Freelancer profile translated to English.
Back to original languageAbout Rony
Freelance DevOps Consultant
Certified CKAD, AWS Certified Developer Associate, and Azure Fundamentals, I support companies in setting up and securing Cloud and Kubernetes infrastructures. My experience includes:
Automation and CI/CD: Terraform, Ansible, Jenkins, GitLab CI.
Security and Compliance: SecNumCloud-labeled projects (Kubernetes hardening, network flow rules).
Observability: monitoring and alerting via Prometheus, Grafana, ELK.
Multi-cloud: AWS, Azure, OpenStack, OVHcloud.
Passionate about the DevOps culture, I focus on agility (SAFe, Scrum), optimizing deployment processes, and team collaboration. I help my clients reduce time-to-market, improve service reliability, and enhance application resilience.
Seeking missions (remote or on-site) to contribute to DevOps/SRE projects, I remain open to any digital transformation opportunities requiring advanced skills in Cloud, Kubernetes, and automation.
French
Native or bilingual
English
Fluent
Can work on-site
Paris (up to 10km)
Experience
- GTTDevOps ConsultantMarch 2025 - Today (1 year and 3 months)Saint-Rémy-lès-Chevreuse, France• Technology Analysis & Selectiono Identification of configuration drifts, performance bottlenecks, and security vulnerabilities.o Evaluation of candidate platforms and tools based on scalability, maintainability, and compliance criteria.o Recommendation of OpenShift as the target container platform, accompanied by GitOps tools for declarative operations.• Migration Strategy & Executiono Design of a phased migration plan to ensure a seamless transition of workloads from kubeadm to OpenShift.o Definition of cluster architecture models—control plane sizing, network topologies, and storage configurations—aligned with organizational SLAs.• Platform Engineering & GitOpso Implementation of a "Platform Engineering" team model, centralizing shared services as reusable platform components.• Automation & CI/CDo Automation of OpenShift cluster provisioning and configuration using Terraform and Ansible modules.• Standards & Documentationo Drafting best practice guides for platform engineering, documentation on GitOps workflows, and runbooks for on-call operations.o Definition of RBAC policies, network policies, and security contexts in compliance with organizational governance.• Technical Environmento Container Platforms: kubeadm, Red Hat OpenShifto Platform Engineering & GitOps: OpenShift GitOps (Flux CD), Helm, Kustomizeo Infrastructure as Code: Terraform, Ansibleo CI/CD & Version Control: GitLab CI, Gito Scripting & Tools: Python, Bash, JIRA, Confluenceo Monitoring & Logs: Prometheus, Grafanao Methodologies: Platform Engineering, GitOps, zero-downtime migration, infrastructure standardization, SAFE, agile
- ENEDIS (Ex ERDF)Devops/SRE ConsultantJuly 2023 - December 2024 (1 year and 5 months)Main mission:Develop, maintain, and automate the common technical foundation for the NEX’US/CCMA teams, while facilitating the migration from ZSev1 to the private cloud ZseV2 based on Openstack.Key achievements:• Secure infrastructure:o Design and deployment of a hybrid cloud infrastructure with the OpenStack suite on Linux servers.o Administration and security of the Openstack solution.o Implementation of hardening policies for Kubernetes clusters.o Definition of network flow management rules to secure Kubernetes environments.• Monitoring and alerting:o Implementation of a comprehensive monitoring and alerting solution with Prometheus and Grafana to ensure system availability and performance.• Automation and CI/CD:o Construction and maintenance of a reliable and performant continuous deployment pipeline (CI/CD) with GitLab CI and Jenkins.o Automation of application deployment using Terraform, Ansible, and Bash.• Architecture and technical foundation:o Contribution to technological choices and platform architecture evolution.o Development and maintenance of a reusable Terraform foundation for rapid and standardized infrastructure deployment.• Migration:o Active participation in the technical migration from ZS2v1 to ZS2v2, with architectural adjustments to improve robustness and scalability.Technical environment:• Infrastructure and containers: Docker, OpenStack, Kubernetes.• Infrastructure as Code: Terraform, Ansible.• Monitoring: Prometheus, Grafana.• Languages and tools: Python, Bash.• CI/CD and versioning: Git, GitLab CI, Jenkins, Bitbucket.• Databases: PostgreSQL.• Methodology: Automation, migration, architecture optimization.
- Société GénéraleDevOps EngineerBANKING AND INSURANCEJanuary 2018 - June 2023 (5 years and 6 months)Fontenay-sous-Bois, Île-de-France, FranceProject Management Tool platform: As the environment changes, we need a new scaling platform to manage agile projects for ITIM. I was in charge of the migration from the old platform to the new VM platform.Main tasks:- Responsible for Writing requests for proposal and specification documents- Responsible for defining the physical architecture- Development of Docker container- Development of Alien4Cloud component (TOSCA specification)- Automation of application deployment.- Server MonitoringTechnologies: Ansible, Docker, Alien4cloud, AWX, Maven, Jenkins, Barman, PostgreSQL, JIRA, Confluence, Xray, JAVA, PYTHON, AWS S3, Swagger, Linux, Grafana, Prometheus, docker-compose
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Education
- Master’s degree in computer engineering and project managementEPITA: Computer Engineering2013
- Bachelor of Computer ScienceUniversity of Vincennes-Saint-Denis (Paris VIII)2010
Certifications
- ITIL® Foundation Certificate in IT Service ManagementPeopleCert2014
- AWS Certified Developer AssociateAWS2025