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PROFILE

Stef

Stefan Stachow developed and modernized core features for the CPS-Innovation/Polaris repository, focusing on authentication, session management, and global navigation. He engineered robust asynchronous data retrieval workflows and consolidated .NET 6/8 upgrades, improving reliability and performance. Stefan enhanced authentication flows by exposing token refresh endpoints via Nginx and implemented centralized session handling using NGINX-based configuration and dynamic cookies. He delivered global navigation and header components with React and JavaScript, supporting feature-flagged, environment-aware deployments. His work included Terraform-driven infrastructure updates, proxy-based script delivery, and rigorous end-to-end testing, demonstrating depth in backend, DevOps, and frontend engineering across cloud and CI/CD environments.

Overall Statistics

Feature vs Bugs

90%Features

Repository Contributions

35Total
Bugs
2
Commits
35
Features
19
Lines of code
69,198
Activity Months10

Work History

February 2026

2 Commits • 1 Features

Feb 1, 2026

February 2026: Polaris - Global Components Script Delivery and Configuration. Implemented a configurable mechanism to load global components' scripts from blob storage via a proxy endpoint, enhancing reliability and performance of global navigation features. The change decouples script delivery from origin and provides a more resilient loading path for critical UI components.

January 2026

1 Commits • 1 Features

Jan 1, 2026

January 2026 monthly summary for CPS-Innovation/Polaris: Delivered an Authentication Handshake Flow Enhancement by updating Nginx to redirect various launch locations to a new cookie-return stage for authentication handover, significantly improving the login experience during authentication and reducing user friction at entry points. The change is tracked under commit 1c072fea796eb45484bd83f7ddded2f7b7037a97 and associated with FCT2-13548 and deployment #1829.

December 2025

3 Commits • 1 Features

Dec 1, 2025

December 2025: Delivered centralized session management for Polaris via Global Components NGINX-based session handling, introducing Cms-Session-Hint cookie, a consolidated global components config for NGINX, dynamic value support, and JavaScript logic for reading cookies/headers. Also implemented Terraform deployment updates and related file naming cleanup to streamline deployments and reduce configuration drift. These changes improve session reliability, scalability, and security across services, enable consistent deployments via infrastructure as code, and reduce operational friction across environments.

July 2025

1 Commits • 1 Features

Jul 1, 2025

July 2025 monthly summary for CPS-Innovation/Polaris. Focused on stabilizing and simplifying the OutSystems authentication handover configuration across environments. Key feature delivered: OutSystems authentication proxy whitelist simplification. By removing environment-specific app paths and retaining only the base domain, authentication handover is streamlined, configuration updates are reduced, and cross-environment consistency is improved. This work reduces maintenance overhead and minimizes drift between development, QA, and production environments.

June 2025

2 Commits • 1 Features

Jun 1, 2025

June 2025 monthly summary for CPS-Innovation/Polaris focusing on business value and technical delivery: Key features delivered - Authentication Flow Enhancement: Exposed the /auth-refresh-cms-modern-token endpoint via the Nginx proxy to support global header authentication flows and enable token refresh for authenticated sessions. This improves session continuity across services and simplifies security posture. Commit: cba8fec8c1ec6dbe2dbe1bc265260cd4db90a663 (#FCT2-7367). - PR Build Stabilization: Implemented a temporary white-list for the global navigation blob storage in pre-production and QA to address PR build issues and ensure components relying on blob storage can access during authentication handover. This reduces PR build flakiness and speeds up feedback cycles. Commit: 4d38e7405009e797b8826580c2917e672a7b8214 (#FCT2-7367). Major bugs fixed - PR build instability resolved by the temporary blob storage whitelist, enabling stable authentication handover across environments in PR builds. Commit as above. Overall impact and accomplishments - Business value: smoother PR workflows with reduced build failures, faster validation of changes affecting authentication and storage access, and improved reliability for cross-service authentication handovers. - Technical achievements: implemented a scalable proxy-exposed authentication token refresh flow and a controlled, temporary storage access policy to stabilize pre-prod/QA PR builds. Technologies/skills demonstrated - Nginx proxy configuration for token endpoints, blob storage access control, temporary production-like handover mechanisms, and coordination of pre-prod/QA stability efforts. Repository: CPS-Innovation/Polaris, Month: 2025-06

May 2025

1 Commits • 1 Features

May 1, 2025

May 2025 performance summary for CPS-Innovation/Polaris. Focused on delivering a Global Header Component for Casework App (CWA) with cross-environment consistency and feature-flag controlled rendering. Completed environment-aware configuration, JS module, and infrastructure updates to support global components.

January 2025

1 Commits • 1 Features

Jan 1, 2025

January 2025 (2025-01) summary for CPS-Innovation/Polaris: Delivered a new global navigation component that unifies navigation across tasks, cases, and materials. The component uses URL-based active highlighting for accurate context, includes a feedback link area, and is designed to accommodate future integrations. No major bugs were fixed in this repository this month. The work improves user navigation consistency, reduces friction in daily workflows, and provides a solid foundation for analytics and future enhancements. Technologies/skills demonstrated include front-end component design, modular architecture, URL routing/state handling, and traceable change management.

December 2024

18 Commits • 7 Features

Dec 1, 2024

December 2024 (2024-12) performance summary for CPS-Innovation/Polaris. Focused on platform modernization, reliability, and end-to-end system improvements with measurable business value. Delivered consolidated framework upgrade/reversion cycles for .NET 6/8 alignment across Polaris projects (including test projects and gateway), strengthened end-to-end test coverage for UI document rename flows, and improved document redaction/retrieval paths. Implemented artifact retrieval performance enhancements with caching and a clear separation of concerns (PDF retrieval, OCR, PII analysis), while cleaning up dependencies to reduce risk. Strengthened authentication robustness, analytics visibility, and development workflows to accelerate secure feature delivery and reduce deployment frictions.

November 2024

3 Commits • 3 Features

Nov 1, 2024

November 2024 Polaris monthly summary: Focused on infrastructure hygiene and testing capabilities in the CPS-Innovation/Polaris repo. Implemented deployment simplifications by removing the stale Polaris-integration project and tidying Terraform configurations; removed unused blob service settings from Azure Function app settings. Enhanced end-to-end testing with a parameterized script to support dynamic inputs. Extended development environment with REACT_APP_REDACTION_LOG_SCOPE to configure access for the redaction log service. These changes reduce deployment friction, improve test reproducibility, and clarify access controls in the dev environment.

October 2024

3 Commits • 2 Features

Oct 1, 2024

October 2024 (CPS-Innovation/Polaris) focused on reliability, performance, and workflow maturity across the document lifecycle and artefact data retrieval. Delivered a robust asynchronous data retrieval workflow, a targeted notes retrieval fix, and modernization of the document checkout process, with accompanying infrastructure updates and tests. These changes enhanced user experience, reduced latency and unnecessary data fetches, and improved system stability for concurrent operations.

Activity

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Quality Metrics

Correctness85.4%
Maintainability84.6%
Architecture80.8%
Performance78.6%
AI Usage21.2%

Skills & Technologies

Programming Languages

C#Environment VariablesHCLHTMLJavaJavaScriptKQLNginxSCSSShell

Technical Skills

.NET Core .NET Development C# Software Development.NETAPI DevelopmentAPI IntegrationAsynchronous ProgrammingAuthenticationAzCopyAzure Blob StorageAzure FunctionsBackend DevelopmentBuild ToolsCI/CD

Repositories Contributed To

1 repo

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

CPS-Innovation/Polaris

Oct 2024 Feb 2026
10 Months active

Languages Used

C#HCLJavaJavaScriptTypeScriptEnvironment VariablesShellKQL

Technical Skills

API DevelopmentAPI IntegrationAsynchronous ProgrammingAzure FunctionsBackend DevelopmentCypress

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