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Senior Software Engineer, Backend

Duolingo

Software and Technology Jobs

Senior Software Engineer, Backend

full-timePosted: Dec 18, 2025

Job Description

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.


Below you can find more information about the team we're hiring for:

Chess team:
The Chess team builds engaging, educational features through Duolingo’s signature approach to learning. On this team, you will shape core product experiences by improving gameplay and creating engaging, high-quality course content. As an engineer building Duolingo's newest product, you can expect to move quickly, prototype boldly, and experiment often!

Social Team:

The Social team is building features to make social interactions a fundamental part of the core Duolingo experience. As an engineer on this team, you will develop social features, own projects from end-to-end, iterate quickly based on experiments, and be a part of big bets that will help drive new rewards and deeper connections. We're looking for engineers who are passionate about building fun, high-quality social experiences.

Math Teaching Team:

The Math Teaching team builds engaging learning experiences that help learners make sense of math. We bring together strong pedagogy, thoughtful design, engineering, and best-in-class AI to create and scale content that makes math approachable for everyone. As an engineer, you'll shape how learners discover new ideas by building new exercise types, imagining new concept-teaching moments, and experimenting quickly to make math intuitive, fun, and effective at scale.

icon-brain-16px  You will...

  • Collaborate on software projects with product design and backend aspects
  • Develop, release, and maintain backend services and/or infrastructure
  • Lead individual project priorities, milestones, and ensure we're always shipping

 

icon-check-16px  You have...

  • A Bachelor’s degree in Computer Science or related technical field
  • Strong competencies in data structures, algorithms, and software design
  • Experience programming in Java, Python, or Kotlin
  • Solid understanding of one or more database technologies

 

icon-star-16px  Exceptional candidates will have...

  • Industry experience building high-traffic APIs using public cloud providers

 

We post a multi-level salary range for all of our roles.

This is not inclusive of the rest of our awesome portfolio that includes equity compensation and world-class benefits. Our salary ranges are the same for all US locations. Your recruiter can share more details about the range for a specific level during the hiring process. The actual salary within the range is determined by many factors including but not limited to, skills, experience, education, and internal equity.

Salary Range:
$177,700$240,400 USD

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 accommodations@duolingo.com.

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.

Sign up for job alerts here.

Locations

  • New York, New York, United States

Salary

Salary details available upon request

Estimated Salary Rangemedium confidence

180,000 - 300,000 USD / yearly

Source: ai estimated

* This is an estimated range based on market data and may vary based on experience and qualifications.

Skills Required

  • data structuresintermediate
  • algorithmsintermediate
  • software designintermediate
  • Javaintermediate
  • Pythonintermediate
  • Kotlinintermediate
  • database technologiesintermediate

Required Qualifications

  • A Bachelor’s degree in Computer Science or related technical field (experience)
  • Strong competencies in data structures, algorithms, and software design (experience)
  • Experience programming in Java, Python, or Kotlin (experience)
  • Solid understanding of one or more database technologies (experience)

Preferred Qualifications

  • Industry experience building high-traffic APIs using public cloud providers (experience)

Responsibilities

  • Collaborate on software projects with product design and backend aspects
  • Develop, release, and maintain backend services and/or infrastructure
  • Lead individual project priorities, milestones, and ensure we're always shipping

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Duolingo logo

Senior Software Engineer, Backend

Duolingo

Software and Technology Jobs

Senior Software Engineer, Backend

full-timePosted: Dec 18, 2025

Job Description

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.


Below you can find more information about the team we're hiring for:

Chess team:
The Chess team builds engaging, educational features through Duolingo’s signature approach to learning. On this team, you will shape core product experiences by improving gameplay and creating engaging, high-quality course content. As an engineer building Duolingo's newest product, you can expect to move quickly, prototype boldly, and experiment often!

Social Team:

The Social team is building features to make social interactions a fundamental part of the core Duolingo experience. As an engineer on this team, you will develop social features, own projects from end-to-end, iterate quickly based on experiments, and be a part of big bets that will help drive new rewards and deeper connections. We're looking for engineers who are passionate about building fun, high-quality social experiences.

Math Teaching Team:

The Math Teaching team builds engaging learning experiences that help learners make sense of math. We bring together strong pedagogy, thoughtful design, engineering, and best-in-class AI to create and scale content that makes math approachable for everyone. As an engineer, you'll shape how learners discover new ideas by building new exercise types, imagining new concept-teaching moments, and experimenting quickly to make math intuitive, fun, and effective at scale.

icon-brain-16px  You will...

  • Collaborate on software projects with product design and backend aspects
  • Develop, release, and maintain backend services and/or infrastructure
  • Lead individual project priorities, milestones, and ensure we're always shipping

 

icon-check-16px  You have...

  • A Bachelor’s degree in Computer Science or related technical field
  • Strong competencies in data structures, algorithms, and software design
  • Experience programming in Java, Python, or Kotlin
  • Solid understanding of one or more database technologies

 

icon-star-16px  Exceptional candidates will have...

  • Industry experience building high-traffic APIs using public cloud providers

 

We post a multi-level salary range for all of our roles.

This is not inclusive of the rest of our awesome portfolio that includes equity compensation and world-class benefits. Our salary ranges are the same for all US locations. Your recruiter can share more details about the range for a specific level during the hiring process. The actual salary within the range is determined by many factors including but not limited to, skills, experience, education, and internal equity.

Salary Range:
$177,700$240,400 USD

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 accommodations@duolingo.com.

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.

Sign up for job alerts here.

Locations

  • New York, New York, United States

Salary

Salary details available upon request

Estimated Salary Rangemedium confidence

180,000 - 300,000 USD / yearly

Source: ai estimated

* This is an estimated range based on market data and may vary based on experience and qualifications.

Skills Required

  • data structuresintermediate
  • algorithmsintermediate
  • software designintermediate
  • Javaintermediate
  • Pythonintermediate
  • Kotlinintermediate
  • database technologiesintermediate

Required Qualifications

  • A Bachelor’s degree in Computer Science or related technical field (experience)
  • Strong competencies in data structures, algorithms, and software design (experience)
  • Experience programming in Java, Python, or Kotlin (experience)
  • Solid understanding of one or more database technologies (experience)

Preferred Qualifications

  • Industry experience building high-traffic APIs using public cloud providers (experience)

Responsibilities

  • Collaborate on software projects with product design and backend aspects
  • Develop, release, and maintain backend services and/or infrastructure
  • Lead individual project priorities, milestones, and ensure we're always shipping

Target Your Resume for "Senior Software Engineer, Backend" , Duolingo

Get personalized recommendations to optimize your resume specifically for Senior Software Engineer, Backend. Takes only 15 seconds!

AI-powered keyword optimization
Skills matching & gap analysis
Experience alignment suggestions

Check Your ATS Score for "Senior Software Engineer, Backend" , Duolingo

Find out how well your resume matches this job's requirements. Get comprehensive analysis including ATS compatibility, keyword matching, skill gaps, and personalized recommendations.

ATS compatibility check
Keyword optimization analysis
Skill matching & gap identification
Format & readability score

Tags & Categories

Software EngineeringSoftware Engineering

Answer 10 quick questions to check your fit for Senior Software Engineer, Backend @ Duolingo.

Quiz Challenge
10 Questions
~2 Minutes
Instant Score

Related Books and Jobs

No related jobs found at the moment.