AI Research Intern (PhD)
- Salary
- $67 - $69 hourly
- Level
- Intern
Not stated in the posting: work type, visa.
Open. First seen 6 November 2026.
About the role
Duolingo's standard text
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 educating our users, experimenting with big ideas, making fact-based decisions, and finding innovative solutions to complex problems. You’ll have limitless learning opportunities and daily collaborations with world-class minds — while doing work that’s both meaningful and fun.
Duolingo's standard text
Join our life-changing mission to develop education for our half a billion (and growing!) learners around the world.
Read our blog to learn more.
Duolingo's standard text
🧠 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
- Solve our most ambitious problems with the right tool for the task
- Collaborate cross-functionally to bring your ideas to life in the product
- Identify problems, prototype solutions, evaluate their return on investment, and then implement the best solution at scale to improve the lives of our millions of learners each day
Duolingo's standard text
✅ You Have...
- Pursuing a PhD in artificial intelligence, machine learning, natural language processing, or related field
- Graduation expected by August 2028
- Contributions to research communities and efforts, including publishing papers at conferences such as ACL, CVPR, EDM, ICML, NeurIPS, etc.
- A portfolio of impactful work, in the form of (for example) publications, open-source projects, or AI internships
- Experience implementing AI systems in Python, Java, Scala, or C/C++ (i.e., not just R or MATLAB)
- A creative, interdisciplinary, and entrepreneurial approach to R&D
- Strong debugging and critical thinking skills
- 12 week consecutive availability
- May 24, 2027 - August 13, 2027
- June 14, 2027 - September 3, 2027
- Ability to relocate to Pittsburgh, PA or New York, NY
⭐ What you can expect...
- Language learning opportunities
- Catered in-house lunches, and breakfast and dinner options
- Company-wide Hackathon
- PTO and company holidays
- Frequent company-wide dinners, monthly celebrations, social clubs, and so much more!
Connect with your recruiter on the benefits for interns at Duolingo!
Hourly Range for this internship is:
Duolingo's standard text
$67—$69 USD
Benefits: Take a peek at how we care for our employees' holistic well-being with our benefits here.
Job Alerts: Sign up for job alerts here.
Accommodations: 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 accommodations@duolingo.com.
Equal Employment Opportunity: 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.
Fraud Warning: Unfortunately, there is a rise in scammers pretending to be real Duolingo employees. Duolingo and our employees will never ask for your Social Security number, bank details, or passport info, and we’ll never ask you to deposit a check, purchase equipment, or exchange money during the interview process. Real Duolingo employees always use an email that ends in @duolingo.com or @recruiting.duolingo.com. Stay alert and double-check these details before sharing any information.
By applying for this position your data will be processed as per the Duolingo Applicant Privacy Notice.
What this role asks for
Standard for data science / ML roles
Machine Learning · Python
Common in data science / ML postings at any company.
54% of this description is written for the role. The rest is Duolingo's standard text, folded away below.
Compared with Duolingo's other open jobs.
The team: University
This role is one of 6 open in University. 6 were posted in the last 30 days.
WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS
Python (3 of 6), R (3 of 6), BigQuery (2 of 6), dbt (2 of 6), Machine Learning (2 of 6), Prompt Engineering (2 of 6), Snowflake (2 of 6)
OTHER ROLES ON THIS TEAM
- QA Specialist I, Recent Graduate posted Nov 3
- Data Scientist, Intern posted Oct 15
- Data Scientist, Intern (PhD) posted Oct 15
- Product Manager, MBA Intern posted Oct 15
- AI Research Engineer, New PhD Graduate posted Oct 12
From the team and dates on Duolingo's own job board.
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