Senior Software Engineer Backend/AI

Aircall, a leading customer communications platform trusted by 20,000+ companies worldwide, is seeking a Senior Backend & AI Engineer to join their dynamic team in Madrid. This role combines traditional backend engineering with cutting-edge AI development, focusing on designing and implementing business-critical AI features that enhance their voice platform. With a global presence across nine offices and a team of 600+, Aircall is revolutionizing business-customer communications.

The ideal candidate will be at the forefront of AI implementation, working with modern technologies like LLMs (GPT, Mistral, Llama) and frameworks such as Langchain and LlamaIndex. You'll be responsible for designing and developing scalable solutions, participating in requirements analysis, and ensuring the highest standards of security and performance. The role requires strong expertise in backend development with typed languages and AWS cloud infrastructure.

This position offers an exciting opportunity to work in a fast-paced, multicultural environment with 45+ nationalities, emphasizing continuous learning and innovation. Aircall values customer obsession, open collaboration, and delivering extraordinary outcomes. They offer competitive compensation, work-life balance, and significant growth opportunities as the company continues to expand globally.

The role combines technical leadership with mentoring responsibilities, making it perfect for experienced engineers who want to impact a rapidly growing company while working with cutting-edge AI technologies. If you're passionate about AI, backend development, and building solutions that transform how businesses communicate with their customers, this role at Aircall could be your next career milestone.