QA Engineer - Voice AI (Vietnamese Language)

January 22, 2026
Open
Open
Location
Vietnam
Occupation
Part-time
Experience level
Mid-level
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Job Summary

Vị trí này tại Neurons Lab, làm việc từ xa tại Việt Nam với hợp đồng bán thời gian, tập trung kiểm thử chất lượng hệ thống Voice AI PoC trong lĩnh vực telemarketing bằng tiếng Việt. Ứng viên chịu trách nhiệm thiết lập chiến lược kiểm thử, thiết kế kịch bản, đánh giá các chỉ số QA và đảm bảo chất lượng trước demo. Dự án kéo dài 3-5 tuần với KPI cụ thể và lộ trình rõ ràng.

Yêu cầu có kinh nghiệm QA trong AI hội thoại, IVR, kỹ năng kiểm thử theo kịch bản và exploratory, hiểu biết về API, Backend, ASR, TTS, WER, CER và logic intent bằng LLM. Ưu tiên hiểu về luồng telemarketing và compliance cơ bản.

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About the project

This project delivers a Vietnamese Voice AI PoC that automates high-volume outbound telemarketing calls using real-time voice interaction and LLM-based intent handling. The solution improves call consistency and conversion quality, benchmarks multiple ASR/TTS providers in Vietnamese, and enables safe human handoff for complex cases. The PoC provides ILA with clear performance metrics and a scalable foundation for expanding voice automation without linear cost growth.

Duration: 3-5 weeks

KPI

KR1: ≥95% test coverage for top telemarketing scenarios and top 20 intents

KR2: 0 P0 / P1 defects open at PoC demo and readout

KR3: Human handoff triggers correctly in ≥99% of low-confidence or edge cases

KR4: Consent / opt-out / fallback flows pass 100% of compliance test cases

KR5: Escalation and hang-up logic validated across all supported call paths

Areas of Responsibility

  • Define and maintain QA strategy for Voice AI PoC → MVP

  • Design test scenarios for telemarketing flows, intents, and edge cases

  • Validate ASR/TTS quality (WER/CER, accent robustness, noise conditions)

  • Test LLM intent accuracy, fallback behavior, and confidence thresholds

  • Verify human handoff, consent, DNC, and compliance-related logic

  • Analyze QA metrics and provide go/no-go recommendations

  • Ensure demo and readout readiness (no surprises on demo day)

Skills

  • QA for voice, conversational AI, or IVR systems (Vietnamese language)

  • Scenario-based and exploratory testing

  • Experience with API, backend, and integration testing

  • Log analysis, trace inspection, and defect root-cause analysis

  • Ability to translate business flows into testable acceptance criteria

Knowledge

  • Voice AI fundamentals: ASR, TTS, WER, CER, latency metrics

  • LLM-based intent detection and confidence thresholds

  • Call flow logic: barge-in, interruptions, silence handling, hang-ups

  • Telemarketing and contact-center workflows (nice to have)

  • QA metrics and release readiness criteria

  • Basic understanding of compliance concepts (consent, opt-out, escalation)

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Neurons Lab
Neurons Lab is a leading AI consultancy delivering transformation services to guide organizations into a new era of AI
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Company size
11-50
Founded in
2019
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