficiency in programming languages like Python or JavaScript are commonly required. Strong analytical thinking, attention to detail, and effective collaboration skills are crucial in this position. These competencies ensure efficient extraction of insights from complex linked data, facilitate integration tasks, and support business-driven data initiatives.

What are some common challenges faced by SPARQL Developers, and how can they overcome them?

SPARQL Developers often encounter challenges when working with large, interconnected datasets or optimizing complex queries for triplestore performance. Navigating the nuances of schema design, integrating disparate data sources, and ensuring precise query results are part of the day-to-day work. Collaborating closely with data architects and subject matter experts helps address ambiguity and clarify project requirements. Staying up to date with advances in semantic technologies and routinely profiling queries can also lead to more efficient solutions and better overall project outcomes.
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Sparql jobs near you
Infographic showing various Sparql job openings in the United States as of May 2026, with employment types broken down into 84% Full Time, 1% Part Time, and 15% Contract. Highlights an 80% Physical, 9% Hybrid, and 11% Remote job distribution, with an average salary of $62,702 per year, or $30.1 per hour.

Ontologist-WO-007

SOSi

Remote

Part-time

Posted 15 days ago

Job description

Company Description
Founded in 1989, SOSi is among the largest private, founder-owned technology and services integrators in the defense and government services industry. We deliver tailored solutions, tested leadership, and trusted results to enable national security missions worldwide.
Job Description
*** This position is contingent upon contract award ***
SOSi is seeking an Ontologist to support mission requirements for a structured approach to further develop, integrate, and sustain a scalable, federated data ecosystem that enhances interoperability, governance, and mission-driven analytics for a DoD customer. The primary objective of the program is to bridge the operational gaps between DoD, IC, interagency, and non-traditional international partners to enable real-time information sharing, dynamic data integration, and mission-tailored analytical capabilities.
Essential Job Duties:
  • The contractor shall develop, refine, and maintain domain-specific ontologies to support structured data integration, semantic search, and AI-assisted decision support.
  • The contractor shall enforce adherence to W3C standards and metadata alignment between Databricks Unity Catalog, GIS metadata systems, and operational data stores.
  • The contractor shall collaborate with data scientists and analysts to ensure ontology-driven tagging and entity resolution enhances the relevance of research outputs.
  • The contractor shall submit the Ontology Governance & Standardization Report, detailing ontology updates, integrations, and compliance with metadata standards.

Qualifications
  • Master's degree or higher (e.g., Ph.D.) in Computer Science, Information Science, Artificial Intelligence, Geospatial Science, GIS, Data Science, Business Analytics, Cognitive Science, or a closely related field; OR a minimum of 11+ years of experience in ontology development, semantic technologies.
  • Possess the knowledge and capability to develop ontologies:
    • Proficiency in writing advanced SPARQL queries.
    • Strong skills in the W3C Web Ontology Language (OWL).
    • Solid understanding of Basic Formal Ontology (BFO) and Common Core Ontologies (CCO).
    • Proficiency in both Java and Python for ontology-driven application development
    • Experience with Bash scripting for automation tasks.
  • Hands-on experience with ESRI data tools, including ArcGIS.
  • Background in DevSecOps practices, version control systems (e.g., Git) and CI/CD pipelines.
  • Strong analytical skills, attention to detail, and the ability to work collaboratively.
  • Demonstrated expertise in ontology design, semantic data modeling, and SPARQL query development, with proficiency in W3C standards (RDF, OWL, SHACL) and supporting frameworks like Basic Formal Ontology (BFO) and Common Core Ontologies (CCO).

Additional Information
Working Conditions
  • Remote. Offsite.

Working at SOSi
All interested individuals will receive consideration and will not be discriminated against for any reason.

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