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Nuno Simões

PROFILE

Nuno Simões

Nasimoes enhanced CI/CD pipelines and artifact management across multiple Mattermost repositories, focusing on reliability, security, and automation. They implemented S3 artifact uploads with pre-upload validation in mattermost/desktop and mattermost-mobile, integrating AWS and Fastlane to streamline release workflows. In mattermost-plugin-boards, they strengthened CI security by refining token permissions, while in mattermost/mattermost, they stabilized build processes by addressing local package handling in notice-file generation. Using Ruby and YAML within GitHub Actions, Nasimoes delivered features that reduced release friction and improved build stability. Their work demonstrated depth in DevOps practices, addressing both cross-platform automation and secure, maintainable infrastructure improvements.

Overall Statistics

Feature vs Bugs

63%Features

Repository Contributions

11Total
Bugs
3
Commits
11
Features
5
Lines of code
247
Activity Months2

Work History

February 2026

8 Commits • 2 Features

Feb 1, 2026

February 2026: Delivered cross-repo enhancements for release automation, CI/CD reliability, and build stability, with a strong focus on secure artifact handling and robust GitHub Actions workflows. Key outcomes include enabling S3 release artifact uploads for mattermost-mobile with support for an additional bucket (including a new Fastlane lane), fixing iOS simulator build permissions for OIDC auth to work with the new bucket, strengthening CI security in mattermost-plugin-boards by tightening token permissions, improving desktop CI/CD reliability through pinned actions and corrected S3 upload paths, and stabilizing core build processes by ignoring unpublished local packages during notice-file generation. These changes reduce release friction, improve security posture, and enable faster, safer releases across web, mobile, and desktop platforms.

January 2026

3 Commits • 3 Features

Jan 1, 2026

January 2026 monthly summary focusing on CI/DevOps improvements across mattermost/desktop and mattermost/mattermost-developer-documentation. The month centered on delivering reliable artifact handling in CI, strengthening security controls in nightly/release workflows, and upgrading tooling for compatibility, with no major customer-facing bugs recorded in the provided data. The work positions the project for more resilient CI pipelines, faster release cycles, and improved artifact integrity.

Activity

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Quality Metrics

Correctness96.4%
Maintainability94.6%
Architecture94.6%
Performance94.6%
AI Usage21.8%

Skills & Technologies

Programming Languages

RubyYAML

Technical Skills

AWSCI/CDDevOpsFastlaneGitHub Actionsbackend developmentiOS Development

Repositories Contributed To

5 repos

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

mattermost/desktop

Jan 2026 Feb 2026
2 Months active

Languages Used

YAML

Technical Skills

AWSCI/CDDevOpsGitHub Actions

mattermost/mattermost-mobile

Feb 2026 Feb 2026
1 Month active

Languages Used

RubyYAML

Technical Skills

AWSCI/CDDevOpsFastlaneGitHub ActionsiOS Development

mattermost/mattermost-developer-documentation

Jan 2026 Jan 2026
1 Month active

Languages Used

YAML

Technical Skills

DevOpsGitHub Actions

mattermost/mattermost-plugin-boards

Feb 2026 Feb 2026
1 Month active

Languages Used

YAML

Technical Skills

CI/CDDevOpsGitHub Actions

mattermost/mattermost

Feb 2026 Feb 2026
1 Month active

Languages Used

YAML

Technical Skills

DevOpsbackend development