Senior Software Engineer - Engineering Workflow and CI

## About the Role As a Senior Software Engineer specializing in Engineering Workflow and CI at Mozilla, you will play a pivotal role in optimizing the development workflow of Firefox, one of the world's leading web browsers. Your day-to-day work will involve collaborating with a geographically distributed team of developers to streamline testing, debugging, and integration processes. This not only enhances the efficiency of the development process but also directly impacts the quality and performance of Firefox, thereby influencing the browsing experience of millions of users worldwide.

The role is deeply embedded within Mozilla's engineering team, focusing on Continuous Integration (CI) and Continuous Deployment (CD) to ensure that every code change is automatically built, tested, and deployed to production. This requires a strong understanding of CI/CD systems, such as GitHub Actions or CircleCI, and the ability to mentor junior team members in best practices.

Reporting to a senior engineering manager, you will be part of a larger organizational structure that values open communication, collaboration, and the sharing of knowledge. Your contributions will not only impact the Firefox development workflow but also contribute to the broader mission of Mozilla to keep the internet open and accessible to all.

## What You Will Do - Improve Firefox development workflows to reduce time spent on testing and debugging, and to increase the automation and integration of workflows.

• Collaborate with a geographically distributed development team to identify areas for workflow improvement and implement solutions.
• Mentor other team members and be open to mentorship from more senior team members to foster a culture of continuous learning and improvement.
• Provide code reviews and technical direction to ensure high-quality implementations that align with Mozilla's standards and best practices.
• Analyze data and trends in Firefox development workflows, creating dashboards and reports to inform decision-making and drive future improvements.
• Work closely with other teams to provide technical expertise and ensure that workflow improvements align with broader organizational goals.
• Develop and maintain tools and services that support the development workflow, utilizing Python and JavaScript among other technologies.
• Participate in the planning and implementation of new features and projects, ensuring that workflow enhancements are considered from the outset.
• Stay up-to-date with the latest developments in CI/CD, testing, and software development methodologies, applying this knowledge to continuously improve Mozilla's engineering workflows.
• Collaborate on the development of technical documentation to ensure that knowledge is shared effectively across the team and the wider Mozilla community.

• Front-end development experience with JavaScript, including proficiency in modern JavaScript frameworks and libraries.
• Experience with Cloud Services such as GCP or AWS, and familiarity with RESTful APIs.
• Solid understanding of databases and SQL, with the ability to design and optimize database schemas for high performance.
• Experience with CI/CD systems, including GitHub Actions or CircleCI, and test harnesses to ensure automated testing and deployment.
• Comfort working in a cross-platform environment, with familiarity with at least two of the following: Windows, Linux, Mac, Android.
• A passion for enhancing developer productivity through workflow improvements and automation.
• Commitment to Mozilla's values, including welcoming differences, being relationship-minded, and practicing responsible participation.
• Strong communication and interpersonal skills, with the ability to work effectively in a distributed team environment.

• Familiarity with agile development methodologies and version control systems like Git.
• Participation in open-source projects, demonstrating a commitment to community-driven development and collaboration.
• Experience with data analysis and visualization tools, which can be applied to understanding workflow trends and optimizing development processes.

• Opportunity to work on a product used by millions of people worldwide, with a direct impact on the future of the internet.
• Collaborative and dynamic work environment that encourages innovation, creativity, and professional growth.
• Flexible working hours and remote work options, allowing for a better work-life balance and the opportunity to work from anywhere.
• Access to the latest technologies and tools, ensuring that you stay at the forefront of software development.
• Participation in Mozilla's open-source community, with opportunities for professional development and networking.
• Comprehensive health insurance, retirement savings plans, and other benefits that support your well-being and financial security.

• Ensure your resume and cover letter are tailored to highlight your experience with Python, JavaScript, and CI/CD systems.
• Prepare to discuss specific examples of how you've improved development workflows in previous roles.
• Showcase your passion for open-source software and community-driven development.
• Research Mozilla's current projects and initiatives to demonstrate your understanding of the company's mission and values.
• Be ready to complete coding challenges or technical assessments as part of the interview process.
• Consider creating a personal project or contributing to an open-source repository to demonstrate your skills in action.
• Don't hesitate to ask about the team's dynamics, the company culture, and opportunities for growth and development during the interview.