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Mikolaj Stempniewicz

PROFILE

Mikolaj Stempniewicz

Worked on the saleor/saleor and saleor-dashboard repositories to enhance CI/CD security and infrastructure reliability over a three-month period. Migrated AWS authentication in GitHub Actions workflows from IAM users to IAM roles, reducing long-lived credentials and aligning with best practices for service-to-service authentication. Implemented automated test environment cleanup using YAML-based workflows, centralizing AWS region configuration and enabling both scheduled and manual triggers for environment management. Addressed deployment status update issues to ensure accurate environment URLs. Leveraged AWS, CI/CD, and GitHub Actions to improve auditability, deployment visibility, and cost control, supporting future infrastructure hardening and more reliable testing processes.

Overall Statistics

Feature vs Bugs

75%Features

Repository Contributions

6Total
Bugs
1
Commits
6
Features
3
Lines of code
263
Activity Months3

Work History

August 2025

4 Commits • 1 Features

Aug 1, 2025

Performance summary for 2025-08: Implemented automated test environment lifecycle improvements and a robust deployment status workflow in saleor/saleor. These changes reduce stale test environments, improve deployment visibility, and standardize region configuration, enabling faster feedback, better cost control, and more reliable testing across environments.

June 2025

1 Commits • 1 Features

Jun 1, 2025

June 2025: Delivered security-focused CI/CD hardening for saleor/saleor by migrating AWS access from IAM users to IAM roles, eliminating long-lived credentials and strengthening service-to-service authentication. This change reduces attack surface in CI workflows and improves compliance with best practices. Implemented as part of the SCL-941 effort, with commit 43f5ba1b48e59ef66cf2fe4f490b45e61aaa7222.

May 2025

1 Commits • 1 Features

May 1, 2025

May 2025 monthly summary for saleor-dashboard focusing on security-focused CI/CD credential management improvements and baseline business impact.

Activity

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Quality Metrics

Correctness88.4%
Maintainability86.6%
Architecture85.0%
Performance71.6%
AI Usage20.0%

Skills & Technologies

Programming Languages

YAML

Technical Skills

AWSAWS IAMCI/CDDevOpsGitHub ActionsInfrastructure

Repositories Contributed To

2 repos

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

saleor/saleor

Jun 2025 Aug 2025
2 Months active

Languages Used

YAML

Technical Skills

AWS IAMCI/CDGitHub ActionsAWSDevOpsInfrastructure

saleor/saleor-dashboard

May 2025 May 2025
1 Month active

Languages Used

YAML

Technical Skills

AWS IAMCI/CDGitHub Actions