Senior/iOS Engineer II
DuolingoOur 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
We are hiring for multiple levels for any one of the following teams. Leveling is usually determined once all interviews are completed.
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. 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 c
Listed via
Greenhouse
Similar roles
Sr. Customer Support Engineer, Raipur
Danaher
Collibra Platform Developer (Mid to Senior)
Arch Capital Group Ltd.
Scheduling Director (Renewables Construction)
MasTec Industrial
Mom and Baby Care Manager - RN - Must reside in Nevada
CareSource
Design & Tech
Related reads from TCHNX
The Quiet Revolution in Local-First Software
As major platforms face outages and data breaches, a new generation of developers is building applications that prioritise local data storage and peer-to-peer sync, challenging the cloud-first orthodoxy that's dominated tech for two decades.
The Return of Physical Controls: Why Haptic Feedback Is Reshaping Digital Interfaces
After years of pursuing flat, buttonless designs, tech companies are rediscovering the value of tactile interaction. A new wave of products proves that touching isn't just feeling it's understanding.
The Quiet Revolution of Parametric Design Tools in Everyday Products
Parametric design is migrating from architecture studios to consumer products. As tools democratize and manufacturers adopt flexible production, we're entering an era of mass customization that challenges fundamental assumptions about design.