Front End / Fullstack Engineer - Messaging Team

Aircall Inc.

Job Overview

Location

Madrid Office

Job Type

Full-time

Full Job Description

📋 Description

• Design, develop, and maintain scalable front-end interfaces for Aircall’s messaging platform, integrating voice, SMS, WhatsApp, and AI features into a unified customer communications workspace.
• Collaborate with product managers, UX designers, and backend engineers to translate complex customer communication workflows into intuitive, high-performance user interfaces.
• Build and optimize reusable UI components using modern JavaScript frameworks, ensuring consistency across web and mobile platforms.
• Implement real-time features such as live call monitoring, AI Assist Pro suggestions, and automated post-call workflows with low-latency data streaming.
• Integrate third-party APIs for telephony, messaging services, and AI models to enhance platform functionality and user experience.
• Participate in code reviews, pair programming sessions, and sprint planning to maintain high code quality and foster team knowledge sharing.
• Debug and resolve front-end performance issues, including rendering bottlenecks, memory leaks, and cross-browser compatibility challenges.
• Contribute to the evolution of the design system by aligning UI patterns with accessibility standards and Aircall’s brand guidelines.
• Work closely with the AI team to surface real-time insights from AI Voice Agent and AI Assist outputs directly within the user interface.
• Ensure all front-end code is testable, well-documented, and follows established engineering best practices for scalability and maintainability.
• Support the deployment of features through CI/CD pipelines and monitor application health using observability tools.
• Maintain and improve the responsiveness and accessibility of the platform across devices and network conditions.
• Actively contribute to technical discussions around architecture decisions, tooling improvements, and front-end stack evolution.
• Engage in cross-functional initiatives to improve customer onboarding, reduce support tickets, and increase platform adoption through UI/UX enhancements.
• Adhere to Aircall’s hybrid work model by spending two days per week in the Madrid office, collaborating in person with the messaging team and broader engineering group.
• Stay current with emerging front-end technologies and evaluate their applicability to Aircall’s product roadmap and engineering goals.
• Provide mentorship and feedback to junior engineers on the team, promoting a culture of continuous learning and technical excellence.

🎯 Requirements

• Proficiency in modern JavaScript frameworks (React, Vue, or similar) for building dynamic, component-based user interfaces
• Experience building and maintaining scalable front-end applications with real-time data interactions
• Strong understanding of RESTful APIs and integration with backend services
• Familiarity with testing frameworks (Jest, Cypress, etc.) and CI/CD pipelines
• Experience working in a hybrid environment with regular in-office collaboration
• Ability to collaborate effectively with product, design, and backend teams in a fast-paced, product-driven culture

🏖️ Benefits

• Competitive salary and equity package
• Health and wellness benefits
• Flexible working hours within hybrid schedule
• Professional development stipend for courses, conferences, or certifications

Skills & Technologies

Full Stack

Hybrid

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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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