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Exceeds
Roger Carhuatocto

PROFILE

Roger Carhuatocto

Worked on security-focused DevOps enhancements across multiple Zama AI repositories, including concrete-ml, concrete, kms, and fhevm. Delivered Docker image hardening by enforcing non-root execution and standardizing base images, using Dockerfile, Shell, and YAML to address vulnerabilities and improve CI/CD reliability. In zama-ai/kms, mitigated CVE-2026-31431 by disabling a kernel module in CI workflows, balancing security with development velocity. Enhanced PR review automation in zama-ai/fhevm by updating GitHub Actions workflows, enabling draft PR reviews, and improving malware risk mitigation. Demonstrated a methodical approach to security best practices, workflow stability, and traceable, commit-level improvements in collaborative environments.

Overall Statistics

Feature vs Bugs

75%Features

Repository Contributions

4Total
Bugs
1
Commits
4
Features
3
Lines of code
662
Activity Months3

Work History

June 2026

1 Commits • 1 Features

Jun 1, 2026

Month 2026-06 focused on enhancing PR review automation and hardening CI for the zama-ai/fhevm repository. Delivered Claude Review Workflow Enhancements, enabling review on draft PRs and implementing security improvements. Implemented a malware-domain allowlist update in the CI workflow to reduce risk from malware. Fixed key stability issues in the workflow, including a concurrency group split defect and a Zizmor warning, resulting in more reliable PR validation and fewer CI errors. Overall, these changes boosted developer productivity, reduced review friction, and strengthened security posture while maintaining traceability through commit-level changes.

May 2026

1 Commits • 1 Features

May 1, 2026

May 2026 — Zama AI KMS: focused on reducing security risk in CI by hardening workflows against CVE-2026-31431. Implemented a targeted CI security hardening by disabling the algif_aead kernel module to prevent potential vulnerabilities during builds and tests. Work delivered as a single commit with cross-team collaboration. The change maintains CI velocity while strengthening security posture.

February 2025

2 Commits • 1 Features

Feb 1, 2025

February 2025 performance summary: Delivered security-focused hardening for Docker images in zama-ai/concrete-ml and zama-ai/concrete, reinforcing deployment security and CI/CD reliability. Implemented non-root execution across Dockerfiles, standardized base images, and addressed Trivy findings. Tuned CI by ignoring non-critical HEALTHCHECK checks to reduce privileges and improve stability. These changes reduce attack surface, improve security posture, and support faster, more secure releases across both repos.

Activity

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Quality Metrics

Correctness85.0%
Maintainability80.0%
Architecture80.0%
Performance70.0%
AI Usage30.0%

Skills & Technologies

Programming Languages

DockerfileShellYAML

Technical Skills

CI/CDDevOpsDockerGitHub ActionsLinuxSecuritySecurity Best Practices

Repositories Contributed To

4 repos

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

zama-ai/concrete-ml

Feb 2025 Feb 2025
1 Month active

Languages Used

DockerfileShell

Technical Skills

DevOpsDockerSecurity

zama-ai/concrete

Feb 2025 Feb 2025
1 Month active

Languages Used

DockerfileShell

Technical Skills

CI/CDDockerLinux

zama-ai/kms

May 2026 May 2026
1 Month active

Languages Used

YAML

Technical Skills

CI/CDDevOpsSecurity

zama-ai/fhevm

Jun 2026 Jun 2026
1 Month active

Languages Used

ShellYAML

Technical Skills

CI/CDGitHub ActionsSecurity Best Practices