April 2026 monthly summary: delivered two high-impact capabilities in the epb-aws-infrastructure repo that improve user experience, observability, and incident response. Focused on tailoring notifications by property type and enhancing Lambda failure alerting to Slack, supported by CloudWatch monitoring.

March 2026 monthly review for Communities UK: Delivered security-first infrastructure improvements and data quality enhancements across epb-aws-infrastructure and epb-data-warehouse, enabling stronger data protection, clearer operational communication, and more reliable reporting. Key features include KMS-based security enhancements for the Data Frontend and inter-service communications, SNS-SQS encryption with dedicated KMS keys and policy refinements, and a refactor of the data frontend delivery path for better modularity. Expanded notification capabilities with Enhanced Email Notifications including a Request Summary, providing date/time and efficiency metrics for improved stakeholder visibility. Robustness improvements add default energy ratings when input data is null, reducing data handling errors in energy data collection. In the data warehouse, the Domestic views architecture was cleaned up by removing embedded JSON values and aligning fixtures (RdSAP 21.0.1) to improve data integrity and query performance. Audit logs were integrated into assessment views to improve reporting accuracy, with yesterday’s updates properly reflected, and a timestamp filter fix ensuring yesterday data is reliably captured across Non-Domestic and Display views. Overall this work strengthens security, data quality, and analytical reliability while enabling scalable, maintainable data pipelines.

February 2026 Monthly Summary: Focused on data accuracy, performance, and security improvements across the data warehouse and AWS infrastructure. Delivered new year-specific data export view, caching controls for headers policy, ensured yearly data coverage in ETL, and enhanced security with KMS-backed DynamoDB encryption. All changes accompanied by tests to prevent regressions and verify configurations. These updates collectively improve data reliability, caching performance, regulatory compliance, and operational efficiency.

January 2026 monthly summary for communitiesuk/epb-data-warehouse: Focused on data hygiene, governance, and API consistency. Delivered a controlled SAP-Schema-15.0 data cleanup by introducing a rake-based deletion workflow, replacing ad-hoc deletions; updated schema versions and implemented reversible migrations to ensure data integrity and auditable processes. Standardized API parameter naming from schema_version to schemaVersion across the codebase and docs (OD-334). Reverted unsafe migrations related to SAP-Schema-15.0 (OD-326) and adopted a safe, auditable cleanup approach. Added a dedicated rake task to delete SAP 15.0 certificates from assessment_search to consolidate cleanup operations. Overall impact includes improved data relevance, safer cleanup workflows, auditable processes, and clearer API contracts.

December 2025 performance summary: Delivered substantial improvements in DEC data API, reporting, and data ingestion across epb-data-warehouse and epb-aws-infrastructure. Implemented non-domestic energy assessments (DEC) API enhancements, added new endpoints and views, and aligned terminology to 'certificate', enabling accurate, auditable reporting. Introduced DEC-specific ETL ingestion into the data warehouse, strengthening end-to-end data processing for DEC data. Improved internal build and test reliability with cache-clearing strategies, reduced redundant installs, and lint/test fixes, reducing CI noise and speeding validation. These changes together enhanced data fidelity, governance, and business reporting capabilities, while maintaining high-quality test coverage and faster release cycles.

November 2025 delivered substantial data platform enhancements across the EPB data warehouse and AWS infrastructure, focusing on robust data modeling, schema evolution, and operational reliability. Key work spanned domestic energy data modeling and reporting improvements, SAP compatibility updates, DEC data integration, and automated ETL/delivery pipelines, supported by targeted tests and proactive monitoring. Key outcomes: - Data modeling and reporting: Strengthened domestic energy data model, materialized views, and reporting layers; aligned with assessment_search data, SAP schema compatibility, and enhanced extraction accuracy. - Schema evolution automation: Dynamic Iceberg-PostgreSQL synchronization enabling automatic catalog updates when MVW schema changes, reducing manual effort and risk. - Operational resilience: Slack-based alerts for Glue ETL failures to accelerate incident response. - DEC data pipelines: New ETL jobs for DEC data population, insertion, and export, with catalog population and year-based exports. - Quality and stability: Added focused tests (including sum_attribute_values) and fixed critical data-point issues to ensure reliable production data.

October 2025 monthly summary for developer work across repositories. This period focused on delivering high-value features for data warehousing and strengthening cloud infrastructure and documentation pipelines, with emphasis on data integrity, automation, and developer experience.

September 2025 performance summary across the epb-aws-infrastructure and epb-data-warehouse repositories, focusing on end-to-end data platform enhancements, improved export and delivery workflows, expanded data views and search capabilities, and strengthened testing. The work delivered notable business value by consolidating data pipelines, enabling reliable yearly exports, and improving data accessibility for commercial catalogs and EPC datasets.

Summary for 2025-08: Focused on enhancing auditability, data access, and security across the EPB stack. Delivered robust audit logs APIs and retrieval, standardized domestic search data model, extended S3 file metadata and domestic CSV access, and hardened infrastructure with a DynamoDB credentials store and VPC-based access controls. All changes include tests and documentation updates to ensure reliability and maintainability.

July 2025 performance summary for communitiesuk/epb-data-warehouse: Delivered three core features that strengthen data integrity, reporting precision, and auditability. Implemented targeted data-model enhancements across assessments, SAP, and lighting domains, and introduced a robust audit-logging retrieval use case. These changes enable more reliable business insights, faster data access, and improved compliance.

June 2025 performance summary for the epb-data-warehouse: delivered critical yesterday-data export capability, advanced search enhancements with energy-tariff support and materialized views, and a migration fix to stabilize search overrides. Focused on delivering business value through accurate data export, faster and more reliable searches, and resilient schema migrations.

May 2025 monthly summary for communitiesuk/epb-aws-infrastructure. Delivered reliability and security-focused infrastructure enhancements, including a robust S3 export workflow and OneLogin authentication integration. Emphasis on scalable, maintainable improvements to support growing data export needs and secure access.

April 2025 performance highlights: Delivered end-to-end user data export and notification pipeline, enhanced data accessibility with a direct frontend download URL, and implemented robust error handling for key endpoints. These initiatives improved data availability, user experience, and system reliability across the EPB platforms (AWS infrastructure and data warehouse).

March 2025 performance summary focused on scalable data export and enhanced search capabilities across two repositories. Delivered automated yearly data export and improved data retrieval/modeling for property searches, driving faster insights and reduced maintenance overhead.

February 2025: Delivered read-optimized DWH scheduled task path by routing reads to the reader DB connection through an updated DATABASE_URL. This change reduces load on the primary DB, improves read throughput for DWH tasks, and enhances overall data pipeline scalability. The modification is isolated to environment configuration for the DWH tasks and does not affect write paths. All work is tracked under OD-70 with commit 4431b77e5ffe0177fc6d13c217d5f2eac2d90419. Demonstrated proficiency in infrastructure as code, DB connectivity management, and performance-focused engineering.

January 2025 monthly summary for communitiesuk/epb-data-warehouse: Key features delivered include RdSAP data support in the domestic search data model with council_id included in the mvw_domestic_search, England & Wales construction_age_band standardization (with Scotland and Northern Ireland excluded in lookups) and updated unit tests, and enrichment/cleanup of the domestic search gateway test data (expanded attributes, added energy-related fields, and mains_gas_flag) with duplicate removal. Major bugs fixed include RdSAP data handling improvements in domestic search mvw tests (OD-19), a migration path for domestic search and council_id (OD-51), and deduplication cleanup in mvw tests; construction_age_band formatting adjustments (OD-43) were also applied. Overall impact: enhanced data completeness and accuracy for domestic energy analytics, simplified regional data governance, and stronger test coverage that improves CI reliability and release confidence. Technologies/skills demonstrated: data modeling and schema evolution, materialized view (MVW) design and optimization, data migrations, SQL/data engineering, and test-data engineering across unit/integration tests.

December 2024 monthly summary for the EPB Data Warehouse workstream, focused on delivering robust data import capabilities and deterministic data access paths in the communitiesuk/epb-data-warehouse repository. Key improvements include strengthened test coverage for SAP schema version handling and enhanced filtering with deterministic ordering in the Domestic Search Gateway. The work delivers tangible business value through more reliable data imports, reproducible query results, and improved maintainability.