Minimum qualifications: Bachelor's degree or equivalent practical experience. 8 years of experience programming in C++, Java, Python, Kotlin or Go. 5 years of experience testing, and launching software products. 3 years of experience with software design and architecture. Experience integrating generative AI tools or LLM interfaces into workflows. Preferred qualifications: Master’s degree or PhD in Computer Science, Engineering, or a related technical field. Experience with operating system internals (Linux/macOS) and file system design. Experience integrating agents and AI in their team's products or processes to help drive AI adoption in the Source Client team. Expertise in C++ or Rust in a large-scale production environment. Familiarity with version control systems (VCS) like Git, Mercurial, or jj beyond basic usage. Track record of significant contributions to high-profile open-source projects. About the job Google's software engineers develop the next-generation technologies that change how billions of users connect, explore, and interact with information and one another. Our products need to handle information at massive scale, and extend well beyond web search. We're looking for engineers who bring fresh ideas from all areas, including information retrieval, distributed computing, large-scale system design, networking and data storage, security, artificial intelligence, natural language processing, UI design and mobile; the list goes on and is growing every day. As a software engineer, you will work on a specific project critical to Google’s needs with opportunities to switch teams and projects as you and our fast-paced business grow and evolve. We need our engineers to be versatile, display leadership qualities and be enthusiastic to take on new problems across the full-stack as we continue to push technology forward. The Core team builds the technical foundation behind Google’s flagship products. We are owners and advocates for the underlying design elements, developer platforms, product components, and infrastructure at Google. These are the essential building blocks for excellent, safe, and coherent experiences for our users and drive the pace of innovation for every developer. We look across Google’s products to build central solutions, break down technical barriers and strengthen existing systems. As the Core team, we have a mandate and a unique opportunity to impact important technical decisions across the company. Individual pay is determined by factors including job-related skills, experience, and relevant education or training. US: $207000 - $301000 (USD) + 20% bonus target + equity + benefits Learn more about benefits at Google. Responsibilities Design and implement core components for next-generation version control systems, including the open-source jj (Jujutsu) project, focusing on performance and scalability. Partner with cross-functional product teams—such as those building code review platforms, code search, and AI-enabled developer tools—to deliver integrated workflows that unlock new frontiers in engineering productivity. Facilitate alignment and clarity across teams on goals, outcomes, and timelines. Influence and coach a distributed team of engineers. Grow and sustain healthy open-source communities around source control tools like jj and Git, and collaborate with the broader industry.