One of the companies we work with at Joppy is looking for a Data Engineer – Knowledge Graphs to join the team.
We’re looking for a Data Specialist focused on Knowledge Graphs to join our client team. You’ll work at the intersection of big data, semantics, and AI, helping architect and scale our graph-based data infrastructure. Your role will focus on designing and maintaining data systems that power our knowledge graph platform - including RDF graphs, ontologies, and semantic validation/querying pipelines. You'll contribute to a deeply technical mission: representing and verifying information in a structured, trustworthy way.
What you’ll do
- Design, build, and maintain scalable graph-based data pipelines (batch and streaming)
- Model and manage Knowledge Graphs at scale
- Explore and work with graph databases such as Neo4j, JanusGraph, or Amazon Neptune
- Collaborate closely with the Data and AI teams on data modeling, storage, and transformation
- Promote a culture of clean, reliable, and meaningful data engineering
What we’re looking for
- At least 5 years of experience as Data Engineer/Scientist
- 2+ years of hands-on experience with Knowledge Graphs or Semantic Web technologies
- Background in Data Engineering or Data Science (engineering preferred)
- Experience with Knowledge Graph technologies (no matter if RDF based or PLGs)
- Proficiency with general data engineering tools
- Familiarity with AWS Neptune or similar managed graph solutions is a plus
- Curious, collaborative, and excited to tackle a specialized, high-impact challenge
Offered:
- Work alongside a founder with a proven track record in AI startups
- Join a company dedicated to building AI for good - focused on trust and impact
- Competitive compensation package plus stock options
- Based in Cloudworks, a dynamic co-working space near Passeig de Gràcia in Barcelona; enjoy the perks that come from being part of Cloudworks, like gym subscription and restaurant discounts
- A supportive, inclusive, and horizontal culture that values authenticity and growth
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