About us
Practical, plain-English IT tutorials, roadmaps and interview guides for learners who want a job, not just a certificate.
Learning IT skills online is easy to start and hard to finish. Most learners jump between random videos, collect certificates and still feel unready for interviews. Radium4 is an IT training blog built to fix that, with clear learning paths, hands-on tutorials and honest career advice in plain English.
Every guide is written for one goal: helping you learn a skill well enough to use it at work. That means explaining why something works, not only which command to type, and showing you what to build next.
Linux, Git, CI/CD, Docker, Kubernetes and Terraform.
AWS, Azure and Google Cloud from first account to real architectures.
Statistics, machine learning and Python for data.
From first program to automation, web and data projects.
HTML, CSS, JavaScript, React, Node.js and databases.
Manual testing, automation, API testing and test design.
Excel, SQL, Power BI and analysis for business decisions.
Networking, threats, SOC skills and incident response.
Roadmaps, interview preparation and choosing the right course.
Radium4 is free to read. To keep it that way, the site shows advertising. Ads never decide what we recommend, and we clearly label any sponsored content. Read our disclaimer and privacy policy for details.
Radium4 — IT training blog
Practical, plain-English guides for DevOps, cloud, data, Python, testing and security learners.
