The User Data SRE team at Google is seeking a Software Engineer to work on foundational systems (Kansas and Contribservice) used for building user insights, profiling, personalization, and contributions. This role requires collaboration with development partners to improve service reliability, scalability, and efficiency, and to ensure new services meet production best practices. Responsibilities include identifying and solving service-level problems, designing and implementing solutions, guiding other engineers, shaping team culture, contributing to team OKRs (including automation), and participating in on-call rotations. The successful candidate will have experience with data structures/algorithms, software development (preferably in C, C++, Java, Python, or Go), and a strong understanding of networking, operating systems, and storage. Experience with global scale distributed systems is highly valued.