At NextLink, we are looking for an experienced Senior Software Engineer to join our team and collaborate on an innovative project for one of our leading clients in the pharmaceutical industry. The role focuses on developing and scaling an Enterprise Knowledge Graph (EKG) platform, connecting Semantic Web technologies, AI agents, and cloud data platforms to enable trusted, AI-powered conversational analytics. Scope & Main Responsibilities
• Develop, scale, and maintain the EKG Semantic Layer's MCP Server.
• Build robust backend services using Python, FastAPI, and Pydantic.
• Optimize SPARQL queries, graph traversals, caching, and API performance.
• Develop semantic models using RDF, OWL, SKOS, SHACL, and R2RML.
• Integrate semantic services with Snowflake, graph databases, and AI agents.
• Manage deployments, testing, and CI/CD pipelines on OpenShift/Kubernetes.
• Implement API security, monitoring, and observability. Requirements




• 5+ years of experience in backend software engineering.
• Strong expertise in Python 3, FastAPI, Pydantic, and REST APIs
• Hands-on experience with RDF, SPARQL, and graph data modeling.
• Experience with Docker, Kubernetes/OpenShift, and CI/CD pipelines.
• Solid knowledge of SQL, Snowflake (or equivalent), and cloud platforms.
• Familiarity with OAuth 2.0, RBAC, Terraform, and API performance optimization.
• Fluent English. Nice-to-Have
• Experience with MCP servers, Agentic AI, LLM integrations, or Text-to-SQL.
• Knowledge of OWL, SKOS, SHACL, R2RML, and semantic modeling frameworks.
• Experience with Stardog, metaphactory, or other graph databases.
• AWS cloud experience.
• Background in the pharmaceutical or Life Sciences industry.

📌 Senior Software Engineer – EKG Semantic Layer (San Cugat del Vallés)
🏢 Next-link
📍 San Cugat del Vallés