Charles Humble talks to Jennifer Mace, aka as Macey. She gives us her definitions of "site reliability engineer" and “toil”, discusses how google recruits SREs, explores how to manage risk and speed, and the pros and cons of having a centralised SRE function and why that model, vs. the “You build it, you run it” model preferred by Netflix, works well at Google. She also offers advice for junior SREs and tells us what it is like when the pager goes off.