Full-Stack Software Engineer Intern — Impact & Growth

Duolingo; New York (NY); On-site; USD 74,000 - 77,000; Part time

Benefits offered by this job

Mentor support

Mission-driven environment

PTO and holidays

Company events and social activities

Job summary

Duolingo is seeking a technically passionate student for a hands-on internship in New York. You’ll contribute to full-stack projects, help build services, and maintain infrastructure while learning from senior engineers.

You’ll participate in code reviews and collaborate across teams to ensure scalable, high-quality software that supports millions of learners worldwide. You’ll work under close mentorship, gain practical experience across product areas, and experience a fun, mission-driven

Qualifications

• Pursuing a B.S./M.S. in Computer Science or related technical field.
• Graduating December 2027 - August 2028.
• Dedication to Duolingo's mission of accessible education.
• Programming experience in Java, Python, Kotlin, or Swift.
• 12 weeks of consecutive availability: May 24, 2027 – Aug 13, 2027 or Jun 14, 2027 – Sep 3, 2027.
• Deadline to apply: Sept 30, 2026.

Responsibilities

• 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

Skills

Java

Python

Kotlin

Swift

Education

B.S./M.S. in Computer Science or related field

Tools

A/B testing framework

Observability stack

Job description

Duolingo is seeking a technically passionate student for a hands-on internship in New York. You’ll contribute to full-stack projects, help build services, and maintain infrastructure while learning from senior engineers.

You’ll participate in code reviews and collaborate across teams to ensure scalable, high-quality software that supports millions of learners worldwide. You’ll work under close mentorship, gain practical experience across product areas, and experience a fun, mission-driven