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Jobs · October 1, 2026

Ontology Engineer: Jobs the Org Chart Still Misses

17 titles sat on pages. Eight are older than the word. Two names come from us.

An Ontology Engineer builds the list that makes a company operable for software and agents. Things, fields, relationships, actions. On October 1, 2026 the title sat on pages, from Samba TV to Booz Allen: 17 postings. Beside them, eight older jobs and two names from us, Ontology Designer and Prompt Reviewer. The layer under the titles is the ontology.

01 · Three names

What does an Ontology Engineer do?

He sets object types, fields, links, and actions so a workflow runs on Monday. At Samba TV that means RDF, OWL, SHACL, and a knowledge graph for viewer data, 150,000 to 180,000 dollars. At Booz Allen the same work is called Palantir Foundry: translate the assignment into an ontology, build the pipeline, connect AIP, sit with the customer. At AverIQ, for an oil customer in Houston, the person is the authority for object types, links, and actions, 150,000 to 175,000 dollars. In Cologne, Tenth Revolution is hiring two to three Ontology Developers, remote, for twelve months.

Ontology Designer is our name for the cut before that. Cucumber as object, mustard as field. The boundary is a decision. In the ads this work sits inside the Ontology Engineer and the Ontology Architect, at Carlyle and at Accenture as Senior Ontologist.

Prompt Reviewer is the second name from us. Someone checks the prompt and the answer against the ontology: the right object, an allowed action, approval when money moves. The Scientific Curator at FlyBase, Harvard, reads Drosophila literature, checks AI annotations, and sharpens the prompts that go into the pipeline. The check sits in that curation post. Prompt Reviewer is the name we put on it.

02 · The list

Which titles sat on a page?

Counted on October 1, 2026. A row is a title a page used, or a proposal marked as a proposal. Pay only where the ad states a range.

JobBasketKindWhere
Ontology EngineerFactPostingSamba TV, knowledge graph. RDF, OWL, SHACL. 150,000 to 180,000 dollars
Palantir Foundry Ontology EngineerFactPostingBooz Allen, Arlington. Ontology, workflow, AIP.
Senior Palantir Foundry Ontology EngineerFactPostingAverIQ, Houston, oil and gas. 150,000 to 175,000 dollars
Ontology DeveloperFactPostingTenth Revolution, Cologne, remote, twelve months.
Ontology ArchitectFactPostingCarlyle Group, New York or Washington. May 2026.
Senior OntologistFactPostingAccenture, Seattle. OWL 2, RDFS, SKOS. September 30, 2026.
Knowledge Graph and Ontology SpecialistFactPostingUniversity of Sheffield. 38,784 to 47,389 pounds
Knowledge Graph & Ontology EngineerFactPostingFluor, Vadodara. Plant engineering, RDF, SPARQL.
Ontology Expert & Knowledge Graph EngineerFactPostingSiemens, Bengaluru.
Knowledge Graph Engineer / OntologistFactPostingThe Hartford, June 2026. 156,000 to 234,000 dollars
Taxonomist / OntologistFactPostingGusto. Taxonomy for AI, prompt work as a capability.
Senior Knowledge Graph EngineerFactPostingEcoVadis. Ontology into a graph for agents. September 24, 2026.
Ontology Support EngineerFactPostingGSPANN. Objects, actions, write-back in operations.
Forward Deployed Software EngineerFactPostingPalantir. Many capabilities, one customer. Internal name Delta.
Forward Deployed AI EngineerFactPostingPalantir, on the careers page.
Deployment StrategistFactPostingPalantir, beside it. Closer to the deployment and the conversation.
Forward Deployed EngineerFactPostingAnthropic, Munich. 25 to 50 percent travel, Claude in the customer's system.
Knowledge EngineerFactOlder jobSheffield is hiring the Specialist and names the Knowledge Engineer in the text.
Scientific CuratorFactOlder jobHarvard, FlyBase. Checks AI annotations, sharpens prompts.
Ontology DesignerHypothesisProposalOur name for the boundary between object and field.
Prompt ReviewerHypothesisProposalOur name for checking the prompt and the answer against the ontology.
Data ModelerHypothesisOlder jobThe same boundary, earlier, in the ER diagram.
Process AnalystHypothesisOlder jobThe first workflow, before it becomes an object. The FDE does that part in the room.
Enterprise ArchitectHypothesisOlder jobThe overall model. The postings start at the single workflow.
Data StewardHypothesisOlder jobHolds the name when sales and assembly mean different things by "customer."
Information ArchitectHypothesisOlder jobThe navigation of the terms. Gusto posts it as Taxonomist.
Solutions ArchitectHypothesisOlder jobBuilds the branch into the system. Ontology Architect is the newer title at the same height.
03 · What is posted

Seventeen titles, eight old names, two proposals.

Fig. 01 · 27 rows. Green is the posting, 17. Gray is older job and proposal.

The Forward Deployed Software Engineer is the row where Palantir named the craft. Product engineer: one capability, many customers. FDSE: many capabilities, one customer. The careers page keeps the title, plus Forward Deployed AI Engineer and Deployment Strategist. Anthropic posts the same first name in Munich, with a travel share and with Claude in the customer's system. What the role does to the margin, and why the installation looks like consulting while the invoice looks like software, is in the ontology. The McGrinsey Ratio for Palantir sits there at 132.

The rest of the list is the layer under the new word. Knowledge Engineer is the older title. Sheffield uses it in the running text of a 2026 ad. Data Modeler, Process Analyst, Enterprise Architect, Data Steward, Information Architect, Solutions Architect: the work is known. The ads this autumn rarely call it that. Someone looking for a job looks for Ontology Engineer. Someone building a company starts with five objects, not the org chart.

Five objects, one burger, one action with an approval. The tool for that sits in the frame article.

04 · Facts table

17 pages. Two proposals.

StatementBasketFrom
17 titles sat on a posting or a careers page on October 1, 2026.FactSources below, one address per title.
Samba TV: Ontology Engineer, 150,000 to 180,000 dollars. AverIQ: 150,000 to 175,000. Sheffield: 38,784 to 47,389 pounds.FactThe range is in the ad.
Palantir: the FDSE unlocks many capabilities for one customer. The product engineer builds one capability for many customers. Internal name Delta.FactPalantir blog, A Day in the Life, 2020. Careers page September 29, 2026.
Ontology Designer and Prompt Reviewer are names from this piece. The work sits with the Ontology Engineer, the Architect, and the Scientific Curator.HypothesisOur naming, after the tasks in the ads.
Data Modeler, Process Analyst, Enterprise Architect, Data Steward, Information Architect, Solutions Architect are the same layer under older names.HypothesisA reading from the tasks in the ads, not from a single page with this title.
05 · Sources
  1. Samba TV, Ontology Engineer
    RDF, OWL, SHACL. 150,000 to 180,000 dollars. September 27, 2026.
    https://startup.jobs/ontology-engineer-knowledge-graph-identity-samba-tv-7858978
  2. Booz Allen, Palantir Foundry Ontology Engineer
    Arlington. Ontology, workflow, AIP.
    https://jobswithdod.com/defense-company-jobs/palantir-foundry-ontology-engineer-3/
  3. AverIQ, Senior Palantir Foundry Ontology Engineer
    Houston. 150,000 to 175,000 dollars.
    https://www.indeed.com/viewjob?jk=ced42e7b4c09a19f
  4. Tenth Revolution, Ontology Developer
    Cologne, remote, twelve months. October 1, 2026.
    https://www.freelancermap.de/projekt/palantir-foundry-ontology-developer-m-f-d-remote
  5. Ontology Architect, Carlyle
    New York or Washington. May 2026.
    https://vividresourcing.com/job/ontology-architect-palantir/
  6. Accenture, Senior Ontologist
    Seattle. OWL 2, RDFS, SKOS. September 30, 2026.
    https://haystackapp.io/jobs/8f0d8c5f-2ea4-4786-9693-a591aff5a611
  7. University of Sheffield
    Knowledge Graph and Ontology Specialist. 38,784 to 47,389 pounds. September 29, 2026.
    https://uk.linkedin.com/jobs/view/knowledge-graph-and-ontology-specialist-at-the-university-of-sheffield-4462517616
  8. Fluor, Knowledge Graph & Ontology Engineer
    Vadodara. RDF, OWL, SPARQL.
    https://thrivecareers.fluor.com/job/Vadodara-Knowledge-Graph-&-Ontology-Engineer-GJ/1378147500/
  9. Gusto, Taxonomist / Ontologist
    Taxonomy for AI systems.
    https://job-boards.greenhouse.io/gusto/jobs/7364020
  10. EcoVadis, Senior Knowledge Graph Engineer
    September 24, 2026.
    https://startup.jobs/senior-knowledge-graph-engineer-ecovadis-8803001
  11. GSPANN, Ontology Support Engineer
    Objects, actions, write-back.
    https://haystackapp.io/jobs/06889203-2eaa-4bd4-ad1b-06dce235ad4d
  12. Palantir, careers
    Forward Deployed Software Engineer, Forward Deployed AI Engineer, Deployment Strategist.
    https://www.palantir.com/careers/open-positions/
  13. Palantir blog, FDSE
    Many capabilities, one customer. Internal name Delta.
    https://blog.palantir.com/a-day-in-the-life-of-a-palantir-forward-deployed-software-engineer-45ef2de257b1
  14. Anthropic, Forward Deployed Engineer
    Munich. 25 to 50 percent travel. August 17, 2026.
    https://jobs.accel.com/companies/anthropic/jobs/90192188-forward-deployed-engineer
  15. Harvard, FlyBase, Scientific Curator
    Check of AI annotations, prompts in the curation pipeline.
    https://jobs.chronicle.com/job/37972743/scientific-curator/
  16. Ontology, the frame
    Four primitives, mini-ontology, Palantir, McGrinsey Ratio 132.
    https://mcgrinsey.com/magazin/ontology-four-primitives/

Research: October 1, 2026.