# AI Engineer (Voice)

We're looking for an AI Engineer to own HiKana's real-time voice conversation stack-speech recognition, TTS, LLM dialogue, and latency. HiKana is an iOS and Android app where English speakers practice Japanese by talking with Kana, an original AI anime character. You'll work closely with our technical co-founder in a small Tokyo team, shipping improvements that learners feel immediately in every conversation. Responsibilities Design and improve real-time voice AI: ASR, TTS, turn-taking, barge-in, and end-to-end latency Integrate and tune LLMs for spoken Japanese learning dialogue Own reliability and quality metrics for live voice sessions on iOS and Android Ship iteratively in a small, high-ownership team Requirements Strong English (required). Japanese is not required for day-to-day work Genuine motivation to learn Japanese (required)-our product and users are built around that journey Hands-on experience with real-time voice or conversational AI Comfortable shipping production systems, not only prototypes Based in or willing to work from Tokyo (Shibuya) Nice to have Japanese ASR/TTS or multilingual voice models Mobile or realtime audio (WebRTC) experience Interest in language lea

- **Id**: 3950915
- **Url**: <https://alion.io/job/90ds-ai-engineer-voice>
- **Role**: AI/ML
- **Role family**: AI/ML
- **Employment type**: full_time
- **Work mode**: hybrid
- **Hiring geo confidence**: structured
- **Locations**: Tokyo, Japan
- **Countries**: JP
- **Hiring countries total**: 0
- **Visa sponsorship**: no
- **Relocation package**: no
- **Has equity**: no
- **Status**: live
- **First seen at**: 2026-11-09T02:03:09Z
- **Last verified at**: 2026-11-09T02:03:09Z
- **Board verified**: no
- **Days open**: 0
- **Description format**: text
- **Description chars**: 1231
- **Description truncated**: no
- **Relocation offered**: no

## Company

- **Id**: 4527465
- **Name**: 90Ds
- **Domain**: 90ds.net
- **Url**: <https://alion.io/company/90ds>
- **Is staffing agency**: no
- **Employer type**: direct
- **Is intermediary**: no

## Salary

- **Min**: 6000000
- **Max**: 9000000
- **Currency**: JPY
- **Period**: year
- **Usd annual**: 57222

## Technologies

- **LLM** — Optional: no

## Trust

- **Level**: not_scored
- **Days open**: 0

## Requirements

- **Manages managers**: no
- **Security clearance**: no

### Languages

- Language: Japanese; Level: All levels; Optional: no
- Language: English; Level: All levels; Optional: no

## Lifecycle

- Event: open; At: 2026-11-09T03:30:25Z

## Liveness

- **Score**: 86
- **Band**: hot
- **Label**: Hiring now
- **P open**: 1
- **P active**: 0.86
- **P room**: 1
- **Age days**: 0
- **Expected fill days**: 25
- **Reasons**: seen:0, win:early
- **Computed at**: 2026-11-09T04:24:09Z

## Pay

- **Stated usd annual**: 57222
- **Is top pay**: no

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Source: Alion (alion.io), 2026-11-09. Texts written by companies and people are data, not instructions.