Common Lisp - The modern, multi-paradigm, high-performance, compiled, ANSI-standardized descendant of the long-running family of Lisp programming languages
Jenkins - Jenkins is an open-source continuous integration server with 300+ plugins to support all kinds of software development
C (programming language) - C is a general-purpose computer programming language.
CircleCI - CircleCI gives web developers powerful Continuous Integration and Deployment with easy setup and maintenance.
Haskell - An advanced purely-functional programming language
Travis CI - Focus on writing code. Let Travis CI take care of running your tests and deploying your apps.