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Keir Williams

PROFILE

Keir Williams

Keir Williams engineered and maintained core infrastructure for the ministryofjustice/modernisation-platform, delivering features such as secure SSO integration via Entra ID, production-grade email notifications using AWS SES, and automated alerting with PagerDuty for both Azure and AWS Health events. He applied Infrastructure as Code principles with Terraform and HCL, emphasizing maintainability and traceability through modular design and clear commit history. His work included refactoring configuration management, implementing environment-specific governance, and managing provider compatibility to ensure deployment stability. Keir’s contributions addressed operational risk, streamlined access control, and improved incident response, demonstrating depth in DevOps, cloud engineering, and identity management.

Overall Statistics

Feature vs Bugs

80%Features

Repository Contributions

13Total
Bugs
2
Commits
13
Features
8
Lines of code
292
Activity Months7

Work History

June 2025

1 Commits

Jun 1, 2025

Month: 2025-06 — Monthly summary for the Ministry of Justice modernisation platform environments. Focused on stability and provider compatibility to safeguard deployment pipelines. Restored AWS provider version 5.99.0 support by reverting a prior exclusion, ensuring continued access to provider capabilities and avoiding deployment regressions.

May 2025

4 Commits • 2 Features

May 1, 2025

Monthly summary for May 2025 focused on improving configuration management, policy governance, and platform stability in ministryofjustice/modernisation-platform-environments. Delivered centralized uplift bucket configurations by moving from a shared environment file to a dedicated database module, enhancing organization and maintainability. Executed policy governance changes for password policy: enabling case sensitivity in PWM configuration followed by a rollback to minimize long-term impact. Stabilized operations by temporarily excluding Terraform AWS provider version 5.99.0 to work around a known issue, preserving release stability and reducing risk. These efforts collectively improve traceability, risk management, and readiness for future enhancements.

April 2025

1 Commits • 1 Features

Apr 1, 2025

In April 2025, delivered critical infrastructure for Delius Core data migration uplift by provisioning a dedicated S3 bucket (db-uplift) using the modernisation-platform-terraform-s3-bucket module. Implemented environment-specific governance and cost-tracking through targeted tags, aligning with platform standards. No major bugs reported; laid groundwork for upcoming migration activities. This work supports faster data uplift while improving governance, cost visibility, and alignment with platform roadmaps.

March 2025

2 Commits • 2 Features

Mar 1, 2025

March 2025 monthly summary: Key features delivered across two repositories, focusing on modernization platform automation and proactive incident response. Major work included upgrading dependencies to current versions and enabling AWS Health-based alerting to PagerDuty. No distinct major bugs were reported this period; improvements emphasize reliability, scalability, and faster issue remediation through automated notifications.

February 2025

3 Commits • 1 Features

Feb 1, 2025

February 2025: Focused on delivering production-grade email notifications for DSO via AWS SES (SMTP) with strong security controls and centralized data references. Implemented end-to-end SES-based delivery, domain verification, DKIM, and an SES SMTP user, while centralizing Route 53 zone information via the baseline module and hardening the configuration with refined IAM policies and secure KMS-backed parameter storage. Refactored data queries to use module references and resolved static analysis warnings to improve CI health and maintainability.

January 2025

1 Commits • 1 Features

Jan 1, 2025

January 2025 monthly summary for ministryofjustice/modernisation-platform focusing on delivering a secure SSO integration for nomis-access via Entra ID. The work centralized authentication by introducing an Entra group, enabling streamlined access control and reduced onboarding friction.

November 2024

1 Commits • 1 Features

Nov 1, 2024

Month: 2024-11 — ministryofjustice/modernisation-platform: Implemented PagerDuty integration for Azure alerts in development and test environments, improving alert routing and incident response. No major bugs reported; stability maintained. Technologies demonstrated include Azure Alerts, PagerDuty integration, environment-specific routing, and commit-based traceability.

Activity

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Quality Metrics

Correctness90.8%
Maintainability97.0%
Architecture92.4%
Performance92.2%
AI Usage20.0%

Skills & Technologies

Programming Languages

HCLTerraformXMLYAML

Technical Skills

AWSAlertingAnsibleCloudCloud EngineeringCloud InfrastructureDevOpsEmail ServicesEvent-Driven ArchitectureIdentity and Access ManagementInfrastructure as CodeMonitoringTerraform

Repositories Contributed To

3 repos

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

ministryofjustice/modernisation-platform-environments

Feb 2025 Jun 2025
5 Months active

Languages Used

HCLTerraformXML

Technical Skills

AWSCloudCloud EngineeringDevOpsEmail ServicesTerraform

ministryofjustice/modernisation-platform

Nov 2024 Jan 2025
2 Months active

Languages Used

Terraform

Technical Skills

DevOpsInfrastructure as CodeCloud InfrastructureIdentity and Access Management

ministryofjustice/modernisation-platform-configuration-management

Mar 2025 Mar 2025
1 Month active

Languages Used

YAML

Technical Skills

Ansible

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