NHSDigital/dtos-cohort-manager
Feb 2025 – Jul 2025
6 Months active
Languages Used
C#N/APowerShellYAMLGherkinTOMLTypeScripttypescript
Technical Skills
Automated TestingAzureAzure Blob StorageAzure DevOpsBackend DevelopmentC#
charanNHS
PROFILE
Charannhs
Charan Thotakura developed and enhanced automated testing infrastructure for the NHSDigital/dtos-cohort-manager repository, focusing on robust end-to-end validation of cohort data workflows. Over six months, Charan implemented post-deployment test pipelines in Azure DevOps, integrated managed identity for secure database access, and expanded test coverage across multiple epics. Using C#, TypeScript, and Playwright, Charan refactored test suites for maintainability, introduced dynamic data handling, and improved API and data validation logic. These efforts reduced manual testing, increased release confidence, and ensured production-like reliability by addressing complex scenarios such as eligibility flag processing, participant data ingestion, and nuanced API response validation.
Overall Statistics
Feature vs Bugs
100%Features
Repository Contributions
36Total
Bugs
0
Commits
36
Features
9
Lines of code
10,751
Activity Months6
Your Network
190 people
Work History
July 2025
4 Commits • 2 Features
Jul 1, 2025July 2025 monthly summary for NHSDigital/dtos-cohort-manager: Strengthened test automation and end-to-end coverage, delivering tangible improvements in reliability, data validation, and release readiness. Focused on robust API validation, nuanced 204 No Content handling, and refined NHS number/timestamp checks, while expanding Epic 2 end-to-end test scenarios and data. These efforts improve confidence in production behavior and reduce flaky tests, enabling faster and safer releases.
4 Commits • 2 Features
Jul 1, 2025July 2025 monthly summary for NHSDigital/dtos-cohort-manager: Strengthened test automation and end-to-end coverage, delivering tangible improvements in reliability, data validation, and release readiness. Focused on robust API validation, nuanced 204 No Content handling, and refined NHS number/timestamp checks, while expanding Epic 2 end-to-end test scenarios and data. These efforts improve confidence in production behavior and reduce flaky tests, enabling faster and safer releases.
July 2025
June 2025
13 Commits • 1 Features
Jun 1, 2025June 2025 monthly summary for NHSDigital/dtos-cohort-manager: Focused on expanding and hardening end-to-end QA across Epics 1-3, with a strong emphasis on high-priority test scenarios and robust test-suite coverage. The effort consolidated cutting-edge test practices into a coherent suite to validate complex cohort removal workflows and participant data flows.
June 2025
13 Commits • 1 Features
Jun 1, 2025June 2025 monthly summary for NHSDigital/dtos-cohort-manager: Focused on expanding and hardening end-to-end QA across Epics 1-3, with a strong emphasis on high-priority test scenarios and robust test-suite coverage. The effort consolidated cutting-edge test practices into a coherent suite to validate complex cohort removal workflows and participant data flows.
May 2025
9 Commits • 2 Features
May 1, 2025May 2025: Delivered substantial enhancements to end-to-end test suites in NHSDigital/dtos-cohort-manager, focusing on Epic 2 and Epic 3 coverage, stability, and validation. Implemented high-priority tests for Epic 2 eligibility flag validation (ADD/AMENDED) and NHS number format validation; extended coverage for Epic 3 including participant data processing, exception handling, amendments with removal reasons, and storage-based ADD/AMEND scenarios. Consolidated test stability and refactoring to reduce flaky tests and improve maintainability. These efforts together improve release confidence, enable faster iteration, and align with quality gates for cohort-management workflows.
9 Commits • 2 Features
May 1, 2025May 2025: Delivered substantial enhancements to end-to-end test suites in NHSDigital/dtos-cohort-manager, focusing on Epic 2 and Epic 3 coverage, stability, and validation. Implemented high-priority tests for Epic 2 eligibility flag validation (ADD/AMENDED) and NHS number format validation; extended coverage for Epic 3 including participant data processing, exception handling, amendments with removal reasons, and storage-based ADD/AMEND scenarios. Consolidated test stability and refactoring to reduce flaky tests and improve maintainability. These efforts together improve release confidence, enable faster iteration, and align with quality gates for cohort-management workflows.
May 2025
April 2025
5 Commits • 2 Features
Apr 1, 2025April 2025 monthly summary for NHSDigital/dtos-cohort-manager: Key features delivered include end-to-end tests for the Cohort Manager Eligibility Flag and substantial testing enhancements/refactors. Quality improvements were made with SonarQube remediation and more reliable test fixtures. Overall impact is safer, more reliable eligibility processing with higher test coverage and maintainability.
April 2025
5 Commits • 2 Features
Apr 1, 2025April 2025 monthly summary for NHSDigital/dtos-cohort-manager: Key features delivered include end-to-end tests for the Cohort Manager Eligibility Flag and substantial testing enhancements/refactors. Quality improvements were made with SonarQube remediation and more reliable test fixtures. Overall impact is safer, more reliable eligibility processing with higher test coverage and maintainability.
March 2025
2 Commits • 1 Features
Mar 1, 2025Summary for 2025-03: Delivered a robust end-to-end testing framework for NHS cohort manager data ingestion, with coverage for ADD and AMENDED records, supported by refactored test structures and improved blob storage and database helpers to ensure regression reliability and data integrity. This work reduces ingestion risk and accelerates safe deployment of data changes, delivering measurable business value in data quality and confidence.
2 Commits • 1 Features
Mar 1, 2025Summary for 2025-03: Delivered a robust end-to-end testing framework for NHS cohort manager data ingestion, with coverage for ADD and AMENDED records, supported by refactored test structures and improved blob storage and database helpers to ensure regression reliability and data integrity. This work reduces ingestion risk and accelerates safe deployment of data changes, delivering measurable business value in data quality and confidence.
March 2025
February 2025
3 Commits • 1 Features
Feb 1, 2025February 2025 - NHSDigital/dtos-cohort-manager: Delivered Cohort Manager Automated Testing Infrastructure. Implemented a post-deployment automation test pipeline in Azure DevOps to build, run smoke tests, and publish artifacts. Updated database helper methods to authenticate via managed identity, improving security and simplifying connection management. Added environment-aware testing with cloud/local configuration switches and test data management for smoke tests. Integrated test files into the main branch to streamline maintenance and test coverage. This work enhances release confidence, reduces manual testing effort, and improves traceability across environments.
February 2025
3 Commits • 1 Features
Feb 1, 2025February 2025 - NHSDigital/dtos-cohort-manager: Delivered Cohort Manager Automated Testing Infrastructure. Implemented a post-deployment automation test pipeline in Azure DevOps to build, run smoke tests, and publish artifacts. Updated database helper methods to authenticate via managed identity, improving security and simplifying connection management. Added environment-aware testing with cloud/local configuration switches and test data management for smoke tests. Integrated test files into the main branch to streamline maintenance and test coverage. This work enhances release confidence, reduces manual testing effort, and improves traceability across environments.
Activity
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Quality Metrics
Correctness86.2%
Maintainability83.8%
Architecture76.8%
Performance75.0%
AI Usage21.2%
Skills & Technologies
Programming Languages
C#GherkinJSONJavaScriptN/APowerShellPythonSQLTOMLTypeScript
Technical Skills
API TestingAutomated TestingAzureAzure Blob StorageAzure DevOpsBackend DevelopmentBehavior-Driven Development (BDD)C#CI/CDConfigurationConfiguration ManagementData ValidationDatabase ManagementDatabase ValidationDebugging
Repositories Contributed To
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