Staff Backend & AI Engineer

About the Position

Staff Backend & AI Engineer, Madrid

Madrid Office

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.

Responsibilities

• Develop and maintain backend services
• Integrate AI solutions to enhance customer communications
• Collaborate with cross-functional teams to drive product innovation

Requirements

• 5+ years of experience in Backend Development
• Proficiency in AI Engineering
• Strong problem-solving skills and a passion for AI

We Offer

• Competitive salary package & benefits
• 100% coverage of medical, dental, and vision insurance
• 401k plan with company matching
• Unlimited PTO
• Wellness, commuter, and childcare reimbursements
• Generous parental leave policy

About the Company

Aircall is a leading AI-powered customer communications platform with a global presence. We are committed to promoting diversity, equity, and inclusion, ensuring a workplace where everyone feels valued and respected.

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 will constantly challenge ourselves to make sure that we live up to our ambitions around diversity, equity, and inclusion, and keep this conversation open. Above all else, we understand and acknowledge that we have work to do and much to learn.

Want to know more about candidate privacy? Find our Candidate Privacy Notice here.

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.