About Tietai
Tietai builds the data platform European hospitals rely on to unlock clinical and operational insights from fragmented systems. Tiet · Connect is our healthcare integration engine, and Tiet · Studio is our visual workflow builder, with Tiet · Agentic agents as steps. 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 Tiet · Connect and Tiet · Studio. 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 Tiet · Connect, then build the agentic workflows 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 Tiet · Connect and Tiet · Studio evolve.
What you will do
Tiet · Connect: data integration
- Design and operate integration channels inside Tiet · Connect, including source connectors, transformers, filters and destinations for HL7 v2, FHIR R4, DICOM / DICOMweb, CDA, X12/EDI, IHE PCD, IHE XDS.b and flat-file exports.
- Deploy Tiet · 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 Tiet · 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 operations teams can actually use.
Tiet · Studio: workflow creation
- Build agentic workflows in Tiet · Studio's visual builder, stitching data from Tiet · Connect into clinical and operational workflows such as patient sync, coding assistance, cohort building, reporting and anomaly detection.
- Extend Tiet · Studio with new nodes and handlers when customer needs outrun what the visual builder offers today.
- Own audit logging, RBAC and compliance validation for the workflows we ship, with GDPR and EHDS built in from the start.
Cross-cutting work
- 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 workflow review practices and on-call procedures.
- Turn recurring integration friction into reusable Tiet · Connect connectors and Tiet · Studio nodes, so the next deployment is faster than the last.
What we are looking for
- 5–8 years as a Data Engineer, Integration Engineer or Platform Engineer.
- Production experience with Go systems: Tiet · Connect and Tiet · Studio are both Go services.
- Strong SQL and PostgreSQL, plus solid Python for tooling, data work and agent/ML services.
- Hands-on experience with at least one healthcare integration engine such as Mirth Connect, Rhapsody, InterSystems Ensemble/HealthShare, NextGen Connect, Iguana or equivalent.
- Real experience with HL7 v2 and FHIR R4, including parsing, building, mapping, Z-segments, non-conformant feeds and profile drift.
- Experience with event or streaming backbones such as NATS or Kafka, and multi-tenant system design.
- Experience deploying into customer-controlled environments, including on-premise, 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.
Nice to have
- Built or migrated Mirth Connect channels at scale.
- Experience with DICOM / DICOMweb, PACS integration or imaging workflows.
- Experience with X12/EDI or national claims standards.
- Exposure to OMOP, openEHR, SNOMED CT, ICD-10 / CIE-10 or UMLS.
- Familiarity with EHDS, GDPR, Spanish LOPDGDD, ENS or HIPAA.
- Experience designing workflows or tools used by clinicians, analysts or other non-engineers.
- Mentoring engineers or leading small teams.
What we offer
- Competitive salary.
- 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 Tiet · Connect and Tiet · Studio as they scale.
- Learning budget, conference allowance and hardware of your choice.
