About Salesforce Salesforce is the #1 AI CRM, where humans with agents drive customer success together. Here, ambition meets action. Tech meets trust. And innovation isn’t a buzzword — it’s a way of life. The world of work as we know it is changing and we're looking for Trailblazers who are passionate about bettering business and the world through AI, driving innovation, and keeping Salesforce's core values at the heart of it all. Ready to level-up your career at the company leading workforce transformation in the agentic era? You’re in the right place! Agentforce is the future of AI, and you are the future of Salesforce. Slack enables people all over the world to communicate and collaborate together. Teams of all scales — from the world’s largest public companies to the smallest of startups — use Slack to get work done, so we take performance and reliability very seriously. A taste of our scale: 5 billion+ messages are sent per week, half of those outside the United States Every day we see over 10M+ daily active users, 30+ billion web requests, and 200+ billion database queries. For millions of people, Slack is the primary communication tool they use at work all day long. They expect it to be exceptionally reliable and fast, all the time. Core Infrastructure at Slack We operate at tremendous scale with systems that process millions of events per second. Teams in our group maintain and build the lower levels of our stack, including: Edge services Data Stores and Caches Real-time messaging Asynchronous background job processing We know we’ve done our job correctly when none of our users think about us. We don’t typically ship new user-facing features, but rather ensure our systems are incredibly performant, highly available, reliable, and scalable. In other words, Slack just works seamlessly. Slack's API and web backend is built onPHP/Hack, our backend services are written in Java and Go, and we use Vitess as our storage engine. Our architecture is constantly evolving to handle millions more users. You can read about how we scaled our datastores with Vitess, how we respond to incidents, and much more on our blog. If you were to join Slack, here the types of things you would do over the course of a typical week:
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Job Type
Full-time
Career Level
Mid Level
Education Level
No Education Listed
Number of Employees
5,001-10,000 employees