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Marcin Jastrzebski

PROFILE

Marcin Jastrzebski

Maja Strzebońska contributed to Azure/bicep and Azure/azure-rest-api-specs by building features and resolving bugs that improved code reliability, security, and compliance. She developed an Azure Resource Validation Client in TypeScript and JSON to validate ARM resources pre-deployment, reducing misconfigurations and streamlining PR feedback. In Azure/bicep, she enhanced the code completion engine, addressed stack overflow issues in module parameters, and standardized licensing data for audit readiness. Her work included dependency management, security patching, and MSBuild diagnostics improvements using C# and PowerShell. Maja’s engineering demonstrated depth in backend development, legal compliance, and test automation, resulting in more robust and maintainable codebases.

Overall Statistics

Feature vs Bugs

50%Features

Repository Contributions

7Total
Bugs
3
Commits
7
Features
3
Lines of code
103,246
Activity Months6

Work History

January 2026

1 Commits • 1 Features

Jan 1, 2026

January 2026 monthly summary for Azure/azure-rest-api-specs: Delivered a new Azure Resource Validation Client to validate multiple ARM resources before deployment, enhancing resource configuration correctness. This month included backfill for /validateResources tsp (#39669) to strengthen pre-deployment checks. No major bugs documented this period; focus remained on delivering business value via early validation and API reliability improvements. Overall impact: reduced deployment risks, faster PR feedback cycles, and better governance of resource configurations. Technologies/skills demonstrated: API design for resource validation, ARM resource management, REST API specifications, code backfills, and collaboration across the Azure REST API specs team.

November 2025

1 Commits • 1 Features

Nov 1, 2025

November 2025 monthly summary for the Azure/bicep contributor. Focused on improving build feedback and test reliability by delivering MSBuild diagnostics enhancements and a cross-platform end-to-end test prerequisites script. This work reduces time to triage build issues and streamlines test environment setup, accelerating CI feedback and onboarding for new contributors.

October 2025

1 Commits

Oct 1, 2025

October 2025 monthly summary for Azure/bicep-types-az. Focused on stability and dependency alignment. Key activity: FluentAssertions compatibility adjustment in unit tests. Downgraded FluentAssertions from 8.1.1 to 7.2.0 in Bicep.Types.Az.UnitTests and updated the bicep-types subproject accordingly. This change reduces test flakiness and aligns with downstream consumers. Commit: 67a5d75dd64367b4f304f514480b999664f1e901.

January 2025

2 Commits • 1 Features

Jan 1, 2025

January 2025 monthly summary for Azure/bicep focusing on feature delivery, bug fixes, and impact. Key feature delivered: Third-Party Notices (TPN) consolidation and Bicep.IO licensing integration across Bicep project directories to standardize licensing information, improve compliance, and enhance dependency tracking. Major bugs fixed: none reported this month. Overall impact: strengthened licensing governance, improved license visibility for audits, and established a foundation for automated license data workflows. Technologies/skills demonstrated: licensing data standardization, TPN management, Bicep.IO integration, and repo-wide data synchronization across project directories.

December 2024

1 Commits

Dec 1, 2024

December 2024: Azure/bicep security hardening through npm audit fix. Patched security vulnerabilities by updating dependencies to patched versions, with minimal changes to preserve compatibility. Outcome: reduced exposure to known vulnerabilities, maintained CI stability, and continued alignment with security advisories.

November 2024

1 Commits

Nov 1, 2024

November 2024 monthly summary for Azure/bicep focusing on stability and correctness of the code completion engine within module parameters. Implemented a fix to prevent stack overflow during object-literal completion by correctly handling collapsed union types, eliminating infinite recursion. Added regression coverage to guard against recurrence. Result: more reliable autocomplete for module authors and reduced debugging time, contributing to overall developer productivity and code quality.

Activity

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Quality Metrics

Correctness94.2%
Maintainability88.6%
Architecture88.6%
Performance88.6%
AI Usage22.8%

Skills & Technologies

Programming Languages

C#JSONPowerShellShellTextTypeScript

Technical Skills

API DevelopmentAzure Resource ManagerBackend DevelopmentC# developmentCodebase MaintenanceDependency ManagementEnd-to-end testingJSONLanguage Server DevelopmentLegal ComplianceLicense ManagementLicensing ComplianceMSBuildPowerShell scriptingSecurity Auditing

Repositories Contributed To

3 repos

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

Azure/bicep

Nov 2024 Nov 2025
4 Months active

Languages Used

C#ShellTextPowerShell

Technical Skills

Backend DevelopmentLanguage Server DevelopmentTestingDependency ManagementSecurity AuditingCodebase Maintenance

Azure/bicep-types-az

Oct 2025 Oct 2025
1 Month active

Languages Used

C#

Technical Skills

Dependency ManagementUnit Testing

Azure/azure-rest-api-specs

Jan 2026 Jan 2026
1 Month active

Languages Used

JSONTypeScript

Technical Skills

API DevelopmentAzure Resource ManagerJSONTypeScript

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