How a Bulgarian Software Engineer Built Interview-Ready English
Strong engineers still stall when they have to think and speak English at the same time. He was a software engineer in Bulgaria. The gap was vocabulary and clear pronunciation - not the technical content.
What this case shows
Written English was fine. Spoken answers stalled. See how one Software Engineer from Bulgaria practised interview English out loud.
At a glance
| Role | Software Engineer |
|---|---|
| Location | Bulgaria |
| English challenge | vocabulary & pronunciation |
| Interview problem | Interview English |
| Target | a Big Tech-style technical interview |
| Preparation | Live mocks with English feedback on the same answers |
| Outcome | Gained clearer, more confident English for interviews |
The Gap Between Knowing and Explaining
Strong engineers still stall when they have to think and speak English at the same time. He was a software engineer in Bulgaria. In the room, vocabulary and clear pronunciation were what broke down.
Then vs Now
Before coaching
- Pronunciation made metrics and names hard to follow
- Reached for words mid-answer and translated from another language
After coaching
- Said numbers and key terms clearly enough for the interviewer to follow
- Retrieved a small set of precise terms instead of long approximations
What We Practised
Practice matched the round he actually had to speak: vocabulary and clear pronunciation. Each mock interview included notes on the same answer - where he 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. He could explain key terms and pronunciation 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 work sound unfinished. A small, practised set of role terms is more useful than a general vocabulary list.
Preparing for a similar path? Read Amazon Interview Prep in English: A Software Engineer Case Study.
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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.
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.
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