Aircall is a leading cloud-based phone system and communication platform designed for modern sales and support teams. Founded in Paris and now a global SaaS unicorn, the company provides seamless integrations with popular CRM and helpdesk tools like Salesforce, HubSpot, and Zendesk. With over 15,000 customers worldwide, Aircall has scaled its operations to support businesses of all sizes in digitalizing their voice communications through a user-friendly, software-driven approach. In Spain, Aircall maintains a significant and growing hub in Madrid, which serves as a critical base for both engineering and international sales operations. The company is highly attractive to international professionals due to its English-first working environment and its frequent recruitment for multilingual roles covering DACH, LATAM, and EMEA markets. Aircall fosters a diverse, tech-driven culture that emphasizes flexibility, innovation in AI, and professional growth within a global team.

Aircall was founded in 2014 in Paris within the eFounders startup studio. It has since expanded globally with offices in New York, Madrid, London, Berlin, and Sydney, achieving unicorn status in 2021.

Front End / Fullstack Engineer - Messaging Team

Aircall

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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.

Our momentum comes from a simple idea: help teams work smarter, not harder. Aircall's AI Voice Agent automates routine calls, AI Assist streamlines post-call work, and AI Assist Pro delivers real-time guidance so people can do their best work. The result is higher revenue, faster resolutions, and teams that scale with confidence.

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. We're ambitious, product-driven, and execution-focused, with visible impact, fast decisions, and real growth.

How we work at Aircall: We're customer-obsessed, data-driven, and focused on delivering meaningful outcomes. We value ownership, continuous learning, and thoughtful speed. If you thrive in a collaborative, fast-moving environment where trust and impact matter, you'll feel at home here.

This is a hybrid role requiring 2 days per week in our offices located in either Madrid.

Your mission

Enhance the customer's experience by implementing new features and improve the existing ones
Work closely with other teams including other engineering teams, product, design and QA to deliver a high-quality product
Write clean scalable code and test and deploy actions and systems.
Participate in code reviews and provide feedback
Troubleshoot issues with code and provide solutions
Build tooling for a more robust and faster development process
Develop and maintain unit tests to ensure the quality of the application
Be proactive and involved in decisions about our technical stack, process but also product and UX
Write technical documentation and participate in knowledge sharing activities
Keep up-to-date with the latest development trends and suggest improvements to the team

You should have proven experience with:

React
Typescript
Node.js
AWS (Lambda, Appsync, DynamoDB, Aurora, etc)

It would be great if you also have:

Experience with any of Twilio/Bandwidth/Legos/Ruby
API development using any of Rest/GraphQL

About You:

Minimum 6 years experience in backend development
Proficiency in React, Typescript and experience with Node.js.
You have extensive experience with observability using tools like Datadog/Cloudwatch/Prometheus/New relic etc
You have experience with OLTP databases like Postgres/Mysql etc
Security and quality is at the forefront of your mind in everything that you do
Good knowledge about architecture patterns
Shipping and maintaining code in production
Familiar with CI/CD process and tools
Able to communicate in English
Good communication, problem-solving and collaboration skills
Give/receive feedback and be able to bounce back
Curious, optimistic and open-minded
Be comfortable with a remote organisation and happy to gather from time to time

Who you'll work with

⬛️⬛️⬛️⬛️⬛️ Messaging Engineering Team
⬛️⬛️⬛️🔲🔲 Other Engineering Teams
⬛️⬛️🔲🔲🔲 Product/Design
⬛️⬛️🔲🔲🔲 QA
⬛️🔲🔲🔲🔲 Management

Why join us?

🚀 Key moment to join Aircall in terms of growth and opportunities

💆♀️ Our people matter, work-life balance is important at Aircall

📚 Fast-learning environment, entrepreneurial and strong team spirit

🌍 45+ Nationalities: cosmopolite & multi-cultural mindset

💶 Competitive salary package & benefits

DE&I Statement:

At Aircall, we believe diversity, equity and inclusion - irrespective of origins, identity, background and orientations - are core to our journey.

We pride ourselves on promoting active inclusion within our business to foster a strong sense of belonging for all. We're working to create a place filled with diverse people who can enrich and learn from one another. 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.

We are strongly committed to hiring a diverse and multicultural team and we encourage applications from traditionally underrepresented backgrounds.