zalando/skipper
Apr 2025 – Apr 2025
1 Month active
Languages Used
Go
Technical Skills
Backend DevelopmentCookie ManagementDependency ManagementHTTP FiltersSecurity Patching
Andreas Skorczyk
PROFILE
Andreas Skorczyk
Worked on backend and infrastructure improvements across the zalando/skipper and coder/registry repositories, focusing on performance, security, and reliability. Delivered a cookie-forwarding optimization in the oauthOidc filter for Skipper, dropping specific cookies before forwarding requests to reduce header size and improve OAuth/OIDC throughput. Addressed a Go runtime security vulnerability by upgrading dependencies, ensuring a more secure environment. In coder/registry, implemented conditional creation of the CLAUDE_API_KEY environment variable using Terraform, preventing unset variables and enhancing deployment stability. Demonstrated skills in Go, HCL, and infrastructure as code, with a focus on maintainable code, reproducible builds, and robust environment configuration.
Overall Statistics
Feature vs Bugs
33%Features
Repository Contributions
3Total
Bugs
2
Commits
3
Features
1
Lines of code
87
Activity Months2
Your Network
76 peopleWork History
February 2026
1 Commits
Feb 1, 2026February 2026 monthly summary for coder/registry: focus on reliability and security of environment configuration; main deliverable was making CLAUDE_API_KEY environment variable conditional, preventing unnecessary unset variables; associated test and formatting improvements; maintained code quality and reproducible builds.
1 Commits
Feb 1, 2026February 2026 monthly summary for coder/registry: focus on reliability and security of environment configuration; main deliverable was making CLAUDE_API_KEY environment variable conditional, preventing unnecessary unset variables; associated test and formatting improvements; maintained code quality and reproducible builds.
February 2026
April 2025
2 Commits • 1 Features
Apr 1, 2025April 2025 highlights: Delivered a performance-focused cookie-forwarding optimization in the oauthOidc filter to drop skipperOauthOidc cookies before forwarding requests, reducing outbound header size and improving OAuth/OIDC throughput. Implemented via commit 1c7e27595252190a456b83f024a81a3f78572336. Fixed a security-related Go runtime issue by upgrading Go from 1.23.6 to 1.23.8 (go.mod updated) via commit d05b0409b27a696e981aefa49a9a41bfc77ca4ad. Overall impact: lower header overhead, faster request handling in OAuth/OIDC paths, and a stronger security posture due to up-to-date runtime. Technologies demonstrated: Go, filter logic, cookie handling, header optimization, and go.mod dependency management, aligning with upstream Skipper patterns.
April 2025
2 Commits • 1 Features
Apr 1, 2025April 2025 highlights: Delivered a performance-focused cookie-forwarding optimization in the oauthOidc filter to drop skipperOauthOidc cookies before forwarding requests, reducing outbound header size and improving OAuth/OIDC throughput. Implemented via commit 1c7e27595252190a456b83f024a81a3f78572336. Fixed a security-related Go runtime issue by upgrading Go from 1.23.6 to 1.23.8 (go.mod updated) via commit d05b0409b27a696e981aefa49a9a41bfc77ca4ad. Overall impact: lower header overhead, faster request handling in OAuth/OIDC paths, and a stronger security posture due to up-to-date runtime. Technologies demonstrated: Go, filter logic, cookie handling, header optimization, and go.mod dependency management, aligning with upstream Skipper patterns.
Activity
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Quality Metrics
Correctness100.0%
Maintainability100.0%
Architecture93.4%
Performance93.4%
AI Usage20.0%
Skills & Technologies
Programming Languages
GoHCL
Technical Skills
Backend DevelopmentCookie ManagementDependency ManagementHTTP FiltersInfrastructure as CodeSecurity PatchingTerraform
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline
coder/registry
Feb 2026 – Feb 2026
1 Month active
Languages Used
HCL
Technical Skills
Infrastructure as CodeTerraform