
Jon Harris engineered robust backend and workflow enhancements across SkillsFundingAgency repositories, including das-employer-accounts and das-employercommitments-v2, focusing on security, reliability, and user experience. He modernized authentication and claims management, introduced comprehensive API security headers, and improved telemetry using C# and ASP.NET Core. In das-playwright-automation-test-suite, Jon expanded test coverage and stabilized support console workflows, while in das-apprenticeships, he optimized data access and pagination with SQL and LINQ. His work emphasized maintainable code through refactoring, dependency management, and rigorous testing, resulting in more resilient systems, safer authentication flows, and scalable APIs that support faster triage and higher service uptime.

April 2025 performance summary: Focused on delivering user-facing workflow enhancements, strengthening security and reliability, and improving test stability across three repositories. Key features include ULN details viewing and robust search in the Support Console, Cohort search/view UX improvements, and extended Support Console search capabilities. Backend improvements cover pagination, indexing, API date handling, health checks, and removal of anonymous access to improve security and performance. The month also featured extensive code refactoring and test scaffolding to improve maintainability and reduce flaky tests. Business impact: faster, more reliable support workflows, safer authentication, and more scalable APIs, enabling quicker triage and higher uptime.
April 2025 performance summary: Focused on delivering user-facing workflow enhancements, strengthening security and reliability, and improving test stability across three repositories. Key features include ULN details viewing and robust search in the Support Console, Cohort search/view UX improvements, and extended Support Console search capabilities. Backend improvements cover pagination, indexing, API date handling, health checks, and removal of anonymous access to improve security and performance. The month also featured extensive code refactoring and test scaffolding to improve maintainability and reduce flaky tests. Business impact: faster, more reliable support workflows, safer authentication, and more scalable APIs, enabling quicker triage and higher uptime.
March 2025 monthly highlights across six SkillsFundingAgency repositories, focused on data accuracy, security, test reliability, and CI/CD stability. Delivered targeted fixes and enhancements that reduce risk, improve user trust, and enable scalable development across commitments, accounts, apprenticeships, and automation testing.
March 2025 monthly highlights across six SkillsFundingAgency repositories, focused on data accuracy, security, test reliability, and CI/CD stability. Delivered targeted fixes and enhancements that reduce risk, improve user trust, and enable scalable development across commitments, accounts, apprenticeships, and automation testing.
February 2025 delivered security and resilience improvements across multiple repos, enhanced accessibility, and modernized dependencies. Implemented comprehensive security headers across APIs, consolidated header handling to prevent duplication, introduced an AccessibilityStatement feature with accessible links, improved cohort navigation and data passing in the employer commitments flow, and upgraded the validation framework and libraries to strengthen error handling and observability. These changes reduce security risk, improve user experience, and increase development velocity through stable dependencies and better test coverage.
February 2025 delivered security and resilience improvements across multiple repos, enhanced accessibility, and modernized dependencies. Implemented comprehensive security headers across APIs, consolidated header handling to prevent duplication, introduced an AccessibilityStatement feature with accessible links, improved cohort navigation and data passing in the employer commitments flow, and upgraded the validation framework and libraries to strengthen error handling and observability. These changes reduce security risk, improve user experience, and increase development velocity through stable dependencies and better test coverage.
January 2025 performance summary for Skills Funding Agency repos (das-employer-accounts and das-employercommitments-v2). Delivered tangible business value by stabilizing core flows, expanding test coverage, upgrading dependencies for security and compatibility, enhancing observability, and improving routing and performance. Key delivery themes include test scenario expansion, dependency and package management, logging enhancements, routing improvements, and fixes to API integration and encoding.
January 2025 performance summary for Skills Funding Agency repos (das-employer-accounts and das-employercommitments-v2). Delivered tangible business value by stabilizing core flows, expanding test coverage, upgrading dependencies for security and compatibility, enhancing observability, and improving routing and performance. Key delivery themes include test scenario expansion, dependency and package management, logging enhancements, routing improvements, and fixes to API integration and encoding.
December 2024 performance summary (business value and technical achievements) across SkillsFundingAgency DAS projects. Focused improvements on account-related claims handling, authentication stability, and overall code quality to reduce risk, improve data integrity, and enable safer future changes. Key features delivered: - GovUK Auth dependency upgrades across projects to prerelease/stable versions to improve reliability and compatibility. Commit set includes: ea1f12699cf7e52bc61e51153a0c3314718d9f3e, f844001c05e386d4058eea302cf6a59f6e3f0a4a, 0d991e08b72268b4fcc8e201fc59a51830f48100, 91523378f01aa2d9183cba5ca024374ac004680e. - Code quality and refactor for account-related components to improve testability, constructor injection, and reduce coupling without changing user-facing behavior. Commit: 99cd2677fa699c4c8f8a9a7c92a9c9b41ff593fb. - Account claims management improvements in das-employercommitments-v2: consolidation via AccountClaimsService, forceRefresh control, robust handling of empty/serialized claims, removal of unnecessary middleware, and improved logging. Commits: 98c0bb4ca40733a3838c335c22d111e59cc368a4, 4e29e0382c16108cb453768e1d40caa246f3d749, 2c8aaf0f5461644a0698d529bfa03897ed613d4e, 4a4c5df15d6336fc1dc453a61eaf3caf9a908f2c, d95b5ba9484055b4b8d1f0d72617327a82941ac4, baa89fbee4713aba24459cdd896a4cb15a0dbf2c. - Authentication library upgrade to stable release across projects to improve reliability and compatibility. Commit: 2ac53cc375bebd20f822d9f713815286a955bb9d. Major bugs fixed: - Associated Accounts Claims Handling and Validation Improvements (das-employer-accounts): fixed bug where the AssociatedAccounts claim wasn’t added when the number of associated accounts was at/above the max, ensured empty or missing data is handled safely, prevented deserialization errors for large claims, and refined claim population refresh behavior. Tests updated to reflect edge cases and correct behavior. Commits: 2be1ac3fb3446661303f64b10933af8be2eda2e8, e1a97bbfc9399e01e5267024614d037798484bf5, ddb924e486387b560ff3b8e0f10463ba4bcf0ff1, 0da4798144231dd34ddc6c199f1320a3743cabe8, 33146eebbeedd1c1af8d9f2f3f270e50c72383f7, b40f688d72f253fcb5bfe35d4395be2562801ac7, 186bdcf85c0689c105d634506a2eed3d92394960, 0346e7d17937f59ecb30338494fdf28dd7ecbb53, a3179210ea81e39088ef6775759882b43039729d, 3d56cfeb81b017b848dd2e81a3569a966498e7af. Overall impact and accomplishments: - Raised reliability and correctness of employer account claims; improved handling of edge cases and payload sizes; reduced risk in claims population logic; strengthened observability through logging improvements; and moved towards more maintainable, testable architecture. Technologies/skills demonstrated: - .NET/C#, GovUK authentication library usage and upgrades, dependency management, service-oriented refactoring, testability improvements, logging and observability, and middleware cleanup.
December 2024 performance summary (business value and technical achievements) across SkillsFundingAgency DAS projects. Focused improvements on account-related claims handling, authentication stability, and overall code quality to reduce risk, improve data integrity, and enable safer future changes. Key features delivered: - GovUK Auth dependency upgrades across projects to prerelease/stable versions to improve reliability and compatibility. Commit set includes: ea1f12699cf7e52bc61e51153a0c3314718d9f3e, f844001c05e386d4058eea302cf6a59f6e3f0a4a, 0d991e08b72268b4fcc8e201fc59a51830f48100, 91523378f01aa2d9183cba5ca024374ac004680e. - Code quality and refactor for account-related components to improve testability, constructor injection, and reduce coupling without changing user-facing behavior. Commit: 99cd2677fa699c4c8f8a9a7c92a9c9b41ff593fb. - Account claims management improvements in das-employercommitments-v2: consolidation via AccountClaimsService, forceRefresh control, robust handling of empty/serialized claims, removal of unnecessary middleware, and improved logging. Commits: 98c0bb4ca40733a3838c335c22d111e59cc368a4, 4e29e0382c16108cb453768e1d40caa246f3d749, 2c8aaf0f5461644a0698d529bfa03897ed613d4e, 4a4c5df15d6336fc1dc453a61eaf3caf9a908f2c, d95b5ba9484055b4b8d1f0d72617327a82941ac4, baa89fbee4713aba24459cdd896a4cb15a0dbf2c. - Authentication library upgrade to stable release across projects to improve reliability and compatibility. Commit: 2ac53cc375bebd20f822d9f713815286a955bb9d. Major bugs fixed: - Associated Accounts Claims Handling and Validation Improvements (das-employer-accounts): fixed bug where the AssociatedAccounts claim wasn’t added when the number of associated accounts was at/above the max, ensured empty or missing data is handled safely, prevented deserialization errors for large claims, and refined claim population refresh behavior. Tests updated to reflect edge cases and correct behavior. Commits: 2be1ac3fb3446661303f64b10933af8be2eda2e8, e1a97bbfc9399e01e5267024614d037798484bf5, ddb924e486387b560ff3b8e0f10463ba4bcf0ff1, 0da4798144231dd34ddc6c199f1320a3743cabe8, 33146eebbeedd1c1af8d9f2f3f270e50c72383f7, b40f688d72f253fcb5bfe35d4395be2562801ac7, 186bdcf85c0689c105d634506a2eed3d92394960, 0346e7d17937f59ecb30338494fdf28dd7ecbb53, a3179210ea81e39088ef6775759882b43039729d, 3d56cfeb81b017b848dd2e81a3569a966498e7af. Overall impact and accomplishments: - Raised reliability and correctness of employer account claims; improved handling of edge cases and payload sizes; reduced risk in claims population logic; strengthened observability through logging improvements; and moved towards more maintainable, testable architecture. Technologies/skills demonstrated: - .NET/C#, GovUK authentication library usage and upgrades, dependency management, service-oriented refactoring, testability improvements, logging and observability, and middleware cleanup.
November 2024 performance summary: Delivered UX refinements, modernized telemetry, and substantial codebase cleanup across four repositories, driving improved usability, observability, and maintainability. The work focused on business value through reliable user flows, richer telemetry for faster diagnosis, and streamlined maintenance. Key features delivered: - SkillsFundingAgency/das-providercommitments: UI copy and layout refinements for Training Date Requests and Employer Notifications, improving confirmation flow and clarity in EmployerNotified view (commits 59a03d4fb29e22c2b8d0ccc7b9385e68938edcc5; 779e2ccb3b003d769c1d91fd3798b995190246e9). - SkillsFundingAgency/das-employercommitments-v2: Telemetry and Logging Modernization (OpenTelemetry migration; config to APPLICATIONINSIGHTS_CONNECTION_STRING; added runtime checks; removal of legacy logging) across several commits (e.g., 7135832208459b4e2b5f3348d6fc46da3a0da12c; 3277457f2236ba33990c9274c519a86cd5a7c152; b270a76298aeb6e8b7cb1c088aba33aca30f2010; c654aeaaeb1108431bf79967b75c48057c5b8cd0; 18a3e0cc5fe500f4212c99605d40fb652d8de43d); 9f73dd517c036329687250aad1c5594086a04c0a). - SkillsFundingAgency/das-employer-accounts: Logging and Telemetry Cleanup; TimeProvider Replacement; AssociatedAccounts integration; tests and quality improvements; extensive cleanup to remove legacy logging and simplify configuration (multiple commits including 6739eb45160bd639da4bf0568a4d059d4e43219c; c8f21324927bff98bcd5b7fd49fb1391da03b324; 2409c9681fb8c95833dc332016310618189f67aa; df29791e3d9a3a0276ae4ae1308fd089c377c644; 6cfff1127daf426af08e35d8f2811d8b18099d83; f836b27a0e574ae1c767a27ee2e7d23c1395c47c). - SkillsFundingAgency/das-employer-accounts: TimeProvider removal; IHtmlHelper.Partial removal; System.Clock removal; magic strings cleanup; AssociatedAccounts helper/service integration; ongoing work and tests (examples: c6c2a436f07a6b765f5d31a819fcef0bd932c00f; 7cff1b030d558d1d88d2b2ad0c3e09648b03711b; 8f221aa252906ff4260ca6cca19d7c511cb13efe; bf70fe108e9a77ba4fb894fa6d4f7f100eeb4568; 2dcaee838881deaf392d0f79fcd25286e37e3537; 6ae14e48370fcddaf9d17095dbb9d03a5f3843ce; 6c4ebb0e2e6c480d1b43ce1bb1a372fbd56481f6; 782f3dab09ee00ab64596750998effe3278f2ba7; f34e950f86e1845a0d306c8f0ad567aa684de1b3; ec6f62ad4aac77320b741439e41f61c124adae82; 718fd3b54608ba6dcc8cc13fbd1dec2464fc6701; 11ad42da9336771d430073bfcb6121589e3931bb; d86aa24f7ccdd56b7640dddf4b4068a34ca36373; d559d697b28ae8581abcd26723dee843aea21a4e; 2c5b046c6f9cd2cf9e3c4a2d75439be079bd322a; b86f995102ae3e8cb16dc456f34f1d54698b052f; a6675949cbd2fb66a5c3f2df34f5829a5491f91e; 9207b90aeb0f412ce9a1a1f9c9d9561341853f31; 752b8b9a8f029f0a1650cfd94b7655fd9ecb1d99; 1ab24a3978699308d91b2525cf97c2bd118fac7a; e08f1299d25f02422eebad48abe390675989624d; cd514d55451ca7c61173a8e189f91ec1de7ea83b; c091df5dae5896032bfc5db42ebca1882017b7ee; 6ed8b7abe26b3e531b57bed5fcca8a14878381d2). - SkillsFundingAgency/das-commitments: Security vulnerability patch in dependency update (Vulnerable package fix; a0db6c6eb94a3c279cabea5feb38738776421cb1). Major bugs fixed: - DAS employer accounts: Fix failing test Be0218cb and related test warnings; test improvements and identity package bumps. Overall impact and accomplishments: - Increased system reliability and maintainability through telemetry modernization, removal of legacy logging, and project consolidation; improved user experience with UX refinements; enhanced security posture via dependency patches; stronger test coverage and quality assurance. Technologies and skills demonstrated: - OpenTelemetry and App Insights integration, System.TimeProvider migration, NuGet package management, extensive code cleanup and refactoring, AssociatedAccounts integration, testing discipline, and security-focused maintenance.
November 2024 performance summary: Delivered UX refinements, modernized telemetry, and substantial codebase cleanup across four repositories, driving improved usability, observability, and maintainability. The work focused on business value through reliable user flows, richer telemetry for faster diagnosis, and streamlined maintenance. Key features delivered: - SkillsFundingAgency/das-providercommitments: UI copy and layout refinements for Training Date Requests and Employer Notifications, improving confirmation flow and clarity in EmployerNotified view (commits 59a03d4fb29e22c2b8d0ccc7b9385e68938edcc5; 779e2ccb3b003d769c1d91fd3798b995190246e9). - SkillsFundingAgency/das-employercommitments-v2: Telemetry and Logging Modernization (OpenTelemetry migration; config to APPLICATIONINSIGHTS_CONNECTION_STRING; added runtime checks; removal of legacy logging) across several commits (e.g., 7135832208459b4e2b5f3348d6fc46da3a0da12c; 3277457f2236ba33990c9274c519a86cd5a7c152; b270a76298aeb6e8b7cb1c088aba33aca30f2010; c654aeaaeb1108431bf79967b75c48057c5b8cd0; 18a3e0cc5fe500f4212c99605d40fb652d8de43d); 9f73dd517c036329687250aad1c5594086a04c0a). - SkillsFundingAgency/das-employer-accounts: Logging and Telemetry Cleanup; TimeProvider Replacement; AssociatedAccounts integration; tests and quality improvements; extensive cleanup to remove legacy logging and simplify configuration (multiple commits including 6739eb45160bd639da4bf0568a4d059d4e43219c; c8f21324927bff98bcd5b7fd49fb1391da03b324; 2409c9681fb8c95833dc332016310618189f67aa; df29791e3d9a3a0276ae4ae1308fd089c377c644; 6cfff1127daf426af08e35d8f2811d8b18099d83; f836b27a0e574ae1c767a27ee2e7d23c1395c47c). - SkillsFundingAgency/das-employer-accounts: TimeProvider removal; IHtmlHelper.Partial removal; System.Clock removal; magic strings cleanup; AssociatedAccounts helper/service integration; ongoing work and tests (examples: c6c2a436f07a6b765f5d31a819fcef0bd932c00f; 7cff1b030d558d1d88d2b2ad0c3e09648b03711b; 8f221aa252906ff4260ca6cca19d7c511cb13efe; bf70fe108e9a77ba4fb894fa6d4f7f100eeb4568; 2dcaee838881deaf392d0f79fcd25286e37e3537; 6ae14e48370fcddaf9d17095dbb9d03a5f3843ce; 6c4ebb0e2e6c480d1b43ce1bb1a372fbd56481f6; 782f3dab09ee00ab64596750998effe3278f2ba7; f34e950f86e1845a0d306c8f0ad567aa684de1b3; ec6f62ad4aac77320b741439e41f61c124adae82; 718fd3b54608ba6dcc8cc13fbd1dec2464fc6701; 11ad42da9336771d430073bfcb6121589e3931bb; d86aa24f7ccdd56b7640dddf4b4068a34ca36373; d559d697b28ae8581abcd26723dee843aea21a4e; 2c5b046c6f9cd2cf9e3c4a2d75439be079bd322a; b86f995102ae3e8cb16dc456f34f1d54698b052f; a6675949cbd2fb66a5c3f2df34f5829a5491f91e; 9207b90aeb0f412ce9a1a1f9c9d9561341853f31; 752b8b9a8f029f0a1650cfd94b7655fd9ecb1d99; 1ab24a3978699308d91b2525cf97c2bd118fac7a; e08f1299d25f02422eebad48abe390675989624d; cd514d55451ca7c61173a8e189f91ec1de7ea83b; c091df5dae5896032bfc5db42ebca1882017b7ee; 6ed8b7abe26b3e531b57bed5fcca8a14878381d2). - SkillsFundingAgency/das-commitments: Security vulnerability patch in dependency update (Vulnerable package fix; a0db6c6eb94a3c279cabea5feb38738776421cb1). Major bugs fixed: - DAS employer accounts: Fix failing test Be0218cb and related test warnings; test improvements and identity package bumps. Overall impact and accomplishments: - Increased system reliability and maintainability through telemetry modernization, removal of legacy logging, and project consolidation; improved user experience with UX refinements; enhanced security posture via dependency patches; stronger test coverage and quality assurance. Technologies and skills demonstrated: - OpenTelemetry and App Insights integration, System.TimeProvider migration, NuGet package management, extensive code cleanup and refactoring, AssociatedAccounts integration, testing discipline, and security-focused maintenance.
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