NHSDigital/ftrs-directory-of-services
Dec 2025 – Feb 2026
3 Months active
Languages Used
PythonYAMLTerraform
Technical Skills
DynamoDBPythonbehavior-driven developmentdata migrationtestingAWS
Andrzej Pietrzak
PROFILE
Andrzej Pietrzak
Andrzej Pietrzak developed and enhanced data migration testing and reliability features for the NHSDigital/ftrs-directory-of-services repository over a three-month period. He built a comprehensive data migration testing suite using Python and DynamoDB, delivering end-to-end validation for triage-code mappings, opening hours, and service endpoints. Andrzej improved CI/CD workflows by refining test frameworks and input parameters, and addressed bugs related to entity key inference and table name handling. He also strengthened security by updating KMS configurations with Terraform, ensuring robust encryption and access control. His work demonstrated depth in data migration, testing, and cloud infrastructure, reducing migration risk and improving maintainability.
Overall Statistics
Feature vs Bugs
60%Features
Repository Contributions
8Total
Bugs
2
Commits
8
Features
3
Lines of code
1,904
Activity Months3
Your Network
210 people
Work History
February 2026
1 Commits • 1 Features
Feb 1, 2026February 2026 monthly summary for NHSDigital/ftrs-directory-of-services focusing on data migration reliability and security enhancements. Implemented fixes for data migration table name usage and updated dependencies to improve reliability; updated KMS configuration to strengthen security and access control. This work reduces migration risk, improves data integrity, and aligns with security/compliance requirements.
1 Commits • 1 Features
Feb 1, 2026February 2026 monthly summary for NHSDigital/ftrs-directory-of-services focusing on data migration reliability and security enhancements. Implemented fixes for data migration table name usage and updated dependencies to improve reliability; updated KMS configuration to strengthen security and access control. This work reduces migration risk, improves data integrity, and aligns with security/compliance requirements.
February 2026
January 2026
2 Commits • 1 Features
Jan 1, 2026January 2026 monthly summary for NHSDigital/ftrs-directory-of-services focusing on data migration reliability and testing improvements. Delivered fixes to ensure correct restoration of state tables and enhanced the data migration testing framework to validate migrations more robustly within CI/CD workflows.
January 2026
2 Commits • 1 Features
Jan 1, 2026January 2026 monthly summary for NHSDigital/ftrs-directory-of-services focusing on data migration reliability and testing improvements. Delivered fixes to ensure correct restoration of state tables and enhanced the data migration testing framework to validate migrations more robustly within CI/CD workflows.
December 2025
5 Commits • 1 Features
Dec 1, 2025December 2025: Implemented a Data Migration Testing Suite for service data in NHSDigital/ftrs-directory-of-services, delivering end-to-end tests for triage-code mappings, opening hours, service dispositions, and endpoints to ensure accurate migrations. Fixed triage code migration tests after a data migration refactor, ensuring correct source field handling and support for a new application type. These contributions increased test coverage, reduced migration risk, and demonstrated robust data transformation validation and QA collaboration.
5 Commits • 1 Features
Dec 1, 2025December 2025: Implemented a Data Migration Testing Suite for service data in NHSDigital/ftrs-directory-of-services, delivering end-to-end tests for triage-code mappings, opening hours, service dispositions, and endpoints to ensure accurate migrations. Fixed triage code migration tests after a data migration refactor, ensuring correct source field handling and support for a new application type. These contributions increased test coverage, reduced migration risk, and demonstrated robust data transformation validation and QA collaboration.
December 2025
Activity
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Quality Metrics
Correctness87.6%
Maintainability82.6%
Architecture82.6%
Performance82.6%
AI Usage27.6%
Skills & Technologies
Programming Languages
PythonTerraformYAML
Technical Skills
AWSCI/CDDynamoDBPythonPython scriptingTerraformbehavior-driven developmentcloud servicesdata migrationtesting
Repositories Contributed To
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