Senior iOS Engineer — Ads Monetization & Growth

Duolingo; Pittsburgh (Allegheny County); On-site; USD 178,000 - 240,000; Full time

Benefits offered by this job

Equity compensation

Job summary

Duolingo is seeking a Senior iOS Engineer on the Ads team to build and scale high-quality iOS experiences in a data-driven environment. You will collaborate across product, design, data science, and operations to deliver ads that fit seamlessly into the app and support the company’s monetization goals.

The role emphasizes Swift-based iOS development, mentorship of juniors, and ownership of production-grade APIs. Equity compensation is part of the offer, alongside competitive benefits.

Qualifications

• Bachelor’s degree in Computer Science or a related technical field.
• Strong CS fundamentals: data structures, algorithms, and software design.
• Experience programming in Swift.

Responsibilities

• 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.

Skills

Swift

iOS development

API design

Multithreading

Education

Bachelor’s degree in CS or related field

Tools

Cocoa Touch

Xcode

Job description

Duolingo is seeking a Senior iOS Engineer on the Ads team to build and scale high-quality iOS experiences in a data-driven environment. You will collaborate across product, design, data science, and operations to deliver ads that fit seamlessly into the app and support the company’s monetization goals.

The role emphasizes Swift-based iOS development, mentorship of juniors, and ownership of production-grade APIs. Equity compensation is part of the offer, alongside competitive benefits.