
David Wass contributed to the NHSDigital/nhs-notify-supplier-api and e-referrals-service-api repositories, focusing on robust API development and documentation. He expanded the OpenAPI Specification, introduced new endpoints, and enhanced sandbox environments to improve supplier onboarding and integration reliability. Using Node.js, YAML, and Docker, David implemented secure proxy deployments, mTLS authentication, and rate-limiting configurations, ensuring production-like fidelity and safer API consumption. He also aligned documentation with actual system capabilities, clarifying access modes and reducing support overhead. His work demonstrated depth in backend development, CI/CD automation, and security configuration, resulting in maintainable, well-documented APIs ready for scalable deployment.

October 2025: Delivered core NHS Notify Supplier API enhancements, rate-limiting governance, and documentation improvements. Focused on sandbox fidelity, reliable API behavior, and maintainability to drive safer integration and faster feature delivery.
October 2025: Delivered core NHS Notify Supplier API enhancements, rate-limiting governance, and documentation improvements. Focused on sandbox fidelity, reliable API behavior, and maintainability to drive safer integration and faster feature delivery.
August 2025 monthly summary for NHSDigital/nhs-notify-supplier-api. Focused on expanding the OpenAPI surface, stabilizing the proxy pipeline, and strengthening security to support faster supplier onboarding and more reliable deployments. Delivered production-like API surface with sandbox readiness, plus CI/CD reliability improvements and groundwork for supplier-id header usage.
August 2025 monthly summary for NHSDigital/nhs-notify-supplier-api. Focused on expanding the OpenAPI surface, stabilizing the proxy pipeline, and strengthening security to support faster supplier onboarding and more reliable deployments. Delivered production-like API surface with sandbox readiness, plus CI/CD reliability improvements and groundwork for supplier-id header usage.
December 2024: Documentation-focused improvement for NHSDigital/e-referrals-service-api, specifically the ERSSUP endpoints A028/A029. Reverted prior ERSSUP-80895 changes and updated the OAS to clearly indicate read-only mode, removing references to unattended write access. This aligns documentation with actual capabilities, strengthens security posture, and improves release readiness.
December 2024: Documentation-focused improvement for NHSDigital/e-referrals-service-api, specifically the ERSSUP endpoints A028/A029. Reverted prior ERSSUP-80895 changes and updated the OAS to clearly indicate read-only mode, removing references to unattended write access. This aligns documentation with actual capabilities, strengthens security posture, and improves release readiness.
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