Sr. Engineering Manager, Core Services - Slack
About the role
Salesforce is the #1 AI CRM, where humans with agents drive customer success together. The company values ambition, action, tech, trust, and innovation as a way of life. Slack’s Core Services engineering team maintains and builds performant services that include Edge Caches, Realtime Services, Enterprise Key Management, International Data Residency, and Image Uploads, Downloads, and Proxying. These systems process millions of events per second; edge caches serve approximately 35% of all Slack API traffic, and Realtime Services run 10 services (4 mission‑critical Tier 0) to deliver messages, presence, and real‑time events reliably at scale. The team works in Go and Java, with Slack’s API built on PHP/Hack, and focuses on high availability, reliability, and scalability so that millions of users never experience a hiccup.
Responsibilities
- Owning the technical direction and roadmap across the Core Services portfolio: Edge Caches, Realtime Services, Enterprise Key Management, International Data Residency, and Image Proxying and Uploads.
- Leading a multi-system migration of Flannel to Loom, our next-generation edge cache, while keeping the current systems running at full reliability for millions of users.
- Driving delivery and execution while maintaining reliability as a top priority, including sprint planning, product launches, incident follow-ups, operational sustainability analyses, and building