About IT Wonder Lab
Founder, engineer, investor. “Build with confidence. Decide clearly.”
IT Wonder Lab is an open-source collection of tutorials and best practices for cloud infrastructure automation: Infrastructure as Code, AWS, Terraform / OpenTofu, Kubernetes and Ansible. It is written by Javier Ruiz Jiménez.
Technologies covered #
The glossary has a page for every technology, linked to the tutorials that use it.
- Cloud: AWS, Azure and Google Cloud, with a page for each AWS service.
- Infrastructure as Code: Terraform, OpenTofu, Terragrunt, Pulumi, Packer, TFLint, Checkov and Infracost.
- Configuration and automation: Ansible, Vagrant and cloud-init.
- Containers and Kubernetes: Docker, Podman, containerd, Kubernetes, K3s, kind, Helm, Kustomize, Istio and cert-manager.
- CI/CD: Git, GitHub, GitHub Actions, Argo CD and LocalStack.
- Observability: Prometheus and Grafana.
- Security: Vault, Trivy and GnuPG.
- Data and storage: MySQL, MariaDB, PostgreSQL, Redis, NFS and rsync.
- Networking: NGINX, Traefik and Istio.
- Systems and tools: Ubuntu, VirtualBox, SSH, cron, jq and regular expressions.
About Javier #
Entrepreneur with 25 years founding and exiting IT companies, from on-premises software to SaaS platforms. Today Javier advises founders and boards based on lived business experience.
Career #
- Tecsisa (2001–2017): founded and led the software company, growing it from consulting to a SaaS platform that managed €2 billion a year of renewable energy. Acquired by a NASDAQ-listed multinational.
- IT Wonder Lab (2018–2022): open-source cloud infrastructure automation content platform that reached thousands of readers each month.
- Awarala (2022–2025): technical leadership for cloud and SaaS migrations, based in Malaysia. Acquired.
- A World Venture (present): advises boards, founders and CEOs; active investor and writer.
Areas of expertise #
- Cloud migration and strategy
- SaaS development
- High availability and resilience
- Software engineering
- Company building
Notable clients #
GSK, Enel Group, Endesa, Acciona, SAP, HP, CapGemini, ESADE, IE Instituto de Empresa, and 20+ other organizations across energy, finance, technology and education.
How this site is made #
Human written, updated with super intelligence. The tutorials and the glossary are written by Javier Ruiz Jiménez from hands-on experience building and running cloud infrastructure. AI assistance is used to keep them in good shape: reviewing grammar, finding outdated commands and versions, adding missing pages and linking related content. The code and the procedures are meant to be tested before you use them in production, and corrections are always welcome at javierruizjimenez.com.
Entries drafted with AI. Some entries, mainly glossary pages and tutorials added after the move from WordPress, were drafted with the help of AI and have not yet been reviewed by the author. These pages show the notice "This entry was drafted with the help of AI and is pending review by the author." at the top. The notice is removed once Javier has reviewed and corrected the entry, so treat the commands and details on flagged pages with extra care and test them before relying on them.
Contact #
To work with Javier, read his writing or get in touch, visit javierruizjimenez.com.