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By Mockly English · Last updated:
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 & pronunciation — not the technical content.
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 |
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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. The team often spoke Russian, so live English was not daily practice. In the room, vocabulary & pronunciation was what broke down.
Then vs Now
Before coaching
- Pronunciation made metrics and names hard to follow
- Reached for words mid-answer and translated from a first language
After coaching
- Said numbers and key terms clearly enough to keep the thread
- Retrieved a small set of precise terms instead of long approximations
What We Practised
Practice matched the round he actually had to speak: vocabulary & pronunciation. Each mock got notes on the same answer — where he 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. He 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 Software Engineer From Poland Prepped for English Interviews.
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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.
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 software 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.
Should I practise technical interviews in English?
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.
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 software 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.
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