Freelancer profile translated to English.

Description

Need a transition CTO or an expert to stabilize a saturated infrastructure?

With over 10 years of experience, I have managed parks of 1300+ servers for major players like Covea (Randstad Digital) and handled portfolios of 280 critical applications in the nuclear sector for EDF.

What I bring to your project:

Infra & Cloud Expertise: Design of scalable, secure, and resilient architectures (Azure, Linux, Docker).

Observability & Performance: Implementation of advanced monitoring (Dynatrace, Grafana, Zabbix) to anticipate and resolve incidents before they impact your business.

Modern Backend & Data: Mastery of modern distributed stacks (Temporal for workflows, SpiceDB for authorizations, ClickHouse for analytics).

Strategic Leadership: Former CTO and Project Manager, I speak equally to developers and management to ensure deadlines and budgets are met.

Whether you are a fast-growing startup or an established company seeking a risk-free cloud migration, I put my expertise as a "technical firefighter" and architect at your service.

Languages

French
Native or bilingual

Workplace preferences

Can work on-site

Paris (up to 50km)

Lovelace
CTO & Lead Fullstack Developer
TECH
June 2024 - Today (2 years)
Description: "Technical leadership and complete development of a Deep-Tech startup. I designed the distributed architecture and developed 100% of the stack: complex Backend, responsive Frontend, and resilient Infrastructure."

Key achievements:

Fullstack Development from A to Z: Creation of the Backend (Node.js/Python), Frontend, and Landing Page with a focus on UX and performance.

Distributed Architecture: Design of a complex system integrating Redpanda (Streaming), Temporal (Workflow Orchestration), and SpiceDB (Fine-grained authorization management/Zanzibar).

Data & AI: Implementation of an advanced Data stack with ClickHouse (OLAP Analytics), Weaviate (Vector DB for AI), and Typesense (Full-text search).

Security & Network: Complete isolation of services via Tailscale and centralized secret management via Infisical.

Infrastructure-as-Code: Orchestration of all services (PostgreSQL, Redis, MinIO) via Docker Compose on an Ubuntu environment.

Project Management: Writing technical specifications and Agile methodology project management from start to finish.
Clickhouse PostgreSQL docker-compose Temporal Python
Covéa
Senior Consultant / IT Project Manager & Infrastructure
BANKING AND INSURANCE
June 2023 - June 2024 (1 year)
Orléans, France
Description:
Expertise in operational maintenance (MCO) and performance management for a park of 1300 critical servers. I ensured service stability while automating weak signal detection.

Key achievements:

System Administration & Expertise: Management and maintenance of a hybrid park of 1300 servers (Windows, Linux, AIX).

Observability & N2/N3 Diagnostics: Advanced monitoring management with Dynatrace, Zabbix, AppDynamics, and ELK for rapid recovery of critical services.

Automation & SRE: Development of Selenium scenarios with Python to automate availability tests and processing of metrics to anticipate incidents (weak signals).

Data Visualization & Reporting: Creation of complex dashboards in Grafana, Kibana, and Zabbix for accurate reporting of infra/app availability to management.

Project Management & Architecture: Close collaboration with architects and developers for monitoring implementation and writing technical documentation post go-live.

Management & Leadership: Close management of 3 technical collaborators (career monitoring, training, management liaison).
Python Grafana Zabbix IT Architecture
open
IT Portfolio Manager / Application Manager
May 2020 - February 2022 (1 year and 9 months)
Description:
Responsible for a portfolio of critical applications for the nuclear sector, ensuring high availability and maximum security in a highly constrained environment.

Key achievements:

Sensitive Application Management: Responsibility for 280 critical high-availability applications according to ITIL processes.

Team Management: Supervision and leadership of a team of 6 specialized collaborators.

Cross-functional Coordination: Interface between technical teams, developers, and the client for application updates and evolutions.

Crisis Management: Project-based management of critical incidents to restore services within the allocated timeframes.

Performance Reporting: Weekly reporting to management through performance indicators and project follow-up audits.
Dynatrace IT Strategy IT Project Management