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Cal Henderson

16 Podcast Episodes

Latest 1 Oct 2022 | Updated Daily

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The twists and turns on the path to success with Cal Henderson

What Led You Here with Steve Vamos

Steve Vamos is joined by Cal Henderson, Co-founder and Chief Technology Officer at Slack - the fastest startup to reach  “unicorn” status, achieving a billion-dollar valuation in just over a year. This is a fascinating discussion about how staying true to your purpose can lead you in many different directions on the path to success. Cal shares details of his journey and the many lessons he has learnt along the way.See omnystudio.com/listener for privacy information.


13 Jul 2022

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#54 - Cal Henderson // CTO @ Slack

alphalist.CTO Podcast - For CTOs and Technical Leaders

How to Build Sticky ProductsCal Henderson, CTO of Slack, creator of Flickr, and author of ‘Building Scalable Websites’ (O'Reilly Media, 2006) shares how Slack was built from both a tech and product perspective and what you should be doing to reclaim your focus time ⏱️. Listen to find out: How Slack does focus time What tech stack👩‍💻 powers Slack across platforms Why Twitter 🐦 has allowed for better products to be created why you need to disconnect to produce Listen here


23 Jun 2022

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The Feedback Loop – Part 2 of a conversation with Cal Henderson, Co-Founder of Slack

Orbit - An Hg Podcast

An incredibly reactive and evolutionary software, Slack is constantly learning from its users and challenging its creators’ view of how it is used. Changes between different types of customer layered over changes in the wider world means continual vigilance and a continually refreshed approach.This episode sees Cal Henderson, Co-Founder and CTO of Slack, talk to Hg’s Jason Richards about how to judge the success of innovation, the explosion of feedback enabled by Twitter and how playfulness is not antithetical to work.This podcast was recorded as part of Hg’s Technology Leaders Summit 2021. Listen to Part 1 now in series 3 of Orbit.


3 Mar 2022

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The Death of Email? – Part 1 of a conversation with Cal Henderson, Co-Founder of Slack

Orbit - An Hg Podcast

Initially developed as a direct digitisation of the inter-departmental memo, email has been long embedded into our work lives. The emergence of a new generation of workplace communication tools aim to get closer to how human beings actually interact and the exceptional growth of these solutions brings a host of challenges for their creators.This episode sees Cal Henderson, Co-Founder and CTO of Slack, talk to Hg’s Jason Richards about the unlikely birth story of the app, the value of knowing how your customers actually use your product, the gear shifts required in both your code and your organisation as you grow quickly and the support that comes from being part of a tech community (in this case the Bay Area).This podcast was recorded as part of Hg’s Technology Leaders Summit 2021. Listen to Part 2 now in series 3 of Orbit.


3 Mar 2022

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Making Slack the Center of Work with CTO Cal Henderson

IT Visionaries

Many of us know that familiar chime. It’s the sound you hear when someone messages you inside a channel on Slack, the business world’s leading communications platform. It’s a sound that has become synonymous with the company, which, as a matter of fact was never supposed to be the platform it has become.  Cal Henderson, the co-founder and CTO of Slack, will tell you that the platform that has helped transform the way distributed workforces operate, was actually originally designed as a simple tool his team used to work on a game they hoped to launch. And when that video game failed to take-off and the team was looking for a way to salvage all of the work they did, they saw a light at the end of the tunnel.“We knew we wanted to keep working together and we realized that the way we had been collaborating and working together while working on this game, the set of tools that we'd built, we realized we always wanted to keep working together in that way. We wanted to use a set of tools like that. And if we did, maybe other small development companies like us would, and so we turned that into the product and that became Slack.”On this episode of IT Visionaries, Cal discusses Slack’s journey. He dives into its initial struggle as a video game developer, and details the pivot they made to turn it into one of the premiere platforms for distributed workforces used around the world. Main TakeawaysPivot! Pivot!: During its infancy, the Slack team was focused on developing a video game. But once they realized the product-market fit wasn’t there, they quickly realized that the tools they were using to communicate were great for collaborating, which led to a complete pivot in the business model. Tweet Tweet: When you’re developing a platform that is built around the user experience, one of the easiest and fastest ways to build a feedback loop is through social media. When Slack wants to get an idea of what issues customers are having in real-time, they look at what users are saying to them on social media. Then, once they have an idea of those pain points, they work with them to rectify those issues.The Office: While more and more employees begin working from home, distributed workforces are only growing. However, that doesn’t mean the physical office is going away. Teams will still use office spaces for collaborating and ideating. The use of platforms such as Slack, serve as tools to amplify those creative sessions.---IT Visionaries is brought to you by the Salesforce Platform - the #1 cloud platform for digital transformation of every experience. Build connected experiences, empower every employee, and deliver continuous innovation - with the customer at the center of everything you do. Learn more at salesforce.com/platform


19 Nov 2020

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S01E10: Slack Co-Founder & CTO Cal Henderson & Freshworks CEO Girish Mathrubootham discuss leadership, failure, side projects and success

The Orbit Shift Podcast

Twenty years ago, Cal Henderson was working in London while Stewart Butterfield was making a game called Game Neverending. Henderson, a big fan of the game, broke into the email server to join the internal mailing list of Butterfield’s 4 person company. Eventually, Cal convinced Butterfield to hire him.  The game was not going anywhere, so they started focusing on a side project which eventually became Flickr and eventually sold to Yahoo in 2005. The two founders went back to building another gaming company called Glitch. That didn’t do well either. Another side project, that helped Glitch manage their remote teams now became the core product. They called it Slack. And the rest is history.  Today Slack has a market cap of almost $15 billion. In the quarter ended April 2020, it pulled in over $200 million in revenues, growing at 49% compared to the year-ago quarter, with a gross margin of 87.3% and a stellar net retention rate of 132%.This episode of The Orbit Shift Podcast brings you a fireside chat between Cal Henderson and Girish Mathrubootham. The two talked about 🚀Achieving Product-market fit🚀Convincing others to use Slack🚀Growing beyond the original product-market fit🚀The #2 reason why startups fail🚀Success comes from failure🚀Giving away your lego blocks 🚀Go from sprinting to running a marathon🚀Stress and the role of leaders 🚀Succeeding in the post-Covid worldThis episode was originally recorded as part of the AgainstAllOdds startup summit conducted by Freshworks for Startups. Get $10,000 free credits to use Freshworks products by joining the Freshworks for Startups program. Click here to check eligibility. About the GuestCal Henderson is the co-founder and CTO of Slack. Previously, Cal built and led the engineering teams at Flickr, until its acquisition by Yahoo. An experienced technology leader and a popular speaker on engineering scalability, he authored the best-selling O’Reilly Media book Building Scalable Websites. Cal was also a pioneer in the use of web APIs and created the basis for OAuth and oEmbed, now used by YouTube, Twitter and many others. He has a Bachelor of Computer Science and has received an Honorary Doctorate from Birmingham City University. He now resides in San Francisco.Sign up for regular updates from The Orbit Shift Podcast.The Orbit Shift Podcast is Powered by Freshworks Inc. a global SaaS company headquartered in San Mateo, California. Host and Producer - Jayadevan PKAssistant Producer - Shashwath JAudio Engineer - Rajesh Subramanian


10 Nov 2020

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How to Be a Multiplier, with Cal Henderson of Slack

Inc. Founders Project with Alexa von Tobel

The story behind Slack—the communication platform used by millions around the globe—is almost a happy accident. Cal Henderson and his co-founders had been toiling away on a gaming startup, Glitch, when they realized the product of most value within their organization were the tools they'd hacked together to collaborate across locations. That collaboration tool spun off into Slack, which IPOed in 2019 and now has a market cap of over $16 billion. Slack has become more vital than ever in 2020, standing in as our "digital office." Cal shares how to scale an engineering organization, why the role of the office is forever changed, and how to master personal time management.


28 Oct 2020

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In conversation with Cal Henderson

The Next Stage Podcast

Overnight, businesses around the world have found themselves faced with a new way of working. Organizations are trying to adjust to this unfamiliar world of remote work and find alternative ways to get things done. In this week's episode, Cal Henderson, co-founder and CTO at Slack, will discuss key aspects of this reformed style of work and how we can emerge stronger – with better methods of collaboration – once it's safe to return to the office. He’ll also discuss the implications of this changing landscape on Slack’s business."The best technology conference on the planet". Join us in Lisbon this November.


13 Oct 2020

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Ep118 – Cal Henderson (Co-founder & CTO – Slack) on pivots, product & the future

The Startup Playbook Podcast

The Startup PlaybookConnecting you to the best entrepreneurs, investors and resources from around the world Twitter Facebook YouTube Instagram Ep118 – Cal Henderson (Co-founder & CTO – Slack) on pivots, product & the future July 2, 2020 rohitbhargava Podcast My guest for Episode 118 of The Startup Playbook Podcast was the Co-founder & CTO of […] The post Ep118 – Cal Henderson (Co-founder & CTO – Slack) on pivots, product & the future appeared first on Startup Playbook.

1hr 2mins

2 Jul 2020

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Slack: How to Work Remotely and Stay Productive with Cal Henderson

Secret Leaders

Today’s guest is someone we’ve had on the show before, in fact, he kicked off season 4 for us. So don’t be confused and think we’ve got our seasons muddled up. We thought we’d invite Cal Henderson back onto the podcast because his company, Slack, is one of only a few companies that aren’t in a tailspin currently. They’re facing an entirely different dilemma - they’re scrambling to keep up with demand, what with the majority of the world now in self-isolation and having to work from home (WFH). “One of the challenges of remote work for folks has always been the boundary between being at work and not being at work. And that's, you know, that's one thing when it's individuals, and [another] when it’s an entire company in one go.”If you’re wanting to hear the story of how Slack started, take a listen here, because we don’t rehash it in this episode. Instead we talk with Cal about Slack’s sudden increase in user numbers, how they’ve responded to the crisis as a global company (they have employees and offices around the world), as well as what decisions they are making with regards the platform and its new features, as well as offering advice to listeners about productivity and how to work productively, when WFH. So if you’re taking five minutes out from juggling your kids and your day job, this episode might be the very tonic you need to get you back into the WFH headspace. “In many ways as a company, we were built for this kind of thing. Like, we didn't start Slack because we thought there'd be some kind of global pandemic that forced people to work from home.”We chat about: Slacks features that enable greater productivity Tracking the impact of the virus around the world How Slack enables distributed work Looking after your mental health when isolated The importance of great internal communications when WFH Links: https://www.yourheights.com/ @stewart Want to receive our podcast on a weekly basis? Subscribe to our newsletter!


21 Apr 2020