Ontology Engineer

Designs and builds the OntoSphere KG — the canonical model that fuses SOPIA, ISO 20022, FIBO, PROV-O, and Client PayOps ontologies. Front-loaded role: most intensive in P0-P1 during ontology consensus, then transitions to consult/maintenance through hyper-care. Ontology design choices made here are very expensive to change later.
MUST-HAVE SKILLS (GO/NO-GO)
#
Skill
Years Required
Specific Context / Tools


Knowledge Graph database
sNeo4j, Stardog, Graph DB, AWS Neptune, or Apache Jen

a
SPAR
QLComplex queries, federated queries, optimizati

on
RDF /
OWLOntology modeling, OWL reasoning, named gra

phs
S
HACLConstraint validation, shape design, error repor

ting
Python OR
JavaKG integration code; rdflib, owlready2, or Apache

Jena
Banking ontologies (or willin
gness)FIBO, ISO 20022, FRO, or rapid learning track-

record
Schema / domain m
odelingProperty graphs vs RDF tradeoffs; domain-driven
designOntology engineering
processTop-down vs bottom-up; competency questions; it
erationNICE-TO-HAVE SKILLS (different
iators)• Wikidata / DBpedia exp
erience• Ontology alignment / mapping (LIMES
, Silk)• PROV-O provenance modeling for audit
trails• Reasoning engines (Pellet, Hermi
T, ELK)• Property graph (Cypher / Gremlin) exp
erience• Apache Jena Fuseki or Graph DB Wo
rkbench• RDF* / RDF-star for statement-level m
etadata• KG embeddings (TransE, ComplEx
, RGCN)CERTIFI
CATIONS• OMG Certified Expert in BPM (CEBPM) — for FIB
O depth• Stardog certifi
cationsSOFT SKILLS (interview-val
idated)• Patient with stakeholder ontology debates (consensus i
s slow)• Strong communicator with non-technic
al SMEs• Iterative ontology evolution mindset (not big-design-up
-front)• Documentation discipline — ontologies live or die

by docs
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