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Senior Software Engineer

Aircall Inc.

Job Overview

Location

Madrid Office

Job Type

Full-time

Full Job Description

📋 Description

• Design, develop, deploy, and operate business-critical features that deliver measurable customer value using Node.js and TypeScript on AWS infrastructure.
• Own end-to-end delivery of features from concept to production, ensuring operational excellence, observability, and adherence to best practices across the engineering organization.
• Build resilient, scalable services that integrate with customers’ business-critical tools including CRM, Helpdesk, and E-Commerce platforms, enhancing Aircall’s AI-powered customer communications platform.
• Evangelize and mentor engineering teams on quality standards, code excellence, and agile delivery practices to elevate the overall engineering culture.
• Contribute to the evolution of Aircall’s AI Voice Agent, AI Assist, and AI Assist Pro by developing backend systems that automate routine calls, streamline post-call workflows, and provide real-time guidance.
• Collaborate with cross-functional teams to translate product requirements into technical solutions that align with Aircall’s mission of helping teams work smarter, not harder.
• Drive metrics-driven development by monitoring system performance, identifying bottlenecks, and implementing improvements that enhance reliability and user experience.
• Participate in code reviews, architecture discussions, and incident response to ensure high-quality, secure, and maintainable codebases.
• Work within a fast-moving, execution-focused environment where decisions are made quickly and impact is visible across global customer teams.
• Support the growth of Aircall’s engineering department by contributing to hiring, onboarding, and knowledge-sharing initiatives within the Madrid office and across global engineering teams.
• Maintain a customer-obsessed mindset, prioritizing features and improvements that directly enhance customer outcomes such as higher revenue, faster issue resolution, and scalable customer-facing operations.
• Leverage data-driven approaches to inform technical decisions, validate assumptions, and measure the success of deployed features against business and user KPIs.
• Ensure all systems are designed with scalability in mind to support Aircall’s rapid growth and global user base of 22,000+ companies.
• Stay current with emerging technologies and industry trends in cloud-native development, AI integration, and real-time communications to continuously improve Aircall’s technical foundation.

🎯 Requirements

• Proven experience as a Senior Software Engineer with deep expertise in Node.js and TypeScript
• Strong background in building and operating scalable backend services on AWS
• Demonstrated ability to mentor engineers and promote engineering best practices across teams

🏖️ Benefits

• Opportunity to work on AI-powered customer communications technology used by 22,000+ companies worldwide
• Collaborative, fast-moving environment focused on ownership, continuous learning, and impactful results
• Access to cutting-edge AI tools including AI Voice Agent, AI Assist, and AI Assist Pro

Skills & Technologies

TypeScript

Node.js

AWS

Senior

Onsite

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Aircall Inc.

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About Aircall Inc.

Aircall provides cloud-based phone systems for businesses, integrating voice, SMS, and call analytics with CRM and helpdesk tools like Salesforce and HubSpot. Its platform supports remote teams, scalable call centers, and real-time analytics, enabling companies to manage customer interactions without on-premise hardware. Founded in 2014, the company serves mid-market and enterprise clients across North America and Europe, emphasizing ease of deployment, API customization, and AI-driven insights to improve support and sales workflows.

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