
Julian Young developed and enhanced core data-access and backend features for DEFRA/epr-common-data-api, focusing on regulatory reporting, registration workflows, and data integrity. He implemented robust SQL stored procedures, optimized data retrieval and synchronization, and standardized naming conventions to improve maintainability and CI/CD reliability. Leveraging C#, SQL, and ASP.NET Core, Julian delivered features such as late fee calculation logic, POM resubmission synchronization, and performance improvements for regulator UI data paths. His work addressed business needs for accurate compliance reporting and reliable data processing, demonstrating depth in database development, backend integration, and test-driven refactoring across complex, evolving regulatory systems.

December 2025 (DEFRA/epr-common-data-api): Implemented naming standardization for critical data access views to improve maintainability and CI/CD reliability. Renamed the SQL view v_fetch-organisation-registration-details-resub to sp_fetch-organisation-registration-details-resub to align with main branch conventions, ensuring consistency across Main, RC16.1, and the recyclers pipeline.
December 2025 (DEFRA/epr-common-data-api): Implemented naming standardization for critical data access views to improve maintainability and CI/CD reliability. Renamed the SQL view v_fetch-organisation-registration-details-resub to sp_fetch-organisation-registration-details-resub to align with main branch conventions, ensuring consistency across Main, RC16.1, and the recyclers pipeline.
November 2025 monthly summary for DEFRA/epr-common-data-api: Implemented key data-management and UI-performance features across POM resubmission tracking and regulator data retrieval. Delivered POM Resubmission Data Management with membercount tracking and event logging, plus Regulator UI and Submissions Performance improvements with a new flag, new views, and optimized procedures. Strengthened testing to ensure critical tables exist and overall data integrity. These changes reduce data latency, improve reporting accuracy, and support compliance oversight. Technologies involved include SQL entities, stored procedures, scripts, and UI performance tuning.
November 2025 monthly summary for DEFRA/epr-common-data-api: Implemented key data-management and UI-performance features across POM resubmission tracking and regulator data retrieval. Delivered POM Resubmission Data Management with membercount tracking and event logging, plus Regulator UI and Submissions Performance improvements with a new flag, new views, and optimized procedures. Strengthened testing to ensure critical tables exist and overall data integrity. These changes reduce data latency, improve reporting accuracy, and support compliance oversight. Technologies involved include SQL entities, stored procedures, scripts, and UI performance tuning.
2025-10 Monthly summary for DEFRA/epr-common-data-api: Implemented data distribution and performance enhancements for the Reporting data path, delivering faster access to registration fee details and ensuring data correctness across OrgRegistrationsSummaries. Demonstrated clean integration of optimization work into existing stored procedures and validation processes.
2025-10 Monthly summary for DEFRA/epr-common-data-api: Implemented data distribution and performance enhancements for the Reporting data path, delivering faster access to registration fee details and ensuring data correctness across OrgRegistrationsSummaries. Demonstrated clean integration of optimization work into existing stored procedures and validation processes.
September 2025 – DEFRA/epr-common-data-api: Delivered two major feature enhancements to improve registration workflows. (1) Registration Fee Calculation Enhancements with late resubmission handling and performance/readability optimizations; (2) Data Integrity and Synchronization for Organization Registrations via a MERGE-based approach to OrgRegistrationsSummaries to preserve existing records while updating/inserting new ones. These changes are anchored by commits f25675c5b93bbaf7eed3e6d17a23095952226fe9 (sp_FetchOrganisationRegistrationSubmissionDetails_resub) and e32731d2591910aeb90146e042e8718019238f94 (Apply optimisations to sp_GetRegistrationFeeCalculationDetails) for the first feature, and 8d080fc7ce421e4b2196d7def134457ae96e8ed1 (Update sp_MergeSubmissionsSummaries to merge into OrgRegSummaries and not truncate OrgRegSummaries) for the second.
September 2025 – DEFRA/epr-common-data-api: Delivered two major feature enhancements to improve registration workflows. (1) Registration Fee Calculation Enhancements with late resubmission handling and performance/readability optimizations; (2) Data Integrity and Synchronization for Organization Registrations via a MERGE-based approach to OrgRegistrationsSummaries to preserve existing records while updating/inserting new ones. These changes are anchored by commits f25675c5b93bbaf7eed3e6d17a23095952226fe9 (sp_FetchOrganisationRegistrationSubmissionDetails_resub) and e32731d2591910aeb90146e042e8718019238f94 (Apply optimisations to sp_GetRegistrationFeeCalculationDetails) for the first feature, and 8d080fc7ce421e4b2196d7def134457ae96e8ed1 (Update sp_MergeSubmissionsSummaries to merge into OrgRegSummaries and not truncate OrgRegSummaries) for the second.
DEFRA/epr-common-data-api – 2025-08: Delivered two major features to improve data correctness, consistency, and reporting of late fees and subsidiary counts. Centralized cutoff date logic in SQL (stored procedures and views), aligned submission dates for IsLateSubmission, and updated subsidiary counts to reflect new rules. These changes improve accuracy of late fee eligibility, CS-member reporting, and downstream reporting for subsidiaries, while enabling easier future rule changes.
DEFRA/epr-common-data-api – 2025-08: Delivered two major features to improve data correctness, consistency, and reporting of late fees and subsidiary counts. Centralized cutoff date logic in SQL (stored procedures and views), aligned submission dates for IsLateSubmission, and updated subsidiary counts to reflect new rules. These changes improve accuracy of late fee eligibility, CS-member reporting, and downstream reporting for subsidiaries, while enabling easier future rule changes.
Summary for 2025-07: Delivered critical POM resubmission improvements in DEFRA/epr-common-data-api, introducing a new is_pom_resubmission_synchronised endpoint with supporting stored procedure to verify packaging resubmission references and refined SubmissionsController logging to improve traceability of POM resubmission operations. Also removed duplicated code paths, reducing maintenance burden and potential regressions. Result: more reliable packaging resubmission workflows, enhanced auditability, and clearer business value through reduced errors and faster troubleshooting.
Summary for 2025-07: Delivered critical POM resubmission improvements in DEFRA/epr-common-data-api, introducing a new is_pom_resubmission_synchronised endpoint with supporting stored procedure to verify packaging resubmission references and refined SubmissionsController logging to improve traceability of POM resubmission operations. Also removed duplicated code paths, reducing maintenance burden and potential regressions. Result: more reliable packaging resubmission workflows, enhanced auditability, and clearer business value through reduced errors and faster troubleshooting.
May 2025 monthly summary for DEFRA/epr-regulator-service. Focused on stabilizing offline payment flows and strengthening session management to prevent data loss across multi-tab scenarios. Delivered a robust backend refactor and updated tests, resulting in more reliable user experience for offline payments and mixed-tab workflows.
May 2025 monthly summary for DEFRA/epr-regulator-service. Focused on stabilizing offline payment flows and strengthening session management to prevent data loss across multi-tab scenarios. Delivered a robust backend refactor and updated tests, resulting in more reliable user experience for offline payments and mixed-tab workflows.
April 2025: DEFRA/epr-common-data-api delivered targeted improvements to the resubmission workflow and stabilized year-based organization summaries, delivering business value through improved data quality and processing reliability. Key outcomes: 1) Resubmission enhancements: renamed objects from _r9 to _resub, updated late-fee calculations and data filtering, and added SQL routines to retrieve uploaded organization details to enrich resubmission processing (commit 55df3776cf4237d39f59fc85defceee7b44fdffa). 2) Bug fix for organization summaries: corrected the relevantyear filter logic in the stored procedure used for filtering and paginating organization registrations, removing unnecessary concatenation and ensuring accurate filtering by provided submission years (commit 5d3052ef95d7be129d2f57885fd8c12f44f70b63). 3) Impact and skills: improved data integrity, reduced processing errors in resubmission workflows, and demonstrated strong SQL/stored procedures capabilities, with a focus on maintainability and business-facing outcomes.
April 2025: DEFRA/epr-common-data-api delivered targeted improvements to the resubmission workflow and stabilized year-based organization summaries, delivering business value through improved data quality and processing reliability. Key outcomes: 1) Resubmission enhancements: renamed objects from _r9 to _resub, updated late-fee calculations and data filtering, and added SQL routines to retrieve uploaded organization details to enrich resubmission processing (commit 55df3776cf4237d39f59fc85defceee7b44fdffa). 2) Bug fix for organization summaries: corrected the relevantyear filter logic in the stored procedure used for filtering and paginating organization registrations, removing unnecessary concatenation and ensuring accurate filtering by provided submission years (commit 5d3052ef95d7be129d2f57885fd8c12f44f70b63). 3) Impact and skills: improved data integrity, reduced processing errors in resubmission workflows, and demonstrated strong SQL/stored procedures capabilities, with a focus on maintainability and business-facing outcomes.
March 2025 focused on delivering a core data-access improvement for DEFRA/epr-common-data-api and aligning pipeline practices, with measurable enhancements in data retrieval and consistency across related views.
March 2025 focused on delivering a core data-access improvement for DEFRA/epr-common-data-api and aligning pipeline practices, with measurable enhancements in data retrieval and consistency across related views.
January 2025 monthly summary for DEFRA/epr-common-data-api focusing on delivering regulatory reporting enhancements and stabilizing data integrity across compliance and payment views.
January 2025 monthly summary for DEFRA/epr-common-data-api focusing on delivering regulatory reporting enhancements and stabilizing data integrity across compliance and payment views.
December 2024: Delivered core data-access enhancements and robust data integration across two DEFRA services, enabling reliable organization registrations and CSO member detail retrieval, backed by strengthened tests and SQL changes. These efforts improve data integrity, regulatory compliance visibility, and developer velocity.
December 2024: Delivered core data-access enhancements and robust data integration across two DEFRA services, enabling reliable organization registrations and CSO member detail retrieval, backed by strengthened tests and SQL changes. These efforts improve data integrity, regulatory compliance visibility, and developer velocity.
Month 2024-11: Focused on expanding testing capabilities for DEFRA/epr-regulator-service-facade by enriching registration submission test data, refining test data formats, and automating QA-related email workflows, enabling broader test coverage and faster validation prior to release.
Month 2024-11: Focused on expanding testing capabilities for DEFRA/epr-regulator-service-facade by enriching registration submission test data, refining test data formats, and automating QA-related email workflows, enabling broader test coverage and faster validation prior to release.
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