Senior iOS Tooling Engineer

At Lyft, our purpose is to serve and connect. We aim to achieve this by cultivating a work environment where all team members belong and have the opportunity to thrive. Join our Mobile Tooling team, where we build foundational systems for Lyft's mobile engineers, enabling them to create stable, scalable, polished, and efficient mobile apps. We're passionate about developer experience, providing flexible tooling for rapid innovation. Are you an enthusiastic engineer with a passion for crafting iOS productivity tools and robust infrastructure? Elevate your skills with our Mobile Tooling team, playing a crucial role in scaling development practices and iteration speed for hundreds of mobile engineers. We support apps with millions of lines of code, hundreds of modules, and industry-leading mobile build systems, keeping builds under 30 seconds locally and 15 minutes in CI. We're proud of our apps, used by millions, reflected in excellent development practices and thoughtful code architecture designed for rapid releases. We focus on delightful user experiences, balancing our roadmap with a mix of developing new tools and infrastructure with refining existing ones based on direct feedback from our internal customers—other mobile engineers. Watch some of our presentations: https://www.youtube.com/watch?v=-u40WqvdRsg https://www.youtube.com/channel/UC18tEI7YdUtg4bL9yxv1Xjg Open source contributions: https://mobilenativefoundation.org/ https://github.com/lyft/Hammer Responsibilities: Work within our Mobile Tooling team and across the Lyft Mobile development community to create and maintain our mobile build and release infrastructure, building great tools for hundreds of mobile engineers to build, test, and release apps quickly, making their day-to-day joyful and productive. Guide your own and the team’s projects from start to finish, ensuring cross-functional alignment and buy-in. Exhibit strong project management capabilities, overcoming obstacles, and gaining necessary stakeholder support. Inform the Lyft Mobile community of any changes to the systems you oversee. Analyze systems and processes to identify areas for improvement and automation, including planning projects, assisting in prioritization, driving accurate estimations, and designing and leading architectural reviews to ensure performance, security, privacy, and maintainability. Dive into and contribute to the source code of existing tools and the open-source technologies we build on, keeping up-to-date with iOS and industry developments. Explore, prototype, and implement prospective tools for scaling our infrastructure such as diving deep into Bazel remote execution or investigating new platform capabilities. Build out mobile specific AI agent workflows to enhance developer productivity, improve migration efficiency, and drive alignment across the codebase. Maintain and update Xcode, iOS versions, and third-party libraries dependencies. Write high-quality, well-tested, readable, and maintainable code. Identify, triage, debug, and resolve issues and bugs across various applications and tools. Share your knowledge by giving brown bags, tech talks, and promoting. appropriate tech and engineering best practices, and participate in code reviews to provide feedback to ensure best practices. Mentor junior engineers, support onboarding, participate in hiring processes or contribute to other engineering community investments. Experience: Minimum 5+ years of software engineering industry experience Experience supporting large iOS or MacOS builds and Bonus: Bazel Experience in building command-line tools using python or bash Experience maintaining a high performance CI pipeline Strong knowledge of Swift and Bonus: SwiftUI Deep understanding of native mobile testing practices (unit, snapshot, and UI) Worked on and shipped large scale iOS applications or working on teams responsible for maintaining and operating infrastructure at a large-scale Great product sense; you care about usabili