Afaan Ashiq engineered and maintained the UKHSA-Internal/data-dashboard-api and data-dashboard-infra repositories, delivering robust data dashboards and APIs for public health analytics. He architected scalable backend systems using Python, Django, and Terraform, focusing on secure infrastructure, efficient data ingestion, and modular API endpoints. His work included implementing advanced caching strategies with Redis, integrating RBAC for fine-grained data access, and automating CI/CD pipelines for reliable deployments. By enhancing data validation, observability, and infrastructure-as-code practices, Afaan improved system reliability and developer velocity. His technical depth is evident in the breadth of features, rigorous testing, and maintainable codebase supporting evolving business needs.
October 2025 delivered security-focused deployment improvements, data-quality enhancements, and reliability hardening across the UKHSA data-dashboard suite. Key outcomes include replacing long-lived PATs with ephemeral GitHub App tokens for cross-repo deployments, enabling faster diagnosis with enhanced ingestion validation error messages, expanding data validation to include Hepatitis-B, caching optimizations to boost Next.js performance, and stronger infra governance via CloudWatch Canary enhancements and staging parity. Business value: reduced security risk, improved data quality and reliability, faster incident resolution, and more scalable, predictable deployments across data-dashboard-api and data-dashboard-infra.
October 2025 delivered security-focused deployment improvements, data-quality enhancements, and reliability hardening across the UKHSA data-dashboard suite. Key outcomes include replacing long-lived PATs with ephemeral GitHub App tokens for cross-repo deployments, enabling faster diagnosis with enhanced ingestion validation error messages, expanding data validation to include Hepatitis-B, caching optimizations to boost Next.js performance, and stronger infra governance via CloudWatch Canary enhancements and staging parity. Business value: reduced security risk, improved data quality and reliability, faster incident resolution, and more scalable, predictable deployments across data-dashboard-api and data-dashboard-infra.
In Sep 2025, delivered a broad set of platform improvements across UKHSA-Internal/data-dashboard-infra and UKHSA-Internal/data-dashboard-api, driving cost efficiency, security, reliability, and developer velocity. The work combined infrastructure as code, security hardening, data access enhancements, and monitoring improvements to support scalable dashboards and APIs for business users.
In Sep 2025, delivered a broad set of platform improvements across UKHSA-Internal/data-dashboard-infra and UKHSA-Internal/data-dashboard-api, driving cost efficiency, security, reliability, and developer velocity. The work combined infrastructure as code, security hardening, data access enhancements, and monitoring improvements to support scalable dashboards and APIs for business users.
August 2025 performance highlights: Delivered critical Geography Relationships capability in the UKHSA data-dashboard-api, enabling upstream geography relationships across UTLA, Region, and Nation with a new relationships field, supporting utilities (get_geography_code_for_geography), tests, error handling, and type hints. Implemented immunisation naming consistency (immunisations -> immunisation), and completed type hinting and method decomposition for core APIs to improve maintainability. Expanded test coverage for new datasets (COVER, MMR1, 6-in-1) and updated tests to align with immunisation terminology, with comprehensive documentation and code quality improvements. In data-dashboard-infra, strengthened CI/CD resilience, test-environment deployment, and infrastructure controls (IP allow lists, CloudFront caching), while enabling CMS pages with large field counts. Overall, these changes improved data accuracy, readability, test coverage, and deployment reliability, delivering business value through faster iteration, robust deployments, and clearer, maintainable code.
August 2025 performance highlights: Delivered critical Geography Relationships capability in the UKHSA data-dashboard-api, enabling upstream geography relationships across UTLA, Region, and Nation with a new relationships field, supporting utilities (get_geography_code_for_geography), tests, error handling, and type hints. Implemented immunisation naming consistency (immunisations -> immunisation), and completed type hinting and method decomposition for core APIs to improve maintainability. Expanded test coverage for new datasets (COVER, MMR1, 6-in-1) and updated tests to align with immunisation terminology, with comprehensive documentation and code quality improvements. In data-dashboard-infra, strengthened CI/CD resilience, test-environment deployment, and infrastructure controls (IP allow lists, CloudFront caching), while enabling CMS pages with large field counts. Overall, these changes improved data accuracy, readability, test coverage, and deployment reliability, delivering business value through faster iteration, robust deployments, and clearer, maintainable code.
July 2025 monthly summary for UKHSA development teams focusing on delivering maintainable, scalable features and improving data quality across the data-dashboard-api and data-dashboard-infra. The month emphasized architectural refinement, expanded data filtering capabilities, API modernization (geographies v3, Maps v1), and robust caching strategies to boost performance and reliability.
July 2025 monthly summary for UKHSA development teams focusing on delivering maintainable, scalable features and improving data quality across the data-dashboard-api and data-dashboard-infra. The month emphasized architectural refinement, expanded data filtering capabilities, API modernization (geographies v3, Maps v1), and robust caching strategies to boost performance and reliability.
June 2025 performance summary for UKHSA data-dashboard initiatives (infra and API). Focused on security/testing readiness, analytics capabilities, frontend authentication enablement, data lifecycle improvements, and CI/CD/infrastructure stabilization. Deliverables span infrastructure access controls, dual-category charts support, frontend environment variable enablement, ingest lifecycle optimization, and stabilized deployment pipelines with version pinning and PoC readiness.
June 2025 performance summary for UKHSA data-dashboard initiatives (infra and API). Focused on security/testing readiness, analytics capabilities, frontend authentication enablement, data lifecycle improvements, and CI/CD/infrastructure stabilization. Deliverables span infrastructure access controls, dual-category charts support, frontend environment variable enablement, ingest lifecycle optimization, and stabilized deployment pipelines with version pinning and PoC readiness.
May 2025 monthly summary for UKHSA-Internal data dashboard teams. Focused on reliability, security, and scalability across data-dashboard-api and data-dashboard-infra. Key features delivered include increased resilience for long-running data fetches, RBAC-protected non-public data access testing, test-suite maintenance and cleanup, and robust data archival workflows. Infra improvements covered access controls, provider configuration, cache management, and ECS-based workload orchestration to enable secure, scalable deployments.
May 2025 monthly summary for UKHSA-Internal data dashboard teams. Focused on reliability, security, and scalability across data-dashboard-api and data-dashboard-infra. Key features delivered include increased resilience for long-running data fetches, RBAC-protected non-public data access testing, test-suite maintenance and cleanup, and robust data archival workflows. Infra improvements covered access controls, provider configuration, cache management, and ECS-based workload orchestration to enable secure, scalable deployments.
April 2025 delivered secure, scalable enhancements across data-dashboard-infra and data-dashboard-api, focusing on security, deployment tooling, data access controls, and performance optimizations. The month included cross-account IAM enhancements, robust Dev/Auth environment tooling, env/config parity updates, RBAC and public/private data filtering improvements, and API security hardening, enabling faster, safer delivery and better data governance for stakeholders.
April 2025 delivered secure, scalable enhancements across data-dashboard-infra and data-dashboard-api, focusing on security, deployment tooling, data access controls, and performance optimizations. The month included cross-account IAM enhancements, robust Dev/Auth environment tooling, env/config parity updates, RBAC and public/private data filtering improvements, and API security hardening, enabling faster, safer delivery and better data governance for stakeholders.
March 2025 monthly summary focusing on key features delivered, critical bug fixes, and overall impact. Delivered substantive data pipeline and infrastructure improvements across two repositories, strengthening data quality, deployment reliability, and security posture while enabling non-public auth environments for production readiness. The work spanned data ingestion enhancements, UI/page migration, rigorous validation, codebase cleanup, and extensive CD/infra automation for Auth-enabled deployments.
March 2025 monthly summary focusing on key features delivered, critical bug fixes, and overall impact. Delivered substantive data pipeline and infrastructure improvements across two repositories, strengthening data quality, deployment reliability, and security posture while enabling non-public auth environments for production readiness. The work spanned data ingestion enhancements, UI/page migration, rigorous validation, codebase cleanup, and extensive CD/infra automation for Auth-enabled deployments.
February 2025: Drove significant API and infra improvements across UKHSA-Internal/data-dashboard-api and -infra. Delivered enhanced test data suite and Wagtail v6.4 test adjustments to improve test reliability; hardened data validation for geography, and tightened unique constraints for Topic/SubTheme, reinforcing data integrity. Added new contact.sub_theme field for mpox-clade-1b to enable better categorization and filtering for analytics. Implemented infra-level and CI enhancements: ingestion image separation, ECS image refresh after ECR population, ARM64 CI runners with Docker on runners, and other CI optimizations, accelerating deployments and reducing runtime. Cleaned up dependencies by removing psycopg2, and implemented robust error propagation and code quality improvements with Ruff and flake8-bugbear integration. Also increased security and operational hygiene by removing temporary auth envs, standardizing IP allow lists, and removing leaked IPs. These efforts deliver faster, more reliable dashboards, improved data governance, and a foundation for scalable future changes.
February 2025: Drove significant API and infra improvements across UKHSA-Internal/data-dashboard-api and -infra. Delivered enhanced test data suite and Wagtail v6.4 test adjustments to improve test reliability; hardened data validation for geography, and tightened unique constraints for Topic/SubTheme, reinforcing data integrity. Added new contact.sub_theme field for mpox-clade-1b to enable better categorization and filtering for analytics. Implemented infra-level and CI enhancements: ingestion image separation, ECS image refresh after ECR population, ARM64 CI runners with Docker on runners, and other CI optimizations, accelerating deployments and reducing runtime. Cleaned up dependencies by removing psycopg2, and implemented robust error propagation and code quality improvements with Ruff and flake8-bugbear integration. Also increased security and operational hygiene by removing temporary auth envs, standardizing IP allow lists, and removing leaked IPs. These efforts deliver faster, more reliable dashboards, improved data governance, and a foundation for scalable future changes.
January 2025 performance summary: Delivered security hardening, reliability improvements, and automation across UKHSA-Internal/data-dashboard-infra and data-dashboard-api, translating into reduced risk, faster deployments, and improved customer outcomes. Major features include network isolation for alarm notifications, proactive infrastructure stabilization with Terraform, and email deliverability enhancements via mail-from domain and SPF/DNS improvements, along with broader CI/CD and environment provisioning enhancements. Key bug fixes reduced exposure of credentials and improved test/deploy reliability. This work established a robust foundation for continued feature delivery with stronger security, scalable deployments, and maintainable configurations.
January 2025 performance summary: Delivered security hardening, reliability improvements, and automation across UKHSA-Internal/data-dashboard-infra and data-dashboard-api, translating into reduced risk, faster deployments, and improved customer outcomes. Major features include network isolation for alarm notifications, proactive infrastructure stabilization with Terraform, and email deliverability enhancements via mail-from domain and SPF/DNS improvements, along with broader CI/CD and environment provisioning enhancements. Key bug fixes reduced exposure of credentials and improved test/deploy reliability. This work established a robust foundation for continued feature delivery with stronger security, scalable deployments, and maintainable configurations.
December 2024 — Key features delivered: - ETL pipeline enablement across dpd dev, staging, prod in UKHSA-Internal/data-dashboard-infra (commits f2f7671cc4548ec1019f750be37a66a8e99d8b57; 5b3df4ccf0615a55c9bd70b2cce1a2d0e4561e7e; be80384377cd0b4c0d4e21420889a7a388588489). - Domain-based SES email identity and DNS configuration for domain-based sender identity and feedback API integration (commits f3777a33188995857425a01887752fa30dbad842; f9178788ed820a4d3f17bc435ed46ae1496b57e4; 95eb6926fab1ec22e3d135d41589b3ca3d8db191; be8e580f82d681583ceefdde24545caa43342b33; 9bd7930a67db90ea2bd25137e2a93dd117400ac3; e895f98424ccd90e9fea116d95292384af341d22; 334a2a1d2a3986612608ee32676cf8db3773e491). - Dev-only accessibility and security hardening: restricting access to dev environments; overnight ECS shutdown policy; container filesystem hardening with read-only backends; and deletion protection for prod-grade feature flag databases (commits f5e13ff3c6ff40a0f123334c036a856ca1f76154; e6bc30c3920965aca5ac8e6c1e8cd8d7458ef5fc; d9f2a882b964c92625e205cae002fe3d7d1b4c42; 6318d73ae9a551f90c58ed1d8efc98cc863d92b5). - Observability and governance enhancements: centralized PostgreSQL logging to CloudWatch; default CODEOWNERS for data-dashboard; team/name updates; restart of Feedback API on DB password rotation; and comprehensive test updates (commits 10ce54afc56acfced542cf5f38f5bb2d196a9f33; d48509b368e15247bb4e44c480f4e94ea908ebaf; 78f8ad3af81f024e19c3dc254cbca09119a013bf; 244cce65702ef62b6b94e9b5ee193510d29b963e; 62fa94d4af3201929ffe86576a1d1bfc6d393d8b). - API/Charts enhancements: geographies API ordering, SES-based CMS/form routing, axis titles support and defaults, test scaffolding and fixtures improvements, and chart axis title enhancements (commits 8927a55ad102974a7ee752b868db9504238edfcb; 74d802f07f2fe7bd429fc82a5650a43742caf0ef; c153767b643687c84445c4444b558d3444c4ebdf; e0cc771f31feffa91f5d3de55b20a21459c31bd2; 02c8a88d28c62a7ceabf008f6f7dd09441e9a1f2; 872114c6675c58fb60215a34a4b42cd0bb39fead; cb2423e37ccd9d350aefd25d29a4dfbbf29a44a4; e50adcc8b298669457b4a0f28f9f47150927c9b5). - Additional improvements: test coverage improvements, test fixtures fixes, and accessibility enhancements (commits 479... see list in provided data).
December 2024 — Key features delivered: - ETL pipeline enablement across dpd dev, staging, prod in UKHSA-Internal/data-dashboard-infra (commits f2f7671cc4548ec1019f750be37a66a8e99d8b57; 5b3df4ccf0615a55c9bd70b2cce1a2d0e4561e7e; be80384377cd0b4c0d4e21420889a7a388588489). - Domain-based SES email identity and DNS configuration for domain-based sender identity and feedback API integration (commits f3777a33188995857425a01887752fa30dbad842; f9178788ed820a4d3f17bc435ed46ae1496b57e4; 95eb6926fab1ec22e3d135d41589b3ca3d8db191; be8e580f82d681583ceefdde24545caa43342b33; 9bd7930a67db90ea2bd25137e2a93dd117400ac3; e895f98424ccd90e9fea116d95292384af341d22; 334a2a1d2a3986612608ee32676cf8db3773e491). - Dev-only accessibility and security hardening: restricting access to dev environments; overnight ECS shutdown policy; container filesystem hardening with read-only backends; and deletion protection for prod-grade feature flag databases (commits f5e13ff3c6ff40a0f123334c036a856ca1f76154; e6bc30c3920965aca5ac8e6c1e8cd8d7458ef5fc; d9f2a882b964c92625e205cae002fe3d7d1b4c42; 6318d73ae9a551f90c58ed1d8efc98cc863d92b5). - Observability and governance enhancements: centralized PostgreSQL logging to CloudWatch; default CODEOWNERS for data-dashboard; team/name updates; restart of Feedback API on DB password rotation; and comprehensive test updates (commits 10ce54afc56acfced542cf5f38f5bb2d196a9f33; d48509b368e15247bb4e44c480f4e94ea908ebaf; 78f8ad3af81f024e19c3dc254cbca09119a013bf; 244cce65702ef62b6b94e9b5ee193510d29b963e; 62fa94d4af3201929ffe86576a1d1bfc6d393d8b). - API/Charts enhancements: geographies API ordering, SES-based CMS/form routing, axis titles support and defaults, test scaffolding and fixtures improvements, and chart axis title enhancements (commits 8927a55ad102974a7ee752b868db9504238edfcb; 74d802f07f2fe7bd429fc82a5650a43742caf0ef; c153767b643687c84445c4444b558d3444c4ebdf; e0cc771f31feffa91f5d3de55b20a21459c31bd2; 02c8a88d28c62a7ceabf008f6f7dd09441e9a1f2; 872114c6675c58fb60215a34a4b42cd0bb39fead; cb2423e37ccd9d350aefd25d29a4dfbbf29a44a4; e50adcc8b298669457b4a0f28f9f47150927c9b5). - Additional improvements: test coverage improvements, test fixtures fixes, and accessibility enhancements (commits 479... see list in provided data).
November 2024 monthly summary highlighting security hardening, network isolation, and improved observability across data-dashboard-infra and data-dashboard-api. Delivered key features enabling ECS/KMS access, internal load balancing, and DB connectivity, while reducing risk with egress rule removal and pen-test IP hardening. Notable CI/CD and ETL workflow optimizations improved release reliability and cross-account governance.
November 2024 monthly summary highlighting security hardening, network isolation, and improved observability across data-dashboard-infra and data-dashboard-api. Delivered key features enabling ECS/KMS access, internal load balancing, and DB connectivity, while reducing risk with egress rule removal and pen-test IP hardening. Notable CI/CD and ETL workflow optimizations improved release reliability and cross-account governance.
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