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David Middleton

PROFILE

David Middleton

Over six months, contributed to DEFRA/grants-ui and DEFRA/land-grants-api by building authentication-enabled grant application flows, implementing feature flags, and enhancing error handling and test coverage. Delivered Liquibase-based database migrations and Docker Compose integration to support robust schema management, while also improving local development with Docker-centric workflows and AWS S3 credential support. Enhanced CI/CD pipelines using GitHub Actions for seeded database deployments, and streamlined data ingestion with Node.js tooling and dedicated Dockerfile stages. Work focused on backend and full stack development, leveraging JavaScript, YAML, and Docker to improve reliability, maintainability, and deployment consistency across multiple environments and workflows.

Overall Statistics

Feature vs Bugs

85%Features

Repository Contributions

30Total
Bugs
2
Commits
30
Features
11
Lines of code
7,147
Activity Months6

Work History

January 2026

1 Commits • 1 Features

Jan 1, 2026

January 2026 (2026-01) monthly summary for DEFRA/land-grants-api focused on delivering a data ingestion seed enhancement via a new Dockerfile stage. The release improves seed data provisioning with Node.js tooling and a dedicated ingest script, enabling consistent test data across environments and accelerating QA and deployment workflows.

December 2025

3 Commits • 1 Features

Dec 1, 2025

Month: 2025-12 | This period delivered significant CI/CD improvements for seeded database deployment in DEFRA/land-grants-api. Focus areas included AWS region/config, manual trigger support, and Docker build context adjustments, enabling more reliable, repeatable environments and faster deployments. Technologies demonstrated include GitHub Actions CI/CD, AWS, and Docker-based workflows.

November 2025

5 Commits • 2 Features

Nov 1, 2025

Monthly summary for 2025-11 focused on delivering a resilient dev experience and test reliability for DEFRA/land-grants-api. Key features delivered include a Docker-centric development and migration workflow overhaul and enhanced local/test AWS S3 credentials support with updated test configurations. Major fixes addressed docker-compose usage and test setup to stabilize local development and CI tests, enabling more reliable migrations. Overall, this work improves deployment reliability, accelerates onboarding, and reduces friction for end-to-end testing and migrations.

October 2025

1 Commits • 1 Features

Oct 1, 2025

October 2025 monthly summary for DEFRA/land-grants-api: Key feature delivered was Liquibase-based database migrations for Grants-UI with Docker Compose integration, establishing a robust, reversible schema migration mechanism across environments. New migration scripts were added and Docker Compose configurations updated to enable seamless updates, rollbacks, and consistent schema changes. This work creates a scalable foundation for future migrations and aligns with deployment automation goals.

August 2025

6 Commits • 2 Features

Aug 1, 2025

DEFRA/grants-ui — August 2025: Delivered authentication and access-control enhancements, YAML schema alignment, and userId standardization; fixed consistency bug across credentials; improved logging, tests, and form rendering. Result: stronger security, improved reliability, and faster onboarding for future changes.

July 2025

14 Commits • 4 Features

Jul 1, 2025

July 2025 performance summary for the DEFRA/grants-ui initiative. Delivered a feature-rich authentication-enabled grant application flow, introduced a Defra ID feature flag with flow refinements, improved error handling and test coverage, and performed essential dependency maintenance. Reverted a breaking update in the forms engine plugin to restore stability. The work enhanced user experience, reduced production risk, and strengthened code quality and maintainability across the grants UI.

Activity

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Quality Metrics

Correctness86.4%
Maintainability87.6%
Architecture82.6%
Performance80.0%
AI Usage21.4%

Skills & Technologies

Programming Languages

CSSDockerfileHTMLJSONJavaScriptShellTypeScriptYAMLjavascriptyaml

Technical Skills

API developmentAWSAuthenticationBackend DevelopmentBackend developmentCI/CDConfiguration ManagementContinuous IntegrationDatabase ManagementDependency ManagementDevOpsDockerError HandlingForm DesignFront End Development

Repositories Contributed To

2 repos

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

DEFRA/grants-ui

Jul 2025 Aug 2025
2 Months active

Languages Used

CSSHTMLJavaScriptTypeScriptYAMLjavascriptyaml

Technical Skills

AuthenticationBackend DevelopmentBackend developmentConfiguration ManagementDependency ManagementError Handling

DEFRA/land-grants-api

Oct 2025 Jan 2026
4 Months active

Languages Used

JavaScriptShellYAMLJSONDockerfile

Technical Skills

Database ManagementDevOpsDockerLiquibaseAPI developmentNPM Scripts