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Mozilla, headquartered in Rincon Hill, San Francisco, CA, is a prominent player in the internet software industry, best known for its flagship product, Firefox. With over 1,000 employees, Mozilla focuses on open-source software and privacy-forward solutions, including Mozilla VPN. The company has ra...
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Mozilla champions an open-source culture, prioritizing user privacy and choice. The company fosters a mission-driven environment, focusing on impactfu...

Mozilla • Remote US
Mozilla is seeking a Senior Software Engineer for their OS Integration team to enhance Firefox on Windows. You'll work on improving the quality of Firefox through various platform-specific features. This role requires expertise in Windows development.
You have significant experience in software engineering, particularly with a focus on Windows platforms. Your background includes developing and integrating software components that enhance user experience and system performance. You understand the intricacies of operating systems and have a passion for improving software quality. You thrive in a collaborative environment and are comfortable working with distributed teams. You are committed to open-source principles and have a strong desire to contribute to projects that make the internet better for everyone.
Experience with Gecko-based products or similar technologies is a plus. Familiarity with cross-platform development and integration challenges will help you excel in this role. You are proactive in identifying areas for improvement and have a track record of implementing effective solutions. A background in security practices related to software development will be beneficial.
As a Senior Software Engineer on the OS Integration team, you will focus on enhancing the Firefox browser's performance and compatibility with Windows. Your responsibilities will include developing fixes and improvements for various components, such as native crash reporting and OS abstraction layers. You will collaborate with other engineers to ensure seamless integration of Firefox with the Windows operating system, addressing platform-specific features and challenges. You will also participate in code reviews and contribute to the overall architecture of the software, ensuring high standards of quality and performance.
You will engage in troubleshooting and debugging complex issues that arise in the integration process, working closely with QA teams to validate fixes and enhancements. Your role will involve staying updated with the latest developments in Windows and related technologies, allowing you to propose innovative solutions that enhance user experience. You will also have the opportunity to mentor junior engineers, sharing your expertise and fostering a culture of learning within the team.
Mozilla offers a competitive salary range for this position, reflecting the importance of your role in shaping the future of Firefox. You will be part of a mission-driven organization that values diversity and inclusion, providing a supportive environment for all employees. The company promotes a healthy work-life balance and offers flexible working arrangements, allowing you to work remotely while contributing to impactful projects. You will have access to professional development opportunities and the chance to work with a talented team dedicated to making the internet a better place for everyone.
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