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Software Engineers & Tech Leads (CEFR B1 → B2+)
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Tech Professional English

Master daily Scrum standups, PR code reviews, system architecture deep-dives, and technical conflict negotiations with AI tutor Dia. Practice judgment-free speaking in authentic workplace roleplay missions with instant pronunciation and grammar coaching powered by Dia AI.

4 Modules
14+ Guided Scenarios
Dia AI Tutor
< 250ms Latency
CEFR Aligned
A2 – C1 Fluency Scales
Free Trial
100 AI Turns Included
Start Free Speaking Practice (100 Turns)View Sample Dialogue
Live Dialogue Evaluation Architecture

How You Practice with AI Tutor Dia

No robotic quizzes. You speak aloud into your browser microphone; Dia evaluates your phonetic clarity, grammar tenses, and pauses in real-time.

Alex • Scrum Master
Latency: 210ms
Scenario Prompt
“Good morning team. What did you work on yesterday and what's your plan for today?”
Your Spoken Response (Live Audio)Pronunciation: 96%

“Yesterday, I finished the API integration. Today, I will write unit tests and fix the UI alignment blocker.”

Word Accuracy:Yesterday (98%)API (96%)integration (95%)tests (97%)blocker (95%)
Dia AI Corrective Feedback:

Excellent active past tense ('finished') and future projection ('will write'). Clear, unhesitant delivery on technical blockers.

Structured Curriculum & Scenarios

Every module pairs authentic real-world workplace scenarios with targeted grammar patterns, pronunciation coaching, and branching roleplays.

1

Module 1: Daily Standups & Agile Cadence

3 Guided Scenarios • 6 Practice Turns

Articulate yesterday's accomplishments, today's sprint deliverables, and engineering blockers clearly without hesitation.

Reporting completed Jira tickets & API integrations
Clarifying technical blockers (CSS grid, DB deadlocks, memory leaks)
Estimating sprint story point timelines diplomatically
Answering surprise follow-ups from Scrum Masters & Product Managers
2

Module 2: Pull Request Reviews & Constructive Pushback

3 Guided Scenarios • 6 Practice Turns

Express architectural feedback constructively, suggest code refactorings, and defend engineering decisions with diplomatic professionalism.

Suggesting design pattern alternatives (Strategy vs Factory)
Rejecting PR changes politely citing performance & security constraints
Asking clarifying questions on complex asynchronous logic
Phonetic coaching on common dev terms (SQL, async, daemon, tuple)
3

Module 3: System Architecture Walkthroughs & Tech Demos

4 Guided Scenarios • 8 Practice Turns

Confidently present microservice architectures, database schema tradeoffs, and infrastructure plans to cross-functional stakeholders.

Explaining latency vs throughput tradeoffs (Redis vs Kafka)
Answering executive inquiries on cloud infrastructure costs
Facilitating post-mortem root cause analysis (RCA) meetings
Handling high-pressure live production incident debriefs
4

Module 4: Tech Job Interviews & STAR Methodology

4 Guided Scenarios • 8 Practice Turns

Master technical behavioral interviews, salary negotiations, and cultural fit discussions with global engineering hiring managers.

Structuring past projects using Situation-Task-Action-Result (STAR)
Explaining past engineering failures and lessons learned
Asking intelligent architectural questions to interviewers
Polite compensation and equity negotiation frameworks

Target Competencies

  • Speaking PronunciationEvaluated via real-time phonetics and sentence logic.
  • Grammar TensesEvaluated via real-time phonetics and sentence logic.
  • Vocab UsageEvaluated via real-time phonetics and sentence logic.
Enterprise Privacy

Zero Audio Retention Policy

You can practice sensitive sprint blockers, enterprise pitches, or client scenarios with complete confidentiality. All voice recognition runs directly in your browser. No voice recordings are saved or uploaded.

100% Private Local Session
Curriculum Specification

Tech Professional English Technical Specifications

Track DimensionSpecification & StandardOutcome Verification
Target RoleSoftware Engineers & Tech Leads (CEFR B1 → B2+)Workplace roleplay fluency
CEFR StandardCEFR B1 (Threshold) to B2/C1 (Proficient)CEFR alignment scorecard
AI Voice EngineWebSpeech API + Dia LLM Voice ModelSub-250ms voice latency
Evaluation MetricsPhonetics accuracy, tense correctness, WPM cadence0–100% word-level score
Privacy ProtocolZero audio stored on server or cloud databases100% client-side privacy
Included Free Quota100 Free Conversational AI Turns on SignupNo credit card required
Frequently Asked Questions

Questions About Tech Professional English

Everything you need to know about practicing spoken English with Dia AI.

Dia runs on real-time browser WebSpeech recognition and evaluates your speech in under 250 milliseconds. It assesses your phonetics, grammar tenses (past/present/future deliverables), vocabulary appropriateness, and speech rate, providing instant corrective feedback before you speak in real engineering meetings.

Ready to Speak Confidently in English?

Overcome fear of judgment. Practice Scrum standups, executive pitches, and interviews privately with Dia AI. 100 free turns included.

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Spoken EnglishTech Professional English
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