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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 & pronunciation — not the technical content.
At a glance
| Role | Backend Engineer |
|---|---|
| Location | Moscow |
| English challenge | vocabulary & pronunciation |
| Interview problem | Interview English |
| Target | Revolut |
| Preparation | Live mocks with English feedback on the same answers |
| Outcome | Gained clearer, more confident English for interviews |
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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 & pronunciation was what broke down.
Then vs Now
Before coaching
- Reached for words mid-answer and translated from a first 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 & pronunciation for Revolut. Each mock got notes on the same answer — where she paused, which words were vague, and where the structure broke.
- Replaced vague verbs with the words interviewers actually hear (latency, trade-off, shipped)
- Practised saying numbers, metrics, and product names until they were clear
- Built a short retrieval list for this role — not a general vocabulary course
- Repeated the same explanation until the terms came without translating
Useful references along the way: What to expect in English interviews, Pronouncing numbers and metrics.
What Other Engineers Can Learn
- Write the 20 terms you will actually say in this round. Practise them in full sentences.
- Say numbers and names out loud until they are clear without slowing down.
- Stop translating. If the precise word is missing, use a short definition and move on.
- Record one answer and listen only for searches and approximations.
What Changed
Gained clearer, more confident English for interviews. She could explain the work more clearly when questions got hard. 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 engineering 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 Croatian PM Prepped for Revolut's Behavioral Interviews.
Starting Point
She prepared for English-language interviews as a backend engineer. The stack was Java. Written English was stronger than speaking under the clock.
Practise the vocabulary you will actually say in the interview
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Create your Mockly account →Frequently Asked Questions
What English should a backend engineer learn for interviews?
The language of the round you will face — here, vocabulary & pronunciation. Learn full sentences for that format, not a general business-English course.
Do I need to sound like a native speaker?
No. Clarity and structure are the bar. A small accent is fine if they can follow your decisions and numbers.
How do you prepare for a backend engineer interview in English?
Practise the real format out loud, especially vocabulary & pronunciation. Get notes on pauses and vague wording after each mock — not only on the technical content.
How long does it take to feel ready as a backend engineer?
Many B2+ candidates need several weeks of focused, spoken practice. Weekly mocks beat a last-minute cram.
Other engineers practising interview English
Mockly was a huge help in preparing for my interviews. We worked on both technical and behavioral questions, and I received great advice on how to approach them and what to focus on. I feel significantly more confident as a result. They also helped me with my CV and cover letter — showing me how to structure them properly and highlight my strengths. I appreciate that they always ask how you’d like to structure your sessions and adjust to your goals. It keeps you on track and makes the whole process far more effective.
I’ve had the pleasure of practicing English with Mockly and I truly appreciate the progress I’ve made. I highly recommend their services to professionals in tech and beyond. I particularly enjoy the teaching style and the philosophy behind it: “If you enjoy the process, you’ll get it.” The personalized learning plans make every session practical and useful. Their hands-on knowledge and genuine interest in the world of technology will genuinely boost your English skills.
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