Aircall is a unicorn, AI-powered customer communications platform used by 22,000+ companies worldwide to drive revenue, resolve issues faster, and scale customer-facing teams. We’re redefining customer communications by bringing voice, SMS, WhatsApp, and AI together into one seamless workspace. Aircall is headquartered in Paris, our European HQ, with a strong North American presence anchored in Seattle, our North American HQ, and teams across Madrid, London, Berlin, San Francisco, New York City, Sydney, and Mexico City. We’ve built a product customers love and a business that’s scaling quickly, backed by world-class investors and driven by rapid AI innovation across multiple product lines.
At Aircall, you’ll join a company in motion. How we work at Aircall We’re customer-obsessed, data-driven, and focused on delivering meaningful outcomes. We are looking for an engaged and passionateSenior Software Engineer to join our growing Communication Platform department and be part of the Number Management team.
You will be responsible for the design, development, deployment, and operation of business-critical features that add customer value.
Quality, excellence, and agility drive our delivery processes and you will help us level these up.
Using Typescript and Ruby back-end stacks, appropriate for each requirement, but always hosted on AWS, we build added value and resilient services on top of voice and AI capabilities,



and fully integrated with our customers' business critical tools.
Participate in requirements analysis to help with providing the right technical and business solutions for our customers
Write clean scalable code and test and deploy applications and systems
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
You have at least 5+ years of experience in backend development with preferably a typed language (Typescript/Node.js, Java, C#) with a focus on delivering for scalability, availability, security and performance
You have at least 2+ years of experience working on frontend applications, preferably with React, but experience with Angular is also valued.
You have experience with serverless architectures, microservices or distributed systems.
You have worked extensively with AWS in a production environment and understand how to design for, deploy on and get the best out of, the environment and services provided by Amazon
You can talk easily and spontaneously about most of the offerings on AWS, when to use them, and how, and can explain to junior engineers
45+ Nationalities: cosmopolite & multi-cultural mindset
We’re committed to ensuring that everyone not only has a seat at the table but is valued and respected at it by providing equal opportunities to develop and thrive.

📌 Financial Engineer (Python) (Madrid)
🏢 Aircall
📍 Madrid