
Emmanuel Martinez Gandara led ongoing documentation engineering for the centreon/centreon-documentation repository, delivering over 38 features and multiple bug fixes across 15 months. He focused on improving upgrade reliability, onboarding, and operational clarity by restructuring guides, enhancing localization, and aligning documentation with evolving product workflows. Using Markdown, Shell scripting, and PHP, Emmanuel standardized installation and upgrade procedures, clarified API and authentication flows, and expanded technical references for both English and French audiences. His work addressed cross-version consistency, reduced support friction, and improved security guidance, demonstrating depth in technical writing, system administration, and documentation management for complex monitoring environments.
February 2026 (2026-02) — Documentation-focused delivery across Centreon; improved onboarding, deployment reliability, and security guidance. Primary work concentrated in installation, upgrade, and knowledge-base documentation with cross-language standardization. Resulted in clearer user journeys, faster onboarding, and reduced support friction through precise release notes and compatibility updates.
February 2026 (2026-02) — Documentation-focused delivery across Centreon; improved onboarding, deployment reliability, and security guidance. Primary work concentrated in installation, upgrade, and knowledge-base documentation with cross-language standardization. Resulted in clearer user journeys, faster onboarding, and reduced support friction through precise release notes and compatibility updates.
January 2026: Focused on documentation quality and upgrade stability for Centreon. Key features delivered include Upgrade & Installation Documentation Enhancements, Release Notes Accuracy improvements for Centreon 25.10, and Memory Cache Clearing Stability Enhancements. Major bugs fixed include Release Notes inaccuracies and cache-clear memory safety during upgrades. Impact: improved release readiness and accuracy, clearer and more reliable upgrade procedures, and reduced upgrade risks due to memory-related cache operations. Technologies/skills demonstrated: technical writing, cross-repo coordination, Markdown/docs engineering, release-note governance, and systems stability testing.
January 2026: Focused on documentation quality and upgrade stability for Centreon. Key features delivered include Upgrade & Installation Documentation Enhancements, Release Notes Accuracy improvements for Centreon 25.10, and Memory Cache Clearing Stability Enhancements. Major bugs fixed include Release Notes inaccuracies and cache-clear memory safety during upgrades. Impact: improved release readiness and accuracy, clearer and more reliable upgrade procedures, and reduced upgrade risks due to memory-related cache operations. Technologies/skills demonstrated: technical writing, cross-repo coordination, Markdown/docs engineering, release-note governance, and systems stability testing.
December 2025: Delivered four major documentation improvements in the centreon-documentation repository, enhancing upgrade reliability, reporting/monitoring clarity, MariaDB configuration guidance, and security practices. Results align with Centreon 25.10 and Business Edition, with French localization updates where applicable.
December 2025: Delivered four major documentation improvements in the centreon-documentation repository, enhancing upgrade reliability, reporting/monitoring clarity, MariaDB configuration guidance, and security practices. Results align with Centreon 25.10 and Business Edition, with French localization updates where applicable.
Monthly summary for 2025-11 focusing on Centreon Documentation quality improvements for the 25.10/MBI 25.10 release. Consolidated the documentation updates to enhance migration and upgrade guidance, removed obsolete field descriptions, and fixed references to ensure accurate navigation across English and French docs.
Monthly summary for 2025-11 focusing on Centreon Documentation quality improvements for the 25.10/MBI 25.10 release. Consolidated the documentation updates to enhance migration and upgrade guidance, removed obsolete field descriptions, and fixed references to ensure accurate navigation across English and French docs.
August 2025 focused on delivering a comprehensive overhaul of the Centreon MBI Documentation in the centreon/centreon-documentation repository. Key changes include reorganized structure, improved clarity, and user-friendliness, along with the removal of a redundant RHEL command from central server install docs across versions. New files were added for report categories with refined content, corrected links, and improved formatting. The work reduces onboarding friction, supports cross-version consistency, and enhances maintainability. Commits 1530c6ca47c1379bbc1d09d165b11039ae4b6e59 (redundant RHEL command in central server install) and 9310c0a2db12d3975b1f09910be5cd367f84a021 (MBI rework) were applied to finalize the overhaul.
August 2025 focused on delivering a comprehensive overhaul of the Centreon MBI Documentation in the centreon/centreon-documentation repository. Key changes include reorganized structure, improved clarity, and user-friendliness, along with the removal of a redundant RHEL command from central server install docs across versions. New files were added for report categories with refined content, corrected links, and improved formatting. The work reduces onboarding friction, supports cross-version consistency, and enhances maintainability. Commits 1530c6ca47c1379bbc1d09d165b11039ae4b6e59 (redundant RHEL command in central server install) and 9310c0a2db12d3975b1f09910be5cd367f84a021 (MBI rework) were applied to finalize the overhaul.
Concise monthly summary for July 2025 focusing on documentation improvements for centreon/centreon-documentation, highlighting delivered features, minor changes, and business value.
Concise monthly summary for July 2025 focusing on documentation improvements for centreon/centreon-documentation, highlighting delivered features, minor changes, and business value.
June 2025 focused on strengthening Centreon Documentation to accelerate customer onboarding, improve operational guidance, and enhance accuracy. Delivered comprehensive cloud onboarding, streamlined install/update guidance, clarified API access rules, and expanded macros reference. Fixed key command semantics and consistency issues to reduce support overhead and improve docs reliability.
June 2025 focused on strengthening Centreon Documentation to accelerate customer onboarding, improve operational guidance, and enhance accuracy. Delivered comprehensive cloud onboarding, streamlined install/update guidance, clarified API access rules, and expanded macros reference. Fixed key command semantics and consistency issues to reduce support overhead and improve docs reliability.
Month: 2025-05 — This monthly summary highlights feature delivery, bug fixes, and business impact in Centreon Documentation. A targeted cleanup was completed for the Centreon BAM Migration Documentation in the centreon/centreon-documentation repository. The update removes outdated migration files and duplicates across Centreon BAM module versions and clearly states that the BAM migration procedure remains the same as the update procedure. Impact: reduces user and contributor confusion, increases documentation accuracy, and lowers maintenance overhead by aligning docs with actual deployment procedures. This work supports faster onboarding for new contributors and reduces potential support inquiries related to migration steps. Notes: major related commit referenced in this work is 6e7052a625cf1a3fabbe3f71687f5ae2e6fd3393.
Month: 2025-05 — This monthly summary highlights feature delivery, bug fixes, and business impact in Centreon Documentation. A targeted cleanup was completed for the Centreon BAM Migration Documentation in the centreon/centreon-documentation repository. The update removes outdated migration files and duplicates across Centreon BAM module versions and clearly states that the BAM migration procedure remains the same as the update procedure. Impact: reduces user and contributor confusion, increases documentation accuracy, and lowers maintenance overhead by aligning docs with actual deployment procedures. This work supports faster onboarding for new contributors and reduces potential support inquiries related to migration steps. Notes: major related commit referenced in this work is 6e7052a625cf1a3fabbe3f71687f5ae2e6fd3393.
Monthly summary for 2025-04 (centreon/centreon-documentation). Focused on deprecation cleanup, localization, and documentation restructuring to support upgrade readiness and global usability. Delivered removal of deprecated BA Reporting Logs content, localization of Telegram notifications to French, restructure of Simple reporting content into an availability file, and added upgrade guidance for image synchronization; complemented by minor wording corrections to improve clarity and consistency.
Monthly summary for 2025-04 (centreon/centreon-documentation). Focused on deprecation cleanup, localization, and documentation restructuring to support upgrade readiness and global usability. Delivered removal of deprecated BA Reporting Logs content, localization of Telegram notifications to French, restructure of Simple reporting content into an availability file, and added upgrade guidance for image synchronization; complemented by minor wording corrections to improve clarity and consistency.
March 2025: Documentation-focused delivery for the Centreon documentation repository. Delivered key features that improve upgrade guidance, lifecycle visibility, and integration docs, plus targeted command corrections to increase accuracy and reliability across Debian/RPM deployments. This work enhances deployment confidence, reduces operational risk, and supports faster onboarding and cross-version consistency.
March 2025: Documentation-focused delivery for the Centreon documentation repository. Delivered key features that improve upgrade guidance, lifecycle visibility, and integration docs, plus targeted command corrections to increase accuracy and reliability across Debian/RPM deployments. This work enhances deployment confidence, reduces operational risk, and supports faster onboarding and cross-version consistency.
February 2025 monthly summary for Centreon Documentation improvements and localization (repo: centreon/centreon-documentation).
February 2025 monthly summary for Centreon Documentation improvements and localization (repo: centreon/centreon-documentation).
January 2025 – Centreon Documentation: Delivered targeted documentation updates across Access Control, Charting/Navigation, Resource Management UX, and upgrade guidance. While there were no major software bugs fixed this month, the updates corrected inaccuracies, clarified behavior (e.g., adding a host includes all its services), and enhanced workflow guidance. The work improves onboarding, reduces support queries, and establishes consistent terminology and upgrade processes. Technologies demonstrated include meticulous documentation, version control discipline, and cross‑team collaboration.
January 2025 – Centreon Documentation: Delivered targeted documentation updates across Access Control, Charting/Navigation, Resource Management UX, and upgrade guidance. While there were no major software bugs fixed this month, the updates corrected inaccuracies, clarified behavior (e.g., adding a host includes all its services), and enhanced workflow guidance. The work improves onboarding, reduces support queries, and establishes consistent terminology and upgrade processes. Technologies demonstrated include meticulous documentation, version control discipline, and cross‑team collaboration.
December 2024 monthly summary for centreon/centreon-documentation focusing on API documentation enhancements and documentation quality improvements. Key work: HTTPS support in MAP API docs with UI Tabs; consistency improvements and Debian upgrade instructions across versions.
December 2024 monthly summary for centreon/centreon-documentation focusing on API documentation enhancements and documentation quality improvements. Key work: HTTPS support in MAP API docs with UI Tabs; consistency improvements and Debian upgrade instructions across versions.
November 2024 highlights for centreon/centreon-documentation: delivered focused documentation improvements that clean up deprecated content, streamline deployment guides, clarify security-related policies, and align docs with current infrastructure. The changes include removal of obsolete ChatOps documentation, an improved deploy poller docs flow with a hostname step before installation commands, explicit clarification of password expiration policy, deprecation/removal of ot-iws-isilog integration docs, and updating HTTPS mode guidance. Additionally, MariaDB upgrade step was removed from upgrade guides to simplify the upgrade experience. These changes reduce maintenance burden, minimize user confusion, and strengthen security posture, while enabling faster onboarding and safer configuration.
November 2024 highlights for centreon/centreon-documentation: delivered focused documentation improvements that clean up deprecated content, streamline deployment guides, clarify security-related policies, and align docs with current infrastructure. The changes include removal of obsolete ChatOps documentation, an improved deploy poller docs flow with a hostname step before installation commands, explicit clarification of password expiration policy, deprecation/removal of ot-iws-isilog integration docs, and updating HTTPS mode guidance. Additionally, MariaDB upgrade step was removed from upgrade guides to simplify the upgrade experience. These changes reduce maintenance burden, minimize user confusion, and strengthen security posture, while enabling faster onboarding and safer configuration.
Monthly highlights for 2024-10 focusing on documentation quality and deployability in the centreon-documentation repository.
Monthly highlights for 2024-10 focusing on documentation quality and deployability in the centreon-documentation repository.

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