What you'll learn
Quick Answer
Most professional communication in software is written and asynchronous. Short sentences, specific detail and clear structure matter more than vocabulary or fluency. Interviewers assess whether your explanation is followable, not your grammar.
The writing matters more than the speaking
Students worry about accent and fluency. In practice, most communication in a software job is written: issue descriptions, pull request explanations, code comments, documentation, chat messages, design documents.
That is even more true with distributed teams, where a colleague may read your message eight hours after you write it and cannot ask a quick follow-up — see remote jobs for freshers.
Written communication also has a property speaking does not: you can edit it. Nobody sees the first draft. You can write badly and then fix it, which means clarity is a skill you can apply deliberately rather than a fluency you either have or do not.
This should be reassuring. The thing that matters most is the thing you have the most control over.
What clear writing actually means here
Not elaborate vocabulary. Technical writing values plainness.
Short sentences. One idea each. Long sentences with several clauses are harder to follow and much harder to write correctly in a second language, so they cost you twice.
Specific over general. "The API is slow" is not information. "The /students endpoint takes 4 seconds when the class has over 500 records" is actionable.
Lead with the point. English technical writing puts the conclusion first, then the reasoning. Building up to the point is normal in many writing traditions and reads as evasive here.
Weak: "I was looking at the login flow and noticed some things, and after investigating the middleware I think there may be an issue with how sessions are handled..."
Better: "Sessions are not being cleared on logout. The middleware creates a new one but the old ID stays valid."
Use structure. Bullet points and headings are normal in professional writing, not informal. A wall of text gets skimmed.
Three messages you will write constantly
The status update. What you did, what is next, what is blocking you.
"Finished the search endpoint and it is in review. Next I am adding pagination. Blocked on database access for staging — raised with infra yesterday."
The question. What you are trying to do, what you tried, what happened, what you need.
"I am trying to run migrations against staging. I ran make migrate and got a connection timeout. I checked the credentials in the env file and they match the docs. Is there a VPN requirement I have missed?"
The disagreement. Acknowledge, state your reasoning, stay open.
"I see the argument for caching here. My concern is that the data changes on every booking, so we would be invalidating constantly. Would a shorter TTL work, or am I missing something?"
Those three cover most of what you send. Having a shape in mind removes most of the effort.
What interviewers are actually assessing
Not grammar. Not accent. They are assessing whether they can follow your reasoning, because that predicts whether working with you will be easy.
Practical things that help:
- Slow down. Nervousness makes people speed up, which makes them harder to understand. Deliberate pace helps more than vocabulary.
- Signpost. "There are two parts to this. First the database change, then the API." Now the listener knows the shape.
- Say when you do not know. "I have not used that — my understanding is X, is that right?" is a good answer. Talking around a gap is transparent.
- Ask for clarification. Asking someone to repeat a question is completely normal and better than answering the wrong one.
- Prepare your project explanation. The one thing you can rehearse — see explaining your project.
Improving it deliberately
The most effective practice is producing English about technical topics, since that is the specific skill.
- Write your commit messages and pull requests carefully. Daily practice you are doing anyway, with a real audience.
- Answer questions in communities. Explaining a technical point in writing to a stranger is exactly the target skill.
- Write about what you build. Even short posts. Writing forces you to organise thinking, which is why it improves your technical understanding too.
- Read good technical writing — well-maintained documentation, engineering blogs — and notice the structure rather than the vocabulary.
- Use tools, but read the suggestions. A grammar checker is useful if you learn from corrections rather than accepting them blindly.
One thing to be clear about: fluency is not intelligence, and an accent is not a defect. A large proportion of the software industry works in English as a second or third language. What is expected is that you can be understood, not that you sound like anyone in particular.