Senior Full Stack & Healthcare Integration EngineerCompany: NPB Labs S.L.

Location: Barcelona, Spain / 100% Remote

Type: Full-time

Language: Professional English

Seniority: Senior

About the RoleNPB Labs S.L. is looking for a Senior Full Stack & Healthcare Integration Engineer with strong software development experience and hands-on knowledge of laboratory equipment integration, HL7, ASTM, FHIR, and healthcare interoperability.

This role combines traditional Full Stack development with the design and implementation of interfaces connecting laboratory analyzers, middleware, LIS/HIS platforms, clinical systems, and external services.

We are looking for someone comfortable working close to both software and medical/laboratory equipment, capable of analyzing communication protocols, implementing interfaces, troubleshooting connectivity and message-level issues, and taking integrations from specification through production.

What You Will Do

- Develop modern web applications using React and TypeScript.
- Design and implement backend services and APIs using Node.js, Python, or equivalent technologies.
- Design, build, and maintain healthcare and laboratory system interfaces.
- Integrate laboratory analyzers and medical equipment with LIS/HIS and other enterprise platforms.
- Implement integrations using:
- HL7 v2.x
- ASTM
- FHIR
- REST APIs
- TCP/IP
- Serial communications where required
- Vendor-specific protocols
- Develop bidirectional interfaces for:
- Work orders
- Patient and demographic information
- Sample identification
- Test requests
- Analyzer results
- Flags and instrument status
- Validation workflows
- Parse, transform, validate, route, and persist healthcare messages.
- Map proprietary equipment protocols into standardized internal data models.
- Troubleshoot communication problems between instruments, middleware, LIS, HIS, and external systems.
- Analyze protocol documentation and vendor interface specifications.
- Implement message acknowledgements, retries, error handling, queues, and reconciliation mechanisms.
- Maintain complete audit trails and traceability for exchanged information.
- Design interfaces capable of operating reliably in mission-critical laboratory environments.
- Build tools for monitoring interface connectivity, message flow, errors, retries, and equipment status.
- Participate in cloud architecture and deployments on AWS.
- Maintain CI/CD pipelines using GitHub Actions.




- Perform code reviews, automated testing, debugging, and production support.
- Work closely with laboratory specialists, product teams, integration engineers, DevOps, QA, and equipment vendors.

Core Technology StackFull Stack

- React
- TypeScript
- Node.js and/or Python
- REST APIs
- SQL
- PostgreSQL / MySQL
- Docker
- AWS
- GitHub
- GitHub Actions

Healthcare Integration

- HL7 v2.x
- FHIR
- ASTM
- MLLP
- TCP/IP
- REST / JSON
- XML
- Serial communication
- Message parsing and transformation
- Interface engines
- Healthcare data mapping
- Bidirectional instrument interfaces

Laboratory Equipment IntegrationCandidates should understand how laboratory instruments communicate with information systems.

Relevant experience includes

- Chemistry analyzers
- Immunoassay systems
- Hematology analyzers
- Molecular diagnostics
- Microbiology systems
- Laboratory automation
- Pre-analytical and post-analytical equipment
- Middleware
- LIS connectivity

Experience integrating equipment from manufacturers such as Roche, Abbott, Siemens Healthineers, Beckman Coulter, Sysmex, bioMérieux, or similar vendors is highly desirable. Required Experience

- 6+ years of professional software engineering experience.
- Strong Full Stack development background.
- Strong experience with React and TypeScript.
- Strong backend development experience.
- Hands-on experience implementing healthcare or laboratory interfaces.
- Practical knowledge of HL7.
- Practical knowledge of ASTM or laboratory instrument communication protocols.
- Experience integrating laboratory or medical equipment.
- Strong understanding of TCP/IP communications.
- Experience designing and consuming REST APIs.
- Strong SQL and relational database knowledge.
- Experience debugging complex integrations and message flows.
- Experience with Git, GitHub, and CI/CD.
- Ability to read technical and equipment interface specifications.
- Ability to independently own an integration from analysis through production.





HL7 ExperienceCandidates should be familiar with common HL7 concepts including:

- HL7 v2.x messages
- Segments and fields
- ADT
- ORM
- ORU
- ACK / NACK
- Message control IDs
- MLLP
- Custom Z-segments
- Message mapping
- Validation
- Error handling
- Interface troubleshooting

ASTM & Equipment InterfacesExperience with ASTM-based laboratory communication is highly valued. The candidate should understand concepts such as:

- Host-to-instrument communication
- Instrument-to-host communication
- Orders and results
- Bidirectional interfaces
- ASTM records
- Framing
- Checksums
- ACK / NAK
- ENQ / EOT
- Timeouts
- Retries
- Sequence control
- Serial and TCP/IP transport
- Vendor-specific ASTM variations

FHIRExperience with FHIR is desirable, particularly:

- Patient
- Practitioner
- Organization
- ServiceRequest
- Specimen
- Observation
- DiagnosticReport
- Bundle
- RESTful FHIR APIs
- Resource mapping
- JSON representations

Integration Engineering MindsetWe are looking for someone who understands that healthcare integration is not simply API development. The candidate should be comfortable diagnosing issues across:

Equipment → Communication Protocol → Interface → Middleware → LIS/HIS → Database → Application

They should be able to determine whether an issue originates in the instrument, network, protocol implementation, message mapping, application logic, or receiving system.

Nice to Have

- LIS implementation experience
- HIS / EHR integrations
- Interface engines such as Mirth / NextGen Connect
- DICOM
- Laboratory middleware
- Instrument drivers
- High-volume laboratory environments
- AWS
- Event-driven architectures
- SQS / SNS / EventBridge
- Docker
- Terraform
- Kubernetes
- Healthcare security and data privacy
- ISO 15189 environments
- Regulated healthcare systems

EnglishProfessional working proficiency in English is required.

Candidates must be comfortable

- Reading vendor and protocol documentation in English.
- Communicating with international equipment manufacturers.
- Participating in technical meetings.
- Troubleshooting interfaces with external technical teams.
- Writing technical documentation.

Working Model

- 100% Remote
- Full-time
- Company based in Barcelona
- International environment
- High technical autonomy
- Direct interaction with healthcare systems, laboratory equipment, and software architecture
- Long-term product development

📌 Senior Full Stack & Healthcare Integration Engineer (España)
🏢 NPB Labs
📍 España