Firefox OS Integration Engineer, Mac OS Engineering (Remote - US)

This position is posted by Jobgether on behalf of a partner company. We are currently looking for a Firefox OS Integration Engineer, Mac OS Engineering in the United States.

This role focuses on ensuring a seamless and high-quality user experience for Firefox and other Gecko-based products on macOS. You will work on OS integration, stability, performance, and security improvements while collaborating closely with distributed engineering teams. The position involves developing and shipping new features, resolving bugs, and contributing to the open-source codebase. You will have the opportunity to deepen your expertise in macOS systems programming, native frameworks, and web technologies while participating in cross-team technical discussions, code reviews, and problem-solving initiatives. This role is ideal for engineers who thrive in a collaborative, distributed environment and are passionate about building software that impacts millions of users worldwide.

Accountabilities:

• Develop, test, and deliver fixes and new features for Firefox on macOS to enhance performance, security, and user experience.
• Investigate crash reports, user-submitted bugs, and system-level issues to improve software stability and reliability.
• Work with the open-source Mozilla codebase across multiple languages including C, C++, Rust, Objective-C, JavaScript, and HTML/CSS.
• Collaborate with distributed teams, participating in design discussions, planning, and code reviews to ensure alignment and quality.
• Document design choices and technical solutions to support knowledge sharing and foster team learning.
• Support OS integration tasks such as sandboxing, crash reporting, and implementing macOS-specific features.

Requirements

• Degree in Computer Science or a related field, or equivalent professional experience.
• Experience in systems programming with C, C++, Objective-C, or Rust.
• Familiarity with macOS application development, including native frameworks like AppKit or Cocoa (preferred but not required).
• Knowledge of web technologies such as JavaScript, HTML, and CSS.
• Strong problem-solving, debugging, and analytical skills.
• Effective written and verbal communication skills and a collaborative mindset.
• Ability to thrive in a distributed team environment and contribute effectively across time zones.

Benefits

• Competitive base salary: US Tier 1 Locations $113,000–$164,000 USD; Tier 2 $102,000–$149,000 USD; Tier 3 $95,000–$138,000 USD.
• Generous performance-based bonus plans.
• Comprehensive health, dental, and vision coverage.
• Robust retirement contributions with immediate vesting.
• Quarterly wellness days and country-specific holidays plus birthday day off.
• Home office stipend and annual professional development budget.
• Paid parental leave and employee referral bonuses.
• Flexible, distributed work environment and collaborative culture.

Jobgether is a Talent Matching Platform that partners with companies worldwide to efficiently connect top talent with the right opportunities through AI-driven job matching.

When you apply, your profile goes through our AI-powered screening process, designed to identify top talent efficiently and fairly.
🔍 Our AI evaluates your CV and LinkedIn profile thoroughly, analyzing your skills, experience, and achievements.
📊 It compares your profile to the job’s core requirements and past success factors to determine your match score.
🎯 Based on this analysis, we automatically shortlist the three candidates who best match the role.
🧠 When necessary, our human team may conduct an additional manual review to ensure no strong profile is overlooked.

The process is transparent, skills-based, and free of bias — focusing solely on your fit for the role. Once the shortlist is complete, we share it directly with the company that owns the job opening. The final decision and next steps (such as interviews or assessments) are made by their internal hiring team.

Thank you for your interest!

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