English for IT professionals: terminology, cases, mock interviews

From general “why it's important” to specific tools and tips on “what to do and how to do it”

IT is not just codes, servers, and a coffee machine that lives better than most people. It's a whole world where language is the key to understanding, career growth, and the feeling that you're “on the same wavelength” as all those who create the future. And if you don't speak English about code, architecture, or tusks yet, it's time to start.

This article is for those who are already in the tech world or are just preparing to enter it, but want to not just “know English” but think like a real IT professional.

When you write code, English is already all around you. It's in functions, documentation, variables, errors, and commits. But knowing the words doesn't mean you can live with them.

Spoken English in IT is the ability to think in terms rather than translate: to quickly describe a problem, explain a solution, and defend your idea to a team or client.

The good news is that this is not a talent. It is a skill that can be trained. If you have any doubts about your level, you can take an English test to find out your current level. And read on.

Learning technical English is like building a system: you need a structure.

Development and algorithms: algorithm, recursion, edge case, scalability.

Frontend / Backend: framework, endpoint, API, middleware.

DevOps / Cloud: CI/CD, container, Kubernetes, load balancing.

Data & AI: dataset, overfitting, model validation.

Security: authentication, encryption, vulnerability.

Product and management: backlog, sprint, MVP, stakeholder.

Do not memorize everything. It is better to choose one topic that is close to you now and “speak” it - write code, explain, discuss tasks, even think in it. Words