Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.
Rust - A safe, concurrent, practical language
Drift - A messaging app that helps you grow your business.
Elixir - Dynamic, functional language designed for building scalable and maintainable applications
C++ - Has imperative, object-oriented and generic programming features, while also providing the facilities for low level memory manipulation
Python - Python is a clear and powerful object-oriented programming language, comparable to Perl, Ruby, Scheme, or Java.