Full-Stack Senior Software Engineer, AI-Powered Sales Platform

Madrid Office
The Role

We are building a new team from the ground up to work on an ambitious new product in a fast‑moving, competitive market. This product will leverage Aircall’s core strengths in voice and AI to transform how sales teams operate, helping them work faster, smarter, and more effectively at scale. As one of the first engineers on this team, you’ll have significant ownership and influence over the technical direction and product development. We’re looking for engineers who are excited to build 0‑to‑1, thrive in ambiguity, and want to grow with the team, whether that means deepening technical expertise or eventually stepping into technical leadership and management roles as we scale.
Responsibilities

Collaborate closely with product managers, designers, and other stakeholders to translate requirements into technical solutions
Have key responsibilities within the design, architecture, and end‑to‑end delivery of features across the full stack




Build and maintain frontend interfaces with React and backend services with Node.js and TypeScript
Write clean scalable code and test and deploy applications and systems
Revise, update, refactor, and debug code
Participate in code reviews to ensure code quality and share knowledge
Be part of an engineering organization delivering high quality, secure, voice solutions to Aircall clients
Involved in product and platform performance optimization and live site monitoring
Participate in an on‑call rotation to respond to critical system issues and ensure continuous system reliability
Keep security at the forefront of everything that you do
What We’re Looking For

At least 3 years of professional experience in full‑stack development
Experience with AWS services and cloud‑based architectures
Deep understanding of software development practices, scalable system architecture, security best practices and cloud‑based platforms
Exceptional analytical and problem‑s

📌 Full-Stack Senior Software Engineer, AI-Powered Sales Platform New Madrid Office
🏢 Aircall
📍 Madrid