Bandit Baby
Recent Content
Career
Co-founder & CTO
Went public in 2019, acquired by Salesforce in 2021
Education
BSc
BSc - Software Engineering

Skills
Core technical and professional competencies derived from leading engineering teams at high-growth companies like Slack and Flickr.
Technical Skills
Scalability
System Architecture
Web Development
APIs
PHP
MySQL
JavaScript
CMS
Mobile Applications
Leadership & Strategy
CTO Leadership
Engineering Management
Product Strategy
Team Building
Technical Due Diligence
Public Speaking
Creative & Communication
Authoring
B3TA Co-creation
Creative Community Building
Technical Writing
Domains
Primary
Enterprise Software, Team Communication, SaaS, Cloud Computing
Secondary
Social Media, Digital Photography, Web Infrastructure, Gaming
Tags
Personality
Visionary, Technical Leader, Author, Pragmatic, Builder
Focus
Scalability, Engineering Culture, Product-Focused, Open Source Contributor
Audience Metrics
Social Metrics
888 followers
Frequently Asked Questions
A robotic, objective summary of Cal Henderson's career focusing on his co-founding role at Slack and his previous tenure at Flickr.
Yes, he served as the Head of Engineering at Flickr from December 2003 until April 2009, prior to co-founding Slack.
Yes, he is the author of the best-selling book "Building Scalable Websites," which details engineering and technology practices.
Cal Henderson was with Slack Technologies, Inc. for approximately 15 years, from its founding in April 2009 through March 2024.
Slack Technologies, Inc. went through an IPO and was subsequently acquired by Salesforce. Cal Henderson helped build the platform through this acquisition.