UKHSA-Internal/data-dashboard-infra
Jan 2025 – Mar 2025
3 Months active
Languages Used
HCLJavaScriptTerraformBashShell
Technical Skills
API GatewayAWSAWS CognitoAWS LambdaBackend DevelopmentCloud Computing
Christian Martin
PROFILE
Christian Martin
Christian Martin developed a robust authentication and infrastructure foundation for the UKHSA-Internal/data-dashboard-infra repository, focusing on secure, scalable access control. Over three months, he engineered a modular AWS Cognito-based authentication system integrated with API Gateway, leveraging Terraform for infrastructure as code and automating secret management with AWS Secrets Manager. His work included refactoring authentication flows to verify JWTs, enhancing logging and observability, and implementing granular IAM policies for improved security. Christian also introduced environment-specific configurations and integrated Microsoft Graph API for group management. Using JavaScript, Terraform, and AWS Lambda, he delivered maintainable, security-focused solutions that improved operational reliability and governance.
Overall Statistics
Feature vs Bugs
86%Features
Repository Contributions
51Total
Bugs
2
Commits
51
Features
12
Lines of code
5,450
Activity Months3
Your Network
192 people
Work History
March 2025
22 Commits • 7 Features
Mar 1, 2025March 2025 performance summary for UKHSA-Internal/data-dashboard-infra. Delivered a security-focused Cognito and Secrets Management overhaul that improves authentication reliability and secret lifecycle governance. Refactored to reuse the existing secret store, removed redundant secrets, and moved the ukhsa tenant id to a dedicated secret with lifecycle blocks. Updated authentication flow to verify Cognito JWTs and switched the authentication endpoint to Cognito, complemented by IAM and Lambda hardening (kms:Decrypt access). Cleaned Cognito email handling and removed Terraform outputs, and modernized the Auth Lambda and tests for maintainability. Introduced a Graph API-based flow to map group IDs to names, with a controlled rollback to hardcoded group IDs during transition to stabilize releases. Reverts and testing adjustments were completed to ensure release quality and alignment with updated testing approaches.
22 Commits • 7 Features
Mar 1, 2025March 2025 performance summary for UKHSA-Internal/data-dashboard-infra. Delivered a security-focused Cognito and Secrets Management overhaul that improves authentication reliability and secret lifecycle governance. Refactored to reuse the existing secret store, removed redundant secrets, and moved the ukhsa tenant id to a dedicated secret with lifecycle blocks. Updated authentication flow to verify Cognito JWTs and switched the authentication endpoint to Cognito, complemented by IAM and Lambda hardening (kms:Decrypt access). Cleaned Cognito email handling and removed Terraform outputs, and modernized the Auth Lambda and tests for maintainability. Introduced a Graph API-based flow to map group IDs to names, with a controlled rollback to hardcoded group IDs during transition to stabilize releases. Reverts and testing adjustments were completed to ensure release quality and alignment with updated testing approaches.
March 2025
February 2025
15 Commits • 4 Features
Feb 1, 2025February 2025: Strengthened tagging governance, authentication reliability, modular infrastructure, and environment-specific configuration for UKHSA-Internal/data-dashboard-infra, delivering security, observability, and operational efficiency gains. Implemented granular AWS tagging, hardened Cognito auth with Secrets Manager integration and improved logging, modularized API Gateway/SNS infrastructure with version pinning, and added dev/test authentication variables. Also addressed resilience improvements for missing OIDC secrets and JWT handling.
February 2025
15 Commits • 4 Features
Feb 1, 2025February 2025: Strengthened tagging governance, authentication reliability, modular infrastructure, and environment-specific configuration for UKHSA-Internal/data-dashboard-infra, delivering security, observability, and operational efficiency gains. Implemented granular AWS tagging, hardened Cognito auth with Secrets Manager integration and improved logging, modularized API Gateway/SNS infrastructure with version pinning, and added dev/test authentication variables. Also addressed resilience improvements for missing OIDC secrets and JWT handling.
January 2025
14 Commits • 1 Features
Jan 1, 2025January 2025 monthly summary for UKHSA-Internal/data-dashboard-infra focusing on delivering a robust authentication foundation and Terraform-driven infrastructure for scalable access control, with early-stage identity provider readiness and enhanced observability. The work enables secure API access via Cognito + API Gateway and sets the groundwork for future identity provider integrations.
14 Commits • 1 Features
Jan 1, 2025January 2025 monthly summary for UKHSA-Internal/data-dashboard-infra focusing on delivering a robust authentication foundation and Terraform-driven infrastructure for scalable access control, with early-stage identity provider readiness and enhanced observability. The work enables secure API access via Cognito + API Gateway and sets the groundwork for future identity provider integrations.
January 2025
Activity
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Quality Metrics
Correctness90.0%
Maintainability88.4%
Architecture88.4%
Performance82.4%
AI Usage20.8%
Skills & Technologies
Programming Languages
BashHCLJavaScriptShellTerraform
Technical Skills
API GatewayAWSAWS CognitoAWS ECSAWS LambdaAWS Secrets ManagerAzure ADBackend DevelopmentCI/CDCloud ComputingCloud InfrastructureCognitoDevOpsEnvironment VariablesIAM
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline