Senior iOS Software Engineer

  • 5 days (37-42 days PTO)
  • Hybird Remote, New York

Only considering candidates eligible to work in New York, USA ⚠️

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.


About the role...

As an iOS engineer on the Listening and Speaking Team, you’ll build technology that breaks down language barriers and makes it truly fun to learn. You’ll work on engaging, immersive experiences such as duoradio and roleplay that enable learners to use their language skills in the real world. In addition, you’ll help ensure that this content is ready for learners of all levels across dozens of languages. We’re looking for engineers who are passionate about building new features to further our mission of making education freely available to everyone.

icon-brain-16px  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

icon-check-16px  You have...

  • A Bachelor’s 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

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

  • A minimum of 5 years of programming experience in Swift
  • 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.

Salary Range:

$148,800—$274,600 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 [email protected].

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.

Automatically Apply to Remote Engineering Jobs!

Let our copilot automatically search & apply to remote jobs from all across the web.

Try it now
Duolingoduolingo.com

Our mission is to develop the best education in the world and make it universally available. As the most downloaded education app, Duolingo transforms language learning into an engaging and accessible experience for millions globally.

Working Week

We work 5 days per week but offer 37 days of vacation per year.

Our Vacation Policy

All employees get 20 days PTO (rising to 25 days after 5 years), 7 company holidays, a 2-week winter break and unlimited sick time. This means our team is off almost 2 months per year! p.s. parents also can take 5 hours a week for responsibilities like school events or daycare pick-up

Remote Working Policy

Duolingo supports flexible work arrangements that blend on-site collaboration with remote work options, ensuring employees can choose the environment that best suits their productivity and personal needs.

  • Pittsburgh
    2400

Company Benefits

  • Healthcare benefits including HDHP & PPO options
  • 16 weeks fully paid parental leave and parent hours
  • Medical, dental, vision coverage
  • Equipment allowance
  • Life & Disability Insurance
  • Access to training and development programs
  • Eligibility for a fully-paid 2-month sabbatical after 10 years
  • Mental health support with free therapy and coaching sessions

Desirable Skills and Experience

  • iOS SDK
  • Cocoa Touch
  • Swift
  • Data structures
  • Algorithms
  • Software design
  • API design
  • Multithreading
  • Unit testing
  • Performance optimization

Share this job:

Report incorrect data

Let us know if the job has expired