What language does Chainlink use?

Could you please elaborate on the programming language utilized by Chainlink? I'm curious to understand the technical foundation of this cryptocurrency project. It would be helpful to know if it's built on a widely-used language or something more specialized. Also, I'm interested in how the choice of language affects the overall functionality and scalability of Chainlink's platform. Could you provide insights into this aspect as well? Thank you for your assistance in clarifying this matter.