Aircall7mo ago

Senior Fullstack Engineer

Madrid OfficePermanent Full Time Employeesenior

EngineeringOtherFullstack Developer

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Quick Summary

Overview

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.

Technical Tools

angularawscsharpjavajavascriptreactrubytypescriptdistributed-systemsmentoringmicroservicesperformance-optimization

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.

We are looking for an engaged and passionateSenior Software Engineer to join our growing Communication Platform department and be part of the Number Management team.

You will be responsible for the design, development, deployment, and operation of business-critical features that add customer value.

Best practices, evangelization, and mentoring in your team and across the whole of Engineering will be part of your day to day job.

Quality, excellence, and agility drive our delivery processes and you will help us level these up.

Using Typescript and Ruby back-end stacks, appropriate for each requirement, but always hosted on AWS, we build added value and resilient services on top of voice and Al capabilities, and fully integrated with our customers' business critical tools.

Participate in requirements analysis to help with providing the right technical and business solutions for our customers

Have key responsibilities within the design, architecture, and end-to-end delivery of key modules

Write clean scalable code and test and deploy applications and systems

Review, update, refactor, and debug code

Be part of an engineering organization delivering high quality, secure, voice solutions to Aircall clients

Involvement in product and platform performance optimization and live site monitoring

Participate in an on-call rotation to respond to critical system issues and ensure continuous system reliability

Mentor team members

Join a small, collaborative team with a mindset that values autonomy and proactivity while ensuring you are never alone.

The team is spread between France, Spain, India and Portugal, promoting a diverse and inclusive work culture.

Sharing and collaboration are key within the team, encouraging open communication and teamwork to achieve the best outcomes.

You have at least 5+ years of experience in backend development with preferably a typed language (Typescript/Node.js, Java, C#) with a focus on delivering for scalability, availability, security and performance

You have at least 2+ years of experience working on frontend applications, preferably with React, but experience with Angular is also valued.

You have experience with serverless architectures, microservices or distributed systems.

You have worked extensively with AWS in a production environment and understand how to design for, deploy on and get the best out of, the environment and services provided by Amazon

You can talk easily and spontaneously about most of the offerings on AWS, when to use them, and how, and can explain to junior engineers

Security is at the forefront of your mind in everything that you do

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.

Location & Eligibility

Where is the job

Madrid Office

Hybrid — some on-site time required

Who can apply

Open to applicants worldwide

Listed under

Worldwide

Listing Details

Posted: October 24, 2025
First seen: March 26, 2026
Last seen: June 10, 2026

Posting Health

Days active: 75
Repost count: 0
Trust Level: 33%
Scored at: June 10, 2026

Signal breakdown

freshnesssource trustcontent trustemployer trust

Apply for this position

Aircall

lever

We believe in the power of conversation. We want to empower Sales & Supports teams to truly connect with customers, bring meaning to a conversation, and create long-lasting business impact.

Employees

750

Founded

2014

Domain

Jobs

External application · ~5 min on Aircall's site

Please let Aircall know you found this job on Jobera.