August 2025: Strengthened repository governance in NHSDigital/nhs-notify-sms-nudge by fixing CODEOWNERS default owner group to ensure correct team ownership and approval routing; this directly reduces misrouted reviews and accelerates PR cycles. Change tracked under CCM-11730 with commit 72c456c942e6f28d99fa1d4d404f97081f32c54f.

In July 2025, delivered a foundational serverless architecture overhaul for NHSDigital/nhs-notify-sms-nudge, establishing a scalable, testable Lambda-based workflow and enabling faster, safer deployments. The work focuses on standardizing Lambda development, improving testability, and strengthening build quality gates to reduce production risk and accelerate feature delivery.

June 2025 monthly summary for NHSDigital/nhs-notify-sms-nudge focused on delivering a foundational SMS Nudge infrastructure, hardening event-driven processing, and stabilizing ongoing operations. Key work established a scalable, observable component with Terraform-based resource provisioning, robust CI/CD, and governance improvements, enabling faster, safer feature delivery and reduced operational toil. Impact at a glance: - Foundational SMS Nudge infrastructure deployed (Lambdas, SQS, CloudWatch alarms) with CI/CD workflows to support rapid, reliable deployments. - Event-driven architecture hardened (inbound/outbound CloudWatch Event Rules, event bus integration) with portability enhancements for multi-environment usage. - Governance and runtime hygiene improved (CODEOWNERS, naming conventions, Node.js runtimes, account group mappings) to simplify administration and compliance. - CI/CD reliability addressed through Git workflow fixes, reducing release friction and boosting deployment confidence. Technologies/skills demonstrated include Terraform, AWS Lambda, SQS, CloudWatch, EventBridge/Rules, Event Bus, Node.js runtimes, and modern CI/CD practices.

April 2025 monthly summary: Implemented governance-driven ownership changes for nhs-notify-iam-webauth infrastructure code, updating CODEOWNERS to assign the /infrastructure/terraform/ directory to the nhs-notify-platform team. This enhances review efficiency and accountability, supported by CCM-9063 Mandatory Platform Review.

March 2025 performance summary: Centralized observability enhancements across NHS Notify repositories focusing on AWS backup and CloudWatch alert workflows. Delivered a central observability event bus integration for AWS Backup and CloudWatch alerts in nhs-notify-web-gateway, including event rules, IAM configuration, Grafana integration using the correct event bus ARN, and removal of the legacy backup error forwarding rule to consolidate monitoring. In nhs-notify-iam-webauth, introduced centralized observability via CloudWatch events and standardized IAM naming to align with observability conventions. These changes provide a single source of truth for backup and alarm state changes, improved alert routing and dashboards, standardized access controls, and faster incident response. Technologies demonstrated include AWS CloudWatch Events/EventBridge, IAM, Grafana integration, and observability-driven architecture.

February 2025 monthly summary: Delivered governance-first deployment improvements and cross-account observability enhancements across NHSDigital's NHS Notify platform. Implemented a unified 'Only Deploy on Merge' policy to gate main branch deployments behind PR merges or explicit workflow_dispatch, across the web template management, IAM webauth, and web gateway repos. Consolidated deployment safety logic by removing the legacy pr_merge workflow and aligning triggers to PR-closed events, reducing risk of accidental releases. Added Grafana cross-account access via Terraform, creating an IAM role with assume-role policy and attaching CloudWatchReadOnlyAccess to enable centralized monitoring from the Grafana host account. Introduced an observability account ID variable to support cross-account configurations. Skills demonstrated include GitHub Actions automation, Terraform IaC, IAM policy design, and cross-account security/governance. Business value: improved release predictability, reduced blast radius from misconfigurations, and strengthened end-to-end observability.