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Virtasant

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Virtasant

Principal Ontology Architect (Healthcare)

Virtasant is seeking a Principal Ontology Architect to join a senior team for a large enterprise program focused on healthcare operations. Virtasant operates as a global…

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Role Snapshot

Hiring Now
Work arrangement
Remote
Where applicants may be
Applicants in United States only
Salary
Not specified
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Employment type
Full-time
Experience
Not specified
Added to Jobsiz52m agoEmployer posted Nov 7, 2026
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About This Role

Virtasant is seeking a Principal Ontology Architect to join a senior team for a large enterprise program focused on healthcare operations. Virtasant operates as a global technology services firm with a vast network of technology professionals serving clients ranging from startups to Fortune 500 enterprises. This contractor role involves designing and implementing knowledge-graph frameworks that enable executives to make operational decisions, execute actions, and track outcomes. The successful candidate will…

Job Description

Virtasant is seeking a Principal Ontology Architect to join a senior team for a large enterprise program focused on healthcare operations. Virtasant operates as a global technology services firm with a vast network of technology professionals serving clients ranging from startups to Fortune 500 enterprises. This contractor role involves designing and implementing knowledge-graph frameworks that enable executives to make operational decisions, execute actions, and track outcomes. The successful candidate will collaborate directly with senior client stakeholders, lead semantic design, and share previous delivery experience. The engagement begins immediately on a part-time basis for the initial weeks before transitioning to full time on a multi-year project.

Responsibilities

  • Collaborate directly with senior client stakeholders to share previous design and delivery experience
  • Lead ontology and semantic design for healthcare operations
  • Conduct workshops with domain experts to establish business-first models derived from executive questions and metrics
  • Perform hands-on graph modeling utilizing property-graph or RDF databases
  • Present solutions to C-level stakeholders and navigate live challenges

Requirements

  • Designed and shipped production ontologies that drove real business decisions rather than only metadata catalogs or taxonomies
  • Demonstrated experience in healthcare operations such as scheduling, workforce, or clinical operations
  • Must be based in the United States with valid US work authorization
  • Available for immediate start and occasional US travel
  • Strong senior presence with experience presenting to C-level stakeholders

Qualifications

  • Experience with Palantir Foundry Ontology including objects, links, and actions
  • Familiarity with ontology governance covering versioning, change control, stable identifiers, and shared cores
  • Background in decision-intelligence modeling such as KPI trees, root-cause analysis, and closed-loop measurement
  • Experience grounding AI assistants or agents in an ontology or knowledge graph
  • Knowledge of rules engines paired with an ontology and modern cloud data platforms

Frequently Asked Questions

Answers are based only on the employer’s listing; where it doesn’t say, neither do we.

Is this position remote?

The posting states that the role is remote and US-based with US work authorization, alongside occasional US travel.

What is the employment type and schedule?

The position is a contractor role starting immediately on a part-time basis for the first few weeks, with expectations to transition to full-time on a multi-year engagement.

What salary does Virtasant offer for this role?

The job posting does not specify a salary.

What primary industry experience is required?

Candidates must have experience in healthcare operations, such as scheduling, workforce management, or clinical operations.

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Posted by Virtasant

Source: Himalayas

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Posted by employer: Nov 7, 2026

Added to Jobsiz: Nov 7, 2026

The description was written by Jobsiz from the employer’s listing. Always check the original listing before applying.

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