Founding Engineer (Knowledge Graph / AI Systems)

ContextFab GmbH
München, Germany
4 days ago

Role details

Contract type
Temporary contract
Employment type
Full-time (> 32 hours)
Working hours
Regular working hours
Languages
English, German

Job location

München, Germany

Tech stack

Artificial Intelligence
Automated Storage and Retrieval Systems
ETL
Data Transformation
Distributed Systems
Graph Database
Python
Neo4j
Reliability Engineering
Search Technologies
Management of Software Versions
Rust
Performance Testing
Large Language Models
Multi-Agent Systems
Prompt Engineering
Build Management
Information Technology
Data Pipelines

Job description

We're building context/fab, a venture-backed industrial AI startup on a mission to upgrade manufacturing by solving the hardest data problems on the shop floor.

As our Founding Engineer (Knowledge Graph / AI Systems), you'll architect and build the intelligence layer that powers our platform - from graph-based RAG to agentic workflows to robust LLM evaluation pipelines. You'll work directly with the founders to define how industrial knowledge is modelled, retrieved, reasoned over, and validated across real-world factory environments.

This is a deeply technical, high-ownership role for someone who wants to invent and ship the core AI systems behind a category-defining product.

What You'll Do

  • Design and build our industrial knowledge graph: schema, ontology, data modelling, ingestion, enrichment, and versioning
  • Architect and implement graph-based RAG pipelines, retrieval strategies, and hybrid search
  • Develop agentic workflows that orchestrate tools, models, and data sources across the manufacturing stack
  • Build and maintain rigorous LLM evaluation, benchmarking, and performance testing methodologies
  • Develop scalable Python systems for data transformation, embedding pipelines, prompt strategies, and model routing
  • Work with real factory data - noisy, unstructured, multimodal - and turn it into structured context for reasoning
  • Collaborate closely with fullstack/infrastructure/edge teams to integrate graph/RAG/agentic systems into production services
  • Work with edge-connectivity and ingestion teams to model data flowing from real-time factory systems into the graph
  • Prototype, experiment, and ship improvements to model quality, latency, reliability, and grounding
  • Act as a true partner to the founders - defining our AI direction, research priorities, and technical strategy

Requirements

Do you have experience in Rust (programming language)?, Do you have a Master's degree?, * Strong experience in Python and building production-grade data/AI systems

  • Experience with knowledge graphs (Neo4j, FalkorDB, or similar)
  • Be product-minded and excited about deeply understanding customer problems without being spoon-fed requirements
  • Deep familiarity with retrieval systems, embeddings, semantic search, or vector stores
  • Experience with LLM evaluation, testing harnesses, model benchmarking, and reliability engineering
  • Hands-on experience with RAG pipelines, prompt engineering, and agent frameworks is a big plus
  • Comfort working with messy, heterogeneous real-world datasets
  • Understanding of distributed systems, data modelling, or ETL/ELT pipelines
  • Exposure to Go/Rust ecosystems is helpful
  • Pragmatic: you care about shipped impact, not research for its own sake
  • Entrepreneurial - you want to build foundational systems at the earliest stage of a company
  • Fluent in English; German is a plus, * Bachelor's or Master's in Computer Science, Engineering, AI/ML, Data Science, or related field
  • Strong communication and collaboration skills
  • Comfortable working independently in a high-ambiguity, high-velocity environment

Benefits & conditions

  • Work directly with founders at the earliest stage of a startup
  • Build at the intersection of AI, manufacturing, and data - solving problems with huge real-world impact
  • Excited about building up deep tech capabilities to keep manufacturing competitive in Europe
  • Shape our engineering culture in our Munich office
  • Competitive salary and meaningful early equity
  • Grow faster than anywhere else - experience a 10-year career in 2 years

Apply for this position