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

Team: 10001 - Communications Platform

Location: Madrid Office

Commitment: Permanent Full Time Employee

Workplace Type: hybrid

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 at Aircall

-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
-Involvement 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
-Security is at the forefront of your mind in 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-solving skills, with the ability to effectively troubleshoot complex issues
-Excellent communication and collaboration skills; you thrive working closely with product managers, designers, and cross-functional teams
-Comfortable working in a fast-paced, dynamic environment with evolving priorities
-Fluency in English is required; Spanish is a plus.