Role details
- 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.
IAP Team:
- The In App Purchases team owns Duolingo's in-app purchase business: the gem economy, the shop, and avatar cosmetics and collectibles.
- You'll build purchase flows and the systems behind them, then prove out what works through experimentation.
- Avatar cosmetics and collectibles are our new initiatives to drive DAU aligned monetization.
🧠 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!
Salary Range:
$177,700 — $240,400 USD
Benefits
Take a peek at how we care for our employees' holistic well-being with our benefits here .
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.
- 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.
- By applying for this position your data will be processed as per the Duolingo Applicant Privacy Notice .