Grégory Maitrallain
Solution architect, software architect, DevOps leader
46 ans
En poste
Ouvert aux opportunités
Attracted to software quality since early professional years, my various experiences allowed me to enhance my skills, eventually leading me to become technical referent, then technical leader, within a team of 40 people including 25 developers, spread across Paris, London and New York.
My skills in architecture, optimization and functional analysis made me work on two brand new trading platform development projects.
In these projects, I have initiated and leaded a DevOps transition to ensure better quality in delivery in a sensitive domain.
Subsequently, my role as solution architect and DevOps leader allowed me to improve my expertise in this domain, applied to cloud, by solely managing multiple critical GitLab instances in High Availability Mode with full automation on infrastructure, software, metrology and disaster recovery plan fields to secure projects for 5000 developers.
Working in the technical office, I had the opportunity to initiate improvements in multiple fields: infrastructure-as-code, security, development environment, best practices.
My skills in architecture, optimization and functional analysis made me work on two brand new trading platform development projects.
In these projects, I have initiated and leaded a DevOps transition to ensure better quality in delivery in a sensitive domain.
Subsequently, my role as solution architect and DevOps leader allowed me to improve my expertise in this domain, applied to cloud, by solely managing multiple critical GitLab instances in High Availability Mode with full automation on infrastructure, software, metrology and disaster recovery plan fields to secure projects for 5000 developers.
Working in the technical office, I had the opportunity to initiate improvements in multiple fields: infrastructure-as-code, security, development environment, best practices.
Architecte solution, DevOps leader
Orange Business
Depuis janvier 2018
- As DevOps leader in the technology office, participation in cross-functional initiatives such as DevOps best practices, CI/CD best practices, containerization, secured cloud deployment, infrastructure as code, GitOps, Kubernetes, security scanning... Studies and trials of services like GitGuardian, Aqua, Anchore, Copilot, in various emerging domains. Initiation of a techradar to keep in touch with emerging technologies and trends, generalized to Orange Business and shared with other Orange entities.
Technologies: kubernetes, docker, podman, Terraform, Ansible, trivy, grype, anchore, Aqua, Gitleaks, GitGuardian - As software craftsman, technology watch, articles, newsletters and technical documentation writing. Trials on development environment tools and technology improving development speed and confort. Creation of multiple docker images compatible with different virtual environments shared with the team.
Technologies: Dev Container, Gitpod, Codespaces, versioned devenv - As service manager within the technology office, maintenance of critical GitLab instances for the Orange Business Factory. Implementation of DevOps and continuous delivery best practices, including the deployment automation and release management processes. Communication management with the developer community. Skill sharing with the team regarding release management.
Expertise: Release management, Communication
Tools: Ansible, GitLab, Git, Python
Plateform: Linux - As solution architect, migration of a GitLab instance to a cloud environment with a high availability architecture. Full automated deployment process (infrastructure, applications, configuration) and disaster recovery plan, while ensuring data security.
Methodologies: DevOps, 3-2-1 backup
Tools: Terraform, Ansible, Vault
Platform: Flexible Engine (Huawei cloud), OpenStack, Linux - As service manager, studying and implementing GitLab-CI within Orange Business in a DevOps fashion, which later became the standard CI/CD environment. Writing articles on security risks associated with GitLab runners. Development of a component to secure GitLab runner access in a corporate environment, used by project to register their own runners.
Technologies: Terraform, Ansible, Python, Redis, MongoDB
Platforms: cloud, OpenStack, kubernetes