In brief
Independent instructor and engineer since 2017, specialising in DevOps, SRE, Cloud Native, and generative and applied AI. Designs and delivers training on Docker, Kubernetes, Ansible, GitLab, ArgoCD, observability, DevSecOps and generative AI, both in-house and open-enrolment. More than a thousand people trained, on site, remotely and online. Author of some twenty technical books, with books and articles translated into French, Korean, Chinese, Japanese and Russian, and cited as references in peer-reviewed scientific literature. Founder of FAUN.dev.
Areas of work about ten families · 42+ programmes
- Kubernetes and its ecosystemKubernetes, Helm, Rancher, RKE2, K3s, Fleet, Longhorn, cluster administration, and Kubernetes for development teams
- ContainersDocker, Docker Compose, Portainer, from first steps to advanced features
- Infrastructure as code and automationAnsible, Ansible Automation Platform, AWX, SaltStack
- CI/CD and GitOpsGitLab CI, ArgoCD, GitHub Actions, continuous delivery pipelines
- Observability and SREPrometheus, Grafana, SRE Foundation, production monitoring and metrics, and the distributed-systems operating practices as Google formalised them
- DevSecOps and securitySecuring the delivery chain, vulnerability scanning, hardening images and clusters, NeuVector
- Generative AI and LLMsLanguage models, retrieval-augmented generation (RAG), fine-tuning, agents, local AI with Ollama, Model Context Protocol
- Prompt engineeringPrinciples, good practice, tooling, designing prompts for production
- Coding assistants and productivityGitHub Copilot, Copilot Studio, generative AI and AI agents applied to development, content and recruitment, designing no-code agents
- Executive briefingsDigital transformation, the stakes and uses of distributed systems and Cloud Native, the state of DevOps practice, emerging technologies and artificial intelligence
Delivered in-house or open-enrolment, on site or remotely. One to five days, longer depending on the programme. Course material and lab exercises designed and maintained in-house.
Companies trained more than 55 sessions delivered
Microsoft
Intel
Société Générale
Michelin
French Ministry of the Armed Forces
French Ministry of National Education
French Ministry of the Interior
Orange
EDF
Iliad / Free
French National Health Insurance
City of Strasbourg
Le Havre Hospital Group
General Electric
Synechron
Sagemcom
Cryostar
Mediagenix
Config
Echosens
Coyote System
Viadialog
RS2i
Amphenol Socapex
4JS
NTI
GPSEA
CentralPay
Lazeo
Kabia
Vademi
UOC
Sectors - defence and security · health and hospitals · banking, finance and payments · social protection · industry and energy · telecoms and carriers · public sector and local government · national education and research · software vendors and SaaS · media and broadcasting · transport and mobility · consulting and digital services.
Publications 21+ books · most with an exercise kit
Containers and Kubernetes
Painless Docker2ᵉ édition
Cloud Native Microservices With Kubernetes2ᵉ édition
Helm In Practice
End-to-End Kubernetes With Rancher, RKE2, K3s, Fleet, Longhorn And NeuVector
CI/CD, GitOps and automation
Cloud Native CI/CD With GitLab
GitOps The Hard Way With ArgoCD
The Ansible Workshop
AWX in Action
SaltStack For DevOps
Learn Git In A Day
Observability and security
Observability With Prometheus And Grafana
DevSecOps In Practice
Generative AI and coding assistants
OpenAI GPT For Python Developers2ᵉ édition
LLM Prompt Engineering For Developers
Practical MCP With FastMCP
Local AI Engineering With Ollama
Building With GitHub Copilot
Copilot Studio in Action
Generative AI For The Rest Of Us
The Augmented Developer
Development
Python From Zero To Microservices
Distribution - published and distributed by FAUN.dev, Amazon, Packt, Hanbit Media, DMK Press, O'Reilly, Leanpub, Google Books, Kobo and Fnac. Several titles ranked as category bestsellers on Amazon and Leanpub, across several periods. Books listed on Read This Twice.
Online courses - courses, quizzes and learning paths published on FAUN.sensei(), a platform designed and built in-house.
Cited by research researchers and doctoral candidates · peer-reviewed publications
Books taken up as references by researchers and doctoral candidates, in peer-reviewed work.
2026eJournal of Tax Research
Tax, LLMs, RAGs and some soft logic
Bernie Walrut · eJournal of Tax Research, UNSW Sydney · vol. 24, no 1, p. 91-140
LLM Prompt Engineering for Developers cited eight times, as a reference on tokens, programming interfaces and the architecture of GPT models.
2025FSE 2025 · ACM
What do professional software developers need to know to succeed in an age of Artificial Intelligence?
Kam, Miller, Wang, Tidwell, Lee, Malyn-Smith, Perret, Tiwari, Kenitzer, Macvean, Barrar · Proceedings of the 33rd ACM International Conference on the Foundations of Software Engineering · DOI 10.1145/3696630.3727251 · arXiv 2506.00202
LLM Prompt Engineering for Developers and The Augmented Developer cited in the bibliography. Authors affiliated with Google and Microsoft.
2025SIGCSE 2025 · ACM
The AI-Enhanced Software Engineer: A Snapshot of the Profession
Proceedings of the 56th ACM Technical Symposium on Computer Science Education, vol. 2 · DOI 10.1145/3641555.3705263
Work cited in a study on how the software engineering profession is changing in the face of AI.
2024ProfIT AI 2024
Development of an Intelligent Search Engine using GPT model for GrantsForScience platform
4th International Workshop of IT-professionals on Artificial Intelligence · CEUR Workshop Proceedings, vol. 3777
OpenAI GPT For Python Developers cited in the bibliography as an implementation reference.
2023SSRN
Causality Network Formation with ChatGPT
Social Science Research Network · DOI 10.2139/ssrn.4464477
Work cited in a study on causality network formation assisted by a language model.
Career
2017 → now
Freelance consultant, eralabs
Cloud Native and DevOps consulting: Kubernetes architecture, CI/CD, infrastructure as code, observability. Advanced in-house training, including at Microsoft and Intel.
2016 → now
Founder, FAUN.dev
A platform and community for engineering teams. Technical newsletters including DevOpsLinks, community-published articles, a tool directory with reviews, comparisons, alternatives and personal toolboxes, and FAUN.sensei(), the home for online courses, quizzes and learning paths. An audience of 100,000 developers and engineers, including teams at GitHub, Netflix and Shopify.
2017 → now
Advisor to technology startups
Mappear, Cloudplex and others. Supporting founding teams on technical depth, business leverage and scaling. At Mappear, from 2017 to 2020, technical assessment of candidates.
2024 → now
Founder, Ragger
An infrastructure and API platform for conversational agents built on retrieval-augmented generation.
2020 → now
Founder, The Chief I/O
An online publication covering Cloud Native technologies and software engineering.
2020 - 2025
Founder, MarketToDev
A marketing platform for companies addressing an engineering audience.
2017 - 2018
CTO and co-founder, Incruizer
Led a web and mobile team, from design through delivery.
2015 - 2017
Chief technical architect, Weblib
Hybrid Edge, Fog and Cloud architecture. SLA raised to 99%, a team built, and a container-based DevOps pipeline established.
2014 - 2015
DevOps and continuous integration engagements - ERDF, EDF, Michelin Travel Partner, Inovans
Centralised configuration management, deployment automation, RHEL operations under heavy load. At ERDF, pre-deployment configuration management cut from 5 days to 30 minutes.
2010 - 2013
Co-founder, Mouat'n / HSTN
Open source platforms for civic participation and OpenData, for civil society, NGOs, local government and political organisations. Training on privacy and communications security.
2010 - 2014
Independent software engineer
Managed Linux hosting on virtual private servers: installation, hardening, monitoring and backup. Custom development and training for client teams. Alongside that, the design of a real-time multiplayer strategy game on Android with a Java server, at Focus Corporation.
Education
- 2013Lund University, Sweden - Social innovation in a digital context
- 2012Higher Institute of Computer Science, Tunis - Research master's, software engineering
- 2010ISSAT, Tunisia - National engineering degree, real-time computing
- 2007INSAT, Tunisia - University degree, networks and telecommunications
Distinctions and speaking
Since 2019DevOps Institute AmbassadorFounding cohort of the global programme, listed for France.
2018TechBeacon DevOps 100Among the most followed DevOps figures worldwide.
National awardFirst prize for free softwareNational competition, first place.
CIO ApplicationsTop 10 DevOps consulting in EuropeEuropean ranking, for eralabs.
- 2019Global SKILup Day, DevOps Institute - speaker for Europe at the first global continuous-learning conference, broadcast without interruption across every time zone, on 10 December. Programme shared with Red Hat, CloudBees, ThoughtWorks, Sonatype, Pivotal and Delphix.
- 2019DevOps India Summit, Bangalore - a half-day Cloud Native workshop, and the session "Designing Cloud Native Applications: The Best Practices". Programme shared with Microsoft, Pivotal, Collabnet and Red Hat.
- 2019École 42, Paris - auditorium talk on the Linux kernel, Docker and the internals of containerisation.
- 2019Docker Meetup Tunisia - speaker.
- 2018DevOps India Summit, Bangalore - Cloud Native speaker, alongside John Willis, Sanjeev Sharma, Marc Hornbeek and GitLab.
- 2018Onepoint, Paris - guest of the first Architecture Meetup, at the Trocadéro head office, with the talk "Architecture At The Cloud Native Era".
- 2018Comet Tech Meetup, Paris - speaker, to an audience of technical freelancers.
- 2017DevOpsDays - opening speaker on DevOps teams and building technical communities.
Partnerships - FAUN.dev is a partner of Jenkins Community Day, ContainerDays, DevOpsDays and DevOps REX.
Writing and press
Contributions - articles published by InfoQ and TechTarget. Articles picked up by industry newsletters, including the CNCF's. Listed on the official Kubernetes blog, kubernetes.io.
Rankings - among the top 100 authors of the year on Medium, and among the top 100 authors of the year on HackerNoon.
Work covered by - TechBeacon, Libération, The Huffington Post, TechTarget, Entrepreneur, CIO Applications, InfoQ, Leanpub, DevOps Institute, LinuxRecruit and école 42.
Languages
French, English and Arabic: fluent. German: basic.