Job Application for AI Research, Intern (PhD) at Duolingo

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.

You will...

Apply AI methods to massive real-world datasets
Prototype new models, evaluate with small scale experiments, and/or productionize solutions at scale
Work with a cross-functional team of world class researchers, engineers, and others to build new product features and/or publish state-of-the-art findings

You have...

Contributions to research communities and efforts, including publishing papers at conferences such as ACL, CVPR, EDM, ICML, NeurIPS, etc.
Experience implementing AI systems in Python, Java, Scala, or C/C++ (i.e., not just R or MATLAB)

Requirements...

Pursuing a PhD in artificial intelligence, machine learning, natural language processing, or related field
Graduation expected by August 2026
12 week consecutive availability
Ability to relocate to Pittsburgh, PA

Why you’ll love working here…

Language learning opportunities
Catered in-house lunches, and breakfast
Company-wide Hackathon
PTO and company holidays
Frequent company-wide dinners, monthly celebrations, social clubs, and so much more!

Take a peek at how we care for our employees' holistic well-being with our benefits here.

We will do everything we can within reason to make sure that your interview takes place in an environment that fairly and accurately assesses your skills. If you need assistance or accommodation, please contact your recruiter.

Duolingo is proud to be an Equal Employment Opportunity employer. We do not discriminate based upon race, religion, color, national origin, gender (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, gender expression, age, status as a protected veteran, status as an individual with a disability, or other applicable legally protected characteristics.

By applying for this position your data will be processed as per the Duolingo Applicant Privacy Notice.

We invest in and support our Duos!

Hourly Range for this internship is:

$63 - $65 USD

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Rewriting the Code

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To fulfill our mission of developing the best education in the world and making it universally available, we seek exceptional talent for every role. We recruit candidates from diverse backgrounds. To help us evaluate our hiring process for equitability, we invite U.S. applicants to share their demographic information. Participation in this survey is voluntary and confidential. Participation will not affect any hiring decisions or outcomes.

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AI Research, Intern (PhD)

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