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Kerr Rainey

PROFILE

Kerr Rainey

Over six months, this developer contributed to alphagov/pay-selfservice, pay-adminusers, pay-publicauth, and pay-webhooks by delivering nine features and addressing configuration and documentation improvements. Their work included building detailed webhook event views with pagination, enhancing accessibility and UI clarity, and simplifying account settings through legacy code removal. They expanded public sector email validation and extended authentication APIs, using Java, JavaScript, and Node.js. The developer emphasized robust automated testing with Cypress and unit tests, improved configuration management, and maintained clear documentation. Their approach focused on maintainability, risk reduction, and deployment confidence, ensuring stable integrations and streamlined user experiences across multiple repositories.

Overall Statistics

Feature vs Bugs

90%Features

Repository Contributions

25Total
Bugs
1
Commits
25
Features
9
Lines of code
4,023
Activity Months6

Work History

March 2026

1 Commits • 1 Features

Mar 1, 2026

Month: 2026-03 — Alphagov/pay-adminusers: No new features or bug fixes in production; focused on validating the CI/CD build trigger process via a documentation-only change. This work ensures the build pipeline correctly responds to documentation changes and helps maintain deployment confidence with minimal risk.

February 2026

1 Commits

Feb 1, 2026

February 2026 monthly summary for alphagov/pay-webhooks focused on configuration hygiene and risk reduction. Implemented a Domain Access List Cleanup by removing an unused azurewebsites.net domain from the allowed domains in the configuration. The change reduces surface area and prevents potential misconfiguration or unintended access, aligning with security governance and service decoupling. Change is associated with PP-14988 and documented in commit 148e0ad6836f5c0f7081687cec31c222362e729f. Overall impact includes a tighter security posture, improved maintainability, and traceability of changes. Technologies/skills demonstrated include precise config changes, Git-based change management, and collaboration with governance processes.

May 2025

2 Commits • 2 Features

May 1, 2025

Month: 2025-05. Focused on delivering features and stabilizing authentication workflows across two repos: pay-adminusers and pay-publicauth. Highlights include expanded public sector domain recognition for Lancaster and Morecambe College, and API enhancements to Public Authentication with service_mode and service_external_id, along with corresponding tests and OpenAPI updates. These changes improve partner onboarding, security/traceability, and API contract stability for external integrations.

April 2025

4 Commits • 1 Features

Apr 1, 2025

April 2025 highlights for alphagov/pay-selfservice: Delivered the Account Settings Simplification by removing legacy Digital Wallet, billing, MOTO, and payment type settings. This cleanup removed obsolete controllers, views, and routes, reducing maintenance burden and potential user confusion, and aligning the product with a streamlined account settings experience. No major bugs fixed this month; the focus was on codebase simplification and risk reduction to enable faster future changes.

March 2025

12 Commits • 3 Features

Mar 1, 2025

March 2025 monthly summary for alphagov/pay-selfservice: Delivered a new Webhook Event Details page with monitoring capability, delivery history, JSON resource view, and accessibility improvements; clarified billing address usage in card payments settings; and enhanced Settings UI accessibility. Expanded testing coverage with unit tests and Cypress tests, addressed UI display issues, and strengthened overall reliability and usability.

February 2025

5 Commits • 2 Features

Feb 1, 2025

February 2025 monthly summary for alphagov/pay-selfservice: Key features delivered include a webhook detail view with an event listing, detailed fields (resource ID, event type, last delivery status, event date, and link to event details) along with pagination and filtering controls (PP-13521). This was complemented by implementing pagination for webhook detail messages to improve performance and usability. In parallel, we expanded card payments settings test coverage with unit tests for Apple Pay, Google Pay, and billing address collection, and Cypress tests to validate navigation and detail page access (PP-12416). Business impact: faster root-cause analysis for webhook failures, reduced manual QA workload, and higher confidence in payment settings changes in production. Technical accomplishments: end-to-end feature implementation, robust test coverage, maintainable commit history, improved code quality, and better CI readiness.

Activity

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Quality Metrics

Correctness98.0%
Maintainability96.8%
Architecture95.2%
Performance96.0%
AI Usage20.0%

Skills & Technologies

Programming Languages

CSSJavaJavaScriptMarkdownNunjucksYAML

Technical Skills

API DevelopmentAPI IntegrationAccessibilityBack End DevelopmentBackend DevelopmentCSSCode RefactoringCypressEmail ValidationEnd-to-end testingExpress.jsFront End DevelopmentFrontend DevelopmentFull Stack DevelopmentFull stack development

Repositories Contributed To

4 repos

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

alphagov/pay-selfservice

Feb 2025 Apr 2025
3 Months active

Languages Used

JavaScriptNunjucksCSS

Technical Skills

API IntegrationBack End DevelopmentBackend DevelopmentCypressEnd-to-end testingExpress.js

alphagov/pay-adminusers

May 2025 Mar 2026
2 Months active

Languages Used

JavaMarkdown

Technical Skills

Backend DevelopmentEmail Validationdocumentation

alphagov/pay-publicauth

May 2025 May 2025
1 Month active

Languages Used

JavaYAML

Technical Skills

API DevelopmentBackend DevelopmentJava

alphagov/pay-webhooks

Feb 2026 Feb 2026
1 Month active

Languages Used

YAML

Technical Skills

configuration management