Greg Tyler enhanced the ministryofjustice/opg-data-lpa and opg-lpa repositories by delivering robust backend features and process improvements over two months. He refactored Python unit tests for URL generation, replacing property-based tests with explicit cases to ensure deterministic, reliable validation of complex URL encoding. In PHP projects, Greg streamlined dependency management, established Renovate PR governance through Architecture Decision Records, and upgraded static analysis tooling using Psalm and PHPCS. He also addressed security by fixing CSRF validation in the admin service and aligned Node.js environments across deployment artifacts. His work demonstrated depth in backend development, code quality, and configuration management practices.