Senior iOS Engineer — Build Core App Layers & Features

Quizlet; San Francisco (CA); Hybrid; USD 140,000 - 210,000; Full time

Benefits offered by this job

Healthy work-life balance

20 vacation days

Health insurance (medical, dental, vis

401k with company match

LinkedIn Learning access

Paid Family Leave

FSA/HSA and commuter benefits

Volunteer time off (40 hours)

Job summary

Quizlet is hiring a Senior Engineer for the UX Foundations team in a hybrid role based in San Francisco. You will own core iOS app layers—shared libraries, SDKs, security, CI/CD—and ship user-facing features. The role includes mentoring engineers and collaborating with product teams to deliver high-quality mobile experiences for learners worldwide.

The position supports remote candidates in the US and requires in-office presence 2 days per week in SF or NY if local. Hybrid work arrangement in SF.

Qualifications

• 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.

Responsibilities

• Design, build, and maintain the core iOS app layers—shared libraries, SDKs, and frameworks.
• Own and ship user-facing features end-to-end—from design through release.
• Own and evolve CI/CD pipelines and the release process for the iOS app.
• Collaborate with product and cross-functional partners to define requirements and deliver solutions.
• Understand and operate in existing systems; propose improvements and new ideas.
• Drive incident investigations, post mortems, and retrospectives; advocate for long-term improvements.
• Influence engineering practices to improve quality of software, testing, and processes.

Skills

Mobile software development

Problem solving & debugging

iOS or Android development

Willingness to learn

Verbal & written communication

Job description

Quizlet is hiring a Senior Engineer for the UX Foundations team in a hybrid role based in San Francisco. You will own core iOS app layers—shared libraries, SDKs, security, CI/CD—and ship user-facing features. The role includes mentoring engineers and collaborating with product teams to deliver high-quality mobile experiences for learners worldwide.

The position supports remote candidates in the US and requires in-office presence 2 days per week in SF or NY if local. Hybrid work arrangement in SF.