Senior iOS Engineer

Mozilla

. Design, write, maintain, and debug software for large and sophisticated mobile applications .

Posted 11/4/2026full-timeRemote • CanadaSenior💰 CA$95,000 - CA$139,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Proficient in designing, writing, and maintaining mobile applications using Swift, with a strong emphasis on code quality through testing and code reviews. Demonstrates effective collaboration and communication skills within a distributed team environment.

Highest-signal resume keywords

Expert Coding Skills In SwiftExperience Building Native iOS/iPadOS ApplicationsUnderstanding Of Web TechnologiesWriting And Maintaining Unit And Integration TestsExcellent Written And Verbal Communication Skills In English

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

SwiftIOS DevelopmentIPadOS DevelopmentUnit TestingIntegration TestingCode ReviewDebuggingProfiling CodeMobile Application DevelopmentSoftware Design

Soft Skills

MentoringCollaborationPassion For LearningKnowledge SharingEffective Communication

Tools & Technologies

Mozilla Open Source ProjectGeographically Distributed Teams

Industry Keywords

Mobile ApplicationsUser InteractionApp StabilityCode Base ManagementSoftware Quality Standards

Tech Stack

Tools & technologies

iOSJavaScriptOpen SourceSwift

About the role

Key responsibilities & impact

Design, write, maintain, and debug software for large and sophisticated mobile applications
Uphold standards for quality by performing code reviews, fixing bugs, crafting tests, and profiling code
Collaborate with other teams and mentor others
Craft experiments to build a better understanding how users interact with our apps
Monitor app stability and address crashes
Become proficient with our Swift code base
Collaborate with a geographically distributed team
Work in the open as part of the Mozilla open source project, and engage with Mozilla’s global community

Requirements

What you’ll need

Experience building and shipping native iOS/iPadOS mobile applications
Expert coding skills in Swift
Understanding of web technologies (HTTP, HTML, JavaScript)
Ability to learn and be effective with a large code base
Familiar with writing and maintaining unit and integration tests
Passionate about learning and sharing knowledge with others
Excellent written and verbal communication skills in English
Willing to work with, learn, and grow with an outstanding set of people

Benefits

Comp & perks

Generous performance-based bonus plans to all eligible employees - we share in our success as one team
Rich medical, dental, and vision coverage
Generous retirement contributions with 100% immediate vesting (regardless of whether you contribute)
Quarterly all-company wellness days where everyone takes a pause together
Country specific holidays plus a day off for your birthday
One-time home office stipend
Annual professional development budget
Quarterly well-being stipend
Considerable paid parental leave
Employee referral bonus program
Other benefits (life/AD&D, disability, EAP, etc. - varies by country)