Mozilla · 7 hours ago
Staff Mobile Engineer, iOS New
United States
Full-time
Remote
Senior Level, Lead/Staff
$150K/yr - $170K/yr
10+ years expMZLA Technologies Corporation is a subsidiary of the Mozilla Foundation that develops Thunderbird, an open-source email and productivity platform. They are seeking a Staff Mobile Engineer, iOS to lead mobile initiatives and contribute to the architectural decisions of Thunderbird’s iOS application while ensuring high-quality user experiences.
Telecom & CommunicationsSoftwareBrowser ExtensionsInternetOpen SourceWeb Browsers
No H1B
Responsibilities
Tackle complex and ambiguous technical challenges in mobile development that require thoughtful design, planning, and coordination
Serve as a technical lead on major iOS initiatives, including feature development, architectural improvements, and targeted refactoring
Collaborate with senior engineers and engineering leadership on mobile technical direction and architectural decisions
Drive improvements to code quality by reducing technical debt and improving performance, stability, and build health
Partner closely with product and UX teams to ensure usability and accessibility are integral to iOS implementations
Write high-quality, testable, and maintainable iOS code, contributing to a consistent and reliable codebase
Mentor and support other engineers through code reviews, technical guidance, and knowledge sharing
Contribute to improving engineering practices and workflows, and stay current with iOS technologies and best practices
Qualification
Required
10+ years of professional software development experience, including significant experience working on complex mobile applications at senior level
Deep experience with Swift and iOS frameworks required
Expertise with mobile architectures, platform constraints, and application lifecycle management on iOS
Proven experience leading complex technical work and contributing to architectural decisions, with the ability to act as a technical lead and mentor supporting the growth of other engineers
Solid understanding of software engineering best practices, including system design, testing strategies, and release considerations for mobile applications, along with working knowledge of mobile security and privacy practices
Experience with communication and email protocols such as RSS, IMAP, POP, or Matrix, and familiarity with the IETF standards for CalDav or CardDav
Proficiency with Git and collaborative development workflows, including code review and CI systems
Excellent communication skills, documentation skills, and the ability to work with a multi-disciplinary, geographically distributed team, with a product-oriented mindset considering user impact and business context
Preferred
Experience contributing to or maintaining open-source projects
Familiarity with mobile release processes and app store requirements
Experience improving development processes, tooling, or workflows within a team
Experience with shared mobile components or cross-platform patterns is a plus
Benefits
Fully remote work & schedule flexibility
Latest Laptop
Discretionary Annual Bonus Program
Monthly Remote Work Stipend
Annual Professional Development Stipend
Access to Udemy Learning Platform
Industry Conferences
Company All Hands
24 days PTO per year (prorated)
Your Birthday
Year-end Company Shutdown
9 Wellbeing Days
Public Holidays
Other Paid Leave
Quarterly Wellbeing Stipend for Personal / Family Activities
401(k) / RRSP Contributions
Health, Dental, & Vision Insurance
Disability Insurance
Life Insurance
Employee Assistance Program
Paid Parental Leave
Paid Sick Days
Company
Mozilla
Mozilla provides internet solutions and offers firefox, thunderbird, and raindrop.
501-1000 employees
Funding
Current Stage
Late StageTotal Funding
$2.3MKey Investors
AOL
2005-01-01Angel· $0.3M
2003-07-15Series Unknown· $2M
Leadership Team
John Shaughnessy
Manager, Engineering and Ecosystem Strategy
Recent News
2026-02-09
Help Net Security
2026-02-08
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