
Over a twelve-month period, contributed to the NHSDigital/manage-vaccinations-in-schools-testing repository by designing and evolving a comprehensive performance testing framework for vaccination workflows. The work focused on building robust end-to-end and load testing pipelines using JMeter, Groovy scripting, and YAML-driven CI/CD automation. Delivered features such as dynamic session pagination, large-organization test scenarios, and data management validation, while addressing reliability through targeted bug fixes and configuration improvements. Enhanced test data extraction, session handling, and observability, supporting scalable deployment and rapid feedback. The approach emphasized maintainability, documentation alignment, and efficient test automation, resulting in a stable, extensible platform for ongoing validation.
Month: 2026-04 — Key accomplishments in NHSDigital/manage-vaccinations-in-schools-testing focused on performance test data retrieval and reliability improvements. Implemented gias_school-based data lookups in performance tests, and applied a bug fix to ensure correct data source usage as per MAV-5556. These changes improve data accuracy, test reliability, and CI feedback loops.
Month: 2026-04 — Key accomplishments in NHSDigital/manage-vaccinations-in-schools-testing focused on performance test data retrieval and reliability improvements. Implemented gias_school-based data lookups in performance tests, and applied a bug fix to ensure correct data source usage as per MAV-5556. These changes improve data accuracy, test reliability, and CI feedback loops.
March 2026 summary for NHSDigital/manage-vaccinations-in-schools-testing: Focused on reliability, coverage, and efficiency of the performance testing framework and test configurations to support vaccination workflow validation. Delivered targeted fixes and enhancements that improved data extraction accuracy, broadened test coverage, and streamlined test maintenance.
March 2026 summary for NHSDigital/manage-vaccinations-in-schools-testing: Focused on reliability, coverage, and efficiency of the performance testing framework and test configurations to support vaccination workflow validation. Delivered targeted fixes and enhancements that improved data extraction accuracy, broadened test coverage, and streamlined test maintenance.
February 2026: Key stability improvements to the Consent Journey Performance Tests in NHSDigital/manage-vaccinations-in-schools-testing. Aligned session offset with updated data extraction logic and capped maximum session size to 2000, preventing crashes in typical school scenarios and delivering more reliable test outcomes. Implemented via two commits: 44767f9485f2922252c3dd0c168fd7ffdd03f2b0 (Update consent-journey.jmx - Move session page up to page ten) and d9d6588e1cea466396d113ce91c168b32a1011b2 (Change session query - add an upper limit of 2000). Result: cleaner feedback loops, improved confidence in releases, and faster validation of consent-related changes.
February 2026: Key stability improvements to the Consent Journey Performance Tests in NHSDigital/manage-vaccinations-in-schools-testing. Aligned session offset with updated data extraction logic and capped maximum session size to 2000, preventing crashes in typical school scenarios and delivering more reliable test outcomes. Implemented via two commits: 44767f9485f2922252c3dd0c168fd7ffdd03f2b0 (Update consent-journey.jmx - Move session page up to page ten) and d9d6588e1cea466396d113ce91c168b32a1011b2 (Change session query - add an upper limit of 2000). Result: cleaner feedback loops, improved confidence in releases, and faster validation of consent-related changes.
January 2026 (2026-01) performance summary for NHSDigital/manage-vaccinations-in-schools-testing: Delivered performance testing enhancements to the consent journey by introducing a user-defined page offset to skip completed sessions and focus on unscheduled ones, and extended test timeouts to 9 hours across testing and CI workflows to improve reliability and data extraction. Updated documentation to align README with the in-use GitHub Actions for performance testing, ensuring confidence in CI/CD configuration. These changes reduce test noise, improve signal in performance data, and enhance overall testing reliability and efficiency.
January 2026 (2026-01) performance summary for NHSDigital/manage-vaccinations-in-schools-testing: Delivered performance testing enhancements to the consent journey by introducing a user-defined page offset to skip completed sessions and focus on unscheduled ones, and extended test timeouts to 9 hours across testing and CI workflows to improve reliability and data extraction. Updated documentation to align README with the in-use GitHub Actions for performance testing, ensuring confidence in CI/CD configuration. These changes reduce test noise, improve signal in performance data, and enhance overall testing reliability and efficiency.
Month: 2025-12 — Performance-focused delivery for NHSDigital/manage-vaccinations-in-schools-testing. Delivered a major upgrade to the performance test suite for consent and nurse journeys, significantly improving reliability and scalability under load. Key work included dynamic threading for consent journey calculations, session page offset, and clinic filtering to enhance test reliability; improved data extraction and session handling in nurse journey tests; fixes to session attendance URLs and loop parameters; corrected assertion wording; and re-enabling patient search functionality within performance tests. This work reduces test flakiness, accelerates feedback to development, and supports safe, scalable vaccination deployment at scale.
Month: 2025-12 — Performance-focused delivery for NHSDigital/manage-vaccinations-in-schools-testing. Delivered a major upgrade to the performance test suite for consent and nurse journeys, significantly improving reliability and scalability under load. Key work included dynamic threading for consent journey calculations, session page offset, and clinic filtering to enhance test reliability; improved data extraction and session handling in nurse journey tests; fixes to session attendance URLs and loop parameters; corrected assertion wording; and re-enabling patient search functionality within performance tests. This work reduces test flakiness, accelerates feedback to development, and supports safe, scalable vaccination deployment at scale.
November 2025: Delivered foundational enhancements to security, runtime, and performance for NHSDigital/manage-vaccinations-in-schools-testing. Implemented STS integration with end-to-end logging, upgraded runtime to JDK with Dockerfile refinements, CDN-based JMeter binaries, and YAML performance configurations. Expanded asset handling, search capabilities, and health checks, while stabilizing the codebase with Rails update fixes and routine maintenance tasks.
November 2025: Delivered foundational enhancements to security, runtime, and performance for NHSDigital/manage-vaccinations-in-schools-testing. Implemented STS integration with end-to-end logging, upgraded runtime to JDK with Dockerfile refinements, CDN-based JMeter binaries, and YAML performance configurations. Expanded asset handling, search capabilities, and health checks, while stabilizing the codebase with Rails update fixes and routine maintenance tasks.
October 2025 monthly summary for the NHSDigital/manage-vaccinations-in-schools-testing repository. Focused on expanding and stabilizing performance testing coverage, adding data management validation, and strengthening CI/CD for performance tests. These efforts delivered realistic multi-session load scenarios, robust consent journey coverage, and streamlined deployment feedback to drive faster, evidence-based decisions.
October 2025 monthly summary for the NHSDigital/manage-vaccinations-in-schools-testing repository. Focused on expanding and stabilizing performance testing coverage, adding data management validation, and strengthening CI/CD for performance tests. These efforts delivered realistic multi-session load scenarios, robust consent journey coverage, and streamlined deployment feedback to drive faster, evidence-based decisions.
September 2025 (NHSDigital/manage-vaccinations-in-schools-testing) delivered a focused set of features and reliability improvements enabling a smooth transition into the new academic year cycle, alongside performance/CI enhancements and a cleanup pass to reduce maintenance risk. Key outcomes include project bootstrap and baseline setup, the introduction of new academic year changes, and substantial enhancements to performance/test configuration. End-to-end workflow capabilities were expanded with nurse journey, consent journey (STS), and a full workflow, complemented by JMeter artifact verification for easier auditing. Data processing stability improvements and readability/maintainability changes were implemented, along with a caching step to accelerate builds/tests and general quality improvements across the codebase. A thorough cleanup of legacy performance-test scripts and artifacts was performed to reduce maintenance overhead and risk.
September 2025 (NHSDigital/manage-vaccinations-in-schools-testing) delivered a focused set of features and reliability improvements enabling a smooth transition into the new academic year cycle, alongside performance/CI enhancements and a cleanup pass to reduce maintenance risk. Key outcomes include project bootstrap and baseline setup, the introduction of new academic year changes, and substantial enhancements to performance/test configuration. End-to-end workflow capabilities were expanded with nurse journey, consent journey (STS), and a full workflow, complemented by JMeter artifact verification for easier auditing. Data processing stability improvements and readability/maintainability changes were implemented, along with a caching step to accelerate builds/tests and general quality improvements across the codebase. A thorough cleanup of legacy performance-test scripts and artifacts was performed to reduce maintenance overhead and risk.
August 2025 monthly summary for NHSDigital/manage-vaccinations-in-schools-testing. This month focused on delivering a robust Large Org Performance Test setup, expanding configuration management, and hardening reliability and observability to accelerate validation of performance and scale. Key outcomes include a complete Large Org Performance Test Setup and Workflow, YAML configuration alignment for large-org scenarios, enhanced logging, and critical reliability improvements across the batch, enabling faster decision-making and safer production releases.
August 2025 monthly summary for NHSDigital/manage-vaccinations-in-schools-testing. This month focused on delivering a robust Large Org Performance Test setup, expanding configuration management, and hardening reliability and observability to accelerate validation of performance and scale. Key outcomes include a complete Large Org Performance Test Setup and Workflow, YAML configuration alignment for large-org scenarios, enhanced logging, and critical reliability improvements across the batch, enabling faster decision-making and safer production releases.
July 2025 monthly summary for NHSDigital/manage-vaccinations-in-schools-testing: Focused on elevating performance testing fidelity across multiple user contexts and strengthening test reliability through urn-mapping improvements and test script modernization. Delivered a configurable user context flow and aligned test logic with updated flu vaccination questions, while preserving backward compatibility with the default user.
July 2025 monthly summary for NHSDigital/manage-vaccinations-in-schools-testing: Focused on elevating performance testing fidelity across multiple user contexts and strengthening test reliability through urn-mapping improvements and test script modernization. Delivered a configurable user context flow and aligned test logic with updated flu vaccination questions, while preserving backward compatibility with the default user.
June 2025 monthly summary for NHSDigital/manage-vaccinations-in-schools-testing: Delivered foundational scaffolding and core base architecture to enable scalable feature development, established testing/workflow readiness, and advanced reliability and reporting capabilities. Conducted configuration experimentation around Jekyll, integrated performance-focused test updates, and implemented automated job summary generation. A broad set of bug fixes and enhancements improved data handling, consent flows, and release readiness, aligning with business goals for reliability, traceability, and faster delivery.
June 2025 monthly summary for NHSDigital/manage-vaccinations-in-schools-testing: Delivered foundational scaffolding and core base architecture to enable scalable feature development, established testing/workflow readiness, and advanced reliability and reporting capabilities. Conducted configuration experimentation around Jekyll, integrated performance-focused test updates, and implemented automated job summary generation. A broad set of bug fixes and enhancements improved data handling, consent flows, and release readiness, aligning with business goals for reliability, traceability, and faster delivery.
May 2025 delivered a solid foundation and a set of critical enhancements for NHSDigital/manage-vaccinations-in-schools-testing. Key features include initial project scaffolding and assets, a file upload stage, cohort/test data for realistic scenarios, and performance/CI workflow improvements. Critical bugs addressed include removal of batch-id from vaccinations API calls, URN cleanup across consent/nurse/workflow, and reliability fixes for test durations, default values, and empty-database handling. The work increased test coverage, CI stability, and maintainability, enabling faster iteration and safer feature delivery. Technologies demonstrated include Git-based collaboration, YAML-driven CI/CD, end-to-end and performance testing tooling, and data-management scripts.
May 2025 delivered a solid foundation and a set of critical enhancements for NHSDigital/manage-vaccinations-in-schools-testing. Key features include initial project scaffolding and assets, a file upload stage, cohort/test data for realistic scenarios, and performance/CI workflow improvements. Critical bugs addressed include removal of batch-id from vaccinations API calls, URN cleanup across consent/nurse/workflow, and reliability fixes for test durations, default values, and empty-database handling. The work increased test coverage, CI stability, and maintainability, enabling faster iteration and safer feature delivery. Technologies demonstrated include Git-based collaboration, YAML-driven CI/CD, end-to-end and performance testing tooling, and data-management scripts.

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