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B2B SaaS: how Fellow powers collaboration and hackathon culture
B2B SaaS: how Fellow powers collaboration and hackathon culture

Fellow is a B2B SaaS company. They are the market leader in enterprise meeting management software for clients such as Uber, Shopify, Webflow and Gong.

What is Fellow?

Fellow is a B2B SaaS company. They are the market leader in enterprise meeting management software for clients such as Uber, Shopify, Webflow and Gong. As they grew to meet the expectations their customers, they were looking for scalable infrastructure solutions for their software engineering team.

Screenshot of the website

We sat down with Samuel - serial entrepreneur and Chief Technology Officer at Fellow to hear more about his role at the company, his strategic approach to implementing, and how the change has made running company-wide hackathons easier.

Watch the full video testimonial below:

The Challenge:

As a fast-growing company, Fellow’s software developers did not want their work to be bottlenecked by staging environments. Initially, they had one staging environment and three sandbox environments. Getting access to one of the sandbox environments required a lot of work: developers had to spend time reserving it, keep it up to date, and schedule synchronous meetings with the QA team when it was time for them to take a look. The developer team had been asking about the possibility of doing per-pull request environments, and they even considered building this out themselves.

The Process:

The partnership between Fellow and began with implementing the CI (what is CI?) solution on some smaller repositories. This allowed Fellow to get familiar while working together with  to optimize CI pipelines. With an already established CI testing infrastructure, Fellow integrated into their testing process and ran both CI/CD solutions in parallel while the transition happened.

Collaborative Environment:

As a company, Fellow values innovation and collaboration. They continually invest in their people by providing the right resources and facilitating events such as hackathons.

During a hackathon, people often want to have live demos to show what they built. Sandbox environments get scarce, given that it’s all-hands-on-deck and everyone is building things they’d like to demo. allows Fellow’s employees to demo on their own branch and have isolated demo environments (also known as ephemeral environments).


Full list of challenges:

1. Fellow’s software development productivity was bottlenecked by having only three sandbox environments that required a great amount of effort to use and upkeep

2. Developers had to remember to keep their environments up to date, QA and product stakeholders sometimes had trouble finding the right environment

3. CTO wanted to scale and continue growing with the right infrastructure, to the point where developers considered building a homegrown staging solution

After using

  • CI provider(s): CircleCI and, with transition to
  • Tech stack: Kubernetes, Cypress, Docker Compose
  • Frontend: Typescript, React
  • Backend: Python, Django
  • Code reviews: test on staging before merging, and QA looks at it on a pull request basis as it gets merged

Full list of solutions:

1. With on-demand test environments, Fellow’s software developers can work on many things at once and not interfere with one another

2. QA and product stakeholders can now easily find the right preview environment by following a URL link

3. Thanks to the CTO's fast implementation, Fellow’s infrastructure is scalable and ready for future hires with 90% cost savings on building their own solution.

Why did they choose

From the perspective of the CTO:

“People on the dev team had been asking for the possibility of doing pull request environments… it was something that we considered building ourselves until we heard about, and it seemed to make sense to us”

- Samuel C., Chief Technology Officer

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Last Updated • May 04, 2021