Demo

Senior iOS Engineer

Duolingo
Duolingo Salary
Pittsburgh, PA Full Time
POSTED ON 6/7/2026
AVAILABLE BEFORE 8/25/2026
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

Core App Performance Team

The Core App Experience team is in charge of improving the user experience in core flows of the iOS and Android apps to drive user growth. Sitting in between the intersection of technical and product work, you will drive technical improvements in app open, session start and end, and improving the offline experience. We're looking for engineers who are willing to deep dive into the codebase and provide their suggestions on how to improve the everyday experience of our users.

🧠 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

✅ 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

⭐ 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.

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.

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. Real Duolingo employees always use an email that ends in @duolingo.com or @recruiting.duolingo.com. Stay alert and double-check these details before sharing any information.

Sign up for job alerts here.

Salary : $177,700 - $240,400

If your compensation planning software is too rigid to deploy winning incentive strategies, it’s time to find an adaptable solution. Compensation Planning
Enhance your organization's compensation strategy with salary data sets that HR and team managers can use to pay your staff right. Surveys & Data Sets

What is the career path for a Senior iOS Engineer?

Sign up to receive alerts about other jobs on the Senior iOS Engineer career path by checking the boxes next to the positions that interest you.
Income Estimation: 
$123,167 - $152,295
Income Estimation: 
$146,673 - $180,130
Income Estimation: 
$91,370 - $117,201
Income Estimation: 
$115,390 - $147,559
Income Estimation: 
$106,780 - $140,358
Income Estimation: 
$104,963 - $131,876
Employees: Get a Salary Increase
View Core, Job Family, and Industry Job Skills and Competency Data for more than 15,000 Job Titles Skills Library

Job openings at Duolingo

  • Duolingo York, NY
  • 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! ... more
  • 5 Days Ago

  • Duolingo Pittsburgh, PA
  • Duolingo is the world's most popular learning app. Beyond our core learning product, we also offer English proficiency testing with the Duolingo English Te... more
  • 6 Days Ago

  • Duolingo Pittsburgh, PA
  • Our mission at Duolingo is to develop the best education in the world and make it universally available. It’s a big mission, and even though we've made a l... more
  • 7 Days Ago

  • Duolingo York, NY
  • 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! ... more
  • 7 Days Ago


Not the job you're looking for? Here are some other Senior iOS Engineer jobs in the Pittsburgh, PA area that may be a better fit.

  • Credit Genie Pittsburgh, PA
  • Company Credit Genie is a mobile-first financial wellness platform designed to help individuals take control of their financial future. We leverage artific... more
  • 1 Month Ago

  • PNC Pittsburgh, PA
  • Position Overview At PNC, our people are our greatest differentiator and competitive advantage in the markets we serve. We are all united in delivering the... more
  • 23 Days Ago

AI Assistant is available now!

Feel free to start your new journey!