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Witek

PROFILE

Witek

Over 11 months, contributed to SkillsFundingAgency repositories by building and enhancing features for apprenticeship and learner management systems. Delivered robust API development and integration using C#, ASP.NET Core, and SQL, focusing on data integrity, compliance, and scalable workflows. Implemented business-critical features such as bulk learner employer updates, age eligibility validation, and analytics payload enrichment, while improving onboarding through documentation and test coverage. Addressed routing and UI accessibility issues, streamlined code ownership governance, and refactored project structures for maintainability. Emphasized test-driven development and cross-repo alignment, ensuring reliable data processing and maintainable codebases that support evolving apprenticeship program requirements.

Overall Statistics

Feature vs Bugs

93%Features

Repository Contributions

54Total
Bugs
2
Commits
54
Features
28
Lines of code
1,462,884
Activity Months11

Your Network

126 people

Same Organization

@education.gov.uk
68

Work History

May 2026

2 Commits • 2 Features

May 1, 2026

May 2026 performance summary focusing on delivering scalable bulk learner management capabilities and provider commitments enhancements across two core repos, with a clear focus on business value and data integrity.

April 2026

3 Commits • 3 Features

Apr 1, 2026

April 2026 monthly summary emphasizing delivering targeted learner filtering capabilities and improving code modularity across two key repos. The team completed feature delivery for ILR learner selection training-type filtering and expanded SharedOuterApi test coverage and modularity, while stabilizing CI and build readiness through master-branch merges and related conflict resolution.

March 2026

1 Commits • 1 Features

Mar 1, 2026

March 2026: Delivered targeted codebase refactor and cleanup for SkillsFundingAgency/das-apim-endpoints. By renaming a test class and removing an unnecessary project reference in the shared code, the repository structure is clearer and easier to maintain. This work reduces technical debt, lowers risk of regressions, and improves onboarding for new contributors, establishing a solid foundation for upcoming features and enhancements. Commits included af04ce490b1431a83a5c1899bfd542df446f4182 ('remove ref from shared project').

February 2026

12 Commits • 4 Features

Feb 1, 2026

February 2026 monthly summary focusing on key business value and technical achievements across two core repos. Highlights include: (1) Features delivered: Commitments Cache Enhancement and ImportCoursesJob enabling batch processing, config-based short-course filtering, added unit tests, and LearningType type-safety improvements; Approvals Module data structure for generic courses; Course Funding naming clarity via MaxFunding; Training Courses API enhancement with List endpoint, response model upgrades, and tests. (2) Major fixes: resolved master/branch conflicts during integration (notably in Approvals data structure) and improved data context consistency; enhanced exception handling and test coverage. (3) Impact: improved data freshness and reliability for apprenticeship commitments, more robust and searchable training courses API, and safer, clearer funding configuration. (4) Technologies/skills demonstrated: C#, .NET, EF Core DbContext integration, SQL project workflows, unit testing, config-driven logic, and API design.

January 2026

11 Commits • 2 Features

Jan 1, 2026

January 2026 monthly summary: Delivered key features and robustness improvements across two repositories, driving data integrity, processing efficiency, and business value for apprenticeship programs.

December 2025

6 Commits • 4 Features

Dec 1, 2025

December 2025 monthly summary: Implemented key data validation and UI enhancements across three repositories to boost apprenticeship compliance, data quality, and user experience. Notable work includes age eligibility validation for Level 7 CSV uploads with data-model and service updates and expanded unit tests; UI improvements for Recognise Prior Learning; and accessibility-focused updates on the Choose an Employer page. These changes standardize validation, improve test coverage, and reduce risk of apprenticeship non-compliance, delivering measurable business value and a better user experience.

November 2025

2 Commits • 2 Features

Nov 1, 2025

November 2025: Delivered targeted improvements to reliability and onboarding flows across two repos, enhancing test coverage, data validation, and user guidance. Results reduce risk of regressions and streamline onboarding for apprentices.

October 2025

8 Commits • 3 Features

Oct 1, 2025

Month: 2025-10 — Consolidated developer documentation and feature onboarding for SkillsFundingAgency/das-apim-endpoints. Delivered new and improved docs to support feature rollouts, local development, and cross-team governance. Focused on making Azure Storage-based workflows & related setups repeatable, alongside a broader documentation refresh across multiple modules to reduce onboarding time and maintenance overhead.

September 2025

2 Commits • 2 Features

Sep 1, 2025

September 2025 monthly summary: Key analytics enhancement delivered across two repos to strengthen data-driven decision making. Implemented LevyFlag extraction from user claims and inclusion in the Google Analytics data payload, enabling granular user segmentation and improved reporting. Impact highlights: - Added LevyFlag to GaData and wired through to the GA tracking script in both the employer accounts and employer commitments v2 repositories, enabling cohort analysis by LevyFlag at measurement time. - Achieved cross-repo alignment of GA data payloads, ensuring consistent analytics across platforms and simplifying reporting pipelines. - Reduced data gaps for LevyFlag-based analysis, enabling more accurate attribution and business insights related to levy-enabled user segments. Technologies/skills demonstrated: - Data modeling and payload enrichment for Google Analytics - Claims-based data extraction and serialization - Cross-repo coordination and PR-driven development - GA tracking integration and analytics-driven reporting

August 2025

5 Commits • 5 Features

Aug 1, 2025

August 2025 was focused on strengthening code ownership governance across four DAS repositories and laying the groundwork for enhanced data filtering in learner and commitments data. Key governance work established clearer ownership by adding @witpo to CODEOWNERS for core source code paths, improving review accountability and response times. In parallel, we initiated filtration capabilities to support more precise data retrieval (start month/year and start date) in the provider commitments and API endpoints, setting the stage for improved reporting and analytics. No explicit major bugs fixed this month; the work delivered reduces delivery risk and improves maintainability, security, and collaboration across teams.

July 2025

2 Commits

Jul 1, 2025

In July 2025, delivered a focused fix in SkillsFundingAgency/das-employercommitments-v2 to restore reliable cohort details navigation by renaming the route from 'Details' to 'CohortDetails' and updating tests accordingly. This resolved a broken cohort details link, strengthened the test suite, and improved user experience. The work demonstrates routing discipline, test-driven updates, and solid Git traceability.

Activity

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Quality Metrics

Correctness90.4%
Maintainability88.6%
Architecture87.8%
Performance87.8%
AI Usage22.6%

Skills & Technologies

Programming Languages

C#HTMLJSONMarkdownSQLYAML

Technical Skills

API DevelopmentAPI IntegrationAPI developmentAPI integrationASP.NETASP.NET CoreASP.NET MVCAzure DevOpsAzure FunctionsBackend DevelopmentC#C# DevelopmentC# developmentCode Ownership ManagementDevOps

Repositories Contributed To

5 repos

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

SkillsFundingAgency/das-commitments

Aug 2025 Feb 2026
4 Months active

Languages Used

C#SQLJSONYAML

Technical Skills

Code Ownership ManagementDevOpsAPI developmentC#back end developmentbackend development

SkillsFundingAgency/das-apim-endpoints

Aug 2025 May 2026
8 Months active

Languages Used

C#MarkdownJSONYAML

Technical Skills

API DevelopmentBackend DevelopmentUnit TestingDocumentationAPI integrationC#

SkillsFundingAgency/das-providercommitments

Aug 2025 May 2026
6 Months active

Languages Used

C#HTMLJSONYAML

Technical Skills

API IntegrationBackend DevelopmentASP.NETback end developmentunit testingAPI integration

SkillsFundingAgency/das-employercommitments-v2

Jul 2025 Sep 2025
3 Months active

Languages Used

C#

Technical Skills

ASP.NET MVCBackend DevelopmentUnit TestingDevOpsRepository ManagementASP.NET

SkillsFundingAgency/das-employer-accounts

Sep 2025 Sep 2025
1 Month active

Languages Used

C#

Technical Skills

ASP.NETBackend DevelopmentWeb Development