Senior Full-Stack Engineer: Growth & Onboarding

Aircall is looking for a Senior Full-Stack Engineer to join the Growth team in Madrid. You will design, build, and iterate on onboarding flows and trial experiences, balancing frontend excellence with solid backend capabilities. You will ship end-to-end features using React, Node.js, and TS, hosted on AWS, integrating with CRM, Helpdesk, and other tools. You will lead rapid experiments, evaluate results with product analytics, and collaborate with PMs, designers, and data analysts to convert J-…