@Jeffrey Sherman Jeffrey Sherman drives scaling and performance at ActiveCampaign through his role as a Staff Engineer. In addition to hands-on coding, he teaches problem decomposition, iterative delivery, and his philosophy of never doing greenfield rewrites. If you hang out in the community Slack or follow this newsletter closely, you may be familiar with his blog https://shermanonsoftware.com or his podcast https://www.neverrewrite.com/podcast. One of his earliest conversations in the community was around scalability - especially how you ensure production upgrades won’t cause issues to your biggest customers. Jeffrey’s LinkedIn tagline showcases his customer-centric view of performance engineering: “I help SaaS Companies keep their biggest clients from churning.”