Senior Interoperability Engineer: Scalable Health APIs & Kafka

Intellias; Polska; On-site; PLN 180,000 - 240,000; Full time

Benefits offered by this job

Quarterly bonus (private medical care)

Birthday gifts

E-learning accounts

Job summary

Intellias is seeking a Senior Interoperability Engineer to design and scale healthcare integrations for a Digital Health platform connecting providers, payers, clinical systems, and external networks.

The role is hands-on, focusing on Python, Kafka, high-scale REST/FHIR APIs, OAuth-based security, and cloud-native services, with responsibilities spanning architecture discussions, testing, and reliability improvements.

Qualifications

• 5+ years of backend or integration engineering experience.
• Strong hands-on experience with Python in production environments.
• Experience designing and operating high-scale REST APIs and backend services.
• Strong experience with Kafka or comparable event-streaming technologies.
• Solid understanding of distributed and event-driven architectures.
• Strong experience with API authentication and authorization, including OAuth 2.0, OIDC, and JWT.
• Experience integrating external systems and APIs in complex enterprise environments.
• Hands-on experience with FHIR or healthcare interoperability APIs.
• Strong understanding of API reliability, error handling, retries, idempotency, and observability.
• Experience with SQL and/or NoSQL databases.
• Experience with Docker, cloud-native environments, and CI/CD.
• Strong troubleshooting and production problem-solving skills.

Responsibilities

• Design and develop scalable healthcare interoperability services and APIs.
• Build event-driven integrations using Python and Kafka.
• Implement and support FHIR-based healthcare data exchange.
• Develop secure APIs using OAuth 2.0/OIDC and JWT.
• Integrate external healthcare systems, data providers, and partner APIs.
• Implement data validation, transformation, mapping, and error-handling logic required for interoperability workflows.
• Troubleshoot complex integration, authentication, and distributed-system issues.
• Improve API performance, scalability, reliability, and observability.
• Build automated tests covering API behavior and integration scenarios.
• Participate in architecture discussions, code reviews, and engineering standards.

Skills

Python

Kafka

REST APIs

OAuth 2.0 / OIDC

JWT

Distributed architectures

FHIR

SQL / NoSQL

CI / CD

Observability

Tools

Docker

Cloud (AWS)

Job description

Intellias is seeking a Senior Interoperability Engineer to design and scale healthcare integrations for a Digital Health platform connecting providers, payers, clinical systems, and external networks.

The role is hands-on, focusing on Python, Kafka, high-scale REST/FHIR APIs, OAuth-based security, and cloud-native services, with responsibilities spanning architecture discussions, testing, and reliability improvements.