エンジニアのための英語 / 第4章: チャットコミュニケーション
💬 Chapter 4

チャットコミュニケーション

Slack・Discord・Teamsでの依頼・進捗報告・スケジュール調整・感謝・フォローアップ。非同期コミュニケーション特有のフレーズとマナー。

💬 5 セクション
⚡ 60+ フレーズ
🌏 リモートワーク特有の表現

チャットでの同僚への依頼は "Could you...?""Can you...?" が自然。日本語感覚で "Please" を多用すると命令っぽく聞こえることがある。

丁寧さのグラデーション
レベル表現使うシーン
命令的Fix this bug.親しい同僚・自分がリード
普通Can you fix this?日常的な依頼
標準Could you fix this bug?標準的なチャット依頼 ◀ 推奨
丁寧Please fix this bug.少しフォーマル
非常に丁寧Would you mind fixing this bug?負担をかけると感じる時
間接的I was wondering if you could look at this.フォーマルなメール向き
緊急度の表現
Low
"Whenever you get a chance..."
"When you have a moment..."
"No rush on this."
Normal
"Could you take a look at this today?"
"I was hoping to get this done by tomorrow."
Urgent
"This is fairly urgent — can you take a look ASAP?"
"Urgent: we need a fix before the demo at 3pm."
"Time-sensitive: deploy window closes in 2 hours."
Blocker
"This is blocking me — I can't proceed until this is resolved."
"I'm completely blocked on X. Need help urgently."
"This is a blocker for the entire team."
Would you mind...? の完全ガイド

"Would you mind?" は文法的に「嫌ですか?」と聞いているため、返答が逆になる。了承 = "Not at all." / "Happy to!" ("Yes"は「はい、嫌です」になるので断りの返事にNOT使う)

了承(嫌じゃないよ = やりますよ)
Not at all. / Not at all, happy to. Of course! Sending feedback now. Sure, no problem. Happy to!
断る(理由 + 代替案)
I'm afraid I can't right now — I'm in the middle of a deploy. I'm a bit tied up today, but I can take a look tomorrow. I'm swamped this week — could you ask @alice instead?
依頼に文脈を添える(Bad vs Good)
❌ 文脈なし
Could you review my PR?
✅ 文脈付き(推奨)
Hey @alice — I've opened a PR for the login fix (#123).
It's fairly small (~50 lines). Could you review when you get a chance?
We're hoping to ship this by EOD.

スタンドアップの基本フォーマットは「昨日・今日・ブロッカー」の3点。簡潔さが命。詳細は別途スレッドや1on1で話す。

デイリースタンドアップ テンプレート
Yesterday: - Finished the user authentication PR and addressed review comments - Merged #234 (login redirect fix) Today: - Working on the email notification feature (#456) - Planning to open a PR by EOD Blockers: - None
Yesterday: - Started on the payment integration Today: - Continuing with payment integration — need to set up Stripe test keys Blockers: - Blocked by missing Stripe API keys. @alice, could you add them to 1Password?
進捗状況の表現レパートリー
状況表現
順調On track. / Making good progress. / Ahead of schedule.
遅れているSlightly behind schedule. / This is taking longer than expected.
完了間近Almost there. / Final stretch. / Just need to finish the tests.
完了Done! / Wrapped up. / This is complete.
PRを出したPR is up: #123 — would appreciate a review!
デプロイ完了Deployed to staging. / Shipped to production at 2:30pm JST.
システム障害報告 — 第一報 → 更新 → 復旧
[INCIDENT] The payment service is returning 503 errors. Investigating now. Will update in 15 min. Update 14:45: Root cause identified — database connection pool exhausted. Working on a fix now. ETA: ~30 minutes. ✅ Resolved at 15:05 JST. Service is back to normal. Root cause: misconfigured rate limit in the new deployment. Fix deployed. Monitoring for the next 30 minutes. Postmortem to follow.
時間の提案フレーズ
How about Tuesday at 3pm?
火曜の3時はどうですか?
Would Thursday at 10am work for you?
木曜10時はあなたの都合に合いますか?
Are you free on Wednesday afternoon?
水曜午後は空いていますか?
Do you have 15 minutes sometime this week?
今週15分ほど時間はありますか?

国際チームではタイムゾーンの明示が必須マナー
"Let's meet at 3pm Monday."
"Let's meet at 3pm Monday JST (6am Monday UTC)."

変更の依頼
Would it be possible to move our meeting to Friday instead?
金曜日に変更することは可能でしょうか?
Something came up — could we reschedule our 3pm call?
急用が入りました。3時の通話を変更できますか?
I'm free at 2pm or 4pm instead. Does either work?
代わりに2時か4時なら空いています。どちらかは合いますか?
参加・不参加の表現
✅ 参加
I'll be there. I'm in! Count me in. Looking forward to it. Added to my calendar.
❌ 不参加・配慮
I can't make it, unfortunately. I have a conflict at that time. I'll catch up on the recording. Could someone fill me in after?

英語圏では丁寧な催促は普通のコミュニケーション。ポイントは「責める口調を避け、サポートを申し出る姿勢」を見せること。

フォローアップ・催促
❌ NG(責める・攻撃的)
Did you see my message?
Why haven't you responded?
I sent this 3 days ago.
✅ Good(丁寧・協力的)
Just checking in on this — any updates?
Bumping this up in case it got buried.
Checking in — happy to help if there's
anything blocking you.
意見表明
スタンス表現
強い同意Absolutely. / 100% agree. / Couldn't agree more.
同意Sounds good! / LGTM. / I'm on board. / +1 to this.
中立・条件付きI see your point, but I have one concern. / My only concern is...
懸念I have some concerns. / I'm a bit hesitant about this.
感謝の表現(カジュアル〜フォーマル)
レベル表現シーン
カジュアルThanks! / Appreciate it! / You rock! / Cheers!Slackでの日常的な感謝
具体的Really appreciate you jumping on this so quickly.スピードへの感謝
強い感謝You saved me hours of debugging — thank you!助けてもらった時
フォーマルThank you for your time and detailed feedback.メール・公式な場
感謝 + 次のアクションThanks! I'll implement this and update the PR.レビューコメントへの返信
短い相槌・反応集
Got it.
了解・理解した
On it.
取り組みます・対応中
Noted.
承知しました・記録した
Makes sense.
なるほど・理解できる
Go for it.
進めてください
lmk if you need help.
助けが必要なら知らせて(let me know)
ビデオ会議での定番フレーズ
シーン表現
会議開始確認Can everyone hear me? / Is my audio coming through?
音声トラブルYou're on mute. / I think you're muted — can you unmute?
接続問題I'm having connection issues — give me a second.
聞き取れないSorry, you were breaking up — could you say that again?
画面共有Let me share my screen. / Can everyone see my screen?
質問タイミングI have a question when you get to a good stopping point.
非同期コミュニケーションのマナー
I'll respond async.
非同期で返します(リアルタイム不要)
No need to reply right away — whenever you get a chance.
急がなくていいです
I'm heads-down until 3pm.
3時まで集中作業中
Signing off. Have a good evening, everyone!
退席します。お疲れ様でした!
EOD here — passing the baton to @alice in the US office.
本日業務終了。米国のaliceに引き継ぎます。
On-call / インシデント重大度
レベル定義対応
P1 / Sev1Critical — サービス完全停止即時対応("All hands on deck")
P2 / Sev2High — 主要機能の停止できるだけ早く対応
P3 / Sev3Medium — 一部機能の障害通常業務内で対応
P4 / Sev4Low — 軽微な問題通常のチケットで対応
Postmortem テンプレート
## Timeline - 14:30 JST: Monitoring alert triggered - 14:35 JST: On-call engineer paged - 14:45 JST: Root cause identified - 15:00 JST: Fix deployed - 15:05 JST: Service fully recovered ## Root Cause A misconfigured health check caused the load balancer to route traffic to unhealthy instances after the deployment. ## What Went Well - Alert triggered quickly (within 5 minutes) - Team coordinated well in the incident channel ## Action Items | Action | Owner | Due | |--------|-------|-----| | Add canary deployment to CI/CD | @alice | Apr 1 | | Update health check test coverage | @bob | Mar 25 |