By Mockly English · Last updated:
You know how to do the job. The difficult part is explaining it in English when an interviewer is watching. He was a product manager in Netherlands. The gap was vocabulary and clear pronunciation — not the technical content.
At a glance
| Role | Product Manager |
|---|---|
| Location | Netherlands |
| English challenge | vocabulary & pronunciation |
| Interview problem | Interview English |
| Target | Nebius |
| Preparation | Live mocks with English feedback on the same answers |
| Outcome | Gained clearer, more confident English for interviews |
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You know how to do the job. The difficult part is explaining it in English when an interviewer is watching. He was a product manager in Netherlands. The team often spoke Russian, so live English was not daily practice. The next interviews were at Nebius, in English. In the room, vocabulary and clear pronunciation were what broke down.
Practice this STAR story
Try a locked preview of a behavioral / STAR drill — with English prompts for situation, action, and result.
Sign up to unlock this exercise →Practice matched the round he actually had to speak: vocabulary and clear pronunciation for Nebius. Each mock interview included notes on the same answer — where he paused, which words were vague, and where the structure broke.
Useful references along the way: STAR interview framework, Pronouncing numbers and metrics.
The shift came in a timed mock focused on vocabulary and pronunciation. He finished the answer without long pauses. A simple spoken order made follow-up questions easier. That session is what made the next live round feel familiar.
Proof of work — one mock session
| Problem | A live mock on vocabulary & pronunciation |
|---|---|
| Old approach | Translated each sentence; structure collapsed under follow-ups |
| New framework | One spoken order, practised until retrieval was automatic |
| Result | Answers finished without abandoning the point |
How answers sounded before
“It is like… wait… how to say… we did something with the system…”
How answers sounded after
“Here is the decision, here is why, here is the number. Then I can take a follow-up.”
Gained clearer, more confident English for interviews. He could explain key terms and pronunciation more clearly when questions got hard — including practice aimed at Nebius. That readiness was the goal — not a promised job offer.
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 PM From Russia Prepped for English Interviews.
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Thanks to Mockly’s preparation and mock interviews, I passed multiple interviews, received several offers, and landed a new job. The sessions increased my confidence as we worked through initial screening and technical interview questions. Mockly didn’t just improve my English — they gave me great advice on how to answer questions and approach interviews strategically. I truly recommend them to anyone seeking a role at an international company.

Mockly has been the best investment I’ve made in the past year. The mentors don’t just have a deep knowledge of the language — they bring extensive experience in the IT industry. They understand the tech job market and are well-versed in modern engineering practices and the culture of top companies. Sessions aren’t just about improving your English; they’re an opportunity to sharpen your soft skills, gain valuable insights beyond engineering, and become a stronger communicator overall. Highly recommended.
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 product manager preparing for Nebius practised.
Yes. Interviewers need to follow your reasoning. A clear structure and the right words matter more than sounding native. This case study about this product manager preparing for Nebius is about that gap — not about erasing an accent.
That was the pattern here: written English was stronger than live answers. Practise vocabulary and clear pronunciation out loud, with follow-up questions, until the words come without long pauses.
If the real loop is in English, yes. Silent LeetCode or notes in your first language do not train the round the interviewer will hear.
A Russian product manager knew the work. Live English for behavioral stories was where interviews stalled. Here is the practice that changed the delivery.
A Serbian product manager was targeting Google. Behavioral stories in English were the gap. Here is what she practised.
Case studies are illustrative, based on patterns from real coaching sessions.