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 Prot g , 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

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