Ontology Architect

Tiger Analytics; United States; On-site; USD 140,000 - 200,000; Full time

Job summary

Tiger Analytics is seeking an Ontology Architect to lead enterprise-scale ontology design, knowledge graph architecture, and semantic-layer governance. You will collaborate with data teams to map and augment data products while applying semantic reasoning to surface actionable insights.

The role emphasizes rigorous experimentation, business leadership, and impact at scale within a data-driven analytics environment.

Qualifications

• Expert-level mastery of core semantic technologies.
• Hands-on experience with production-grade Graph Databases / Triple Stores (e.g., GraphDB, Stardog, Amazon Neptune, AllegroGraph, or Neo4j).
• Proficiency with ontology engineering and taxonomy tools (e.g., Protégé, TopBraid Composer, PoolParty).
• Clear understanding of Data Mesh paradigms and designing a semantic layer over federated Data Products.
• Strong foundation in relational databases, dimensional modeling, and ETL/ELT patterns.

Responsibilities

• Ontology & Taxonomy Design: lead creation and evolution of ontologies and vocabularies across domains.
• Knowledge Graph Architecture: design scalable graph architecture, ingestion pipelines, and governance.
• Semantic Layer Strategy: maintain enterprise semantic layer for a unified, machine-readable data view.
• Data Product Augmentation: map and link data products using central ontology for interoperability.
• Inference & Reasoning: implement semantic rules to generate metadata and insights.
• Governance & Standards: establish best practices and data contracts for semantic models.

Skills

Semantic standards

Knowledge graph engineering

Ontology modeling tools

Data mesh / semantic layer

Traditional data modeling

Tools

GraphDB

Stardog

Amazon Neptune

AllegroGraph

Neo4j

Protégé

TopBraid Composer

PoolParty

Job description

Tiger Analytics is an advanced analytics consulting firm. We are the trusted analytics partner for several Fortune 100 companies, enabling them to generate business value from data. Our consultants bring deep expertise in Data Science, Machine Learning, and AI. Our business value and leadership have been recognized by various market research firms, including Forrester and Gartner.

We are looking for an Ontology Architect to lead high-impact applied Engineering and analytics initiatives. This role combines deep technical expertise, strong experimentation rigor, and business leadership to influence product direction and drive measurable outcomes at scale.

Responsibilities

• Ontology & Taxonomy Design: Lead the creation, modeling, and evolution of enterprise-wide ontologies, taxonomies, and controlled vocabularies that accurately represent complex business domains
• Knowledge Graph Architecture: Design and implement scalable architecture, ingestion pipelines, and governance for enterprise Knowledge Graphs (Triple Stores or Property Graphs)
• Semantic Layer Strategy: Build and maintain the enterprise semantic layer to abstract physical data complexities, providing a unified, machine-readable business view of data
• Data Product Augmentation: Partner with domain data teams to map, link, and augment decentralized Data Products using the central ontology to ensure semantic interoperability across the organization
• Inference & Reasoning: Implement semantic reasoning and inference rules to automatically generate new metadata and uncover hidden insights within the graph
• Governance & Standards: Establish best practices, version control mechanisms, and data contracts for semantic models, ensuring consistent graph schema updates across business units

Requirements

• Semantic Standards: Expert-level mastery of core semantic technologies
• Knowledge Graph Engineering: Hands-on experience designing and operating production-grade Graph Databases / Triple Stores (e.g., GraphDB, Stardog, Amazon Neptune, AllegroGraph, or Neo4j)
• Ontology Modeling Tools: Proficiency with industry-standard ontology engineering and taxonomy management software (e.g., Protégé, TopBraid Composer, PoolParty)
• Modern Data Frameworks: Clear, practical understanding of Data Mesh paradigms, specifically how to design a semantic layer that overlays federated, domain-driven Data Products
• Traditional Data Modeling: Strong baseline in classic data concepts, including relational databases, dimensional modeling, and ETL/ELT integration patterns

Preferred Skills

• Data Quality & Validation: Hands-on experience to enforce data quality and constraint validation across graph structures
• Advanced AI & Graph Analytics: Familiarity with graph algorithms, graph machine learning (GNNs), or leveraging Knowledge Graphs to enhance Large Language Model architectures via Graph RAG (Retrieval-Aug Generation)

Benefits

Significant career development opportunities exist as the company grows. The position offers a unique opportunity to be part of a small, fast-growing, challenging and entrepreneurial environment, with a high degree of individual responsibility.

Tiger Analytics provides equal employment opportunities to applicants and employees without regard to race, color, religion, age, sex, sexual orientation, gender identity/expression, pregnancy, national origin, ancestry, marital status, protected veteran status, disability status, or any other basis as protected by federal, state, or local law.