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Cody Ebberson

PROFILE

Cody Ebberson

Over a 16-month period, contributed extensively to the medplum/medplum repository, delivering features and fixes across backend, frontend, and DevOps domains. Developed and maintained core healthcare APIs, enhanced security and authentication workflows, and modernized the codebase with ES modules and robust CI/CD pipelines. Leveraged TypeScript, Node.js, and React to implement scalable data export, C-CDA interoperability, and advanced FHIR operations, while improving deployment automation and documentation. Addressed reliability and performance through asynchronous processing, database optimization, and comprehensive test coverage. The work emphasized maintainability, compliance, and user experience, supporting both cloud and self-hosted deployments in a regulated healthcare environment.

Overall Statistics

Feature vs Bugs

60%Features

Repository Contributions

393Total
Bugs
113
Commits
393
Features
168
Lines of code
263,340
Activity Months16

Your Network

46 people

Work History

April 2026

19 Commits • 5 Features

Apr 1, 2026

April 2026 (medplum/medplum): Delivered security hardening, API reliability, and data handling improvements. Focused on safer authentication, scalable data exports, and improved admin UX, translating to stronger protection, faster workflows, and better operational efficiency for healthcare providers.

March 2026

14 Commits • 8 Features

Mar 1, 2026

March 2026 (medplum/medplum) performance and delivery overview focusing on business value, security, and developer experience. Key features delivered: - Open Source Documentation: Time Zones and Timestamps docs (#8660) and Why Open Source page (#8676) — commits 6dc2211d9eec4d229730b910e93711044d9e948c; 847a5128479f819f499f56b4b58c4efe238d2f01 - Security & Access Control Enhancements: updated permissions, domain/redirect validation rules, and OAuth URI security hardening — commits b1a857c9e647d50d9f433510b1284867df2fea77; dbc73cfac9c9e2f203595e58b228500d835b905e; 7ae10035ddadde4dba7b18d3156553940465b3a1 - Authentication UI Refactor: modularization of authentication components for reuse — commit 9f2f6c614f58c30aa4c3735bbc847f16219559eb - SmartAppLaunch FHIR Context Enhancement: Added SmartAppLaunch.fhirContext for selective resource inclusion — commit 428cf240fa5cc6f00cead793a25a00cc7aba9750 - Marketplace Resources & Integration: definition resources for marketplace with migration support and initial tests — commit 2fabadfab184ad597433f86f0d97112487ef0259 - User Management: Invitations Auditability — commit a922c1119e8d882afd1b1eacfe97ba36a1a0fce6 - Performance & Data Update Improvements: asynchronous dispatch worker and patch operation improvements — commits a88103b63c57090960268a60568a917e5551ff44; 127de39c443f3e87b22ca722a2279fc37f06263e - Deployment Hygiene & Quality: streamlined deployment configuration and SonarQube focus — commits dbcac7bf3489be77a81fae85c1bbfbca76cc9aa3; 047fe141845737eeab006f620b1a99f3232d3714; 9e08947b48735f7245da49ea445c1f118181a57f Major bugs fixed: - Fixed medplum_test_readonly permissions on pg17 (#8719) — b1a857c9e647d50d9f433510b1284867df2fea77 - DomainConfiguration rules on external apps and URL validation security enhancements (#4365, #8673) — dbc73cfac9c9e2f203595e58b228500d835b905e - Disable redirect URL partial match (#8749) — 7ae10035ddadde4dba7b18d3156553940465b3a1 - Flaky HL7 client tests improvements (exponential backoff and retries) — 9e08947b48735f7245da49ea445c1f118181a57f Overall impact and accomplishments: - Strengthened security posture with stricter access controls, URL validation, and domain validation reducing risk and misconfigurations. - Clearer self-hosting guidance and licensing transparency for open source adoption. - Improved developer experience and system performance through modular authentication, asynchronous processing, and enhanced patch semantics. - Greater governance and accountability with invitations auditability and robust marketplace resource definitions. - Higher deployment reliability and code quality through focused deployment hygiene and CI improvements. Technologies/skills demonstrated: - TypeScript/React componentization and UI refactor - OAuth security, domain/URL validation, and FHIR context management - Async worker design and patch operation enhancements - Data migration, semver practices, and marketplace resource modeling - Testing stability, ESLint fixes, and CI/CD improvements

October 2025

18 Commits • 5 Features

Oct 1, 2025

October 2025 monthly summary for medplum/medplum focusing on feature delivery, quality improvements, and performance optimizations. The team delivered packaging and licensing improvements, codebase cleanups, and reliability enhancements, while also improving runtime performance and CI efficiency.

September 2025

51 Commits • 22 Features

Sep 1, 2025

September 2025 monthly summary for medplum/medplum focused on delivering high-value features, strengthening security, and improving developer experience, with a strong emphasis on performance and reliability. Highlights include brand-refresh assets, server-side bot integration, modernizing the codebase with ES modules, enhanced GraphQL pagination, and security/posture improvements across releases.

August 2025

23 Commits • 14 Features

Aug 1, 2025

August 2025 performance summary for medplum/medplum focused on delivering deployment and Kubernetes workflow improvements, enhancing data lifecycle visibility, and strengthening CI/CD reliability. The month combined feature delivery with reliability fixes and documentation/UX improvements that collectively improve speed, governance, and developer experience while expanding platform capabilities.

July 2025

41 Commits • 19 Features

Jul 1, 2025

July 2025: medplum/medplum delivered a focused set of frontend enhancements, security hardening, and DX improvements, underpinned by a broad set of reliability fixes and documentation updates. Notable features include a UI sidebar checkpoint, home page text refresh, and a logo prototype, complemented by a safer signing/key management flow, OIDC-based AWS credentials, and Helm chart reliability improvements. Code quality improvements included refactoring QuestionnaireForm to hooks and stabilizing QuestionnaireFormItem handling, alongside a TypeScript version lock and updates to Node.js requirements. The month also strengthened documentation with Disaster Recovery docs and OpenSSF Best Practices badge, and Docusaurus performance improvements, while several bug fixes improved correctness and governance.

June 2025

35 Commits • 19 Features

Jun 1, 2025

June 2025 – medplum/medplum monthly summary: Key features delivered include Security and OAuth enhancements (security policy updates, password-manager compatibility, OAuth RFC 7662 external authentication, OAuth updates for MCP, and local file system hardening), MCP server and FHIR capabilities (MCP server, MCP fhir-request header support, and custom FHIR operations with minor CapabilityStatement updates), UI/navigation and documentation refinements (move Community link to the footer; documentation sidebar update and docs on proxying binary content through medplum server), and developer tooling improvements (CLI wrapper for medplum tooling; CLI dependencies fix to ensure proper builds). Major bugs fixed comprise bot execution reliability with GCP storage, duplicate SMART well-known routes, build error fixes, JWT userinfo format handling, and fixed bot utils circular imports, along with merge conflict resolutions. Overall impact: security posture strengthened, interoperability and platform reliability improved, and developer productivity boosted through enhanced tooling, automation, and CI workflows. Technologies/skills demonstrated include OAuth 2.0 / external authentication and policy hardening, MCP server integration and FHIR-capable enhancements, CDK-based WAF logging for observability, cross-realm isError utility, and automation/CI workflow improvements (Fission bots, pre-commit bots, Claude Code GitHub workflow).

May 2025

24 Commits • 8 Features

May 1, 2025

May 2025 focused on stabilizing core user flows, hardening security, and expanding test coverage for medplum. Key outcomes include added error_description support for authorize error redirects, stability fixes for search filter dialogs, and fixes to critical webhook and provider scheduling logic. Deployment and developer experience improvements included Docker Compose cleanup and establishing testing infrastructure in medplum-provider. In addition, targeted feature/blog work and server config adjustments contributed to long-term reliability and documentation readiness.

April 2025

12 Commits • 7 Features

Apr 1, 2025

April 2025 focused on strengthening core platform reliability, performance, and developer experience in medplum/medplum. Delivered modular storage refactor with a central binary storage loader, clarified FHIRPath operator usage and corrected search parameter handling, enhanced scheduling UI/UX, added reply-to support for email, and extended unauthenticated webhook support for third-party integrations. Stabilized tests by handling null bytes in search strings and disabling risky PDF generation tests. These changes improve maintainability, test reliability, interoperability with external systems, and faster feature delivery.

March 2025

35 Commits • 9 Features

Mar 1, 2025

March 2025 performance summary for medplum/medplum. Delivered frontend modernization, data capability enhancements, and reliability improvements. Business value realized includes a more robust UX, improved CCDA interoperability, faster and safer CI/build processes, and safer runtime environments.

February 2025

39 Commits • 17 Features

Feb 1, 2025

February 2025 monthly performance summary for medplum/medplum focused on core data interoperability, patient data access, and platform reliability. Key outcomes include foundational C-CDA interoperability capabilities, expanded patient data access via a dedicated Patient Summary API and improved UI, and broader validation coverage to ensure safer data exchange. Reliability, caching, and build stability improvements reduced deployment risk and improved developer experience. Documentation and community outreach were strengthened to aid onboarding and adoption. Key achievements (business value oriented): - C-CDA capabilities: first draft library and export functionality with an Export tab, enabling standardized data interchange. Commits include 9c048d88c62e1eb1881b3fcb4f1355f5e62f6b5c and fcec76d4f32677b1b32ee91e6c0dc971cf41a683; stability fixes followed (#6003, #6004). - Patient Summary: first draft of Patient Summary operation, new MedplumClient.readPatientSummary API, and improved PatientSummary React component with resource-type limiting for focused data exposure. Commits include 0cfe4688cd02547d4c5d70190a89ecc0c8308817, 2b66e0afab320bed96358e89f2379c4f76e5f41c, ded0fdad5c4aa68aff82a21a6d98c143924f59bd, and 982fd228e4c9218b8587548ba4feab270f981133. - C-CDA Validator Coverage: expanded validator coverage across medications, problems/immunizations, vital signs, smoking status, procedures, lab orders/results, and devices (commits 8847df..., 15ef75..., b50365..., 1123a3..., 9d274c6..., 9a984f60...). - Reliability and performance: Docker/export stability fixes, server config circular dependency fixes, Turbo cache improvements, and build/test stabilization (commits 6c967f56..., 0d07d77e..., 9c19c4d3..., 98bca22b..., 7a0d5e72...). - Documentation and outreach: updated C-CDA readme, Medplum v4 blog post, and R5 docs USRSC announcements to improve onboarding and knowledge sharing (commits 3c8f924a..., 322b1c298f4c0fe2479c42372a724f3a807d8dca, 78f4ef8e99b32d4919a4630f239a99c5a717b1e6).

January 2025

27 Commits • 15 Features

Jan 1, 2025

January 2025 highlights focused on interoperability, security, and release reliability for medplum/medplum. Key API compatibility improvements with meta.medplum.com were completed, identity capabilities were strengthened through on-behalf-of JWT access token support, and publish automation was extended to accommodate external integrations (dosespot-react). Added GCP config loading tests to boost cloud deployment confidence, and delivered targeted quality fixes and maintenance work to reduce operational risk and improve developer experience. Overall, these efforts improved partner interoperability, security posture, and time-to-value for customers while enhancing code quality and maintainability.

December 2024

14 Commits • 6 Features

Dec 1, 2024

December 2024 focused on hardening packaging and deployment, UX improvements, documentation, and observability for medplum/medplum. The team delivered robust Debian packaging and deployment workflow enhancements, UI feature gating to align access with user project membership, a UI-driven overhaul of the search filter editor, and updated policy/docs. Enhancements to observability and data modeling support safer, scalable deployments and richer diagnostics, providing higher business value with quicker issue resolution and clearer governance.

November 2024

20 Commits • 3 Features

Nov 1, 2024

November 2024 monthly summary for medplum/medplum: Focused on stability, packaging automation, deployment enablement, and UI/documentation enhancements to improve reliability and business value. Key features and fixes include: OpenTelemetry instrumentation stability fixes to prevent crashes and handle parse errors; end-to-end Debian packaging workflow improvements with signing, publishing, and checksum handling; Ubuntu deployment with Nginx/SSL and GCP deployment docs; UI/form enhancements with header configurability and DoseSpot components; and ResearchStudy type cleanup removing a Citation reference. Impact: reduced operational risk from observability instability, streamlined release processes and packaging to faster time-to-value, and improved security posture with GPG/ACL improvements; Skills demonstrated: OpenTelemetry, Debian packaging, CI/CD, Ubuntu/GCP deployments, React components, and TypeScript data modeling.

October 2024

18 Commits • 10 Features

Oct 1, 2024

Month 2024-10 performance summary for medplum/medplum focused on strengthening data integrity, search reliability, privacy controls, and deployment resilience while advancing key product initiatives (ResearchStudy data model, DoseSpot integration, and UI/UX improvements). The team delivered a targeted set of bug fixes and feature enhancements that improve patient data accuracy, discoverability, and operational reliability, enabling safer data handling and faster feature rollouts across the platform. Key outcomes: - Data integrity and correctness: Resolved critical metadata propagation issues and ensured reliable notifications in the subscription workflow. - Search and data modeling: Improvements to reverse chained search handling and a comprehensive upgrade of ResearchStudy with R5 structure, new search params, and updated types to enable better categorization and discovery. - Privacy and identity controls: Introduced limited non-sensitive identifiers in auth/me responses and added a unique identifier field for ProjectMemberships to simplify referencing and auditing. - UI/UX and integration: Refined Questionnaire UI, added optional source parameter, and progressed DoseSpot integration for testing connectivity, patient search, data sync, and order management. - Reliability and maintenance: Implemented automatic retry for bot deployments on ResourceConflictException and removed CycloneDX, contributing to more robust release processes and lighter maintenance burden. - Operational improvements: Timing and compartment data improvements for validation and resource organization, plus supporting updates (careers page content and Ubuntu deployment docs) to keep the product and docs aligned with release goals.

September 2024

3 Commits • 1 Features

Sep 1, 2024

Month 2024-09: Focused on reliability, robustness, and onboarding experience for self-hosted deployments. Delivered targeted fixes to streaming and email flows, and streamlined self-hosting documentation to reduce configuration friction. These changes enhance stability, user feedback, and maintainability across core infra and deployment tooling.

Activity

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Quality Metrics

Correctness94.4%
Maintainability89.8%
Architecture90.4%
Performance89.2%
AI Usage74.4%

Skills & Technologies

Programming Languages

BashCSSDockerfileHTMLICOJSONJavaScriptMarkdownPythonSQL

Technical Skills

AI IntegrationAPI DevelopmentAPI designAPI developmentAPI integrationAPI securityAWSAWS CDKAWS LambdaAWS S3AWS SDKAWS servicesAlgoliaAutomationAzure

Repositories Contributed To

1 repo

Overview of all repositories you've contributed to across your timeline

medplum/medplum

Sep 2024 Apr 2026
16 Months active

Languages Used

JavaScriptMarkdownTypeScriptBashCSSSQLYAMLbash

Technical Skills

Expressbackend developmentdocumentationerror handlingtechnical writingtesting