Sylvain Viart

🌱 I'm also an associate of Haïbu, a committed worker-owned cooperative (French SCOP) focused on sustainable tech and digital commons. This involvement aligns with my current role as Senior Consultant | DevOps | GNU/Linux Mentor at Lydra, the main brand under which I carry out most of my missions and mentoring work. See the related experience https://lydra.fr

📌 Mission Supporting IT teams and infrastructures in modernizing their information systems, managing legacy environments, and developing technical skills. Triple role: DevOps expert, legacy facilitator, educational mentor. ✅ Key Achievements • Ansible playbook for automated infrastructure deployment of VMs with Apache NiFi • Advanced LDAP configuration and integration with Apache NiFi and Active Directory • One-on-one support with Nextcloud: installation, synchronization, and security • Setup of SSL certificates (HTTPS) and related procedures • Custom technical training and knowledge transfer (both operational and cultural) 🧰 Technical Stack • Ansible, GitLab CI/CD, Bash • Apache NiFi, Nextcloud, LDAP • Linux Debian / Ubuntu • SSL Certificates / HTTPS / OpenSSL • 100% Sovereign Client Environments 🎯 Key Skills Applied • Infrastructure automation and industrialization • Advanced Linux system administration • Legacy project management (analysis, documentation, hardening) • One-on-one mentoring and technical coaching • Technical teaching and simplification • Alignment with business constraints and budget realities

📌 Mission Technical services and mentoring offer for IT teams and projects in transition: infrastructure migration, skills development, automation, and information system modernization. Work performed in hybrid and sovereign environments. ✅ Key Achievements • Created Ansible playbooks for automated service deployment (Nextcloud) • Developed a Python FastAPI with web interface for managing Nextcloud permissions • Installed a secure digital vault on Nextcloud (GDPR compliance) • Advanced file synchronization via rclone + Google Drive • Change management support: mentoring, documentation, custom training • Legacy infrastructure upgrade (Debian & Ubuntu) • Level 2 and 3 technical support for users and technical teams 🧰 Technical Stack • Nextcloud, Ansible, Docker, Caddy, SSL Certificates • Bash, Python, FastAPI, JavaScript • Git, GitLab, GNU/Linux Debian & Ubuntu • Infomaniak Cloud, OVHCloud, DigitalOcean • rclone, Google Drive API 🎯 Key Skills Applied • Infrastructure automation (IaC) • Backend/API development & technical user interface • Advanced system administration & security • Technical communication and knowledge transfer • Technical mentoring and change support • R&D project management and structured documentation

📌 Mission Head of cloud operations and IT production. Team management and operational maintenance of a multi-cluster Kubernetes infrastructure (6 clusters, 1,000+ SQL databases). Implementation of technical requirements for ISO 27001 certification. ✅ Key Achievements • Redesign of legacy infrastructure and complete technical documentation • Wrote and deployed Terraform plans (>100 resources) to automate cloud provisioning • Management of 6 managed Kubernetes clusters (AKS) with multi-tier architecture • Developed Python APIs for dynamic management of Kubernetes Ingress rules • Supported ISO 27001 certification: requirement formalization, process documentation • Implemented a Disaster Recovery Plan (DRP) for critical infrastructures • Led internal training, developer support, and knowledge transfer • Provided advanced support and resolved critical production bugs • Coordinated distributed technical supervision via video calls and multi-team (intercontinental) collaboration 🧰 Technical Stack • Azure Cloud, Office 365 • Kubernetes AKS, Terraform, Docker • Azure DevOps CI/CD • Git, Ansible • Bash, Python • GNU/Linux (hybrid environment) 🎯 Key Skills Applied • Automated cloud infrastructure deployment (Terraform, CI/CD) • High availability production management • Cloud architecture security and ISO 27001 compliance • Technical leadership and team training • Remote collaboration across cultures and time zones • Client and strategic vendor relationship management

Part of the production team on web hosting platform and support L3

freelance devOps and developer. I joined Oxalis team and created the IT group named : les-numériques We work together on challenging projects based on innovation, governance, money, legacy migration to public cloud, sharing practice and skills, open-source and more!

Linux programming: MailCleaner software development on LAMP: perl, bash, python, php, MySQL, exim, MailScanner, code repository migration from legacy CVS to git. Code Unit testing, automated deployment script design. Process refactoring: collecting needs, writing procedure, proposing and implementing reusable tools and methods, prototyping software configuration structure. Software configuration management: deployment, configuration and customizing Redmine ticketing software for use as our Customer issues tracking service. Customer support: Ensuring worldwide customer support Level 1-2-3, English and French through our web interface and by phone. Knowledge Management: Populating knowledge base and technical documentation, diagrams.

Consulting Services: IT Trainer − IT System Audit – IT Cost rationalization Some IT system consultancy missions: Trainer for advanced mass emailing skill (DKIM, SPF, domain, load analysis). Migration of an email database to Mailman mailing list system, with a dedicated plugin in python for automatic attachment move to a remote hosting. See Github AttachmentMove Remote support and maintenance of dedicated Linux server (apache, php, svn, bind, mysql, java, firewalling). JavaScript integration and debugging for datavision.

IT Manager: Head of the information technology infrastructure maintenance and development. IT System Management: Improvement of IT staff results through communication of job expectations; project planning, monitoring and result assessment. Knowledge Management: Documentation writing, creation of IT procedures, incident reporting, audit, developers training. System R&D: Technology watch, testing, need-driven analysis, prototyping, benchmarking, optimization. Studies and tests about the impact of new technologies both on development activities and performance results. Team Management: project partitioning, goal splitting and task management, workload management, recruitment.

http://frhack.org/ International Cyber Security Conference

System Administration: Linux and Windows, setup of the enterprise backup strategy. R&D project Auditing. Management: Php developers recruitment and training, junior sysadmin coaching. Website Development and Documentation: Php, MySQL, wiki documentation writing, task management and bug tracking. Bilingual Skills: English and French.