System Administrator Engineer, Valbonne

Job Description Summary: Fortinet is looking for System Administrator Engineer to join the EMEA Customer Readiness Testing team in Sophia Antipolis Technical Assistance Centre, France. This is a technical role, to manage and optimize a technical infrastructure dedicated to Fortinet product validation projects. The role involves maintaining and improving a heterogeneous environment composed of Linux servers, virtualization systems, Docker containerization, and various testing, monitoring, and storage solutions.

The Customer Readiness Testing team performs tests designed to specifically replicate the customer environment in which the Fortinet products are used with the end goal to improve confidence in our released software builds.

The position requires candidates with a solid background in Linux system administration, virtualization and container technologies, and infrastructure automation, combined with a collaborative mindset and attention to detail.

The position entails an excellent ability to clearly write all detailed information and to understand and interpret written information.

Key Responsibilities: Infrastructure Management

Install, configure, and maintain Linux servers and virtual machines in production and development environments

Maintain and administer Docker infrastructure:

Deploy and monitor containerized applications

Manage Docker images, containers, volumes, and private registries

Ensure container security and network configurations

Administer Traffic Generators (FortiTester / Spirent / Ixia)

Provision or assist in hardware provisioning in CRT datacenter

Responsible for upgrading and maintaining TG hardware/software following ITIL methodology

Manage TG resources by assigning TG to customer projects

Create and maintain TG management VM templates

Manage access to CRT application flows catalog

Collect post-mortem TG usage experience and share for analysis

Provide support to customer projects by handling JIRA TG incidents/issues until resolution

Interface with vendor support to follow up external tickets and escalations about TG hardware/software

Manage monitoring and alerting solutions (e.g. Zabbix)

Daily monitor performance, availability, and resource usage of the systems

Perform regular system patching, upgrades, and security hardening

Implement and maintain backup and disaster recovery strategies

Ensure high availability and disaster recovery of core infrastructure services

Continuously improve system performance, observability, and reliability through proactive monitoring and capacity planning

Document operational procedures, configurations, and troubleshooting guides

Automate system administration tasks using Bash, Python, or tools like Ansible

Application Support

Administer and maintain observability tools:

Grafana: Manage dashboards, alerts, and data sources

Elasticsearch: Optimize indexing, manage data retention, and monitor cluster health

Kibana: Configure visualizations, dashboards, and integrations with Elasticsearch

Troubleshoot application-level issues and collaborate with developers or support teams for resolution

Ensure performance tuning and availability of key applications

ITIL Process Adherence

Incident Management: Respond to and resolve system and application incidents according to SLA

Problem Management: Identify root causes of recurring issues and propose long-term solutions

Change Management: Plan, test, and implement changes while minimizing service disruptions

Skills and Attributes Requirements:

Proficient spoken and written English

Strong experience in Linux system administration (Debian)

Hands-on experience with VMware ESXi / vCenter or Proxmox for virtual machine management

Proficiency in Docker and container lifecycle management

Familiarity with ElasticSearch, Grafana, or similar monitoring/analytics tools

Experience with storage management, backups, and network configuration in a Linux/VMware environment

Good knowledge of shell scripting (Bash, Python, or similar) for automation and maintenance tasks

Understanding of network and security fundamentals (DNS, routing, switching, firewalls)

Ability to troubleshoot complex infrastructure issues with a structured approach to problem solving

Very good presentation and technical documentation skills

Good understanding of Web application concepts, security and vulnerabilities

Experience with CI/CD pipelines or infrastructure as code (Ansible, Terraform, etc.)

Knowledge of test automation environments or software validation workflows

Familiarity with Git, Jenkins, or similar DevOps tools

Exposure to high-availability or scalable architecture

Work experience with Fortinet products an advantage

Positive, communicative and customer-oriented attitude

Ability to work in multicultural team environment

Educational and Experience Requirements:

Four years or more experience in system admin (IT or technical support)

Graduate of Bachelor or Engineering school in computer science

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