CircleCi

GitLab

about.gitlab.com

From project planning and source code management to CI/CD and monitoring, GitLab is a complete DevOps platform, delivered as a single application. GitLab is up and coming, and especially great for its built-in support for testing and CI/CD.

RStudio

rstudio.com

RStudio provides free and open source tools for R and enterprise-ready professional software for data science teams to develop and share their work at scale.

Jira

atlassian.com

Jira is used for bug tracking, issue tracking, and project management.

Calendly

calendly.com

Calendly is a scheduling software, which aims to save time, accelerate sales, and improve service quality. It eliminates the old-school way of using email and phone tags for scheduling appointments, calls, interviews, demos, and more.