OrbisGraph by Pinnipedia logo
OrbisGraph by Pinnipedia

The fastest path to IT-Grundschutz. Security concepts executed with precision and consistency.

Senior AI, Knowledge Graph Engineer

AI EngineerMachine Learning EngineerFull TimeRemoteSeniorTeam 2-10Since 2025Company SiteLinkedIn

Location

Germany

Posted

4 days ago

Salary

€60K - €85K / year

Seniority

Senior

Bachelor Degree5 yrs expEnglishAirflowNeo4jPostgreSQLPythonSQL

Job Description

Senior AI, Knowledge Graph Engineer

OrbisGraph by Pinnipedia

• Own the end-to-end pipeline that turns unstructured documents into a validated, queryable knowledge graph. • Accountable for extraction quality, graph integrity, and the data layer that backs the product's read path. • LLM extraction pipelines - document chunking, property and relationship extraction, cross-chunk reconciliation, gap detection. • Knowledge graph - schema design as typed Pydantic models, Cypher access patterns and indexing strategy, graph operations, schema evolution and migration. • Deterministic rule engines - table-driven evaluators for cases where code beats LLM judgment; clear contracts between deterministic and probabilistic components. • Data validation & quality - schema enforcement, required-property contracts, audit trails, eval harnesses (expert review, unsupervised checks, synthetic fixtures, LLM-as-judge). • Live data ops - backfills, coordinated migrations across relational + graph stores, observability on extraction throughput and quality, incident response.

Job Requirements

  • 5+ years shipping data/AI systems to production with real customers - has been on-call for live pipelines and knows what breaks at 2am.
  • Strong Python (typed, modern) and SQL.
  • Comfortable with PostgreSQL under load.
  • Production experience with at least one graph database (Neo4j preferred; Neptune, ArangoDB, TigerGraph acceptable) - schema design, query tuning, not toy use.
  • Production LLM pipeline experience: structured output, agent orchestration, prompt and version management, evaluation frameworks.
  • PydanticAI, LangChain, DSPy, or Instructor all welcome.
  • Durable workflow orchestration in production (DBOS, Temporal, Airflow, Prefect, Dagster).
  • Test-first discipline - integration tests against real datastores (Testcontainers or equivalent), not mock-heavy unit tests.
  • Fluent English skills.

Benefits

  • Remote, full-time with flexible scheduling.
  • CET (Berlin) timezone availability expected.
  • Possibility of relocation if successful work relationship is achieved after a period of time.
  • Competitive salary (premium for exceptional senior profiles).
  • Small, focused team; direct collaboration with the Product Owner and Full-Stack Engineer.
  • Modern tooling, real ownership, and a learning budget for role-relevant training.

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