Aircall is a unicorn AI-powered communications platform transforming how teams win with customers. We bring voice, SMS, WhatsApp, and 250+ integrations together on one seamless workspace—so every customer conversation drives revenue, resolves issues faster, and builds trust. As a Senior Full-Stack Engineer on our Growth team, you will focus on Onboarding & Trial optimization. You will design, build, and iterate on the key product flows that drive user activation, feature adoption, and trial conversions. Unlike traditional full-stack roles that lean heavily toward backend systems, this position requires deep Frontend expertise alongside solid Backend capabilities. You will build user-facing product experiences, run rapid experiments, and shape the initial user journey in Aircall. Quality, excellence, and agility drive our delivery processes and you will help us level these up. Using React, NodeJS and Typescript, always hosted on AWS, we build added value and resilient experiences on top of voice and fully integrate with our customers' business critical tools (CRM, Helpdesk, E-Commerce, …). Drive Acquisition & Onboarding: design, implement, and optimize activation funnels, trial experiences, and onboarding flows Rapid Experimentation: build, ship, and evaluate A/B tests and product feature variations using product analytics to measure impact End-to-End Ownership: ship high-quality code across the entire stack, from seamless, responsive frontend interfaces to scalable backend logic Cross-Functional Collaboration: partner closely with Product Managers, Designers,



and Data Analysts to convert user insights into frictionless product experiences Create, design, develop, test, and monitor your code in production autonomously and reliably You have demonstrated professional experience across both frontend and backend development, with true full-stack expertise. You have strong frontend mastery: expertise in building complex, modern UI components, reactive interfaces, and web applications. This role involves substantial frontend work. You have a strong background in the modern JS/TS ecosystem: Node.js, TypeScript, JavaScript, modern frontend frameworks (e.g., React), and API integration. You have a product & data mindset: familiarity with product analytics tools, conversion funnels, and data-informed product decision-making. Candidates whose primary background is strictly Ruby, Python, or purely backend frameworks will not fit this specific need. Nice to have: prior experience building and scaling software at product-led SaaS companies (as opposed to client consulting or agency backgrounds). You value code simplicity, quality, performance and maintainability. Typescript/[Node.js](), React, REST API/GraphQL APIs, AWS/Serverless or EKS, PostgreSQL, DynamoDB, Redis 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. If you would like more information about how your data is processed, please contact us.

📌 Remote Home Based Senior Software Engineer (España)
🏢 Aircall
📍 España