Knowledge Engineer

Job summary
Permanent contract
Paris
Salary: Not specified
Starting date: January 13, 2026
Experience: > 2 years
Skills & expertise
Project management
Technical aptitude
Cross-functional team leadership
Communication skills
Collaboration and teamwork
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Okeiro
Okeiro

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Questions and answers about the job

The position

Job description

Be responsible for maintenance, update and modelisation of a healthcare start-up domain knowledge (mainly transplantation), in order to ensure the quality of patient data structuration and future AI applications.

NB : We are looking for people working from EU, preferably France, with working rights in EU.

Key Responsibilities

Semantic architecture

  • Coordinate semantic experts and our medical advisor to perform terminology management
  • Decide and plan future semantic needs (medications, symptoms) based on clinician needs
  • Monitor and implement updates to core medical terminologies (SNOMED CT, LOINC, etc.)
  • Collaborate closely with development and DevOps teams on semantic server architecture

Knowledge and ontology engineering

  • Maintain and update our transplant Knowledge Graph in close collaboration with NLP experts and medical advisors
  • Create and maintain medical ontologies
  • Explore reasoning, AI, and GraphRAG applications for clinical decision support

Preferred experience

Experience

  • 3-5 years in semantic engineering, knowledge engineering, medical informatics, or related field
  • Hands-on experience managing medical terminologies and knowledge graphs in production environments
  • French: Conversational level
  • English: C2 level

Technical Skills

  • Graph databases (Neo4j or equivalent)
  • Ontologies (Webprotégé, OWL, RDF)
  • Familiarity with SNOMED CT, LOINC, ICD, RxNorm
  • Semantic web technologies and knowledge representation
  • Comfortable with scripting/coding for automation and tooling (Python, JavaScript preferred)
  • Data quality management and audit trail implementation

Collaboration Skills

  • Excellent communication skills with the ability to explain complex concepts
  • Ability to balance the sometimes competing priorities
  • Strong coordination skills for managing external experts, consultants, and cross-functional teams

Preferred Qualifications

  • Experience in the healthcare technology sector
  • Experience working with SNOMED-CT, ICD10 or other medical semantics
  • Project management capabilities

You're passionate about healthcare innovation and using data to improve patient outcomes. You like ‘product thinking’ and being able to understand healthcare stakes and users to ground your strategy.

This is a unique opportunity to shape the data foundation of our growing company while working across product, engineering, clinical and customer success teams. You'll have significant autonomy to implement best practices and build systems that will drive our future success.

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