Quizlet

Sr. iOS Engineer

Quizlet • $135K — $160K *
Consumer Technology
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • Multiple years of iOS development experience with strong expertise in Swift, SwiftUI, and UIKit.
  • Ability to own complex features from start to finish.
  • Proven track record of timely delivery and keeping up with AI advancements in coding.
  • Proficiency in mobile software problem-solving and debugging.
  • Willingness to learn and tackle new challenges with strong communication skills.

Responsibilities

  • Own and manage core iOS app layers and shared libraries critical for feature teams.
  • Collaborate closely with engineers, designers, and product managers to enhance the mobile experience.
  • Contribute to architecture decisions and influence technical direction.
  • Mentor other engineers while overseeing projects from ideation to release.
  • Ship user-facing features directly, ensuring performance and reliability.

Benefits

  • 20 vacation days annually, encouraged to be used.
  • Comprehensive health, dental, and vision insurance coverage.
  • Employer-sponsored 401k plan with a company match.
  • Access to LinkedIn Learning for ongoing professional development.
  • Paid Family Leave and various wellness benefits.
  • 40 hours of annual paid time for volunteer activities.
Full Job Description
About the Team:

UX Foundations owns Quizlet's mobile apps end to end - both the core app layers everything else is built on (shared libraries and SDKs, security, CI/CD, and the release process) and a steady stream of feature work across the app. Feature teams build user-facing features, but UX Foundations ships features directly just as often, especially where the work touches the foundation itself. We collaborate closely with feature teams, backend services, design, and product to keep the mobile app reliable, fast to build on, and moving forward for learners.

About the Role:

We're looking for a Senior Engineer to join UX Foundations. You'll split your time between owning core iOS app layers - shared libraries, SDKs, security, CI/CD, and the release process - that every feature team builds on, and shipping user-facing features directly. Both are core to the role, not one occasional on top of the other.

In this role, you'll collaborate closely with engineers, designers, and product managers to deliver high-quality mobile experiences. You'll have the opportunity to influence technical direction, contribute to architecture decisions, and mentor other engineers while driving projects from ideation through release. We're looking for someone who is passionate about creating intuitive, performant, and reliable mobile experiences that have a real impact on learners worldwide.

This role is open to remote candidates anywhere in the US, as well as candidates based in our San Francisco or New York offices. If you're based in SF or NY, we ask that you come into the office 2 days per week: Wednesday and Thursday, or as needed by your manager or the company. We believe that this working environment facilitates increased work efficiency, team partnership, and supports growth as an employee and organization.

In this role, you will:
  • Multiple years of iOS development experience with a deep knowledge of Swift, SwiftUI, and UIKit
  • Capable of owning complex features end-to-end
  • A track record of delivering results quickly and staying on top of new ways to code with AI
  • Strong problem solving and debugging skills on mobile software products
What you bring to the table:
  • Multiple years of experience in mobile software development
  • Strong problem solving and debugging skills on mobile software products
  • Proficiency in either iOS or Android development and some level of comfort with the other.
  • Eagerness to learn, grow, and take on new challenges
  • Excellent verbal and written communication skills across a range of audiences
Bonus points if you have:
  • Experience running paywall experiments with tools like Superwall or RevenueCat
  • Side projects that you shipped to the App Store
  • Willingness to make minor backend changes to own your work across the stack
Compensation, Benefits & Perks:
  • Collaborate with your manager and team to create a healthy work-life balance
  • 20 vacation days that we expect you to take!
  • Competitive health, dental, and vision insurance (100% employee and 75% dependent PPO, Dental, VSP Choice)
  • Employer-sponsored 401k plan with company match
  • Access to LinkedIn Learning and other resources to support professional growth
  • Paid Family Leave, FSA, HSA, Commuter benefits, and Wellness benefits
  • 40 hours of annual paid time off to participate in volunteer programs of choice


We strive to make everyone feel comfortable and welcome!

We work to create a holistic interview process, where both Quizlet and candidates have an opportunity to view what it would be like to work together, in exploring a mutually beneficial partnership.

We provide a transparent setting that gives a comprehensive view of who we are!

About Quizlet

Quizlet is an online learning platform that provides study tools for students. The company was founded in 2005 by Andrew Sutherland and is based in San Francisco, California. Quizlet's platform allows users to create and share study materials, such as flashcards and quizzes, and offers a variety of study modes to help users learn and retain information. The company has over 50 million active users and has raised over $60 million in funding.
Learn more about Quizlet
Size
200 employees
Industry
Founded
2007

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