Role Overview
Duolingo is hiring a Senior iOS Engineer. This is a full-time role in Pittsburgh. Part of Duolingo's Backend hiring, posted 2 weeks ago. Full responsibilities, required qualifications, and the apply link are listed in the description below.
Salary Context
Salary is not disclosed in this posting. Market median for Senior-level Backend roles is $162k-$215k (based on 106 comparable listings). Many employers share specifics during the interview process or after an initial screen.
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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.
About the role
Ads Team:
Duolingo's Monetization pillar builds the systems that fund our mission: from subscription packaging and advertising to ML-powered personalization and beyond. As a Senior iOS Engineer on Ads, you'll work on a product engineering team responsible for growing and scaling Duolingo's ads business: bringing high-quality ads that delight learners, fit seamlessly into our product experience, and meaningfully contribute to Duolingo’s bottom line. The team will own the systems behind ad serving, mediation and demand, in-product ad formats and surfaces, and more. You'll work cross functionally with product, design, data science, machine learning, and ad operations.
🧠 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
The offered salary is dependent upon several factors, including work experience, skills, and internal peer comparisons. The posted range is subject to change in the future. For this role, base salary is supplemented by equity compensation. We encourage you to talk with your recruiter for more information related to compensation for this role!
Benefits: Take a peek at how we care for our employees' holistic well-being with our benefits here.
Job Alerts: Sign up for job alerts here.
Accommodations: 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.
Equal Employment Opportunity: 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.
Fraud Warning: 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.
About Duolingo
Duolingo
duolingo.com
52 other open roles at Duolingo on TryApplyNow.
Frequently Asked Questions
How do I apply for the Senior iOS Engineer position at Duolingo?
Use the Apply button above to submit your application directly to Duolingo. Most applications take less than 5 minutes if your resume and contact details are ready, and you'll be routed to the employer's official application system to finish.
Where is the Senior iOS Engineer position at Duolingo located?
This position is based in Pittsburgh. Duolingo has not indicated remote or hybrid options for this role, so candidates should plan for on-site work.
What does a Senior iOS Engineer at Duolingo earn?
Duolingo has not disclosed a salary range in this posting. Many employers share specifics later in the interview process; you can also ask during a recruiter screen if compensation transparency is important to you.
When was the Senior iOS Engineer role at Duolingo posted?
This role was posted on July 6, 2026 (16 days ago). It's still listed as actively hiring; we re-confirm openings against the source system multiple times per day and remove closed roles.
How much experience does the Senior iOS Engineer role at Duolingo require?
This is a senior-level position. Most senior roles call for 5+ years of directly relevant experience. Duolingo lists their specific requirements in the description below, so review the must-have qualifications closely before applying.
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