Tech Lead English: Giving Feedback That Lands
Giving feedback is one of the most important — and most uncomfortable — things a tech lead does. For Vietnamese developers moving into leadership in international teams, the challenge is doubled: you need to be direct enough to be useful while diplomatic enough to be heard.
This lesson gives you the exact phrases, vocabulary, and practice dialogues you need to give feedback confidently in English.
Why Feedback Often Fails
Bad feedback sounds like this:
- “This code is not good.” — Too vague, no action.
- “You always miss deadlines.” — “Always” triggers defensiveness.
- “Maybe you could, like, possibly think about restructuring this?” — Too soft, no impact.
Good feedback is specific, behavior-focused, and forward-looking. And it sounds confident, not apologetic.
🗣️ Key Phrases to Say Out Loud
Practice these until they feel natural. Say each one 3 times.
| Phrase | IPA Pronunciation |
|---|---|
| ”I noticed that…” | /aɪ ˈnoʊtɪst ðæt/ |
| “The impact of this is…” | /ðə ˈɪmpækt əv ðɪs ɪz/ |
| ”What I’d like to see instead is…” | /wɒt aɪd laɪk tə siː ɪnˈsted ɪz/ |
| ”Can you walk me through your thinking here?” | /kæn juː wɔːk miː θruː jɔːr ˈθɪŋkɪŋ hɪər/ |
| “This is blocking the team because…” | /ðɪs ɪz ˈblɒkɪŋ ðə tiːm bɪˈkɔːz/ |
| “Going forward, let’s agree on…” | /ˈɡoʊɪŋ ˈfɔːrwərd lets əˈɡriː ɒn/ |
| ”I appreciate you taking this on — here’s what I’d improve…” | /aɪ əˈpriːʃieɪt juː ˈteɪkɪŋ ðɪs ɒn/ |
Pronunciation tip: In “I’d like” and “What I’d”, the “I’d” is contracted and fast — it sounds like “Id”, not “I would”. Practice collapsing it.
📚 Vocabulary
| Word / Phrase | Meaning (Vietnamese) | Pronunciation | Example |
|---|---|---|---|
| constructive | mang tính xây dựng | /kənˈstrʌktɪv/ | “That’s constructive feedback — specific and actionable.” |
| actionable | có thể thực hiện được | /ˈækʃənəbəl/ | “Give me something actionable, not just complaints.” |
| defensiveness | tính phòng thủ, dễ bị tổn thương | /dɪˈfensɪvnəs/ | “Avoid ‘you always’ — it triggers defensiveness.” |
| to own | nhận trách nhiệm về | /tuː oʊn/ | “He owns the backend services — go to him for that.” |
| to flag | báo hiệu, đánh dấu vấn đề | /tuː flæɡ/ | “Flag any blockers in the standup.” |
| follow-through | thực hiện đến cùng | /ˈfɒloʊ θruː/ | “Great idea, but she has no follow-through.” |
| pull request | PR (yêu cầu merge code) | /pʊl rɪˈkwest/ | “Please address my comments before merging this pull request.” |
🎯 Practice Now
Scenario 1: Code Review Feedback
Your team member submitted a PR with no error handling. Here’s how to give feedback that’s direct but not harsh:
Weak version (avoid this):
“Um, so there’s no error handling here, which is kind of a problem.”
Strong version (use this):
“I noticed this function doesn’t handle the case where the API returns a 500 error. The impact is that users will see a blank screen with no explanation. Can you add a try/catch block and return a user-friendly error message? Let me know if you’d like to pair on it.”
Key structure: OBSERVATION → IMPACT → REQUEST → OFFER TO HELP
Scenario 2: Missed Deadline
Your developer missed a sprint commitment without communicating early.
You say:
“Hey, I want to check in about the authentication service — it was scoped for this sprint but it wasn’t completed. What happened, and what blocked you? Going forward, I’d like us to flag blockers by Wednesday if we think something won’t make it. That way the team can re-plan early instead of being surprised at the sprint review.”
Practice: Say this out loud, imagining you’re in a 1-on-1. Focus on your tone — firm but calm, not accusatory.
Scenario 3: Positive Feedback (Done Right)
Positive feedback is also a skill. Vague praise doesn’t help anyone grow.
Weak: “Good job on the PR!”
Strong: “I appreciated how you proactively refactored the auth middleware before the deadline. That showed good ownership and saved us debug time later. Keep doing that — it’s the kind of initiative the team needs.”
Why it works: You named the specific behavior, explained the impact, and connected it to a team value.
Dialogue: Tech Lead to Senior Developer
Practice reading this dialogue out loud with a partner (or record yourself reading both parts):
Tech Lead: “Can I share some feedback on the sprint planning session yesterday?”
Dev: “Sure, go ahead.”
Tech Lead: “I noticed the estimations were quite optimistic — we committed to 34 story points but our velocity is usually 22. The impact is that we’re setting expectations the team can’t meet. What I’d like to see going forward is us using our historical velocity as a baseline. Does that make sense?”
Dev: “Yeah, fair point. I was being too ambitious.”
Tech Lead: “I get it — ambition is good. Let’s channel it into stretch goals rather than core commitments. Deal?”
Common Mistakes Vietnamese Tech Leads Make
- Being too indirect — saying “maybe” and “possibly” when you mean “please do this”
- Apologizing before feedback — “Sorry to bring this up, but…” weakens your message
- Feedback in public — always give critical feedback privately first
- No follow-up — feedback without checking back loses its impact
The rule: Praise publicly. Correct privately. Always follow up.
Evening Challenge
Before your next code review or 1-on-1, write out your feedback using this structure:
I noticed [specific behavior].
The impact is [concrete consequence].
What I'd like to see is [clear request].Say it out loud once before you deliver it — even 30 seconds of rehearsal makes a difference.
Practice time: ~15 minutes | Level: Intermediate–Advanced | Session: Tech Lead English