Jimmy Denisot

Zabbix Consultant — Somone · Apprenticeship

Design and improvement of monitoring solutions around Zabbix, with work involving databases, automation and testing.

• Hardware discovery in Python, exposed through Zabbix low-level discovery (LLD)
• Contribution to the Zabbix Recorder Firefox extension: refactoring, test automation, secret masking

IT Support & Infrastructure — ITnYOU · Apprenticeship

Remote and on-site technical support for various clients, and operational maintenance of Microsoft infrastructures.

• Level 1 to 3 support, remote and on-site
• Microsoft 365, Active Directory and Azure administration
• Handling of production incidents and email security alerts (Proofpoint)

Full-stack Web Developer — CraftValue · Internship

Second-year internship: back-end development for a multimedia platform.

• Design and development of a RESTful API in NestJS
• User authentication, video and project management
• Integration of AWS services with Pulumi

IT Intern — ATC France · Internship

First-year internship within the IT department.

• Troubleshooting, installation and maintenance of IT equipment
• Set-up of new offices and their equipment, including Internet connectivity

Grande École Programme in Computer Science — SUPINFO · Five-year higher education programme — PGE5 / Master's level · Cloud, systems and networking

Broad computer science programme covering software development, systems, networking, cloud, cybersecurity and technical project management.

Infrastructure co-lead — LCSP

As infrastructure co-lead, I contribute to the administration and evolution of the laboratory's virtualization, network, monitoring and internal service environments.

Founder and President — SUPINFRA Paris

Student association dedicated to managing IT equipment made available at SUPINFO Paris and supporting its use for student projects and organizations.

• Prepared a fleet of 30+ workstations; co-led Tech Time workshops, including a cybersecurity CTF

PostgreSQL / TimescaleDB monitoring with Zabbix — Somone

Designed a Zabbix 7.0 template for PostgreSQL and TimescaleDB storage monitoring: a Python collector discovers databases, tables and hypertables, with installation and preflight scripts.

• Automatic discovery of PostgreSQL databases, tables and TimescaleDB hypertables
• Table, index, TOAST and total sizes; chunks and compression

LCSP Virtualization Infrastructure — LCSP

Five-node Proxmox cluster with Ceph storage, hosting the lab's services as virtual machines and LXC containers.

• Five-node Proxmox cluster, built and joined node by node
• Ceph storage for virtual machines, CephFS for shared storage

EvilCorp — Secure and Resilient Mail Infrastructure — SUPINFO

A secure, resilient mail infrastructure designed and deployed as a two-person project — DNS, SMTP/IMAP, internal PKI and TLS, network segmentation, encrypted backups and high availability.

• Internal certificate authority, kept separate from the mail server, issuing its TLS certificate
• SELinux hardening — contexts fixed, no AVC denials on the tested scenario

Fleetman — Deploying a Microservices Application on Kubernetes — SUPINFO

Deploying and adapting an existing microservices application to a multi-node Kubernetes cluster as a two-person project — manifests, persistence, replication and tolerance to losing a node.

• An application built for Docker Compose, rewritten as Kubernetes manifests
• Critical components replicated, loss of a worker node tested