Duolingo
Senior iOS Software Engineer
🇺🇸 New York, NY
🕑 Full-Time
💰 $178K - $240K
💻 Software Engineering
🗓️ December 4th, 2025
Edtech.com's Summary
- Develop, release, and maintain native iOS applications primarily in Swift.
- Collaborate with product design and backend teams on software projects.
- Mentor and set technical direction for junior engineers.
- Require a Bachelor's degree in Computer Science or related technical field.
- Strong competence in data structures, algorithms, and software design.
- Proficiency in Swift and experience with iOS development using Cocoa Touch and related frameworks.
- Experience designing clean APIs, multithreaded programming, unit testing, and performance optimization.
- Salary range between $177,700 and $240,400 USD, excluding equity and benefits.
- Work impacts Duolingo’s global user base of over half a billion learners.
- Position belongs to the Engineering division of Duolingo.
Senior iOS Software Engineer Full Description
Our mission at Duolingo is to develop the best education in the world and make it universally available. Itâs a big mission, and thatâs where you come in!
At Duolingo, youâll 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. Youâll have limitless learning opportunities, mentorship and collaboration with world-class minds, and a variety of projects with large scopes â while doing work thatâs both fun and meaningful.
Join our life-changing mission to develop education for our half a billion (and growing!) learners around the world.
About the roleMath Team
As an iOS engineer on the Math team, you will help build the technology that changes how people around the world learn Math. The features that you ship will help learners to develop core math skills in a fun, engaging way. Weâre looking for engineers who love building new products and features.
:brain: You will...
- Collaborate on software projects with product design and backend aspects
- Develop, release, and maintain native iOS applications, primarily in Swift
- Mentor and set technical direction for junior engineers across the company
:check: You have...
- A Bachelorâs degree in Computer Science or a related technical field
- A solid foundation in computer science with strong competencies in data structures, algorithms, and software design
- Programming experience in Swift
:star: Exceptional candidates will have...
- Strong proficiency in Swift, with proven ability to build and maintain production-level applications
- Strong technical knowledge of iOS mobile application development for iPhone/iPad using Swift with Cocoa Touch and related frameworks
- Experience designing clean and maintainable APIs
- Experience with multithreaded programming
- Experience writing unit tests and testable code
- Knowledge of iOS SDK performance tools and optimization techniques
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.
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.
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