microsoft/fhir-server
Nov 2024 – Oct 2025
5 Months active
Languages Used
csymlC#YAMLHTTP
Technical Skills
CI/CDDockerFHIRUnit TestingBackend DevelopmentSDK Integration
Jared Erwin
PROFILE
Jared Erwin
Jaerwin contributed to the microsoft/fhir-server repository by developing and enhancing core features for healthcare data workflows, focusing on FHIR server extensibility, security, and data integrity. Over five months, Jaerwin delivered fine-grained SMART v2 authorization scopes, expanded ValueSet validation, and improved search parameter management, using C#, Docker, and Cosmos DB. Their work included upgrading SDKs, refining CI/CD pipelines, and integrating OpenIddict for robust OAuth 2.0 support. By addressing both feature delivery and critical bug fixes, Jaerwin ensured scalable validation, reliable access control, and consistent resource indexing, demonstrating a strong grasp of backend development and healthcare interoperability standards.
Overall Statistics
Feature vs Bugs
67%Features
Repository Contributions
6Total
Bugs
2
Commits
6
Features
4
Lines of code
11,873
Activity Months5
Your Network
4179 people
Work History
October 2025
1 Commits • 1 Features
Oct 1, 2025October 2025: Delivered fine-grained SMART v2 scopes for FHIR authorization in microsoft/fhir-server, enabling per-resource access control with parameterized scopes. Implemented across the OpenIddict server, core FHIR services, and Cosmos DB integration to enforce new scope formats and access policies. This feature, backed by commit 22c2a262006e5065de684f6639b60628ec8c8423 ("Add support for SMART v2 cruds scopes (#5096)"), strengthens security and regulatory alignment while enabling customers to tailor data access more precisely. There were no major bug fixes reported this period; the focus was on feature delivery and infrastructure updates. Overall impact includes improved data security, policy-driven access, and a solid foundation for future CRUD-level scope extensions. Technologies demonstrated include OpenIddict, SMART v2 scopes, FHIR server components, and Cosmos DB policy enforcement, reflecting strengths in authentication/authorization design and scalable access control.
1 Commits • 1 Features
Oct 1, 2025October 2025: Delivered fine-grained SMART v2 scopes for FHIR authorization in microsoft/fhir-server, enabling per-resource access control with parameterized scopes. Implemented across the OpenIddict server, core FHIR services, and Cosmos DB integration to enforce new scope formats and access policies. This feature, backed by commit 22c2a262006e5065de684f6639b60628ec8c8423 ("Add support for SMART v2 cruds scopes (#5096)"), strengthens security and regulatory alignment while enabling customers to tailor data access more precisely. There were no major bug fixes reported this period; the focus was on feature delivery and infrastructure updates. Overall impact includes improved data security, policy-driven access, and a solid foundation for future CRUD-level scope extensions. Technologies demonstrated include OpenIddict, SMART v2 scopes, FHIR server components, and Cosmos DB policy enforcement, reflecting strengths in authentication/authorization design and scalable access control.
October 2025
April 2025
1 Commits
Apr 1, 2025April 2025: Monthly work summary for microsoft/fhir-server focusing on search parameter lifecycle consistency across derived resource types. Addressed a critical bug where search parameters were not removed from all applicable derived resource types; introduced GetDerivedResourceTypes to identify all derived resource types and ensure consistent search parameter management. The change improves data integrity and search accuracy across the server, reduces stale search parameter configurations, and strengthens maintainability by centralizing derived-type awareness.
April 2025
1 Commits
Apr 1, 2025April 2025: Monthly work summary for microsoft/fhir-server focusing on search parameter lifecycle consistency across derived resource types. Addressed a critical bug where search parameters were not removed from all applicable derived resource types; introduced GetDerivedResourceTypes to identify all derived resource types and ensure consistent search parameter management. The change improves data integrity and search accuracy across the server, reduces stale search parameter configurations, and strengthens maintainability by centralizing derived-type awareness.
March 2025
2 Commits • 1 Features
Mar 1, 2025March 2025 — microsoft/fhir-server: Enhanced value-set handling and data integrity, delivering scalable validation improvements and robust safeguards. Key changes include increasing ValueSet expansion capacity and integrating LocalTerminologyService into the validator, plus a guard against updates to deleted search parameters. These changes improve reliability under high-volume vocabularies, reduce risk of data corruption, and lay groundwork for future scaling.
2 Commits • 1 Features
Mar 1, 2025March 2025 — microsoft/fhir-server: Enhanced value-set handling and data integrity, delivering scalable validation improvements and robust safeguards. Key changes include increasing ValueSet expansion capacity and integrating LocalTerminologyService into the validator, plus a guard against updates to deleted search parameters. These changes improve reliability under high-volume vocabularies, reduce risk of data corruption, and lay groundwork for future scaling.
March 2025
February 2025
1 Commits • 1 Features
Feb 1, 2025February 2025: Completed a targeted feature upgrade and test expansion for microsoft/fhir-server. Upgraded Firely SDK to 5.11.3 and configured the build to target .NET 8.0 on Linux, paired with expanded end-to-end tests to include binary resources. Updated CI pipelines and project configurations to reflect the upgrade, improving release readiness and test reliability. No major bugs fixed this month; emphasis was on feature delivery and test infrastructure.
February 2025
1 Commits • 1 Features
Feb 1, 2025February 2025: Completed a targeted feature upgrade and test expansion for microsoft/fhir-server. Upgraded Firely SDK to 5.11.3 and configured the build to target .NET 8.0 on Linux, paired with expanded end-to-end tests to include binary resources. Updated CI pipelines and project configurations to reflect the upgrade, improving release readiness and test reliability. No major bugs fixed this month; emphasis was on feature delivery and test infrastructure.
November 2024
1 Commits • 1 Features
Nov 1, 2024November 2024: Delivered the Search Parameter Status Management feature for microsoft/fhir-server, introducing a new _source search parameter and aligning its status with parameter reporting. This enhances initialization, tracking, and visibility of search parameters, enabling better governance, reliability, and downstream query behavior for healthcare data workflows. Ancillary CI/CD work included temporarily removing the Trivy security scan due to external request issues and updating the Docker build to use a specific buildx image to improve CI/CD reliability. A representative change includes the commit 6525a6dfc391f4f3eba354b2d3910a7622b6a6cd with message "Update load of search param status on initialization (#4711)".
1 Commits • 1 Features
Nov 1, 2024November 2024: Delivered the Search Parameter Status Management feature for microsoft/fhir-server, introducing a new _source search parameter and aligning its status with parameter reporting. This enhances initialization, tracking, and visibility of search parameters, enabling better governance, reliability, and downstream query behavior for healthcare data workflows. Ancillary CI/CD work included temporarily removing the Trivy security scan due to external request issues and updating the Docker build to use a specific buildx image to improve CI/CD reliability. A representative change includes the commit 6525a6dfc391f4f3eba354b2d3910a7622b6a6cd with message "Update load of search param status on initialization (#4711)".
November 2024
Activity
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Quality Metrics
Correctness81.6%
Maintainability83.4%
Architecture80.0%
Performance70.0%
AI Usage26.6%
Skills & Technologies
Programming Languages
C#HTTPYAMLcsyml
Technical Skills
API DevelopmentAPI SecurityAuthorizationBackend DevelopmentCI/CDCosmos DBDockerFHIRIntegration TestingOAuth 2.0OpenIddictSDK IntegrationSMART on FHIRTestingUnit Testing
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline