David Delassus

CEO & Co-Founder at Link Society


December 16th, 1993

Lille, France

2 days / week

DevOps Engineer

📝 Bio

I’m an autodidact software developer since 2005, with a high interest in Cloud Computing, Automation, and building softwares that are easy to setup and easy to use.

I believe in Open Source, stigmergy and people’s potential for the best.

I am currently working on:

Github Contributions
Github contributions chart

📰 Articles

Read more on: LinuxFR Medium

🤹 Skills

Operating System Windows, Linux, BSD
Programming Languages C, C++, Python (2.7+, 3.4+), Go, Rust, Javascript (ES5, ES6), Erlang, Elixir, PHP (5, 7), Shell Scripting, Perl, Lua, Java, Assembly x86
Frontend Libraries VueJS, React, EmberJS, jQuery, ExtJS
Backend Libraries Django, Flask, ExpressJS, Socket.IO, Phoenix
System Administration Ansible, Kubernetes, Rancher, Docker
Continuous Integration & Deployment Jenkins, Rundeck, ArgoCD, Tekton, Datapio
Supervision Nagios, Shinken, Centreon, Icinga, Zabbix, Prometheus, Kubirds
Databases PostgreSQL, MySQL, MariaDB, MongoDB, Riak
Big Data & Machine Learning ElasticSearch, SolR, Tensorflow, scikit-learn, IPython (Jupyter), Talend
Web Servers Apache2, Nginx, lighttpd
High Availability HAProxy, Traefik, Keepalived, MetalLB
Virtualization VirtualBox, libvirt, Xen, VMWare
Other OpenLDAP, RabbitMQ, Kafka

📢 Languages

English Fluent
French Native

📅 Experience

November 2011 9h37 SAS
June 2013 Python Software Developer

Context: Internship at the software development division


  • Development of internal tooling for sales and IT teams
  • Implementation of CPS (Carte de professionnel Santé) based authentication in Ubinect, with LemonLDAP::NG
  • Development of statistical views in Ubinect
July 2013 Capensis
November 2016 Python Software Developer / System Administrator / Trainer

Context: Development of an Open Source hypervisor: Canopsis


  • Development of data collectors for Canopsis
  • Development of processing engines for Canopsis
  • Development of widgets for the Web UI of Canopsis
  • Implementation of installation procedure of Canopsis (shell based, then Ansible)
  • Installation on end-user’s infrastructure (RATP) and application management
  • Documentation of the installation and exploitation procedure of Canopsis for RATP
  • End-user training for Canopsis at RATP
  • Quality Assurance procedure with end-users at RATP
  • Development of a Graph Database for a universal CMDB
  • Python training with Pôle Emploi during many POE
  • Implementation of High Availability for Canopsis
2015 Freelance Teacher

Context: First-year university courses


  • C & Python training with classrooms of 30 students on average
November 2016 ELONET
February 2017 Freelance PHP / Python Developer

Context: Feature Development for the projects of the software editor ELONET


  • Development of plugins for Dolibarr
  • Development of a monitoring solution to observe access to mails attached files
  • Development of an alerting system for the decentralized supervision software: Decmon
2019 Freelance Teacher

Context: 4th and 5th year university courses


  • C Development for Arduino
  • Advanced Javascript Development
  • Web Development with Symfony
  • Prestashop plugin development
  • Linux System Administration
  • Advanced Network Architecture
  • Data Transformation and integration with Talend
  • Data Visualization
March 2017 Scille
March 2018 Freelance Python Developer

Context: Feature development for the projects of the software editor Scille with the Ministère de l’intérieur and the Ministère de la défense


  • Implementation of replication between MongoDB and PostgreSQL for the Analytics team of the SIAEF project at the DGEF
  • Improvements on the test suite of the SIAEF project
  • Implementation of a PostgreSQL backend for the Open Source secure cloud software Parsec
  • Implementation of folder synchronization for Parsec
April 2018 PROXIAD
June 2018 Freelance Python Developer / System Administrator

Context: Feature Development for Big Data projects at IT-CE


  • Implementation of an automated deployment solution of Python/R environments on an Hadoop/Spark based infrastructure
  • Tooling Documentation
July 2018 PROXIAD
September 2020 Freelance DevOps Engineer

Context: DevOps engineer for the Retail teams at Decathlon


  • Weekly delivry of internal applications in Pre-Production environments
  • Automation of Integration and Deployment workflows
  • Coaching of developers on Production Deployment workflows
  • Development/Pre-Production/Production infrastructure management
  • Micro Service infrastructure management (secret management, CI/CD, …)
July 2017 Link Society
On going CEO & Co-Founder

Context: Software Editor


  • Development of a Patient Follow-Up software for Radiology departments: SPRadio
  • Development of a mobile application for the organization 3-6-9-12
  • Development of a Continuous Integration and Deployment platform: Datapio
  • Development of a Dockerized Supervision engine: Kubirds
  • Teaching courses (with ESTIAM and/or SUPINFO)
  • Marketing strategy & Business Development
  • Development of a Kubernetes as a Service platform based on k0s