Software Engineer, Intern

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.

Join our life-changing mission to develop education for our half a billion (and growing!) learners around the world. 

What you'll do...

• Contribute to full-stack software projects by developing, testing, and maintaining features and services.

• Develop, release, and maintain services and/or infrastructure

• Lead individual project priorities, deadlines, and deliverables

• Contribute to code reviews and collaborate across teams to ensure quality and scalability

 What we're looking for...

• Graduating December 2027 - August 2028

• Pursuing a B.S. or M.S. degree in Computer Science or a related technical field (e.g. math, physics or data science)

• Dedication to our mission of universally available education

• Programming experience in one or more of the following languages: Java, Python, Kotlin, or Swift.

• 12 weeks of consecutive availability

  • May 24, 2027 - August 13, 2027

  • June 14, 2027 - September 3, 2027

• Deadline to apply: September 30, 2026

 What you can expect...

• Close support from your mentor and your team

• Working on features and projects that will have real impact for our learners and internal users

• A fun, mission-driven environment, where you’ll have lots of opportunities to grow as an engineer and make meaningful connections with your colleagues

  
  

Past projects include...

• Developing a GPT-4 chat interface for one of our internal tools to streamline content creation

• Integrating our A/B testing framework with our observability stack to flag experiments that introduce errors

• Spanish audio lessons to improve listening comprehension

• Crafting new lessons to teach Coordinates in our Math course

• Porting large features to new platforms (iOS, Android, web)

• Dashboards and tooling for site reliability insights

• Crafting new microservices from scratch

 Why you'll love working here...

• 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!
  
  

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.

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.

Connect with your recruiter on the benefits for interns at Duolingo!

Hourly Range for this internship is:

$54—$56 USD

AI in Hiring: Duolingo uses AI technology to assist in our hiring process. We want to be transparent about how we use this technology and your rights. We use Greenhouse Software's Talent Matching feature to assist with reviewing applications for the skills and experience we have decided are important for this role.

How it works:

1. Talent Matching reviews your resume and responses to application questions to determine the extent to which your qualifications match the job requirements selected for this role. These requirements and their desired weighting are established by our recruiters in collaboration with hiring managers.

2. All Talent Matching output is reviewed by our recruiting and hiring teams, who make the final decision on each application. Talent Matching does not automatically disposition any candidate or make hiring decisions.