Senior Ontology Engineer

Czym będziesz się zajmować?

Andersen is hiring a Senior Ontology Engineer for a project building a large-scale Knowledge Graph and delivering AI-powered data and identity solutions.

The company is a global technology provider delivering data analytics and AI-powered solutions that help organizations better understand customer behavior, optimize marketing performance, and make informed business decisions.

The project is focused on building a large-scale Knowledge Graph and Identity platform that models relationships between audiences, content, brands, devices, and behavioral data.

Responsibilities

• Owning the end-to-end design, development, and versioning of core RDF/RDFS/OWL ontologies and SHACL validation frameworks.
• Defining ontology standards, derived-attribute schemas, aggregation/scoring logic, and governance practices aligned with W3C and relevant industry standards.
• Leading ontology design reviews and translating business requirements into scalable knowledge graphs and semantic data models.
• Co-designing derivation and transformation pipelines with Data Engineering using Databricks/Spark, including schemas and validation checkpoints.

Kogo poszukujemy?

Must-haves

• Bachelor's degree in Computer Science, Information Science, Computational Linguistics, Mathematics, or related fields.
• Hands-on experience in ontology engineering, semantic data modeling, or knowledge graph development for 5+ years, with a demonstrable track record of production ontologies at scale.
• Deep expertise in W3C semantic web standards: RDF, RDFS, OWL, SPARQL 1.1, and SHACL.
• Hands-on experience building and validating graph schemas in a production triplestore (Amazon Neptune, Stardog, GraphDB, Jena, or equivalent).
• Strong Python, including production-quality, well-tested code; comfortable building data pipelines and graph processing workflows.
• First-principles understanding of description logics, ontology design patterns, and the practical trade-offs between OWL expressivity and triplestore scalability.
• Hands-on experience with entity resolution, record linkage, or deduplication at scale (mapping messy, multi-source real-world data to clean ontological representations).
• Strong communication skills, ability to defend ontological modeling decisions in design reviews and explain trade-offs to non-specialist stakeholders.
• Level of English - from Intermediate+ and above.

Czego wymagamy?

Znajomości

• Agile
• Python

Języki

• Angielski

Jakie warunki i benefity otrzymasz?

• 20k-24.2k PLN netto/m (B2B)
• B2B - Stałe godziny pracy (100%)
• Praca zdalna: W całości
• Pakiet medyczny
• Kawa / Herbata

Kim jesteśmy? Andersen - your global software development partner Andersen is a global software development company with over 18 years of experience supporting businesses worldwide in their digital transformation.

Headquartered in Poland, we operate development centers across Germany, the USA, the UK, Lithuania, Hungary, Kazakhstan, Georgia, Azerbaijan, Cyprus, and the UAE, enabling us to deliver high-impact solutions close to our customers. We offer end-to-end IT services - from custom software development, API integration, and system architecture to legacy modernization and long-term support. With deep technical expertise and a focus on business value, we build tailored, scalable, and secure digital products. Harnessing the power of AI, Machine Learning, Data Science, Big Data, and Visual Technologies, we create intelligent, future-ready solutions that support digital transformation and solve real-world business problems.

Recognized among the world’s Top 1,000 B2B service providers, Andersen has earned the trust of industry leaders. Our portfolio includes long-term partnerships with Siemens, S&P Global, Ryanair, IHS Markit, TUI, Johnson & Johnson, T-Systems, and many more. With a team of 3,700+ highly qualified experts in 16+ global locations, we have successfully delivered over 1,000 projects across industries such as Healthcare, FinTech, Logistic, Automotive,

Manufacturing, E-commerce, Multimedia & Entertainment and more. Driven by responsibility, client-focus, and commitment to results, Andersen is your reliable tech partner for building high-ROI, future-proof digital solutions - anywhere in the world.