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Lead Software Engineer
Eden Prairie, Minnesota  |  Remote, Onsite
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Applied on December 4, 2022
Job Id #60427 Posted November 9, 2022

Job Description:

  • Design, develop, and implement semantic web data pipelines to transform and integrate terminological resources.
  • Collaborates with CACS development groups and other stakeholders to lead development and implementation of data standards for clinical decision support.
  • Develops, tests, debugs, and maintains new and existing application software.
  • Works independently to define and document project requirements and provides overall technical guidance in design, architecture and implementation of software solutions.
  • Performs other related work as needed.

Critical Requirements / Knowledge / Skills

  • BS in computer science or related field with experience in Semantic Web & Ontologies.
  • 2+ years of experience with semantic web technologies such as RDF, RDFS, OWL, SPARQL
  • Familiarity with clinical/phenotypic data
  • 5+ years of experience with programming in healthcare industry, healthcare IT
  • Knowledge of biomedical ontologies and resources (e.g. SNOMED CT, LOINC, ICD, CPT, etc.).
  • Experience with using ontology tools (e.g. Protégé, TopBraid, etc.)
  • Understanding of electronic health record data processes and data flow.
  • Knowledge of biomedical common data models (e.g. FHIR, OMOP, PCORNet, etc.)
  • Experience with multiple computing languages, ideally including Java and Python.
  • Knowledge of XML, JSON-LD, and other data serialization formats
  • Strong verbal, written, and interpersonal skills

Preferred Requirements / Knowledge / Skills

  • MS in computer science or related field with a focus on Semantic Web & Ontologies.
  • Scientific background and interest - particularly biomedicine
  • Experience with semantic web libraries like Jena, OWLAPI, etc.
  • Experience with setting up and managing triple stores (e.g. Fuseki, Stardog, etc.)

Projects the candidate will be working on:

  • We are creating a scalable, multi-consumer medical ontology solution for use across.
  • This solution will enable rapid development of CDS (clinical decision support) and other provider-oriented applications, as well as other applications that make use of medical ontologies.

Ideal Background:

  • Semantic web experience and expertise is required.
  • a. This requirement narrows the candidate pool down by 95% or more – it is a rare and specific skillset.
  • b. Most of the people I’ve seen with this skillset have postgraduate degrees, fellowships, participate in or lead standards committees, etc. – none of that is required, but may indicate a higher-quality candidate compared to those without any of those extracurriculars.


  • Experience developing scalable applications.
  • Knowledge of technical and application architecture patterns.
  • Real-world experience architecting and designing applications involving semantic web, ideally involving medical ontology.
  • Real-world experience working with an ontology solution, e.g. Ontoserver.

Top Requirements:

  • a. Semantic web – 3+ years required
  • i. Resume might not explicitly mention semantic web – also be on the lookout for terms like
    • 1. “RDF” or “RDF OWL” or “OWL”
    • 2. SPARQL
    • 3. Inference
    • 4. Linked data
    • 5. “Ontology”/”Ontologies” or “Terminology”/”Terminologies”
  • b. Software architecture – 3+ years preferred
  • c. Software engineering – 5+ years required

Team and Team size:

  • Around 8 team members. 1 product owner, 5 developers, 1 expert terminologist, + this position (developer and semantic web expert)

Horizontal is proud to be an Equal Opportunity and Affirmative Action Employer. We seek to provide employment opportunities to talented, qualified candidates regardless of race, color, sex/gender including gender identity and/or expression, national origin, religion, sexual orientation, disability, marital status, citizen status, veteran status, or any other protected classification under federal, state or local law.

In addition, Horizontal will provide reasonable accommodations for qualified individuals with disabilities. If you need to request a reasonable accommodation in order to complete the application or interview process, please contact

All applicants applying must be legally authorized to work in the country of employment.


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Horizontal is proud to be an Equal Employment Opportunity/Affirmative Action Employer providing a drug-free workplace.


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