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Solutions Engineer - Data/Graph

Backend Developer • On-site • Full-time • 📍 Rotterdam | Frankfurt | Munich | Nürnberg

Mendix, a Siemens business, is looking for a Solutions Engineer (Data & Graph) on the Technical Solutions Marketing team, designing the knowledge graphs and ontologies that underpin Mendix's AI solutions.

Responsibilities

  • Design and build knowledge graphs and ontologies that underpin Mendix's AI solutions, technical demos, and customer implementations
  • Own the data and graph architecture workstream within integrated team solutions, working alongside Solutions Engineers covering the application and AI layers
  • Turn validated customer work into reusable assets: reference architectures, blueprints, accelerators, and repeatable patterns
  • Contribute to customer engagements, events, and analyst briefings as the team's expert in data and graph
  • Ground GTM positioning and storytelling in validated technical proof points, supporting executive demos and analyst briefings

Requirements

  • Demonstrable hands-on experience designing and building knowledge graphs and ontologies
  • Strong understanding of graph data modelling, semantic modelling, and ontology design
  • Experience with graph database platforms and query languages (e.g. SPARQL, Cypher, or equivalent)
  • Data engineering fundamentals: pipelines, data preparation, and integration with enterprise systems (ERP, CRM, operational systems)
  • Ability to translate data and graph architectures into reusable patterns and clear technical narratives

Soft skills

Strong communication and collaboration skills across Product, GTM, engineering, and customer stakeholders

About the company

Mendix is the leading low-code application development platform, using visual modeling to abstract long-form coding out of application development. As part of Siemens, Mendix powers hybrid agentic workforces by combining low-code, AI, data, and integrations into a unified platform.

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