
Andrew Leith developed and maintained core features for the CDS SNC notification platform, focusing on reliability, accessibility, and security across repositories such as notification-admin and notification-terraform. He engineered authentication flows, observability dashboards, and bilingual notification templates, using Python, JavaScript, and Terraform to address operational and compliance needs. Andrew improved CI/CD pipelines, implemented CloudWatch monitoring, and enhanced frontend accessibility with ARIA and semantic HTML. His work included database migrations for service suspension tracking and robust API integrations, ensuring maintainable, testable code. By refining infrastructure, UI components, and internationalization, Andrew delivered solutions that improved user experience and operational transparency.

October 2025 monthly summary for CDS SNC notification services. Delivered security/compliance auditing features, accessibility improvements, migration readiness for suspension data, and bilingual notification capabilities, aligning with security, accessibility, and internationalization goals. Key work included CloudWatch audit query for admin removals, UI/ARIA enhancements, welcome page restructuring, terms updates, and suspension metadata migration with bilingual email templates.
October 2025 monthly summary for CDS SNC notification services. Delivered security/compliance auditing features, accessibility improvements, migration readiness for suspension data, and bilingual notification capabilities, aligning with security, accessibility, and internationalization goals. Key work included CloudWatch audit query for admin removals, UI/ARIA enhancements, welcome page restructuring, terms updates, and suspension metadata migration with bilingual email templates.
September 2025 monthly summary for developer work across two repositories, focusing on accessibility, UI reliability, and business value. Delivered key accessibility enhancements and UI refinements that improve usability for all users, support internationalization, and reduce potential support friction.
September 2025 monthly summary for developer work across two repositories, focusing on accessibility, UI reliability, and business value. Delivered key accessibility enhancements and UI refinements that improve usability for all users, support internationalization, and reduce potential support friction.
Monthly summary for 2025-08: Delivered security, reliability, and localization improvements across notification-admin, notification-api, and documentation. Focused on authentication reliability, test stability, template tooling, language-aware routing, and accessibility to reduce production risk and accelerate value delivery for customers.
Monthly summary for 2025-08: Delivered security, reliability, and localization improvements across notification-admin, notification-api, and documentation. Focused on authentication reliability, test stability, template tooling, language-aware routing, and accessibility to reduce production risk and accelerate value delivery for customers.
July 2025 monthly summary focused on delivering UI and security enhancements in notification-admin, strengthening testing coverage, and stabilizing infrastructure. Notable features delivered include UI Components Upgrade with Badge and Radio enhancements and 2FA UX improvements, plus the FF_AUTH_V2 feature flag to govern Email Settings behavior. Key quality improvements included validation for non-blank user names and robust handling of duplicate security keys, complemented by expanded end-to-end tests for 2FA. Infrastructure updates included a Terraform release bump (2.21.37). These efforts improve user experience, security, and reliability, reduce operational risk, and enable safer, faster feature rollouts. Technologies demonstrated include frontend React components, CSS regeneration, feature flags, Cypress-based E2E testing, and Terraform infrastructure management.
July 2025 monthly summary focused on delivering UI and security enhancements in notification-admin, strengthening testing coverage, and stabilizing infrastructure. Notable features delivered include UI Components Upgrade with Badge and Radio enhancements and 2FA UX improvements, plus the FF_AUTH_V2 feature flag to govern Email Settings behavior. Key quality improvements included validation for non-blank user names and robust handling of duplicate security keys, complemented by expanded end-to-end tests for 2FA. Infrastructure updates included a Terraform release bump (2.21.37). These efforts improve user experience, security, and reliability, reduce operational risk, and enable safer, faster feature rollouts. Technologies demonstrated include frontend React components, CSS regeneration, feature flags, Cypress-based E2E testing, and Terraform infrastructure management.
June 2025: Delivered observability, security hardening, CI upgrades, and testing reliability across notification services. Strengthened customer-facing reliability and internal tooling, enabling faster troubleshooting, safer CI workflows, and improved API accessibility for docs.
June 2025: Delivered observability, security hardening, CI upgrades, and testing reliability across notification services. Strengthened customer-facing reliability and internal tooling, enabling faster troubleshooting, safer CI workflows, and improved API accessibility for docs.
May 2025 monthly summary for the CDS Notification suite. The month focused on delivering business value through UX enhancements, security hardening, faster feedback loops for reporting, and infrastructure readiness across four repositories. Deliverables spanned customer-facing features, reliability improvements, and operational updates that reduce friction for users and improve platform stability.
May 2025 monthly summary for the CDS Notification suite. The month focused on delivering business value through UX enhancements, security hardening, faster feedback loops for reporting, and infrastructure readiness across four repositories. Deliverables spanned customer-facing features, reliability improvements, and operational updates that reduce friction for users and improve platform stability.
Concise month summary for 2025-04: Delivered user-centric features, stability fixes, and CI/CD improvements across notification-admin and notification-terraform, driving security, reliability, and operational insight. Key outcomes include improved authentication flows, enhanced government-domain deliverability, UI simplifications, automated testing, and performance instrumentation, plus infrastructure version alignment across repos.
Concise month summary for 2025-04: Delivered user-centric features, stability fixes, and CI/CD improvements across notification-admin and notification-terraform, driving security, reliability, and operational insight. Key outcomes include improved authentication flows, enhanced government-domain deliverability, UI simplifications, automated testing, and performance instrumentation, plus infrastructure version alignment across repos.
2025-03 highlights: Delivered observability enhancements for SMS/Email in the notification-terraform repo with CloudWatch dashboards and health widgets, and warning alarms to improve proactive monitoring. The initial observability work was rolled back after evaluation to align with release governance. Also released a version bump to v2.18.33 to update infra tagging. In notification-admin, improved accessibility by correcting the API Keys heading structure, fixed internal navigation routing for Terms of Use, and centralized Cypress test configuration to simplify environment setup. Documentation was updated with bilingual caretaker-period guidelines in README to inform users during caretaker windows. These efforts improve system visibility, accessibility, test reliability, and release governance, delivering clear business value with reduced MTTR and smoother onboarding for QA and security reviews.
2025-03 highlights: Delivered observability enhancements for SMS/Email in the notification-terraform repo with CloudWatch dashboards and health widgets, and warning alarms to improve proactive monitoring. The initial observability work was rolled back after evaluation to align with release governance. Also released a version bump to v2.18.33 to update infra tagging. In notification-admin, improved accessibility by correcting the API Keys heading structure, fixed internal navigation routing for Terms of Use, and centralized Cypress test configuration to simplify environment setup. Documentation was updated with bilingual caretaker-period guidelines in README to inform users during caretaker windows. These efforts improve system visibility, accessibility, test reliability, and release governance, delivering clear business value with reduced MTTR and smoother onboarding for QA and security reviews.
February 2025: Focused on reliability, performance, and data-driven insights across notification services and the admin UI. Delivered key features, fixed critical bugs, and strengthened testing and localization to improve operational efficiency and customer-facing consistency. Notable work includes ensuring Slack notifications are valid JSON in CI, enabling on-the-fly Font Awesome CSS generation, shipping the Caretaker Notice component with Storybook docs, enhancing Cypress CI with recordings and artifacts, and adding annual statistics via a Redis-backed API with dashboard support. Additional improvements included ephemeral UI testing accounts and targeted localization refinements to reduce user confusion.
February 2025: Focused on reliability, performance, and data-driven insights across notification services and the admin UI. Delivered key features, fixed critical bugs, and strengthened testing and localization to improve operational efficiency and customer-facing consistency. Notable work includes ensuring Slack notifications are valid JSON in CI, enabling on-the-fly Font Awesome CSS generation, shipping the Caretaker Notice component with Storybook docs, enhancing Cypress CI with recordings and artifacts, and adding annual statistics via a Redis-backed API with dashboard support. Additional improvements included ephemeral UI testing accounts and targeted localization refinements to reduce user confusion.
January 2025 monthly summary focused on stabilizing notification delivery, empowering admins, and tightening CI/CD alerting. Highlights across repositories include new admin-facing controls for sending domains via AWS SES, incremental infrastructure hygiene, improved test automation, and targeted fixes to ensure reliable Slack notifications and accurate auditing. Business value is reflected in safer configurations, reduced maintenance burden, and more trustworthy alerting and telemetry across the platform.
January 2025 monthly summary focused on stabilizing notification delivery, empowering admins, and tightening CI/CD alerting. Highlights across repositories include new admin-facing controls for sending domains via AWS SES, incremental infrastructure hygiene, improved test automation, and targeted fixes to ensure reliable Slack notifications and accurate auditing. Business value is reflected in safer configurations, reduced maintenance burden, and more trustworthy alerting and telemetry across the platform.
Monthly work summary for 2024-12 focusing on key accomplishments, major bug fixes, impact, and technical skills demonstrated. Business value prioritized through reliable governance of sending limits, robust error handling, and improved user communications across notification services.
Monthly work summary for 2024-12 focusing on key accomplishments, major bug fixes, impact, and technical skills demonstrated. Business value prioritized through reliable governance of sending limits, robust error handling, and improved user communications across notification services.
Monthly summary for 2024-11: Across cds-snc/notification-terraform, cds-snc/notification-api, and cds-snc/notification-admin, delivered security hardening, developer-experience improvements, and testability enhancements with governance controls. Key features delivered this month include: - Storybook access control via WAF by environment: restricts access to the /_storybook.* path to non-production environments by updating WAF rules, preventing exposure in production. Commits: f336d5639d8f18fa6998096aaed68d44a4bdb751. - Infra release version bumps (2.17.7 and 2.17.11): reflect patch/release updates in config (no functional code changes). Commits: 745a64450c9933c3b3c773cefe72e85040a215f4; 63d04f906de164b60940b6143e371dbd933723bf. - Devcontainer enhancement: Add dependi tool to Devcontainer for the notification-api development workflow (no functional app changes). Commit: 6bd7a653887ca880d5295cf87f506504aa5156a9. - Test user management for Cypress UI testing: Adds on-demand test user scaffolding with new API routes, authentication isolation from production, and relevant migrations/config updates. Commit: 9f30e3a6704d8daff53ec25ebe3c879ba78d8957. - Annual Usage Limits feature introduced with a feature flag (FF_ANNUAL_LIMIT) for dashboard and usage reports, including backend fetch/cache and frontend display (phased rollout). Commits: 00ecbe99839d3f59cf02ce30d2eb65b0dcd8930c; b7859811d8b57673e800cb87fa5cd816365a1f89; 9b682f1f873c421c7617d213cbfe4346a0b533e6.
Monthly summary for 2024-11: Across cds-snc/notification-terraform, cds-snc/notification-api, and cds-snc/notification-admin, delivered security hardening, developer-experience improvements, and testability enhancements with governance controls. Key features delivered this month include: - Storybook access control via WAF by environment: restricts access to the /_storybook.* path to non-production environments by updating WAF rules, preventing exposure in production. Commits: f336d5639d8f18fa6998096aaed68d44a4bdb751. - Infra release version bumps (2.17.7 and 2.17.11): reflect patch/release updates in config (no functional code changes). Commits: 745a64450c9933c3b3c773cefe72e85040a215f4; 63d04f906de164b60940b6143e371dbd933723bf. - Devcontainer enhancement: Add dependi tool to Devcontainer for the notification-api development workflow (no functional app changes). Commit: 6bd7a653887ca880d5295cf87f506504aa5156a9. - Test user management for Cypress UI testing: Adds on-demand test user scaffolding with new API routes, authentication isolation from production, and relevant migrations/config updates. Commit: 9f30e3a6704d8daff53ec25ebe3c879ba78d8957. - Annual Usage Limits feature introduced with a feature flag (FF_ANNUAL_LIMIT) for dashboard and usage reports, including backend fetch/cache and frontend display (phased rollout). Commits: 00ecbe99839d3f59cf02ce30d2eb65b0dcd8930c; b7859811d8b57673e800cb87fa5cd816365a1f89; 9b682f1f873c421c7617d213cbfe4346a0b533e6.
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