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Thomas Leese

PROFILE

Thomas Leese

Worked on the NHSDigital/manage-vaccinations-in-schools-testing repository, focusing on stabilizing and modernizing the test infrastructure to support safer and faster software delivery. Over two months, delivered 55 features and resolved 13 bugs by refactoring the codebase, upgrading CI/CD workflows, and enhancing test reliability with parallelized execution and Allure-based reporting. Leveraged Python, Pytest, and Playwright to implement robust authentication fixtures, realistic test data generation, and improved environment management. Strengthened repository governance with CODEOWNERS and streamlined documentation. The work emphasized maintainability, security, and efficient test automation, resulting in a cleaner, more reliable backend and end-to-end testing framework.

Overall Statistics

Feature vs Bugs

81%Features

Repository Contributions

161Total
Bugs
13
Commits
161
Features
55
Lines of code
42,435
Activity Months2

Work History

June 2025

27 Commits • 19 Features

Jun 1, 2025

June 2025 monthly summary for NHSDigital/manage-vaccinations-in-schools-testing focused on delivering reliable test infrastructure, expanding end-to-end flows, and strengthening repo governance to drive faster feedback and safer releases. Key work spanned test reporting improvements, CI stability, realistic test data, redesigned flow validation, and UI/content alignment, all while maintaining a cleaner, maintainable codebase.

May 2025

134 Commits • 36 Features

May 1, 2025

May 2025 monthly summary for NHSDigital/manage-vaccinations-in-schools-testing. The month focused on stabilizing and modernizing the repository to accelerate safe software delivery, strengthen security, and improve test reliability and performance. Key work spanned CI/CD cleanup, tooling upgrades, code modernization, and a comprehensive test infrastructure overhaul, with security hardening and improved documentation.

Activity

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Quality Metrics

Correctness93.2%
Maintainability93.8%
Architecture91.0%
Performance89.2%
AI Usage20.4%

Skills & Technologies

Programming Languages

BashCSVGitGit IgnoreHTMLINIJSONJavaJavaScriptMarkdown

Technical Skills

API IntegrationAllureAutomationBackend DevelopmentBug FixingCI/CDCI/CD configurationCSV ParsingCode FormattingCode OptimizationCode OrganizationCode QualityCode Quality ImprovementCode RefactoringCode Review Automation

Repositories Contributed To

1 repo

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

NHSDigital/manage-vaccinations-in-schools-testing

May 2025 Jun 2025
2 Months active

Languages Used

BashCSVGitGit IgnoreINIJavaScriptMarkdownPytest

Technical Skills

API IntegrationAllureBackend DevelopmentBug FixingCI/CDCI/CD configuration