Experience

Since Aug 2019

Infrastructure and Software Engineer

Zenly

Design and implementation of a graph-based infrastructure-as-code framework to manage compute and cloud resources, permissions and applications deployment (Git, TypeScript and CDK for Kubernetes);
Development of health monitoring system for Kubernetes objects providing real-time Slack notifications (custom Kubernetes controller, PostgreSQL and Go);
Build of a sidecar-less mesh-like system for Kubernetes clusters production traffic (Istio and Go);
Development of various internal tooling for the engineering teams;
Day-to-day operation of a live traffic and latency-sensitive infrastructure.

May 2016 – Jul 2019

Lead Operations Engineer

happn

Design and build of a real-time analytics event funneling service (Go and Google Cloud Pub/Sub);
Development of monitoring and metrics collection tools and plugins (Go, Python and Collectd);
Development of cloud platform management helpers and utilities (Python and Google Cloud Platform);
Design and implementation of the infrastructure industrialization system (Salt);
Involvement in back-end architectural design;
Day-to-day operation of the infrastructure and roadmap management;
Operations engineering team leader (3 collaborators).

Aug 2014 – Apr 2016

Lead Systems and Network Engineer

Diabolocom

Setup of a configuration management and provisioning solution to automate infrastructure and services deployments (Salt, FAI and Foreman);
Design and implementation of a monitoring and metrics collection infrastructure (Collectd, RRDtool, InfluxDB and SNMP);
Design and setup of a virtualization platform (libvirt and KVM);
Design of a redundant and fault-tolerant services infrastructure (LVS, Keepalived and BIRD);
Setup of SIP-I infrastructure to interconnect with other telecommunications operators;
Development of a real-time RADIUS accounting service, indexing the telecommunication platform calls metadata (Go, Elasticsearch and Kibana);
Design, setup and day-to-day operation of the telecommunication platform and its services;
Systems and network engineering team leader (5 collaborators).

Dec 2011 – Jul 2014

Lead Systems and Network Administrator

e-merchant (Pixmania Group)

Implementation of a web caching and HTTP reverse proxy infrastructure (Varnish);
Build of an LDAP infrastructure centralizing information about the development teams, their roles and permissions (OpenLDAP, Active Directory, Python, Bash and Puppet);
Design of a distributed job scheduling infrastructure (Gearman, Python and PHP);
Design and setup of a centralized data exchange platform (ProFTPD, PostgreSQL, and Python);
Development of monitoring and time series visualization front-ends (Python, HTML and JavaScript);
Day-to-day operation of the e-commerce platform and services;
Technical referent for development teams;
Systems administration team co-leader (10+ collaborators).

Nov 2010 – Dec 2011

Systems and Network Administrator

Newsweb (Lagardère Active)

Development of a centralized applicative logging system (Python, PHP and MongoDB);
Development of a release management utility for deploying code to production systems (Python and Rsync);
Design and setup of an Apache hosting environment supporting multiple concurrent PHP versions;
Day-to-day operation of a high-traffic web hosting platform.

Jan 2007 – Nov 2010

Systems and Network Administrator

BUF Compagnie

Design and implementation of a load-balanced LDAP infrastructure, centralizing system users and groups, messaging accounts, and NFS mount points (OpenLDAP, LVS and Keepalived);
Design and implementation of a redundant DNS infrastructure, with revision control and automated deployment (Bind and Subversion);
Build of an automated installation and configuration system (FAI, Cfengine and Subversion);
Development of an inventory and resource collection tool (Python, C and SNMP);
Administration of the decentralized archiving system, backed by hard disk drives and magnetic tapes (Rsync and Amanda);
Multi-site network architectural redesign, via dedicated optical fibers and point-to-point VPN connections;
Day-to-day operation of 1000+ GNU/Linux servers and desktops;
Day-to-day network infrastructure management (Packet Filter, Netfilter and VLAN).

Oct 2005 – Sep 2006

Systems and Network Administrator (work-study contract)

UVSQ

Development of both monitoring and logging solutions for the university wireless infrastructure (PHP and OpenLDAP);
Wireless infrastructure deployment across various university’s facilities: access-point placement study and general setup;
802.1x authentication implementation, with automatic VLAN tagging based on user’s clearance level (FreeRADIUS);
Day-to-day operation of “Institut des Sciences et Techniques des Yvelines” public engineering school IT infrastructure.

Education

2014: “Expert en Informatique et Systèmes d’Information” (Expert in Computing and Information Systems); Ingésup, Paris
2006: “Licence professionnelle en Intégration de Système et Réseaux Numériques Distribués”; University Institute of Technology, Vélizy
2005: “Brevet de Technicien Supérieur en Informatique de Gestion”; Geoffroy Saint-Hilaire High School, Étampes
2003: “Baccalauréat en Sciences des Techniques Industrielles”; Geoffroy Saint-Hilaire High School, Étampes