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David Wass

PROFILE

David Wass

David Wass developed and enhanced the NHSDigital/nhs-notify-supplier-api over seven months, delivering features that improved API reliability, security, and observability. He expanded the OpenAPI specification, implemented event-driven pipelines using AWS Kinesis and SNS, and introduced scalable event audit infrastructure with Firehose, Glue, and S3. David refactored authorization and error handling, automated documentation workflows, and enforced code quality through TypeScript linting and CI integration. His work included Terraform-based infrastructure as code, environment-specific security, and sandbox environments, resulting in maintainable, production-ready APIs. Throughout, he demonstrated depth in backend development, DevOps, and API design, addressing integration, monitoring, and governance challenges.

Overall Statistics

Feature vs Bugs

88%Features

Repository Contributions

25Total
Bugs
2
Commits
25
Features
15
Lines of code
57,705
Activity Months7

Work History

February 2026

1 Commits • 1 Features

Feb 1, 2026

February 2026 (Month: 2026-02) focused on delivering scalable, observable event audit capabilities for NHSDigital/nhs-notify-supplier-api. Implemented end-to-end event audit pipeline with Firehose, Glue integration, and S3 caching for events; established IAM roles/policies for Glue integration; introduced Terraform configurations for enhanced event handling and reporting infrastructure. This work enhances data observability, governance, and reporting, while laying groundwork for secure, scalable analytics across the supplier API.

January 2026

2 Commits • 2 Features

Jan 1, 2026

January 2026 monthly summary for NHSDigital/nhs-notify-supplier-api. This period focused on strengthening code quality and expanding the event-driven MI updates pipeline. Key features delivered include linting/type-checking enforcements and the MI Updates Transformer: Kinesis to SNS. No major bugs fixed this month. Impact includes improved maintainability, faster PR reviews, and more reliable MI updates; technologies demonstrated include ESLint/type-checking, GitHub Actions CI, AWS Kinesis and SNS, and refactoring for type safety.

December 2025

2 Commits • 1 Features

Dec 1, 2025

Concise monthly summary for 2025-12 focused on NHSDigital/nhs-notify-supplier-api work, highlighting delivered features, fixed bugs, impact, and technical skills demonstrated. Emphasizes business value and concrete deliverables.

November 2025

5 Commits • 4 Features

Nov 1, 2025

November 2025: Delivered key enhancements to the NHS Notify Supplier API, including status management improvements, JWT-based authentication tooling, documentation automation, and environment configuration updates. The changes improve API reliability, security, and onboarding efficiency for partner integrations, while reducing operational risk and maintenance overhead.

October 2025

4 Commits • 3 Features

Oct 1, 2025

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

10 Commits • 3 Features

Aug 1, 2025

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

1 Commits • 1 Features

Dec 1, 2024

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.

Activity

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Quality Metrics

Correctness87.2%
Maintainability85.6%
Architecture85.6%
Performance77.6%
AI Usage24.0%

Skills & Technologies

Programming Languages

BashDockerfileJSONJavaScriptMakefileMarkdownPythonShellTerraformTypeScript

Technical Skills

API DesignAPI DevelopmentAPI DocumentationAPI GatewayAPI Gateway ConfigurationAPI SecurityAWSAWS LambdaBackend DevelopmentCI/CDConfiguration ManagementDevOpsDockerDocumentationEnvironment Configuration

Repositories Contributed To

2 repos

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

NHSDigital/nhs-notify-supplier-api

Aug 2025 Feb 2026
6 Months active

Languages Used

BashDockerfileJSONJavaScriptMakefileShellYAMLbash

Technical Skills

API DesignAPI DevelopmentAPI GatewayAPI Gateway ConfigurationAPI SecurityAWS Lambda

NHSDigital/e-referrals-service-api

Dec 2024 Dec 2024
1 Month active

Languages Used

YAML

Technical Skills

API DocumentationOpenAPI Specification