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Calum Rees

PROFILE

Calum Rees

Calum Rees engineered robust deployment automation, security, and monitoring solutions across the SkillsFundingAgency’s das-apim-endpoints and related repositories. He delivered features such as configurable Application Insights integration, dynamic data-loss blocking, and subnet-based firewall rules, using technologies like Azure Pipelines, Terraform, and C#. Calum standardized CI/CD pipelines, removed hardcoded credentials, and introduced parameter-driven controls to improve environment parity and deployment safety. His work included implementing proactive alerting and AI service integration, enhancing both operational visibility and product capabilities. Through infrastructure as code and configuration management, Calum enabled scalable, secure, and observable cloud environments, demonstrating depth in backend and DevOps engineering.

Overall Statistics

Feature vs Bugs

93%Features

Repository Contributions

37Total
Bugs
2
Commits
37
Features
28
Lines of code
4,494
Activity Months6

Work History

July 2025

5 Commits • 3 Features

Jul 1, 2025

In July 2025, delivered a set of reliability, performance, and AI integration enhancements across three projects, driving deployment stability, proactive performance monitoring, and business-focused capabilities. The work stabilized deployment pipelines, introduced proactive alerting, and enabled AI-powered capabilities, aligning technical delivery with operational resilience and product value.

June 2025

1 Commits • 1 Features

Jun 1, 2025

June 2025: Delivered a configuration-driven enhancement to das-recruit-api that enables dynamic data-loss blocking via pipeline parameters, replacing the hardcoded setting and improving deployment safety and environment parity.

April 2025

13 Commits • 12 Features

Apr 1, 2025

April 2025 performance summary focusing on network, security, and observability improvements across the DAS suite. The month centered on delivering scalable networking topology, strengthening security controls, and enhancing deployment visibility and reliability to accelerate feature delivery and reduce operational risk.

March 2025

9 Commits • 8 Features

Mar 1, 2025

Month: 2025-03. Delivered cross-repo security and deployment pipeline improvements across nine SkillsFundingAgency repositories, focusing on removing the SqlPassword parameter and upgrading das-platform-building-blocks to version 3.0.0. The changes standardized CI/CD pipelines, reduced security risk, and improved deployment reliability, contributing to faster and more predictable releases.

February 2025

6 Commits • 3 Features

Feb 1, 2025

February 2025 monthly summary focused on security hardening, CI/CD efficiency, and network access controls across two core portfolios. Delivered business-value features with explicit deployment-time controls, upgraded automation tooling to the latest platform, and added subnet-based firewall rules to improve network segmentation and data protection.

December 2024

3 Commits • 1 Features

Dec 1, 2024

December 2024 monthly summary for SkillsFundingAgency/das-apim-endpoints. Focused on enabling configurable, observable deployment automation for Product Application Insights across product environments, improving monitoring coverage, and standardizing configuration across stages to achieve environment parity and faster incident response.

Activity

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Quality Metrics

Correctness83.8%
Maintainability83.8%
Architecture82.6%
Performance73.6%
AI Usage22.2%

Skills & Technologies

Programming Languages

C#HCLJavaPythonSQLTerraformTypeScriptYAML

Technical Skills

API DevelopmentAWSAzure DevOpsAzure PipelinesAzure Service BusBackend DevelopmentCI/CDCloud InfrastructureCloud NetworkingConfiguration ManagementDatabase AdministrationDevOpsIAMInfrastructure as CodeMonitoring

Repositories Contributed To

12 repos

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

SkillsFundingAgency/das-apim-endpoints

Dec 2024 Jul 2025
5 Months active

Languages Used

YAMLJava

Technical Skills

Azure DevOpsCI/CDDevOpsInfrastructure as CodeAzure PipelinesAPI Development

SkillsFundingAgency/das-funding-apprenticeship-earnings

Feb 2025 Apr 2025
3 Months active

Languages Used

SQLYAMLC#HCL

Technical Skills

Database AdministrationNetwork SecurityCI/CDDevOpsAWSAzure Service Bus

SkillsFundingAgency/das-recruit-api

Mar 2025 Jul 2025
3 Months active

Languages Used

YAMLC#

Technical Skills

CI/CDDevOpsBackend DevelopmentConfiguration Management

SkillsFundingAgency/das-commitments

Mar 2025 Apr 2025
2 Months active

Languages Used

YAMLTerraform

Technical Skills

CI/CDDevOpsCloud InfrastructureNetwork ConfigurationTerraform

SkillsFundingAgency/das-apprenticeships

Mar 2025 Apr 2025
2 Months active

Languages Used

YAMLHCL

Technical Skills

CI/CDDevOpsCloud NetworkingInfrastructure as CodeTerraform

SkillsFundingAgency/das-aodp-api

Mar 2025 Apr 2025
2 Months active

Languages Used

YAML

Technical Skills

CI/CDDevOps

SkillsFundingAgency/das-roatp-api

Mar 2025 Apr 2025
2 Months active

Languages Used

YAMLTypeScript

Technical Skills

CI/CDDevOpsAWSBackend DevelopmentCloud Infrastructure

SkillsFundingAgency/das-employer-accounts

Mar 2025 Apr 2025
2 Months active

Languages Used

YAMLHCL

Technical Skills

CI/CDDevOpsAWSInfrastructure as CodeTerraform

SkillsFundingAgency/das-aodp-jobs

Apr 2025 Apr 2025
1 Month active

Languages Used

PythonSQL

Technical Skills

AWSCloud InfrastructureDatabase AdministrationNetworkingSecurity

SkillsFundingAgency/das-apprentice-app

Apr 2025 Jul 2025
2 Months active

Languages Used

YAMLTypeScript

Technical Skills

Azure PipelinesCI/CDDevOpsBackend DevelopmentSystem Monitoring

SkillsFundingAgency/das-teach-in-further-education

Mar 2025 Mar 2025
1 Month active

Languages Used

YAML

Technical Skills

CI/CDDevOps

SkillsFundingAgency/das-recruit

Apr 2025 Apr 2025
1 Month active

Languages Used

Python

Technical Skills

AWSCloud InfrastructureNetworking

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