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By Mockly English · Last updated:

How a Russian Backend Engineer Built English Fluency for Revolut

Interviewers are not grading your accent. They need to follow your reasoning in English. She was a backend engineer in Moscow. The gap was vocabulary and clear pronunciation — not the technical content.

At a glance

RoleBackend Engineer
LocationMoscow
English challengevocabulary & pronunciation
Interview problemInterview English
TargetRevolut
PreparationLive mocks with English feedback on the same answers
OutcomeGained clearer, more confident English for interviews
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Courses · Coaching · Mock Interviews

The Gap Between Knowing and Explaining

Interviewers are not grading your accent. They need to follow your reasoning in English. She was a backend engineer in Moscow. Day-to-day work used Java. The next interviews were at Revolut, in English. In the room, vocabulary and clear pronunciation were what broke down.

Then vs Now

Before coaching

  • Reached for words mid-answer and translated from another language

After coaching

  • Retrieved a small set of precise terms instead of long approximations

What We Practised

Practice matched the round she actually had to speak: vocabulary and clear pronunciation for Revolut. Each mock interview included notes on the same answer — where she paused, which words were vague, and where the structure broke.

  • Replaced vague verbs with the precise words interviewers expect, such as latency, trade-off, and shipped.
  • Practised saying numbers, metrics, and product names until they were easy to hear.
  • Built a short list of words for this role — not a general vocabulary course.
  • Repeated the same explanation until the key terms came without translating from another language.

Useful references along the way: What to expect in English interviews, Pronouncing numbers and metrics.

What Other Engineers Can Learn

  • Write the twenty terms you will actually say in this interview round. Practise them in full sentences.
  • Say numbers and names out loud until they are clear without slowing down.
  • Stop translating mid-sentence. If the precise word is missing, give a short definition and continue.
  • Record one answer and listen only for word searches and long approximations.

What Changed

Gained clearer, more confident English for interviews. She could explain key terms and pronunciation more clearly when questions got hard — including practice aimed at Revolut. That readiness was the goal — not a promised job offer.

Why Vocabulary Breaks Interviews in English

You can know the work and still lose the round while searching for a word. Interviewers follow a sequence. Long pauses and vague verbs make strong work sound unfinished. A small, practised set of role terms is more useful than a general vocabulary list.

Preparing for a similar path? Read How a European Backend Engineer Interviewed at Revolut in English.

Starting Point

She prepared for English-language interviews as a backend engineer. The stack was Java. Written English was stronger than speaking under time pressure.

Practise the vocabulary you will actually say in the interview

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Frequently Asked Questions

What English should a backend engineer learn for interviews?

The English of the round you will face — here, vocabulary and clear pronunciation. Learn full sentences for that format, not a general business-English course. That is what this backend engineer preparing for Revolut practised.

Do I need to sound like a native speaker?

No. Clarity and structure are the bar. A small accent is fine if the interviewer can follow your decisions and numbers. That was the standard for this backend engineer preparing for Revolut.

How do you prepare for a backend engineer interview in English?

Practise the real format out loud, especially vocabulary and clear pronunciation. After each mock, get notes on pauses and vague wording — not only on the technical content. That is the approach used with this backend engineer preparing for Revolut.

How long does it take to feel ready as a backend engineer?

Many candidates at B2 level and above need several weeks of focused speaking practice. Weekly mock interviews beat a last-minute cram. For this backend engineer preparing for Revolut, the useful practice was the real interview format out loud.