Senior/iOS Engineer II
Delight Team
The Delight team makes Duolingo feel more fun, rewarding, and motivating by adding delightful moments throughout Duolingo's core app experiences like lessons. The team experiments with experiences like lesson combos, random reward chests, lesson complete, animations, sound effects, haptics.
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.
Careers
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
Requirements
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
Preferred Qualifications
- 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
Salary Range
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.
Benefits
We encourage you to take a peek at how we care for our employees' holistic well-being with our benefits here.