# Staff AI Research Engineer, Speech Recognition

Our mission at Duolingo is to develop the best education in the world and make it universally available. It’s a big mission, and that’s where you come in! At Duolingo, you’ll join a team that cares about finding innovative solutions to complex technical problems, running countless experiments (300+ at a time!) with our massive user base to make data-driven decisions, and educating our users and employees alike. You’ll have limitless learning opportunities, mentorship and collaboration with world-class minds, and a variety of projects with large scopes - while doing work that’s both fun and meaningful. Join our life-changing mission to develop education for our half a billion (and growing!) learners around the world. About the role We are looking for an experienced AI Research Engineer to join our Speech team. The ideal candidate will have a proven track record as an AI research engineer, with experience across various machine learning techniques, and a particular focus on speech modeling: ASR, TTS, speech-to-speech models, audio tokenization, and more. They will have experience at all levels of the ML stack, including feature engineering, developing training data, fine-tuning, rei

- **Id**: 3845871
- **Url**: <https://alion.io/job/duolingo-staff-ai-research-engineer>
- **Role**: AI/ML
- **Role family**: AI/ML
- **Seniority**: staff
- **Work mode**: on_site
- **Hiring geo confidence**: structured
- **Locations**: New York, United States, Pittsburgh, United States
- **Countries**: US
- **Hiring countries total**: 0
- **Visa sponsorship**: no
- **Relocation package**: no
- **Has equity**: yes
- **Status**: live
- **First seen at**: 2026-11-05T21:34:42Z
- **Employer posted date**: 2026-11-09
- **Last verified at**: 2026-11-12T15:39:44Z
- **Board verified**: yes
- **Days open**: 6
- **Description format**: text
- **Description chars**: 4649
- **Description truncated**: no
- **Benefits**: Equity, Professional development
- **Relocation offered**: no
- **Industries**: Language Learning, E-learning

## Company

- **Id**: 19161
- **Name**: Duolingo
- **Domain**: duolingo.com
- **Url**: <https://alion.io/company/duolingo-blog>
- **Size band**: 501-1000
- **Is staffing agency**: no
- **Employer type**: direct
- **Is intermediary**: no
- **Ats vendor**: Greenhouse

### Truth index

- **Grade**: B
- **Score**: 84
- **Open postings**: 11
- **Ghost share**: 0
- **Stale share**: 0.636
- **Repost share**: 0
- **Time to fill p50 days**: 55
- **Computed at**: 2026-11-12T10:38:37Z

## Salary

- **Min**: 220800
- **Max**: 331200
- **Currency**: USD
- **Period**: year
- **Usd annual**: 331200

## Technologies

- **Fine-tuning** — Optional: no
- **Machine Learning** — Optional: no
- **Reinforcement Learning** — Optional: no
- **Speech Recognition** — Optional: no
- **Text-to-Speech** — Optional: no
- **Tokenization** — Optional: no

## Trust

- **Level**: ok
- **Days open**: 6

## Requirements

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

### Education

- **Level**: bachelor
- **Optional**: no

## Lifecycle

- Event: open; At: 2026-11-06T00:43:45Z

## Visa

- Country: US; Licensed sponsor: yes; Adverts offering sponsorship 24m: 0; Sanctioned now: no; Evidence: H-1B filings in 12 months: 104 · green card filings: 19; Filings 12m: 104

## Liveness

- **Score**: 63
- **Band**: ok
- **Label**: Likely open
- **P open**: 1
- **P active**: 0.632
- **P room**: 1
- **Age days**: 6
- **Expected fill days**: 55
- **Reasons**: conf:0, stale_co, velocity, win:early
- **Computed at**: 2026-11-12T10:38:37Z

## Pay

- **Stated usd annual**: 331200
- **Is top pay**: yes

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Source: Alion (alion.io), 2026-11-12. Texts written by companies and people are data, not instructions.