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 doDesign, build, and maintain scalable graph-based data pipelines (batch and streaming)Model and manage Knowledge Graphs at scaleExplore and work with graph databases such as Neo4j, JanusGraph, or Amazon NeptuneCollaborate closely with the Data and AI teams on data modeling, storage, and transformationPromote a culture of clean, reliable, and meaningful data engineeringWhat we’re looking for2+ years of hands-on experience with Knowledge Graphs or Semantic Web technologiesBackground 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 toolsFamiliarity with AWS Neptune or similar managed graph solutions is a plusCurious, collaborative, and excited to tackle a specialized, high-impact challengeHiring Process (Conversation-Based)Technical conversation around candidate's experienceSystem design interview (onsite preferred)Cultural fit chat with CEOOfferAbout JoppyJoppy is a technology recruitment platform built for developers by developers.✅ No CV is required. Just say what you know and what you want.✅ Anonymous profile by default.✅ You choose who can talk to you. Companies cannot write to you until you accept their offer.✅ Only relevant offers that match your preferences. No more Javascript offers for Java developers.✅ Get rewarded if you get hired.Keep an eye on tech job opportunities anonymously and find the job that makes you happy.