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PTPinnipedia Technologies GmbH
Pinnipedia Technologies GmbHCybersecurity

Senior AI / Knowledge Graph Engineer

Location

Berlin, Germany

Work type

Remote

Employment

Full Time

Experience

5-10 years

Compensation

€32K - €42K per year

Posted

2d ago

Summary and responsibilities

Role overview

Summary

This role involves owning the end-to-end pipeline for transforming unstructured documents into a validated, queryable knowledge graph. The engineer will be accountable for extraction quality, graph integrity, and the data layer supporting the product's read path.

Your Mission

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.

Tasks

  • LLM extraction pipelines -document chunking, property and relationship extraction, cross-chunk reconciliation, gap detection. Built with structured-output LLM agents orchestrated by durable workflows.

  • Knowledge graph -schema design as typed Pydantic models, Cypher access patterns and indexing strategy, graph operations, schema evolution and migration. Scope ends at the graph boundary: API contracts and query abstractions exposed to consumers belong to the full-stack engineer.

  • 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.

Requirements

Must-have

  • 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.

Nice-to-have

  • Experience with regulated, compliance-driven, or standards-heavy extraction domains (legal, medical, financial, security/audit).

  • Designed deterministic evaluators alongside LLM components and knows when to reach for which.

  • Contributions to data contracts, schema governance, or ontology work.

Benefits

  • Remote, full-time with flexible scheduling. CET (Berlin) timezone availability expected.

  • Possibility of relocation if successfull work relationship is achieved after a period of time.

  • Competitive salary: 32.000–42.000 € base (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.

  • Impact: help SMEs meet rising security requirements with less friction.

Updated 2d ago

Candidate fit

Skills and qualifications

Additional skills

Python • 1+ yrs
SQL • 1+ yrs
PostgreSQL • 1+ yrs
Neo4j • 1+ yrs
Neptune • 1+ yrs
ArangoDB • 1+ yrs
TigerGraph • 1+ yrs
LLM • 1+ yrs
PydanticAI • 1+ yrs
LangChain • 1+ yrs
DSPy • 1+ yrs
Instructor • 1+ yrs
DBOS • 1+ yrs
Temporal • 1+ yrs
Airflow • 1+ yrs
Prefect • 1+ yrs
Dagster • 1+ yrs
Testcontainers • 1+ yrs
Data Validation • 1+ yrs
Schema Design • 1+ yrs
Query Tuning • 1+ yrs
Agent Orchestration • 1+ yrs
Prompt Management • 1+ yrs
Version Management • 1+ yrs
Evaluation Frameworks • 1+ yrs
Workflow Orchestration • 1+ yrs
Test-first discipline • 1+ yrs
Incident Response • 1+ yrs
Observability • 1+ yrs
Data Contracts • 1+ yrs
Schema Governance • 1+ yrs
Ontology • 1+ yrs

Experience

5-10 years

How this role is positioned

Role classification

Job domains

Software Engineering

Industries

Cybersecurity

Employment

Full Time

Contract duration

Permanent

Hiring type

Direct

Global hiring

Location specific

Offer details

Compensation and benefits

Compensation

€32K - €42K per year

VisibilityShared on listing
CurrencyEUR
PeriodYearly

Benefits and perks

Relocation Assistance

Location, schedule, and role shape

Work setup

Work conditions

Primary locationBerlin, Germany
Work typeRemote
Global hiringNo

Bandwidth profile

peopleMedium6/10
physicalLow1/10
cognitiveHigh9/10
executionHigh8/10
creativityHigh8/10
uncertaintyHigh8/10
communicationMedium7/10

Context on the employer

Company snapshot

Company

Pinnipedia Technologies GmbH

Team size

Growing team

Location

Berlin, Germany

Pinnipedia is a new Berlin startup building a cloud platform that automates and assists the creation of audit-ready IT-security concepts (e.g., BSI-Grundschutz, C5). We’re IGP-funded (2025/26) and co-develop with FU Berlin and pilot users from industry and security consulting.

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Senior AI / Knowledge Graph Engineer

Berlin, GermanyFull Time