2 months ago
Remote, WorldwideSenior
Base Salary
$123k - $144k/yr
Responsibilities
- Build and refine Thunderbird’s mobile products and platform architecture
- Improve scalability, performance, reliability, accessibility, security, privacy, and user experience
- Understand and make changes across the codebase and architecture
- Maintain unit, integration, automated testing, debugging, and code-review practices
- Resolve complex performance, security, and cross-platform integration issues
- Monitor application health and address issues proactively
- Document technical decisions, system architecture, and team processes
- Own projects from investigation and planning through development, validation, and delivery
- Collaborate with mobile engineers, product management, UX, Mozilla ecosystem teams, and open-source contributors
Requirements
- 7+ years of professional software development experience, including 2+ years in a Senior Software Engineer role
- 3+ years of professional mobile application development experience
- Strong experience with Swift, SwiftUI, and iOS frameworks
- Deep knowledge of iOS architecture, design patterns, and performance optimization
- Experience delivering scalable, reliable software and refactoring complex codebases
- Strong knowledge of mobile security, including encryption, secure storage, app signing, and vulnerability remediation
- Experience with RSS, IMAP, POP, or Matrix and familiarity with IETF standards for CalDav or CardDav
- Advanced proficiency with Git and collaborative development workflows
- Strong debugging, testing, problem-solving, ownership, communication, and cross-team collaboration skills
- Familiarity with Apple App Store and Google Play Store compliance guidelines is a bonus
- Open-source contribution experience and proficiency in French, German, Japanese, or another supported Thunderbird language are bonuses
Benefits
- Fully remote position with schedule flexibility
- Company-provided laptop
- Annual bonus program
- Monthly remote work stipend
- Annual professional development stipend
- Access to Coursera learning platform
- Industry conferences
- Company all-hands and team gatherings
- 24 days of paid time off per year, prorated
- Birthday leave, year-end company shutdown, nine wellbeing days, public holidays, and other paid leave
- Quarterly wellbeing stipend for personal or family activities
- 401(k) or RRSP contributions
- Health, dental, and vision insurance
- Disability and life insurance
- Employee assistance program
- Paid parental leave and paid sick days
About Mozilla
Mozilla builds open-source internet software, best known for the Firefox web browser, plus privacy tools like a VPN, password manager, and identity services. Its products are largely free and monetized through search partnerships and paid subscriptions, serving consumers, developers, and enterprises building for the web. Founded in 2005 and headquartered in San Francisco, Mozilla Corporation is wholly owned by the non-profit Mozilla Foundation.