Senior Data Engineer - Hydra Platform
Own healthcare integration and pipeline delivery across Hydra Connect and Hydra Platform, turning hospital data feeds into reliable, governed clinical and operational workflows.
Location & Working Hours Madrid, Spain Hybrid Full-time Travel: Regular customer-site travel across Spain and the EU.
About TietAI TietAI builds the data platform European hospitals rely on to unlock clinical and operational insights from fragmented systems. Hydra Connect is our healthcare integration engine, and Hydra Platform is our agentic pipeline engine with a visual builder. They deploy inside hospital environments and bridge EHRs, LIS, RIS/PACS, administrative systems, and cross-border data networks under the European Health Data Space.
The role We are hiring a Senior Data Engineer to own integration and pipeline delivery on top of Hydra Connect and Hydra Platform. You will turn a hospital's tangle of HL7 feeds, FHIR endpoints, DICOM nodes, X12 files, and legacy exports into reliable, governed data flowing through Hydra, then build the agentic pipelines clinical users rely on. You will also be the technical partner for a mid-level data engineer joining alongside you, and a voice in how Hydra Connect and Hydra Platform evolve.
What you will do Hydra Connect - data integration
Deploy Hydra Connect in hub-spoke topologies across hospital sites, tuning the NATS / Kafka / gRPC / Redis backbone for each customer's network and latency profile.
Lead Mirth Connect migrations: parse existing Mirth channel XML, port it into Hydra Connect pipelines, and retire the legacy engine without gaps in message flow.




Enforce multi-tenant isolation with organization-scoped writes and JWT tenant stamping, and design DLQ / replay strategies hospital ops teams can actually use.
Build agentic pipelines in Hydra Platform's visual builder, stitching Connect-ingested data into clinical and operational workflows such as patient sync, coding assistance, cohort building, reporting, and anomaly detection.
Partner with hospital IT, clinical informatics, and security teams to navigate access, networking, identity, and governance.
Mentor a mid-level Data Engineer and establish channel and pipeline review practices and on-call procedures.
Turn recurring integration friction into reusable Connect connectors and Hydra nodes so the next deployment is faster than the last.
5-8 years as a Data Engineer, Integration Engineer, or Platform Engineer.
~ Strong SQL and PostgreSQL, plus solid Python for tooling, data work, and agent/ML services.
~ Experience with event or streaming backbones such as NATS or Kafka, and multi-tenant system design.
~ Experience deploying into customer-controlled environments, including on-prem, private cloud, or hybrid setups.
~ Comfort with Kubernetes, containerised deployments, restricted hospital networks, ArgoCD, and GitOps.
~ Clear communication in English. Spanish is a strong plus given our customer base.

Familiarity with EHDS, GDPR, Spanish LOPDGDD, ENS, or HIPAA.
Hybrid work, office-based in Madrid, with regular travel to customer hospital sites.
Private health insurance, pension, and standard benefits.
A senior, product-minded team and real ownership over Hydra Connect and Hydra Platform as they scale.
Learning budget, conference allowance, and hardware of your choice.
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📌 Senior Data Architect - Cloud (Madrid)
🏢 TietAI
📍 Madrid