Interoperability Lead Developer

Are you passionate about interoperability, information models, and API design? With us, you will take a key role in the movement that is making Karolinska more information-centric and prepared for the healthcare of the future.

You will work closely with our platform and informatics teams and drive how data is structured, shared, and used in an ecosystem where research, clinical operations, and innovation meet. Your work becomes part of the foundation enabling healthcare IT to keep pace with medical progress.

Karolinska is in the midst of one of the largest perspective shifts in Swedish healthcare IT. We are moving from a system landscape where applications are trapped in their own data silos to a model where information is central. Open standards, clear informal and formal information models, and robust APIs are the keys that let data flow, be reused, and drive development without being locked into individual systems. As Interoperability Lead Developer you have a central role in shaping this direction. You lead the development of standardized APIs and build the semantic and technical prerequisites required for healthcare data flows to become long-term sustainable, testable, and easy to extend.

Purpose

Create conditions for semantic and technical interoperability through clear domain modelling, API governance, and event-driven architecture, with openEHR and FHIR as core building blocks. Contribute to a long-term sustainable architecture and software design that makes healthcare more adaptive, more data-driven, and better equipped for the pace of medical advancement.

Main Responsibilities

• Together with our informatics team, model information structures with openEHR and FHIR and lead versioning
• Define and steward APIs, contracts, guidelines, and lifecycle
• Design and build robust backend services
• Establish event-driven integrations using Kafka or equivalent
• Map and convert between openEHR and FHIR and other formats
• Support teams in architectural work and formulate architectural decisions
• Ensure non-functional requirements: performance, security, resilience/recoverability

Requirements

Mandatory Requirements:

• Minimum 5 years of backend development experience in complex environments, of which at least 3 years in a leading technical role (architect, tech lead, or equivalent)
• Documented experience designing, governing, and versioning APIs in larger organizations, including contract management, API governance, and standardized interfaces
• Solid data modelling experience, including version management of information models and modelling domain objects in both JSON and relational structures
• Ability to lead technical decisions and translate domain requirements into architecture and concrete design patterns, in dialogue with both developers and informaticians.

Highly Meritorious:

• Knowledge of or experience with IT in Swedish healthcare, including patient-data related legislation such as PDL & SVOD
• Experience communicating with informaticians/data modellers, developers, and end users (preferably in healthcare)
• Experience working with standards and terminology systems (e.g. SNOMED CT, ICD)
• Experience with Kafka or similar streaming platform / queue / message bus in production
• Hands-on production experience with openEHR or FHIR

About the recruitment process

Selection and interviews may take place on an ongoing basis during the application period.

When submitting your application, please attach your CV. Instead of a cover letter, we ask you to answer the selection questions and briefly explain why you are a good fit for the role. Answering these questions is a requirement for your application to be considered complete.

We warmly welcome your application – Together, we are Karolinska!

Before filling a position that involves care of children and adolescents, the person offered the position will be checked against the suspicion and criminal records. Read more here (https://www.karolinska.se/jobba-hos-oss/rekrytering-pa-karolinska/).

As an employee at Karolinska University Hospital, you may be placed in a war position. Read more here (https://www.karolinska.se/jobba-hos-oss/var-arbetsplats/totalforsvarsplikt-allman-tjansteplikt-och-krigsplaceringar-pa-karolinska-universitetssjukhuset/).

If you are or have previously been employed by Region Stockholm, we will take internal references from your current or previous manager if you become a candidate for employment.

For permanent positions, a probationary period may apply.

About Karolinska University Hospital

At Karolinska University Hospital, we are proud to be one of the world's leading university hospitals. In addition to our special responsibility for highly specialized care in the Stockholm region, our main mission is to educate the healthcare professionals of the future together with Karolinska Institute and conduct world-leading research while continuing our work to develop care for the best of the patient. We work across a range of areas and professions.

Our vision - We will cure and alleviate tomorrow what no one can cure and alleviate today.

Feel free to read more about us at Karolinska (https://www.karolinska.se/) and follow us on social media!

Applying for a job in Region Stockholm

We strive for gender equality and equity in our workplace and welcome applicants with diverse backgrounds and circumstances.

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Region Stockholm is responsible for healthcare, public transport, regional development, and contributes to cultural life. Every day, around the clock. In the country's fastest-growing region. Together we create Europe's most attractive metropolitan region.

Read more here (https://www.regionstockholm.se/jobb).