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Senior Mobile Engineer, iOS
Mozilla
Remote · CanadaSalary not disclosedfull-timeMozilla Careers
The Senior Software Engineer, iOS is an experienced individual contributor who brings deep iOS expertise to the design, development, and evolution of Thunderbird’s iOS application. This role will continue to contribute to Thunderbirds effort to develop the iOS app and establish a strong technical foundation for the product.
Responsibilities
- Build and refine Thunderbird’s mobile products and platform architecture.
- Improve scalability, performance, reliability, and user experience.
- Develop a deep understanding of the codebase and architecture to confidently make changes across the entire stack.
- Maintain strong debugging and testing practices across unit, integration, and automated testing.
- Review code and guide improvements to architecture, testing, and development best practices.
- Independently resolve complex issues involving performance, security, and cross-platform integration.
- Monitor application health and address issues before they escalate.
- Document technical decisions, system architecture, and team processes.
- Own assigned projects, collaborating cross-functionally, from investigation and planning through development, validation, and delivery.
- Ensure mobile development meets accessibility, security, and privacy standards.
Languages
- Work format
- Remote
- Seniority
- Senior
- Posted
- 6 Aug 2026
- Last verified
- In the last 5 days
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